60 answers for measurement decisions.

Selecting a low-flow liquid meter requires matching sensor technology with fluid physical properties and piping constraints. For clean water-based fluids, the FS-910 inline ultrasonic meter offers non-contact measurement down to 120 ml/min. For highly viscous fluids such as syrup or fuel oils, the FP-210 gear meter provides high repeatability across 0.3 to 20000 L/h. Conductive liquids can utilize the FS-510 electromagnetic flowmeter featuring a PEEK lining and 316L electrodes up to 6.3 MPa. However, flow performance varies under extreme process conditions, so this must be confirmed for the selected configuration. To receive a precise recommendation, please provide your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output to our technical engineering team.

Obtaining an exact flow instrumentation quotation requires a complete profile of your operating conditions. Essential parameters include the fluid name, full-scale flow rate range, working temperature, and line pressure. For liquid systems, fluid viscosity and conductivity determine suitability for gear, electromagnetic, or ultrasonic technology. For gas mass flow systems, gas purity and composition are critical for calibration factors. Sensor materials, such as 316L stainless steel, UPVC, or PEEK, must match chemical compatibility. Standard configurations offer 4-20mA or RS485 Modbus RTU outputs. If process conditions fall outside standard specifications, this must be confirmed for the selected configuration. Please share your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for prompt pricing.

Choosing between inline and clamp-on ultrasonic meters depends on maintenance access and installation preferences. Clamp-on flow meters like the FS-930 attach to the pipe exterior using magnetic clamps, eliminating process shut-downs, leak risks, and fluid contamination. Inline models like the FS-910 utilize pre-calibrated UPVC pipe segments, delivering 20ps time resolution and 1.0% accuracy for pipe outer diameters from 5mm to 12mm. While inline units provide defined flow geometry for micro-flows, clamp-on sensors handle lines up to DN100 or higher without pressure loss. Chemical resistance for inline wetted parts depends on concentration and temperature, so this must be confirmed for the selected configuration. Send your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output to verify compatibility.

Fluid viscosity significantly impacts flow sensor mechanics and sound propagation. Gear flow meters like the FP-210 operate on positive displacement principles, where rotating gears maintain reading accuracy of +/-0.5% in viscous media such as syrups, honey, and asphalt up to 2x10^6 mm2/s. Conversely, transit-time ultrasonic meters like the FS-910 require ultrasonic wave transmission through the fluid, operating reliably when liquid viscosity remains below 300 cSt. Highly viscous fluids can attenuate ultrasonic signals or increase differential pressure in gear chambers. Because extreme viscosity shifts alter calibration curves, performance must be confirmed for the selected configuration. Contact us with your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Gas volume changes substantially with fluctuations in process pressure and temperature, whereas mass remains constant. Thermal gas mass flow meters like the FS-600 and FS-620 utilize MEMS thermal sensing chips to directly measure molecular mass flow, outputting standardized mass or volumetric flow rates scaled to standard conditions such as 20°C and 101.325 kPa. This eliminates the added cost and potential error of installing secondary pressure and temperature sensors for compensation. Standard calibrations are performed using dry air, so multi-gas conversion factors or real-gas calibrations must be confirmed for the selected configuration. Provide your gas medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for application verification.

Harsh chemical plants expose transmitters to corrosive atmospheres, moisture, electrical noise, and potential explosion hazards. The AE200 field transmitter features a two-wire intrinsically safe design with isolated transmission outputs to prevent ground loop interference in petrochemical environments. For multi-parameter field sites, the AU400 provides IP66 protection, an AC/DC power supply, and UL94V-0 flame retardancy. Transmitters must be paired with appropriate chemical-resistant pH, conductivity, or DO sensors. Since mounting arrangements and safety certifications vary by site region, specific explosion-proof compliance must be confirmed for the selected configuration. Please inform our engineering team of your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Multi-channel liquid analytical transmitters streamline operations where multiple parameters dictate process quality. The AE600 field transmitter features a 4.0-inch color touchscreen with dedicated dual-channel algorithms specifically tailored for biopharmaceutical fermentation pH and DO tracking. The AU400 universal controller automatically recognizes digital sensors across dual channels, offering quick display switching between numerical readings and real-time trend curves. Using multi-channel units cuts installation footprint and enclosure wiring expenses. However, sensor power budgets and channel isolation options vary, so this must be confirmed for the selected configuration. Submit your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output to customize your transmitter package.

