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Basic Water Quality Analyzer

SMR07 series

Conductivity Analyzer

Description

Conductivity Analyzer is connected directly via RS485 communication interface, providing simple, reliable, cost-saving process data with remote monitoring, calibration, configuration and diagnostics capabilities. Housing in a robust IP68 proof enclosure, 1500 N tensile strength Kevlar reinforced cable, up to 1.2 km digital data transmission, the Conductivity Meter is ideally used in water/wastewater industry.

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Features

Replaceable Electrode, Standard M12 Connector
All-in-One Compact Endosure, Built-in Transmitter and Sensors
Robust IP68 Water Submersible Protection, Directly Installed in the Field, No Cabinet Required
Plug & Play, On-line Realtime Measurement
Ultra Low Power Consumption, Ideal for Outdoor Applications
1500 N Tensible Strength Kevlar Reinforced Cable
Temperature Compensation
Surge Protection for Power and RS485 Communication
RS485 Digital Communication, Minimize Cabling and Engineering Cost
Standard Modbus RTU Protocol, Direct Connected with PLC, HMI
Onboard Memory Allowing Users Easily Calibrate and Configure Sensor at Lab and Distribute to Various Fields Sites
AQCFG Software Tool for Data Monitoring, Calibration , Configuration and Diagnosis
IECEx/ATEX Ex ia IIB T5 Ga Explosive Proof Certification

Applications

Drinking water, surface water, groundwater, industry, water treatment, wastewater

Specifications

General

Output Signal: RS485 (Modbus RTU protocol), 19,200 bps, 8 data bits, no parity, 1 stop bit; 4~20 mA
Data Resolution: 16 bits (0.001% FS)
Surge Protection: 4000 V DC
Power: input: 5~12 VDC, 170 mA
Protection: polarity, overload, short circuit
Safety: CE, FCC

Measurement Method
Theoretically, water free of any contaminants will not conduct electricity. The ability to carry on electric current depends on the presence of ions; conductivity increases with increasing ion concentration. Conductance of a solution is calculated by measuring the electrical current between two or four electrodes set a fixed voltage source and immersed in water sample.

SMR07 Conductivity Analyzer

Measurement range	SMR07-1: 0 ~ 500 mS/cm SMR07-2: 0 ~ 50 mS/cm
Accuracy	±2% measured value ±5 μS/cm
Resolution	0.1 μS/cm
Repeatability	±1% measured value
Operation Pressure	Max. 10 Kgf/cm²
Operating Temperature	0 ~ 60 °C
Cell Cconstant	1.00; 10.0
Response Time	1 sec
Protection	IP68
Temperature
Sensor	Pt1000(SMR07-1); NTC 10 K(SMR07-2)
Measurement Range	0~60 °C
Accuracy	±0.1 °C
Resolution	0.01 °C
Repeatability	0.1 °C
Connection	3/4”-14 PT; 5-pin M12 plug
Housing Material	POM
Electrode Material	Epoxy
Depth
Sensor	SS316L; Titanium (optional)
Measurement Range	0~10 m; 0~50 m
Accuracy	±0.1% FS (SS316L); ±0.25% FS (Titanium)
Resolution	0.01% FS
Repeatability	±0.025% FS
Dimension	Φ 36 Χ 381 mm
Weight	analyzer: approx. 150 g cable: 80 g/m