JUMO 902930 Wtrans Transmitter RTD Temperature Probe with Wireless Data Transmission Operating Manual - Manual (Page 20)

3 Probe preparation
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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.