2 temperature sensor adjustment, Calibration – Hach-Lange SI792 C, SI792x C, SI792x C-FF, SI792x C-PA User Manual User Manual
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Calibration
70
3. Measure the grab sample with a laboratory or portable meter.
4. Press
CAL
, enter passcode: 1105,
ENTER
to access the product
calibration once more. The display will briefly show CAL PRD and
then CALC.
5. Edit the displayed value to match the value measured by the
laboratory or portable meter and press
ENTER
. The newly
calculated cell constant will be displayed.
6. Press
ENTER
to end the calibration. The display will show the
measured value alternating with Hold.
Press
ENTER
to return to the measuring mode. The outputs will remain
in the hold mode for approximately 20 seconds.
Note: For comparison calibration via Foundation Fieldbus, see
Note: The si792x C-PA transmitter cannot be calibrated by this method.
8.2 Temperature sensor adjustment
1. Press
CAL
, enter passcode: 1015,
ENTER
. CAL TMP will be
displayed for 3 seconds. The transmitter is ready for calibration.
2. Measure the process temperature with a thermometer.
3. Use the
UP ARROW
and
RIGHT ARROW
to enter the value of the
measured temperature from the external thermometer.
4. Press
ENTER
to save the value.
5. The transmitter remains in HoLD mode
.
Press
ENTER
again.
The transmitter remains in HoLD mode for approximately
20 seconds after calibration and returns to the measure mode.
Note: Repeat the calibration when “Err” is displayed.