Oldham BM25, Руководство по эксплуатации

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7.4. Alarm transfer
The BM25 has two “static” relays: one “gas alarm” relay common (in closing) for all channels and
one “failure” relay common (in opening) for all channels. The alarm relay is configured through
COM2100.
The BM25 is also equipped with two logic inputs (TOR):
- 1 input dedicated to remote acknowledgment
- 1 input dedicated to alarm triggering
These inputs are also configured through COM 2100.
Connections: see Chapter III, 2.5.
Several gas detectors can be connected to each other in order to transfer an alarm from one gas
detector to another or to manually trigger an alarm.
IMPORTANT: Imperative parameters for relay outputs
AC I Max 150 mA - V max 30V
DC I Max 150 mA - V max 30 V
Caution: If the BM25 gas detector is used in a explosive atmosphere, it is imperative to consider
output parameters, since contact must not impair the intrinsic safety of the gas detector. These
parame ters are mentioned in the Special Instructions section for use in ATEX areas.
INDUSTRIAL SCIENTIFIC- shall not, in any event, be liable for failure to follow regulations.
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8
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. MEASUREMENTS
2 relay outputs (default and gas) and 2 logic inputs
(remote acknowledged and alarm transfer)