Basic process analyzers
Industrial ORP instrument transmitter
HDM-137A (2-wire)/ HDM-138A (4-wire)
- Compact and robust aluminum case, simple operation on-site ORP meter.
 - Automate standard solution check. Automatically determines the quality of electrode characteristics.
 - The transmission output range can be changed.
 - With self-diagnosis function in case of failure (burnout output)
 
Measurement range
ORP; -2000 to +2000 mV
