Betriebsanleitung/Operating manual
E3905 / P3394
BD_BE 763 b
27
2
Operation and maintenance advice
2.1
Operation with battery or accumulator
If
!
and ´bAt´ are shown in the secondary display the battery has been used up and needs to be
replaced, or resp. the accumulator is empty and has to be recharged. The device will, however,
operate correctly for a certain amount of time. If ´bAt´ is shown in the upper display the voltage is
too low to operate the device; the battery or accumulator has been completely used up.
Please note: We recommend to take out battery / accumulator if device is not used for a longer
period of time!
2.2
Mains operation with power supply
Warning: When using a power supply please note that operating voltage has to be
10.5 to 12 V DC.
Do not apply overvoltage! Cheap 12V-power supplies often have excessive
no-load voltage.
We, therefore, recommend using regulated voltage power supplies.
Trouble-free operation is guaranteed by our power supply unit.
Prior to connecting the power supply to the mains make sure that the operating voltage stated at
the power supply is identical to the mains voltage.
2.3
Connecting / changing sensors
Do not use insuitable sensors. Connecting other devices / sensors as specificated may
cause a damage to the instrument and device / sensor!
Switch off device before changing the sensor.
Connect sensor before switching on the device, otherwise the sensor may not be detected
correctly. When connecting the sensor the connector may not lock correctly. In such case take the
plug not at the casing but at the buckling protection at the end of the plug. If plug is entered
correctly, it will slide in smoothly. To disconnect sensor do not pull at the cable but at the plug (to
open locking mechanism).
Notices: At the back of the sensor housing, of gauge sensors, is the hole for the
pressure compensation, which have to stay free.
