GasSecure GS01
Hardware Manual
24
C
HAPTER
5
•
are designed for battery cell replacement. They will contain the label
depicted in Figure 5-1. Battery packs without this label may not be opened.
•
are clean and free of contamination.
•
are visually intact (particularly no damage around the screw holes).
•
have no visible corrosion on the terminal contacts.
Use only the following approved battery cells in the battery pack:
•
Tadiran model no. SL-2780/S
•
Tadiran model no. TL-5930/S
Battery cell replacement and opening the battery pack must take place in a safe
area, where a potential explosive atmosphere is not present.
Figure 5-1: Battery pack warning label
Replacement:
•
Loosen the two battery pack mounting screws (Torx T10), see Figure 5-2.
Note that the spring force is high, have therefore a firm grip around the
pack while unscrewing.
•
Remove both used cells and dispose according to the battery cell safety
datasheet (see Section 5.4.3 for more information). Do not disassemble the
battery pack any further.
•
Verify that new cells are of the correct type (see above). Be sure to replace
both battery cells at the same time and only use fresh (previously unused)
cells.
•
Place both battery cells in the battery pack, leaf contact facing the positive
(+) terminal and spring contact facing the negative (-) terminal, cf. Figure 5-
3.
•
Assemble lid and bottom of the pack by tightening the two screws (Torx
T10) with a torque of approximately 0.7 Nm. Have a firm grip around the
pack until the screws are tight.
•
Press the button on the pack, see Figure 5-2 (the button is located behind a
hole in the pack and accessible with the tip of a pen). This will indicate to
the gas detector that fresh batteries are in place and re-set the charge
counter. Note that only gas detectors with firmware 3.0 or later will
recognize this button operation. Please contact GasSecure should the
detector in question contain an older firmware version or should you be
uncertain about the firmware of this detector.