B Series Rail-mounted Transmitter

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Product Features

Three-terminal isolation enhances anti-interference capability, ensuring stable, reliable, and high-precision measurement performance.
Modbus digital communication enhances resolution and enables the acquisition of sensor data for batch production recording, thereby better meeting compliance requirements. Remote calibration via Modbus RTU, along with one-touch calibration functionality, simplifies PLC programming while delivering higher accuracy.
A dedicated 3-in-1 design for the fermentation industry allows even non-temperature-compensated pH electrodes (such as AK9 or 58-interface pH electrodes) to leverage the fermentation-specific PT100 temperature sensor for humidity compensation of pH and/or DO measurements, thereby enhancing measurement accuracy.

Technical Specifications

Product Name	B-Series Rail-Mounted Transmitter
Power supply	24 VDC, <2 W
Current output: 4–20 mA	0.02 mA / 3.8–20.5 mA (meets NE43 requirements)
Modbus	9600bps
Ambient temperature	-10 to 50 °C
Relative humidity	0 to 95% no cooling

Ion electrode	Stability/Resolution/Range
pH	0.02/0.01/0 to 14 pH
ORP	1/1/-2000 to 2000 mV
Temperature range	0.3%FS/0.1/-10 to 150 °C
Temperature sensor	PT100 0.2/0.01/0-150° PT1000 (optional) 0.1/0.01/0–150 °
pH Calibration (Modbus)	1 o'clock, 2 o'clock, 3 o'clock, process
ORP Correction (Modbus)	1 o'clock, process

Electrical Conductivity/Resistivity	Stability/Display Resolution/Range
2e Non-Ultra-Pure Water Applications	0.5%/0.01 µS/cm/1–2000 µS/cm
2e Ultrapure Water Applications	0.5%/0.01 µs/0–2000 µS/cm, depending on the electrode constant;
4e	0.5%/0.01 µs/5 µs/cm – 500 ms/cm, also dependent on the electrode constant.
Temperature range	0.3%FS/0.1/-10 to 150°C
Temperature sensor	PT1000, custom-made
Correction	1 o'clock, 2 o'clock, the process
Temperature compensation	(Ultra) pure water, linear, none

Dissolved oxygen electrode	Stability/Resolution/Range
ppm DO	0.2%/0.1%/0 to 400% air
Temperature measurement range	0.3%FS/0.1/-10 to 80°C

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杭州孚昇仪表科技有限公司