Hanna Industrial Grade ORP Digital Controllers Wall Mounted with Matching Pin, Analog Output, 230V - HI22111-2

HI22111-2 Industrial Grade ORP Digital Controllers Wall Mounted with Matching Pin, Analog Output, 230V by Hanna Instruments

The HI 22 controllers have been engineered with the same outstanding quality and features as the HI 21 meters.

The Fail Safe Alarm System protects these meters against the pitfall of process control, like power interruption or line failure. User selectable timing capability safeguards against overdosing and saves money while protecting the environment. RS485 capability makes this model PC compatible. The microprocessor memory is fully programmable and has a 3-month backup power supply.

These instruments have a differential input, extending electrode life by eliminating ground loop current through the reference. Users can choose between ON/OFF and proportional control as well as selectable current and voltage outputs. For more flexibility and better resolution for chart recorders, choose any two points between 0 and ±2000 mV to correspond to the analog output spans.

Wiring the controllers is simple with extractable terminal modules. A host of self-testing features and user-friendly functions make HI 22 a great value.

• Fully customizable
• RS485 interface
• Differential input for ground loop protection
• Automatic two point ORP calibration
• Last calibration data
• Password protection
• Fail Safe Alarm System
• Overdosing safeguard

Order Information:

Each HI 22 model is supplied complete with instructions.

Choose your configuration
HI 22111-1 single setpoint, on/off controls, analog output, 115V
HI 22111-2 single setpoint, on/off controls, analog output, 230V
HI 22122-1 single setpoint, on/off and proportional controls, RS485 output, 115V
HI 22122-2 single setpoint, on/off and proportional controls, RS485 output, 230V