Page 22 of 42 pages
2.1.3 LEVELTRONIC “classic” A40 / LEVELMETER 25 (blue cover)
The LEVELTRONIC „classic“ can only be used in connection with a
LEVELMETER 25 (blue cover) , Only one measuring range is
available.
LEVELTRONIC „classic“ A40
2.1.4 LEVELMETER 25
Switch (Backside)
"On" / "Off"
Switch for LEVELMETER. The low battery indication
(XX:XX colon) is appearing automatically during operation
if battery power is insufficient.
Top view
LEVELMETER 25
Potentiometer:
"ZERO" (1)
Enables adjustment of the zero point. The regulating
range is min. +/- 400 digits.
Socket A (2)
Input for measuring with one
LEVELTRONIC „classic“
Socket -B (3)
Input for the reference level in differential mode. In order
to prevent interference voltage to channel A , input B is
switched off when no instrument is connected.
Socket:
"POWER/OUT (4)
Analogue output 1 mV per digit.
External power supply input.
Important:
All batteries must be removed from the
LEVELMETER 25 when external powered (e.g.
with Leveladapter 2000)!!
Battery change / Battery check LEVELMETER 25
In case low battery indication (XX:XX colon) is appearing the batteries have to be exchanged.
For exchanging batteries press the cam in arrow's direction as shown in Fig. 4 (use screwdriver) and remove
the cover. Take out batteries by shaking the LEVELMETER C25 and check all contacts for corrosion. Install
new leak proof batteries with a voltage of 1,5V in the battery case as shown on the diagram (see Fig. 5)
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