The ORP 100 series instruments are extremely rugged and versatile ORP indicators. The display units can be programmed to a user defined value based on a straight line equation or a 16 point lookup table.ORP 100 instruments use a special high input impedance input stage for fast and accurate

ORP measurement. Special electronics ensure that the input impedance is in excess of 1012 ohms. This ensures that there is minimum error due to the extremely high output impedance of the ORP sensors. All these instruments are field programmable and have nonvolatile backup memory that does not need cumbersome batteries. These instruments also have the capability to switch on relay(s) based on user settings.

Automatic calibration is provided for fast field calibration. Optional features include RS485 with MODBUS network capabilities. Optional 4-20mA output can be programmed between any desired range.