Evaluating long-term maintenance costs is vital when choosing liquid analytical sensors. Traditional liquid-filled or gel pH sensors experience electrolyte depletion over time, whereas models like the AS3250 utilize silver ion traps and pressurized reference systems to minimize drift during steam sterilization. Optical dissolved oxygen sensors like the AS6860i eliminate polarographic electrolyte refilling and membrane cap replacements entirely. For conductivity, electrodeless inductive sensors like the AS7250 remove polarization and electrode fouling in dirty fluids. Because maintenance intervals depend on process chemical exposure and CIP cycles, exact maintenance schedules must be confirmed for the selected configuration. Provide your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

High operating temperatures degrade standard analytical sensors by softening seals, increasing reference electrolyte diffusion, and damaging glass membranes. The AS3250 pH electrode utilizes special high-temperature gel formulations and 400 Mohm glass impedance to withstand steam sterilization up to 130°C. The AS6800 polarographic DO sensor features a 316L body and reinforced steel mesh membrane head rated for 135°C sterilization at 1.5 bar. For conductivity, PEEK-molded AS7250 inductive sensors operate up to 150°C and 12 bar. Automatic temperature compensation must be configured in paired transmitters. Since combined high temperature and chemical aggressiveness reduce lifespan, performance must be confirmed for the selected configuration. Send us your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Selecting the communication protocol depends on control system architecture and data requirements. Standard isolated 4-20mA current loops provide reliable noise-immune transmission for primary process parameters over long cable distances. Digital RS485 Modbus RTU interfaces, available on transmitters like the AU400 and B Series DIN Rail units, allow digital PLCs to read primary values, secondary temperature data, diagnostic status, and execute remote calibrations. Wireless options like NB-IoT are also available on selected models. Electrical isolation and power loop requirements vary, so exact field wiring compatibility must be confirmed for the selected configuration. Share your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output with our application engineers.

The FS-600 utilizes advanced MEMS thermal flow sensor technology to deliver high sensitivity, rapid response (50-1000 ms), and strong anti-interference capabilities. Available standard flow ranges span 0.5-50 L/min (0.03-3 m3/h) up to 5-500 L/min (0.3-30 m3/h), with maximum measurable capacity reaching 1000 NL/min. The meter operates under working pressures up to 1.0 MPa and medium temperatures from -10°C to 55°C, featuring a 360-degree rotatable display. Measurement accuracy is +/- (2.0 + 0.2 FS)%. Since non-air gases require specific calibration factors, target gas compatibility must be confirmed for the selected configuration. Provide your gas medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output to verify sizing.

The FS-605 thermal gas mass flow meter is designed for flexible multi-gas monitoring across analytical and industrial equipment. It supports selectable internal gas curves for air, N2, O2, Ar, and CO2, covering flow full-scales from 0-0.1 L/min up to 0-200 L/min (0-12 m3/h). It delivers linear voltage (1-5V), current (4-20mA), or digital RS485 Modbus RTU outputs with a response time under 10 ms. Operating pressure is rated up to 1 MPa. Accuracy is <= +/-2.0% FS with zero drift <= 0.5% FS. However, non-standard gas mixtures must be confirmed for the selected configuration. Please submit your gas medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

The FS-620 thermal gas mass flow meter integrates a high-sensitivity MEMS sensing chip to measure dynamic gas flows with fast response times between 50 ms and 1000 ms. Featuring a 1:100 turndown ratio, standard full-scale models span from micro-flows of 0.001-0.1 L/min (0.00006-0.006 m3/h) to 3-300 L/min (0.18-18 m3/h). Standard body materials include anodized aluminum, 304, or 316 stainless steel with G1/2 or G1/4 female thread connections. Working pressure is rated at <= 1.1 MPa, with an optional 1.6 MPa rating. Gas calibration factors for specialty gases must be confirmed for the selected configuration. Contact our engineering team with your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

The primary distinction lies in active flow regulation. The FS-620 acts purely as a measuring meter, outputting flow data via 4-20mA or RS485 Modbus. The FC-620 integrates a high-precision electromagnetic proportional valve and closed-loop control electronics, enabling automatic flow adjustment across a 1% to 100% FS control range with a stabilization time <= 1.5 seconds. The FC-620 operates across a maximum differential pressure of 0.6 MPa and working pressure up to 1.1 MPa. Both units feature a 1:100 turndown ratio and G1/4 thread connections. Specific valve differential pressure conditions must be confirmed for the selected configuration. Provide your gas medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

The FS-615 inline thermal gas flow meter is engineered for pipe installations across DN20 to DN40 sizes, supporting flow rates from 10-1000 L/min (0.6-60 m3/h) for DN20 up to 40-4000 L/min (2.4-240 m3/h) for DN40. Its wide measurable velocity range of 1 to 100 Nm/s enables high-sensitivity gas leak detection. Constructed with 316 stainless steel or aluminum body options, the sensor tolerates fluid pressures up to 3.0 MPa and sensor temperatures from -40°C to +250°C. Accuracy is rated at +/-1 to 2.5%. Non-stop hot-tap installation options require special customization, so installation method must be confirmed for the selected configuration. Send your gas medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for confirmation.

