Digital Conductivity Meter for Online Measurement, 4-20mA/RS485

Digital Conductivity Meter for Online Measurement, 4-20mA/RS485

Digital conductivity meter has functions of automatic temperature compensation, automatic alarm for upper and lower limits, isolated analog signal output 4-20mA, RS485 remote communication, power-down memory, etc. Conductivity meter adopts anti-static metal paint, sealed waterproof back cover and sealed waterproof joints can improve anti-interference ability, anti-corrosion ability and stability. Online conductivity meter and matched 4 conductivity electrodes have measuring range from 0.02μs/cm~0.02ms/cm to 0.02ms/cm~20ms/cm, can be used for online conductivity monitoring of different liquids such as pure water, tap water, sewage, and concentrated liquid.

SKU: CCHN-CDTYM-20

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Delivery date: 6-25 days

Overview

Digital conductivity meter with matched conductivity electrodes has measuring range from 0.02μs/cm~0.02ms/cm to 0.02ms/cm~20ms/cm, L/H alarm, analog output 4-20mA and RS485 communication function.

Specification

Model	CCHN-CDTYM-TDS210-B
Shipping weight	1.5kg
Dimension	9696132mm (HWD), with hole size 92.5*92.5mm
Measuring range *	Conductivity electrode (K=0.01): 1.00~20.00μs/cm Conductivity electrode (K=0.1): 1.0~200.0μs/cm Conductivity electrode (K=1.0): 2~2000μs/cm Conductivity electrode (K=10.0): 20~20000μs/cm (0.02~20ms/cm)
Accuracy	±1%FS
Stability	±1%FS/24h
Temperature compensation	-10~+130℃ (14~266℉) manual/automatic
Electrode built-in sensor	PT1000, accuracy: ±0.5℃
Display	2.4" LCD display
Output signal	2 relay outputs with capacity 250VAC/3A 4-20mA analog output RS485 output with standard MODBUS-RTU
Power supply	220VAC±10%, 50/60Hz, 24VDC

Conductivity electrode dimension

Electrode constant	Electrode material	Length below thread	Diameter	Diameter of measuring hole	Thread	Lead wire length
K=0.01	316 stainless steel	63mm	13mm	6mm	G3/4	10m
K=0.1	316 stainless steel	61mm	13mm	6mm	G3/4
K=1.0	316 stainless steel	61mm	13mm	6mm	G3/4
K=10.0	Polysulfone	69.5mm	23.3mm	6mm	3/4NPT

Reference diagram for electrode selection

Digital conductivity meter and electrode selection diagram
Tips: Application of digital conductivity meter

Conductivity measurement of RO membrane equipment: Digital conductivity meter is suitable for monitoring the conductivity of liquids such as pure water and raw water during the processing of various RO (Reverse Osmosis) membrane equipments.
Conductivity measurement of water and fertilizer: Online conductivity meter can measure the conductivity value of the solution and feed back the signal to the PLC to achieve the precise ratio of water and fertilizer and effectively reduce waste.
Process measurement of conductivity: Monitor the change of liquid conductivity during ultrasonic cleaning, circulating water in air conditioning, and electroplating production, and can set upper and lower limits to achieve automatically alarm.
Environmental water quality monitoring: It is suitable for on-line monitoring of liquid conductivity of tap water, seawater and sewage exhaust outlets, and data can be transmitted with MODBUS via RS485.