Brand：Erun
Online Water Conductivity/TDS/Resistivity Monitor
Model：ERUN-SZ1S-A-A4
Conductivity, TDS, resistivity (frequency method)
This product is an on-line intelligent conductivity/TDS/resistivity meter independently developed by our company. It adopts high-performance CPU chip and SMT chip technology to complete the measurement of conductivity/TDS/resistivity and temperature, temperature compensation, and automatic conversion of range, with high precision and good repeatability. Widely used in environmental protection, sewage treatment, thermal power, breeding, food processing, printing, metallurgy, pharmaceuticals, fermentation, chemical industry, tap water and other industries water quality conductivity / TDS / resistivity online monitoring.
Gauge Size: | 218*183*126mm |
Power supply: | AC220V，DC24V |
relays： | 2 or 4 groups of relays, divided into high and low point alarm control Load AC220V/3A |
Analog output: | 1-channel or 2-channel 4～20mA (4-wire), maximum load 750Ω |
Digital Interface: | 1Road or 2 RS485 (ModBus protocol) |
Protection Rating: | IP65 |
Resistance measurement range: | 0.01 electrodes 50～20000kΩ·cm 0.1 electrodes 5～20000kΩ·cm 1.0 electrodes 0.5～20000kΩ·cm 10.0 electrodes 0.05～20000kΩ·cm (Other ranges on request) |
Conductivity measurement range: | 0.01 electrodes 0～20.00μS·cm 0.1 electrodes 0～200.0 μS·cm-1 1.0 electrodes 0～2000 μS·cm-1 10.0 electrodes 0～20.00 mS·cm-1 (Other ranges on request) |
TDS measurement range: | 0.01 electrodes 0~10 ppm 0.1 electrodes 0~100 ppm 1.0 electrodes 0~1000 ppm 10.0 electrodes 0-10000ppm (Other ranges on request) |
Resolution: | 0.01kΩ·cm |
Accuracy: | ±2.0 %(FS） |
Automatic temperature compensation: | 0~100℃ temperature complementary NTC 10K, based on 25℃, temperature complementary coefficient can be corrected. |
Installation Method Schematic | Sensor Size Schematic |
 |
|
Large dot-matrix liquid crystal display, Chinese menu operation. | Factory settings can be restored. |
Watchdog function: ensure that the meter will not die. | Automatic/manual temperature compensation function. |
Power-down protection > 10 years. | The detection value can be set for incremental compensation. |
Multi-parameter simultaneous display: Detection value, temperature, output current, alarm point, etc. are displayed at the same time, intuitive and easy to read. | |