The FS-618 split-type design is advantageous when process piping is isolated inside enclosures or subjected to high ambient vibration. By separating the MEMS sensing block from the display controller, operators can monitor real-time gas flow and configure alarms safely from a remote panel. The FS-618 features improved full-scale zero-point stability compared to conventional thermal meters, with an accuracy rating of +/-1.5% FS and a 100:1 turndown ratio. Standard flow ranges span 0-100 L/min to 0-1000 L/min (0-60 m3/h). Its optimized internal flow channel significantly lowers pressure drop, saving compressor energy. Maximum pressure is rated up to 1.0 MPa. Cable extension limits and specific mounting hardware must be confirmed for the selected configuration. Submit your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Engineered for demanding laboratory research and semiconductor gas delivery, the FC-630 mass flow controller covers ranges from 2 SCCM up to 6000 SLM. It achieves high full-scale accuracy of +/-0.5% FS and linearity of +/-0.5% FS, warming up in 30 seconds to reach optimal precision within 5 minutes. The internal proportional valve operates at a working pressure differential of 0.1-0.5 MPa while maintaining a low pressure drop below 0.01 MPa. Base materials are stainless steel with fluororubber, neoprene, or nitrile seals, offering leak tightness of 1x10^-8 Pa.m3/s. Maximum withstand pressure reaches up to 3 MPa or 10 MPa depending on base configuration. Seal compatibility for corrosive gases must be confirmed for the selected configuration. Provide your gas medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

The FP-6010 insertion thermal gas flow meter offers an economical solution for monitoring compressed air, nitrogen, oxygen, biogas, and aeration gas in large industrial ducts and pipes. Designed for line sizes from DN50 (0.7-706 Nm3/h) to DN1000 (282-282,743 Nm3/h), it measures gas flow velocities between 0.1 m/s and 100 m/s with 1% accuracy. The instrument operates across medium temperatures from 0°C to 200°C and supports RS485/RS232 Modbus RTU communications alongside 4-20mA outputs. Hot-tap ball valve isolation mechanisms allow insertion without process shutdown. Proper insertion depth and pipe hot-tap fittings must be confirmed for the selected configuration. Please submit your gas medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

The FS-910 inline ultrasonic flow meter is specifically engineered for precise micro-flow detection in liquid dispensing, laboratory reagents, and chemical dosing. Powered by an advanced measurement chip with 20ps time resolution, it delivers 50 ms response times and +/-1.0% accuracy across flow velocities from 0.1 m/s to 5.0 m/s. Three standard pipe outer diameter models are offered: -5 (120-6000 ml/min), -B (300-15000 ml/min), and -12 (680-34000 ml/min). Wetted parts are constructed from UPVC rated for 0.3 MPa pressure. Display features include a 4-direction rotatable 2.4-inch IPS LCD. Fluid chemical compatibility with UPVC must be confirmed for the selected configuration. Provide your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for confirmation.

The FS-9X micro-flow ultrasonic flow meter features a non-invasive clamp-on design with hand-tightened screws, eliminating fluid contact, contamination risks, and pressure drop. Designed for small plastic tubing with outer diameters between 6mm and 12.7mm (OD 6 to OD 12.7), it measures liquid velocities from 0.1 m/s to 5.0 m/s with +/-2.0% accuracy and 50 ms response time. The unit displays instantaneous flow, velocity, and daily/yearly totalized values on a 2.4-inch IPS LCD screen, offering 4-20mA and RS485 Modbus RTU communications. Because plastic tube wall thickness and material elasticity influence sound transmission, tube material compatibility must be confirmed for the selected configuration. Share your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output with our team.

The FS-920 is an injection-molded inline ultrasonic flow meter designed for industrial water and chemical reagent distribution. Equipped with UPVC double-union connections, it allows rapid installation and reliable sealing without complex pipe threading. Four standard pipe outer diameter models are available: OD20 (0.92-70 L/min), OD25 (1.36-150 L/min), OD32 (2.71-200 L/min), and OD40 (4.24-330 L/min / 19.8 m3/h). It operates at working pressures up to 0.3 MPa and medium temperatures from 0°C to 60°C with an IP66 waterproof rating. Measurements maintain +/-1.0% accuracy across 0.1 to 5.0 m/s velocities. Chemical compatibility for suspended impurities (>4%) must be confirmed for the selected configuration. Send your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output to verify sizing.

The FS-930 non-contact clamp-on ultrasonic flow meter simplifies temporary or permanent flow monitoring. Featuring a unique magnetic guide design, the upper and lower sensor clamps automatically align and lock onto pipes, enabling mounting completion in 2-3 minutes. It covers pipe outer diameters from 9.53 mm (DN6) up to 116 mm (DN100), with customizable large-diameter options up to DN250. Equipped with a 50ps time-resolution processing chip, it measures velocities from 0.1 m/s to 5.0 m/s with +/-2.0% accuracy. The host unit features an OLED screen, 4-20mA, RS485 Modbus RTU, and OCT alarm outputs. Pipe material sound speed parameters must be confirmed for the selected configuration. Submit your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for confirmation.

While both the FS-930 and FS-950 share magnetic clamp-on mounting, non-contact measurement, and 2-3 minute setup, the FS-950 adds dedicated temperature sensing capabilities. The FS-950 split model includes an auxiliary temperature sensing wire to display real-time fluid temperature on its 2.4-inch OLED screen alongside flow velocity and totalized volume. Furthermore, the FS-950 split-type offers extended process temperature options up to 120°C, compared to 70°C max on the FS-930 split model. Standard integrated models for both series operate from -10°C to 50°C. Temperature sensor accuracy and thermal coupling grease requirements must be confirmed for the selected configuration. Provide your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output to choose the right model.

