3 probe preparation – JUMO 902930 Wtrans Transmitter RTD Temperature Probe with Wireless Data Transmission Operating Manual User Manual
Page 20

3 Probe preparation
20
As standard, power supply of the probe is provided by a lithium battery 3.6 V, 2.2 Ah (1.7 Ah)
to be inserted prior to commissioning/start-up.
Battery service life depends on the set transmission interval and the ambient temperature and
is approx. 1 year with the factory-set values and at room temperature.
Figure 3:
Fitting/exchanging the battery
Step
Activity
1
Screw open the handle in the counter-clockwise direction
and pull off one half of the handle.
2
Pull the PCB out of the handle by approx. 25 mm.
Never damage or remove the blue safety cable.
3
Undo the screw terminals of the minus and plus pole using a screwdriver,
remove the battery, if empty.
4
Insert the plus pole of the new battery into the (+) screw terminal.
Swivel the battery and insert the minus pole into the (-) screw terminal.
5
Tighten the screw terminals of the minus and plus pole using a screwdriver.
6
Slide the PCB back into the handle up to the stop.
7
Hold the handle vertically (as shown in the figure) and turn the handle and the handle sec-
tion clockwise to fasten tightly.
Ensure the correct seating of the two seals 7.1 and 7.2 on the handle sections.
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