Calibration Instructions - Pentair HAFFMANS c-DGM Instruction Manual

7.2.1 Calibration instructions

To calibrate the pressure sensor, proceed as follows.
You can accept the value with the "Enter" button and change the value with the Up and Down
arrow buttons.
Make sure you have selected the correct units!
In order to perform the calibration correctly and accurately, you must know the local
atmospheric pressure. Read this from an accurate barometer (± 5 mbar) or ask your local
meteorological service.
Table Tab. 7.1 Conversion of the atmospheric
Method:
1. Press the "Enter" button for at least 3 seconds.
The input menu is shown.
2. Press "Enter" again.
The main menu is displayed.
3. Use the Down arrow button to select the "Calibration"
Down and press the "Enter" button.
4. Select "Calibration pressure" and press the "Enter" button.
You are now in calibration mode and the
cursor is on the parameter "P-Atm".
Page 44 of 78
Atmospheric pressure table
[mmHg] [bar]
780 1.04
773 1.03
765 1.02
758 1.01
750 1.00
743 0.99
735 0.98
728 0.97
713 0.95
675 0.90
638 0.85
600 0.80
2
[kPa] [kg/cm ]
104 1.06
103 1.05
102 1.04
101 1.03
100 1.02
99 1.01
98 1.00
97 0.99
95 0.97
90 0.92
85 0.87
80 0.82
pressure
, &&D E^ 'D 'D
[psi]
15.1
14.9
14.8
14.6
14.5
14.4
14.2
14.1
13.8
13.1
12.3
11.6
HAFFMANS BV
V02.04 SER.NO. : 10000
Calibration pressure
: xx.xx bar
P-Atm
P-Low : 0.0 bar
P-high : xx.x bar
c-DGM/i-DGM