Choosing between integrated and split-type clamp-on flow meters depends on display accessibility and thermal exposure. Integrated models combine the ultrasonic transducers and transmitter display into a single clamped housing, ideal for open, room-temperature piping (-10°C to 50°C). Split-type models like the FS-930 Split or FS-950 Split separate the magnetic transducer clamps from the display controller using a 2.0-meter interconnecting cable (extendable to 20m). This allows the display unit to be wall-mounted in convenient operating locations while transducers operate on process lines running up to 70°C (standard split) or 120°C (high-temp split). Cable routing and anti-corrosion shell options must be confirmed for the selected configuration. Send your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for guidance.

Transit-time ultrasonic measurement relies on high-frequency sound waves propagating across moving liquid streams. All standard CurioSens transit-time flow meters—including the FS-910 inline micro-flow meter, FS-920 industrial union meter, FS-930/FS-950 clamp-on series, and FS-9X tubing sensor—are specified for applicable liquid viscosities below 300 cSt (mm2/s). Liquids with higher viscosities, such as heavy oils or concentrated polymers, absorb sound energy and alter laminar velocity profiles, potentially reducing signal-to-noise ratios. For viscous liquids above 300 cSt, positive displacement gear meters like the FP-210 should be evaluated instead. Signal penetration in non-Newtonian liquids must be confirmed for the selected configuration. Share your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output with our application engineers.

The FP-960 ultrasonic flow meter is engineered for large-scale liquid flow measurement in water distribution, HVAC, and industrial process lines. Utilizing highly integrated multi-layer PCB electronics, it delivers +/-1.0% accuracy across velocity ranges from 0 to +/-12 m/s (0 to +/-40 ft/s) with 0.2% repeatability. Dual encapsulated transducers connect via twin-shielded 10-meter cables (extendable up to 200m) and support V, N, Z, or W mounting methods based on pipe size from 25 mm to 2000 mm. Output options include isolated 4-20mA, OCT pulse, relay, and RS485 Modbus. Host housing is available in PC plastic or CNC aluminum alloy. Signal strength on lined pipes must be confirmed for the selected configuration. Please submit your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Clamp-on ultrasonic flow meters represent a non-invasive flow measurement solution. Because transducers clamp directly onto the outer wall of plastic or metal piping (such as FS-930, FS-950, or FS-9X), no internal components restrict fluid motion. This eliminates pressure loss across the meter, reducing pump energy requirements. Furthermore, because no wetted seals or internal sensors contact the liquid, process fluids remain completely free from cross-contamination, leaks, or bio-film accumulation. This non-contact design allows installation and servicing without interrupting active production. Acoustic signal coupling through multi-layer or insulated pipes must be confirmed for the selected configuration. Send your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for evaluation.

Transit-time ultrasonic meters (such as the FS-910, FS-920, and FS-930) calculate flow by measuring time differences between upstream and downstream acoustic pulses. For accurate signal transmission, the liquid medium must be homogeneous. CurioSens transit-time meters tolerate minor particulate impurities or bubbles up to <= 4% concentration. Higher concentrations of entrained air, heavy slurries, or undissolved solids scatter acoustic beams, leading to degraded signal quality or temporary measurement drops. In aerated or heavy slurry applications, alternative technologies like Doppler ultrasonic or electromagnetic meters (FS-510) should be specified. Exact particle size and concentration thresholds must be confirmed for the selected configuration. Provide your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for assistance.

The AS3250 pH electrode is a versatile bioprocess sensor designed for demanding fermentation vessels requiring frequent SIP or autoclaving up to 130°C (32 to 266°F). Its 400 Mohm high-impedance glass membrane withstands severe thermal shocks, while the silver ion capture trap prevents sulfide precipitation and diaphragm clogging. The pre-pressurized gel electrolyte supports operating pressures from 0 to 5 bar (with features rated up to 6 bar), ensuring stable reference potential. Standard fitting options include PG13.5 threads with VP6, S8, or K8S connectors and PT1000 temperature sensors. Because specific media formulations impact glass erosion rates, long-term life must be confirmed for the selected configuration. Provide your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output to verify sizing.

Autoclaving and steam sterilization subject pH glass membranes and reference junctions to rapid thermal expansion, often causing electrolyte dilution and zero-point drift. The AS3030-C pH electrode incorporates a 200 Mohm sensitive membrane paired with a high-temperature resistant gel formulation and ceramic core reference element. This design maintains reference electrolyte stability, resisting toxic substances and minimizing pH offset after autoclave cycles at temperatures up to 130°C and pressures to 5 bar. Available insertion lengths include 120mm, 150mm, 225mm, 325mm, and 425mm with PG13.5 threads. Because buffer calibration intervals depend on cycle frequency, post-sterilization offset limits must be confirmed for the selected configuration. Send your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for review.

