Metex 2200R ORP Analyzer/Controller - Manual (Page 12)

Model 2200R Page 10
4.5 Analog Outputs
4.5.1 The analog output signals consists of a non-isolated 0-1 mA, 0-5 Vdc, and isolated
4-20 mA signals.
4.6.3 From the factory all of the analog outputs have a linear range corresponding to the
full range of the instrument. The outputs can be scaled to another linear range by
entering two values:
• Output High: This is the ORP value at which you wish to have 100% output.
• Output Low: This is the ORP value at which you wish to have 0% output.
4.5.3 When programming, you must ensure that the output range has a span of at least
10% of the full range of the instrument. For applications that require the output to
decrease as the process value increases, i.e. an inverted output, the Output High
value will be less than the Output Low. Refer to Section 5.4.
4.5.4 The instrument may be used to monitor the temperature of the process, in either
°C
or
°F. The 2200R does not control temperature but the 0-5 Vdc and 0-1 mA analog
outputs can be dedicated to follow the process temperature. The 2200R can only
monitor temperature if the ORP probe has a temperature sensor. Refer to Section
5.14.