TELEDYNE OLDHAM SIMTRONICS Everywhereyoulook BM 25A, Руководство пользователя

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BM 25A/AW
AREA GAS MONITOR
USER MANUAL
10 NPB25AEN
Revision D.0
Figure 10: charging in safe area
2.2.2 Trickle charge kit
An intrinsically safe power supply (Figure 11: trickle charger connection provides power to the monitor while
it is located in hazardous area through a dedicated connector on the left side (Figure 2
Figure 2, ref. 5). In this configuration, the internal battery is charged very slowly. The current
supplied by the trickle charger is mostly used to power the electrical circuits.
2.2.3 Intrinsically safe power supply (trickle charger) features:
•
Io ≤ 160 mA.
•
Pmax= 1.2 W.
•
Maximum cable resistance = 16 ohm, based on a maximum cable length of 500 meters
(AWG 16 – 1,5mm²).
Trickle chargers are available with 25, 50 or 100 meters of cable. The dual charging kits are
intended for use with BM 25A/AW monitors equipped with two high current draw sensors
(catalytic, infrared, PID) or when the pump is continuously running. Only intrinsically safe power
supplies provided by TELEDYNE OLDHAM SIMTRONICS can be used.
Insert the male connector (Figure 11, ref. 6) from the trickle charger (ref. 1 and 3) into the port
with a black ring that is located on the left side of the BM 25A/AW (ref. 4). Connect the other
end of the power supply (ref. 2) to the mains and only in areas known to be safe.
The trickle charge connector (Figure 11, ref. 1) must be located in a non-hazardous
location. The BM 25A/AW can be used in hazardous area while trickle charging.