Measuring pH in ultrapure and pure water (<10 uS/cm) is challenging due to high sample resistance, streaming potentials, and junction noise. The AS2110 pH electrode solves these issues using a low-resistance glass membrane with a large surface area, paired with three ceramic diaphragms and low-viscosity gel electrolyte to accelerate ion exchange. This construction ensures stable, fast pH measurements in pure water lines down to >0.1 uS/cm conductivity. It operates from -5°C to 100°C under pressures up to 5 bar, featuring PG13.5 process connections and optional PT1000 temperature sensors. Flow cell velocity impact on reference outflow must be confirmed for the selected configuration. Please submit your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

In chemical process lines containing strong oxidizers, organic solvents, or toxic compounds, standard reference junctions become contaminated quickly. The AS4030 industrial pH electrode employs Swiss sensor technology featuring a dual Ag/AgCl reference system with a double gel chamber. This creates an extended diffusion path, while the outer annular PTFE diaphragm prevents ingress of aggressive chemicals, acids, alkalis, and poisons. It operates across 0-14 pH, temperatures from 5°C to 100°C, and pressures up to 10 bar at 25°C (5 bar at 100°C). Connectors include VP6, AK9, and S8 with PG13.5 threads. Solvent swelling compatibility for the PTFE ring must be confirmed for the selected configuration. Contact our engineering team with your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Suspended solids, slurries, and precipitating salts quickly block porous ceramic diaphragms on traditional pH sensors, causing rapid signal loss. Manufactured in Switzerland, the AS4260 pH electrode features two open liquid junctions in direct contact with a solid polymer electrolyte. Without a ceramic diaphragm, particulate fouling and clogging are completely avoided. The solid polymer electrolyte withstands severe thermal and mechanical stresses up to 135°C and pressures up to 15 bar at 25°C (5 bar at 135°C). Measuring range covers 0-14 pH with S8 or VP6 connectors and PG13.5 threads. Abrasion resistance under high fluid velocity must be confirmed for the selected configuration. Share your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for confirmation.

The AS4800 is a high-specification pH electrode built in Switzerland for demanding chemical and industrial applications. It utilizes a layered electrolyte bridge that extends chemical diffusion distance, paired with a sealed reference element and pressurized gel. The external PTFE annular diaphragm resists fouling from oxidizers, solvents, and strong acids or bases. Pressure ratings are confirmed for 15 bar at 25°C, 12 bar at 100°C, and 7 bar at 130°C across a 0-14 pH range. Insertion lengths include 120mm, 225mm, 325mm, and 425mm with S8 or VP6 connectors. Chemical resistance against HF or concentrated hot alkalis must be confirmed for the selected configuration. Provide your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output to verify compatibility.

Selecting the correct electrode connector depends on sensor wiring and environmental sealing needs. The VP (VarioPin) multi-pole connector system (VP6/VP8) carries both high-impedance glass pH signals and integrated PT1000/PT100 temperature sensor lines in one shielded cable, providing IP68 moisture protection ideal for moist or steam-sterilized bioprocess vessels. Standard coaxial connectors like S8 (paired with AS9 cables) or K8S/K9 (paired with AK9 cables) connect single-variable pH signals, requiring separate temperature wiring if needed. Cable options include standard lengths from 1m to 30m. High-humidity environments mandate sealed VP connections. Exact pinouts must be confirmed for the selected configuration. Share your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

In biopharmaceutical culture media and proteins containing sulfides or sulfur compounds, standard Ag/AgCl reference electrodes release trace silver ions that react at the ceramic liquid junction. This reaction forms insoluble silver sulfide (Ag2S) precipitates, clogging the junction pores and causing measurement noise, slow response, and large pH offset after steam sterilization. The silver ion capture trap built into sensors like the AS3250 binds silver ions internally before they reach the diaphragm. This maintains clear electrolyte outflow, extends electrode operating life, and reduces post-SIP recalibration drift. Chemical compatibility with strong sulfide solutions must be confirmed for the selected configuration. Send your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for analysis.

Choosing between optical and polarographic DO sensors depends on maintenance budgets and operating workflow. The AS6860i optical DO sensor uses Swiss fluorescence quenching technology to deliver instant plug-and-play measurement from 20 ppb to saturation without consuming dissolved oxygen or requiring polarization. It features an IP68 316L body, RS485 Modbus RTU, and 4-20mA outputs. The AS6800 polarographic electrode operates from 8 ppb to saturation, providing reliable electrochemical measurement but requiring a polarization period and periodic electrolyte/membrane cap maintenance. Both sensors withstand SIP sterilization at 135°C (1.5 bar). Specific media chemical compatibility must be confirmed for the selected configuration. Please submit your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Traditional electrochemical DO sensors require hours of electrical polarization before calibration, alongside regular filling solution changes and fragile membrane cap replacements. The AS6860i fluorescence method optical DO sensor eliminates these steps entirely. Because light emission and phase-shift sensing consume no oxygen, the sensor operates without sample flow dependence or electrolyte solutions. It provides plug-and-play operation with rapid response during every fermentation batch, featuring RS485 Modbus RTU and 4-20mA outputs directly from the sensor. Operating pressure is rated up to 6 bar, with SIP sterilization tolerance up to 135°C. Optical sensing cap replacement intervals under frequent SIP must be confirmed for the selected configuration. Contact us with your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

