Section 8 calibration, 1 calibration – Hach-Lange SI792 C, SI792x C, SI792x C-FF, SI792x C-PA User Manual User Manual
Page 69

67
Section 8
Calibration
8.1 Calibration
Important Note: Stabilize the temperature during calibration.
Note: Only qualified personnel should conduct the tasks described in
this section of the manual.
The transmitter is adjusted to the sensor through the calibration. Use
the following methods and passcodes for calibration as described in
.
During calibration the transmitter remains in the Hold mode for safety
reasons. The loop current is frozen at the value specified in the
o1.HoLD menu option. The Sensoface icon is inactive. The calibration
mode indicator is displayed (
To exit the calibration mode at any time, press
CAL
and then
ENTER
.
The output current will be held for 20 seconds and the measured value
will be displayed.
Table 14 Methods and passcodes for calibration
Method
Passcode
Display zero/slope
0000
Enter cell constant
1100
1
1
For si792(x) C only.
Calibration with a known calibration solution
0110
2
2
Not available with si792x C-PA.
Calibration by product comparison/grab sample
1105
2
Temperature sensor calibration
1015
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