RKI Instruments Beacon 410 User Manual

Page 38

34 • Viewing and Changing Global Parameters

Beacon 410 Gas Monitor Operator’s Manual

NORMAL RELAY STATES
(NORM DE-ENERGIZED)

If set to NORM DE-ENERGIZED, the gas alarm relays are
de-energized in normal operation and energize when the
appropriate alarm circuit is activated. The NO (normally
open) relay contacts are open during non-alarm operation
and close when the appropriate alarm condition occurs.
The NC (normally closed) relay contacts are closed during
non-alarm operation and open when the appropriate alarm
condition occurs.
If set to NORMALLY ENERGIZED, the gas alarm relays
are energized in normal operation and de-energize when
the appropriate alarm circuit is activated. The NO (normally
open) relay contacts are closed during non-alarm operation
and open when the appropriate alarm condition occurs. The
NC (normally closed) relay contacts are open during non-
alarm operation and close when the appropriate alarm
condition occurs.

NOTE: The fail relay is factory set as normally energized
and is not field adjustable.

RELAYS ABCD used as
(COMMON ALARM
RELAYS)

If set to COMMON ALARM RELAYS, relays A, B, C, and D
are defined as common alarms assigned to the gas alarms
as follows:
Relay A: Common Alarm 1
Relay B: Common Alarm 2
Relay C: Common Alarm 3
Relay D: Common Any alarm
If set to CHANNEL ALARM RELAYS, relays A, B, C, and D
are defined as configurable channel alarm relays assigned
to the detection channels as follows:
Relay A: Channel 1
Relay B: Channel 2
Relay C: Channel 3
Relay D: Channel 4
Each relay is factory assigned to alarm 3, but this can be
changed in the Configuration Menu.

BUZZER SILENCE
(CAN SILENCE BUZZER)

If set to CAN SILENCE BUZZER, the buzzer can by
silenced by pressing and releasing the reset switch when
the Beacon 410 is in a gas alarm condition.
If set to CAN”T SILENCE BUZZEZR, the buzzer cannot be
silenced by the reset switch while the Beacon 410 is in a
gas alarm condition.

Table 6: Global Menu Parameters (Continued)

Global Parameter

(Factory-Set Value)

Description