PART THREE - OPERATION
SECTION 5 - ANALYZER CALIBRATION
Rev. 6-501
Model P53 pH/ORP Analyzer (universal-mount 1/2 DIN)
69
5.4 Analog Outputs
(1 and 2) Calibration
☞
match the known mV value of the sample (or reference
solution). Then press
ENTER key
to enter the value,
completing calibration of the point.
10. Press
ENTER key
again to end calibration (“1 POINT
SAMPLE: CONFIRM CAL OK?” screen appears).
11. Re-install the sensor into the process.
12. Press
ENTER key
to display the active measurement
reading on the “1 POINT SAMPLE: CONFIRM
ACTIVE?” output status screen. When the reading cor-
responds to the actual typical process value, press
ENTER key
again to return the analog outputs and re-
lays to their active states (MEASURE screen appears).
This completes ORP calibration.
The analyzer analog outputs are factory-calibrated. How-
ever, they can be re-calibrated at any time if desired.
These
instructions calibrate Output 1. Calibrate Output 2 in the
same way using its respective menu screens.
NOTE:
When the passcode feature is enabled (Section
4.6), you must successfully enter the passcode
before attempting to calibrate the analog outputs.
When an output is configured to be 0-20 mA, the
analyzer will calibrate the 4 mA and 20 mA values
(not the 0 mA value). Also, the analyzer adjustment
range for output values during calibration is ± 2 mA.
1.
Press
MENU key
to display
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.
2.
With the “CALIBRATE” line selected, press
ENTER key
to display
.