The AS6800 polarographic oxygen electrode is constructed for biopharmaceutical vessels and culture fermenters requiring clean-in-place and steam sterilization cycles. It features a 316L stainless steel body with a hygienic polished surface (Ra <= 0.4 um / N5) and an imported steel-mesh reinforced PTFE membrane cap designed to resist thermal deformation. The electrode operates continuously from 0°C to 80°C under working pressures from 0.2 to 6 kg (bar), withstanding SIP steam sterilization up to 135°C at 1.5 bar. Standard air signal output ranges from 50 to 110 nA at 25°C. Polarization voltage and transmitter setup must be confirmed for the selected configuration. Provide your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

In biopharmaceutical, food, and beverage processes, sensor wetted materials must comply with sanitary regulatory standards to prevent leaching and bio-fouling. The AS6860i optical DO sensor features a main body constructed from 316L stainless steel with a hygienic surface roughness of Ra <= 0.4 um (N5), preventing cellular attachment. All elastomeric seals utilize FDA-compliant and USP Class VI certified EPDM O-rings. The sensor connects via PG13.5 process threads and VP8 cable connectors, operating on 24VDC power (<1W). While materials meet USP Class VI, specific CIP cleaning agent compatibility must be confirmed for the selected configuration. Send your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output to verify compliance.

Unlike traditional analog DO electrodes that require external transmitter processing, the AS6860i is a smart digital sensor with built-in signal conditioning. It outputs RS485 Modbus RTU digital signals and an isolated 4-20mA current loop directly from the sensor body, enabling seamless integration into PLC, DCS, or SCADA architectures. Operating on 24VDC power (<1W), it measures dissolved oxygen from 20 ppb up to saturation. Available insertion lengths include 120mm, 220mm, 320mm, and 420mm. Dual output mapping and Modbus register addresses must be confirmed for the selected configuration. Share your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output with our technical team.

Polarographic DO electrodes operate by applying a constant polarization voltage (approximately -0.6 to -0.8V) across the noble cathode and anode. When power is first applied or interrupted, time is required for the electrochemical cell to establish a stable boundary layer and constant background current. For the AS6800, polarization should continue for several hours until the output current in air stabilizes between 50 and 110 nA at 25°C. Calibrating prior to full polarization results in slope errors. In contrast, optical sensors like AS6860i require zero polarization time. Transmitter polarization voltage settings must be confirmed for the selected configuration. Provide your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for setup details.

The AS6860i fluorescence optical sensor is calibrated for wide-range dissolved oxygen tracking from trace levels up to full saturation. Its lower detection limit starts at 20 ppb (0.02 ppm), making it effective for monitoring oxygen-sensitive fermentation steps, boiler feed water, or beverage deaeration lines. The sensor operates under pressures from 0 to 6 kg (bar) and liquid temperatures from 0°C to 50°C during measurement, withstanding thermal exposure up to 135°C during SIP cycles. Output accuracy and response kinetics remain fast across the entire range. Trace ppb range calibration procedures must be confirmed for the selected configuration. Please submit your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Flow dependence is an inherent characteristic of electrochemical oxygen sensing. Polarographic sensors like the AS6800 continuously reduce oxygen molecules passing through the membrane cap, depleting dissolved oxygen at the cathode surface. If liquid velocity drops below a critical threshold, readings fall artificially low. Consequently, polarographic probes require constant sample flow or agitator stirring. Optical DO sensors like the AS6860i measure oxygen partial pressure via phase-shift quenching of excited luminophores without chemical consumption. As a result, optical readings remain stable in stationary fluids or variable-speed bioreactor mixing. Flow velocity conditions in flow cells must be confirmed for the selected configuration. Send your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Monitoring conductivity in pure water treatment and semiconductor rinse lines requires high surface cleanliness and resistance to electromagnetic interference. The AS7000 electrode utilizes a 2-pole 316L stainless steel structure with a sanitary 1.5-inch Tri-Clamp flange connection, meeting strict hygienic requirements. It includes up to 8 internal factory calibration points to ensure full-scale accuracy of +/-1% across measurement ranges of 0-200 uS/cm (K=0.01) or 0-2000 uS/cm (K=0.1) with 0.01 uS/cm resolution. Operating parameters support temperatures from 0°C to 120°C and pressures up to 6 bar at 25°C, with built-in automatic temperature compensation. Cable shielding requirements must be confirmed for the selected configuration. Submit your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Four-electrode conductivity technology overcomes polarization errors inherent in two-pole sensors when measuring medium to high conductivity liquids. The AS7100 sanitary four-electrode sensor provides continuous measurement across 0.02 to 500 mS/cm, making it suitable for pharmaceutical buffer preparation, food processing, and CIP chemical tracking. The sensor body is molded from PEEK with electrode options in 316L stainless steel or Hastelloy C22 for aggressive media. It operates across temperatures from -20°C to 135°C and pressures up to 6 kg (bar), featuring PG13.5 process threads and VP6 connectors with integrated PT1000 temperature elements. Transmitter cell constant scaling must be confirmed for the selected configuration. Provide your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Clean-In-Place (CIP) systems utilize aggressive chemical concentrates such as 2-5% sodium hydroxide and nitric acid solutions that rapidly corrode or foul traditional contacting conductivity electrodes. The AS7250 inductive (toroidal) sensor measures conductivity magnetically through enclosed primary and secondary coils inside a seamless PEEK or PFA toroidal housing. Covering 0.05 to 2000 mS/cm across temperatures from -20°C to 150°C and pressures up to 12 bar, it withstands thermal shocks and CIP chemical attack without maintenance. When paired with CurioSens transmitters, internal acid/base concentration tables automatically convert mS/cm into solution weight percentage. Concentration curve selection must be confirmed for the selected configuration. Send your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

