Pentair HAFFMANS c-DGM Instruction Manual page 45

5. Retract the plunger (sampling position).
Press the "Enter" button once to
enter the atmospheric pressure.
The cursor jumps to the value after
parameter "P-Atm".
You can accept the value with the "Enter" button and
change the value with the Up and Down arrow
buttons.
When all the values have been set, press the "Enter"
button again : the value is now accepted and parameter
"P-Low" is automatically selected.
P-Low is always:
- 0.00 bar,
- 0.0 psi, or
2
- 0,0 kg/cm .
6. Press
"Enter" twice: "P-Low" is entered again and parameter
"P-High"
is automatically selected. Press the "Enter" button once
more to set P-High.
7. Close the leaver (measuring position).
8. Connect a precision pressure source between:
- 1 and 10 barg,
- 14.50 and 145.04 psi, or
- 1.02 and 10.20 kg/cm
9. Now enter the pressure of the connected pressure source in the DGM and press the
"Enter" button. If the calibration completes successfully, the DGM software program will
return to the main menu, otherwise you will receive the message:
"Questionable calibration, old calibration restored"
10. Reduce the calibration pressure slowly to atmospheric pressure by using the pressure
reducer on the pressure precision pressure source.
11. Disconnect the calibration device, remove the calibration screw from the measurement
chamber and replace it with the standard screw pos. 03.
c-DGM/i-DGM
2
.
, &&D E^ 'D 'D
Calibration pressure
P-Atm : xx.xx bar
P-Low : 0.0 bar
P-high : xx.x bar
Calibration pressure
P-Atm : xx.xx bar
: 0.0 bar
P-Low
P-Low : xx.x bar
Calibration pressure
P-Atm : xx.xx bar
P-Low : 0.0 bar
P-Low : xx.x bar
Page 45 of 78