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2
2
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CHARGING THE BATTERY
Battery charge time is 4 hours and a half.
3
3
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TRICKLE CHARGE
The BM25 is supplied with a connector for trickle charge (right next to the charger
connector). By means of one or two intrinsic safety power supply, the battery’s charge can be
maintained (except in alarm conditions) while leaving the BM25 in use in a classified area.
Technical characteristics of the IS power supply for trickle charge:
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Io
≤
160mA
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Pmax= 1.2W
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Maximum resistance of cable=16 ohms
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This means a max. cable length of 500 m to 1.5 mm²
Trickle charge cables with lengths of 25 m, 50 m or 100 m are single or double depending on
whether the BM25 is equipped with both explosive and infrared sensors.
CAUTION
: ATEX applications – Refer to Section III, Clause 2. Only power supply, p/n
6111303, provided by INDUSTRIAL SCIENTIFIC- can be used.
a) For connection to single trickle charge supply, use BLUE
INSTRUMENTATION CABLE TYPE 01 IP 09 EGSF.
b) For connection to dual trickle charge supplies, use BLUE
INSTRUMENTATION CABLE TYPE 03 IP 05 EISF.
CAUTION:
CSA applications – Refer to Section III, Clause 3. The trickle charge connector is for
connection to CSA Certified Associated Apparatus with entity parameters that
satisfy the conditions of Note 4 in the control drawing (Figure 2).
a) For connection to single trickle charge supply, use cable assembly p/n
6315866, 6315867, or 6315868 and mating connector, p/n 6153064.
b) For connection to dual trickle charge supplies, use cable assembly p/n
6315869, 6315870, or 6315871, and mating connector, p/n 6153064. Cable
shields must be connected to ground at the supply end.
Trickle charge connector