In two-electrode conductivity sensors like the AS7000, ion accumulation at the electrode interface creates an electrical polarization resistance that acts in series with solution resistance, causing significant measurement underestimation in conductive fluids (>2 mS/cm). Four-electrode sensors like the AS7100 solve this by using two outer electrodes to pass alternating current and two inner voltage electrodes to measure potential drop across the liquid. Because virtually no current flows through the voltage-measuring circuit, contact polarization and surface fouling errors are eliminated. This enables a single 4-electrode sensor to cover wide spans from 0.02 to 500 mS/cm. Temperature compensation slope factors must be confirmed for the selected configuration. Submit your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Aggressive process streams containing concentrated sulfuric acid, hydrochloric acid, or hot caustic solutions destroy metal electrodes. The AS7250 inductive conductivity sensor encapsulates its toroidal coils entirely inside chemical-resistant PEEK or PFA polymers. PEEK offers mechanical strength and resistance to CIP thermal cycling up to 150°C and 12 bar pressure. PFA provides chemical inertness against harsh oxidizing acids. Both materials feature smooth, non-porous surfaces that resist scale buildup and biological fouling. Process mounting options include companion flanges or threaded fittings with integrated PT1000 temperature elements. Material selection for specific acid concentrations must be confirmed for the selected configuration. Share your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for assistance.

Water conductivity is highly temperature-dependent, changing by approximately 2% to 6% per degree Celsius in pure and ultrapure water lines. The AS7000 2-pole conductivity electrode incorporates an internal precision temperature sensor to provide automatic temperature compensation (ATC) with rapid thermal response (<30 seconds). Paired CurioSens transmitters utilize specialized non-linear pure water temperature compensation algorithms to accurately normalize raw conductivity readings to 25°C standard reference values. The sensor operates under pressures up to 6 bar at 25°C with IP68 protection. Paired transmitter temperature coefficient configuration must be confirmed for the selected configuration. Please submit your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Designed for hygienic applications in biopharmaceuticals and food processing, the AS7100 four-electrode conductivity sensor features a PEEK body with 316L stainless steel or Hastelloy C22 electrodes. It withstands continuous process temperatures from -20°C to 135°C and working pressures up to 6 kg (bar), enabling inline presence during Clean-In-Place (CIP) and Steam-In-Place (SIP) routines without sensor removal. Insertion lengths include 120mm, 225mm, 325mm, and 425mm with PG13.5 process threads and VP6 waterproof connectors. Standard integrated temperature sensing uses a PT1000 element. Elastomer seal ring compatibility for steam exposure must be confirmed for the selected configuration. Send your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Selecting conductivity technology depends on fluid conductivity and fouling potential. 2-pole contacting sensors like the AS7000 measure current between two stainless steel electrodes, providing maximum precision in ultrapure water lines (0-2000 uS/cm). 4-electrode sensors like the AS7100 use separate drive and sense electrodes to eliminate polarization across medium-to-high ranges (0.02-500 mS/cm) in pharmaceutical buffers. Inductive toroidal sensors like the AS7250 use magnetic coils in a PEEK/PFA torus, measuring highly conductive or dirty liquids (0.05-2000 mS/cm) electrodelessly without surface fouling. Sensor cell constant matching must be confirmed for the selected configuration. Provide your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for recommendation.

The AE200 field transmitter is specifically designed for safe operation in hazardous industrial environments such as refineries and chemical processing units. Operating on 24VDC (+/-10%) power with low 2W consumption, its two-wire intrinsically safe circuit prevents spark ignition in flammable atmospheres. The unit processes pH or ORP inputs with high loop accuracy (+/-0.02 pH) and features isolated dual 4-20mA current outputs with HART 7 protocol support. Display options include a 2.8-inch monochrome LCD with bilingual Chinese/English menus inside an IP65 housing. Exact explosion-proof hazardous area classification ratings must be confirmed for the selected configuration. Share your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output with our team.

