Advertisement
Calibrate Menu for ORP
Display
(Factory settings shown)
Set:
Standard
Set:
Slope
Loop Range: mV
-1000 → +1000
Output Mode:
Off
Output Setpnt:
-500 mV
Output Hys:
10 mV
Output Range: mV
-500 → +500
Output PlsRate:
120 pulses/min
Last Cal:
06-30-01
page 8 of 12
Applies a linear offset to the ORP measurement. The ideal value is the average pH of your
application. (A sample of your application at process temperature is recommended.)
>
Applies a slope to the ORP measurement. The slope value and the standard value must be
at least 2 pH units apart. The ideal values are the minimum and maximum values of your
>
application.
Select the minimum and maximum ORP values for the 4-20 mA Current loop output.
Maximum settings are -1000 mV to +2000 mV.
>
Select the desired mode of operation for the Open Collector output: High, Low or
proportional Pulse. The signal may also be disabled if not in use.
>
In Low or High Mode, the Open Collector output will be deactivated when the ORP reaches
this value.
>
In Low or High mode, the Open Collector output will be deactivated at Setpoint ± Hysteresis,
depending on High or Low Setpoint selection. (See details on page 4.)
>
If the output is in PULSE mode, set the start and end point of the range and also set the
maximum pulse rate. (The maximum PULSE rate setting is 400 pulses per minute.)
>
The combined Output Range and Pulse rate settings shown here indicate:
"Start pulsing when the ORP value is -500 and increase the pulse rate up to the maximum
of 120 pulses per minute when the ORP value reaches +500"
>
Use this "note pad" to record important dates, such as annual recertification or scheduled
maintenance.
>
Description
‡ SIGNET 8750-1 pH/ORP Transmitter
Advertisement
