Mounting and commissioning
4.
A transparent tube can be seen at the cable end of the pressure
sensor. This tube provides the pressure sensor with atmos-
pheric pressure. Make sure not to close or bend this tube in or-
der to avoid incorrect measurements.
The junction box must be closed in such a way that it is water-
tight but not completely airtight.
6.5
Connecting the battery
1.
After you have electrically connected the pressure sensor and
the digital unit, open the housing of the digital unit by turning the
upper part of the housing all the way to the stop and pulling it
up.
5.
Press the miniature button (1) and keep holding it down. Plug
the 2-pole battery plug into the 2-pole socket (2) on the printed
circuit board.
Miniature
button
1
2-pole socket
2
Fig. 4: Printed circuit board
WARNING
Danger of explosion in case of short circuit of the lithium bat-
tery.
Do not short-circuit the lithium battery.
6.
Release the miniature button.
6.6
Zero balancing
1.
Close the housing of the digital unit by pushing the two housing
parts together.
Since the battery was connected, the digital unit was switched on.
The display switches between "Zero" and the current offset of the
pressure sensor (indication in hPa = mbar). The top left corner of the
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DIT 01