The AU400 universal field transmitter eliminates the need to stock multiple dedicated controllers. Featuring dual sensor input channels, it automatically identifies connected digital sensors—including pH, ORP, conductivity, DO, turbidity, sludge concentration, residual chlorine, ammonia nitrogen, and COD—enabling true plug-and-play field setup. The transmitter features a 4.3-inch full-view color screen with quick switching between numerical parameter modes and real-time trend curves. It supports AC (85-265V) or DC (21.6-26.4V) power, providing isolated RS485 Modbus RTU communications inside an IP66, UL94V-0 flame-retardant housing. Wireless NB-IoT and mobile app integration are optional. Channel assignment and sensor power supply must be confirmed for the selected configuration. Submit your parameters for advice.

Designed for OEM bioreactor control cabinets, the B Series DIN Rail transmitter optimizes panel space while meeting strict bioprocess batch logging requirements. It incorporates 3-terminal isolation to eliminate signal noise and ground loop interference. Specifically tailored for fermentation systems, its 3-in-1 software design enables electrodes without integrated temperature sensors (such as S8 or AK9 connector pH probes) to utilize a separate vessel PT100 probe for automatic temperature compensation of pH and DO measurements. Operating on 24VDC (<2W), it outputs 4-20mA (NAMUR NE43 compliant) and RS485 Modbus RTU for remote PLC calibration. PLC programming libraries must be confirmed for the selected configuration. Provide your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.

Pure water and ultrapure water exhibit non-linear conductivity and pH changes with temperature due to self-ionization of water molecules. Standard linear temperature compensation introduces significant measurement errors in high-purity water lines. Transmitters like the AE600, AE300, and AU400 integrate dedicated non-linear pure water and ultrapure water temperature compensation algorithms alongside linear, acid, and alkali curves. Supporting PT100, PT1000, NTC10K/30K, and DKK10K temperature sensors, the transmitters automatically normalize readings to 25°C standard values. Input resolution is 0.01 pH or 0.01 uS/cm. Custom temperature curve coefficients must be confirmed for the selected configuration. Send your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output to our engineers.

Biopharmaceutical fermentation demands sterile, highly repeatable process instrumentation. For pH tracking, the AS3250 electrode withstands repeated 130°C SIP cycles with its 400 Mohm glass membrane and silver ion trap. For dissolved oxygen, the AS6860i optical sensor provides zero-polarization, zero-electrolyte measurement with USP Class VI EPDM seals and 316L polished surfaces (Ra <= 0.4 um). Non-contact liquid flow monitoring on flexible single-use tubing is handled by the FS-9X clamp-on ultrasonic meter (OD 6 to 12.7mm). Transmitter integration is simplified using B Series DIN Rail units. Clean-in-place chemical resistance must be confirmed for the selected configuration. Please supply your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for a tailored bioprocess package.

Semiconductor wet bench processing and chemical delivery systems require ultra-clean, corrosion-resistant measurement tools. The FS-910 inline ultrasonic flow meter provides non-contact micro-flow measurement in UPVC pipe lines down to 120 ml/min without moving parts. For ultrapure water (UPW) loop monitoring, the AS7000 2-pole stainless steel conductivity sensor provides +/-1% accuracy down to 0.01 uS/cm resolution with sanitary Tri-Clamp connections. For bulk conductive chemical lines, the FS-510 electromagnetic flow meter features a PEEK lining and 316L electrodes rated up to 6.3 MPa. High-purity PFA chemical compatibility must be confirmed for the selected configuration. Share your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for sizing.

Dosing aggressive chemicals requires careful matching of wetted materials against acid or base reactivity. For highly corrosive or non-conductive reagents, the FP-210 positive displacement gear meter offers a PTFE body option with 316L or alloy gears, measuring flows from 0.3 L/h to 20,000 L/h under pressures up to 50 bar. For clean aqueous chemicals, the FS-920 ultrasonic flow meter provides an injection-molded UPVC body with quick-connect union fittings for lines up to OD40 (DN32). Conductive acid lines can utilize the FS-510 electromagnetic flowmeter with PEEK lining. Chemical resistance under elevated temperatures must be confirmed for the selected configuration. Send your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output to our team.

Medical and laboratory equipment OEMs require compact, reliable instrumentation with standardized digital communications. For gas delivery in analyzers or bioreactor sparging, the FS-600 MEMS thermal gas flow meter provides 1:100 turndown and fast response (50-1000 ms) in a compact block with a rotatable screen. Liquid reagent dosing uses the FS-910 inline ultrasonic meter for micro-flows down to 120 ml/min. Analytical sensor integration is simplified by the B Series DIN Rail transmitter, which offers 24VDC power, isolated Modbus RTU, and compact mounting inside analyzer cabinets. Custom OEM mounting interfaces must be confirmed for the selected configuration. Share your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for OEM customization.