Protective 4-20ma split type temperature and humidity sensor (4 pages)
Summary of Contents for SONBEST SM2901M
Page 1
User Manual File Version: V21.3.24 SM2901M using the standard DC4-20mA current output signal,easy access to PLC,DCS and other instruments or systems for monitoring 24%soil Moisture state quantities.The internal use of high -precision sensing core and related devices to ensure high reliability and excellent long-term stability,can be customized RS232,RS485,CAN,4-20mA,DC0~5V\10V,ZIGBEE,Lora,WIFI,GPRS and other output methods.
Page 2
SM2901M Us er Ma nual Brand SONBEST Moisture measuring range 0~24% ±3% @25℃ Moisture measuring accuracy Communication Interface DC4~20mA Power DC12~24V 1A Running temperature -40~80° C Working humidity 5%RH~90%RH Wiring instructions Any incorrect wiring can cause irreversible damage to the product. Please carefully wire the cable as follows in the case of power failure, and then connect the cable to confirm the correctness and then use it again.
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