User guide

19 • Alarm Indications Beacon 800 Gas Monitor Operator’s Manual

Alarm 1 Condition

This section describes the audible and visual indications for an alarm 1 condition and

suggests responses to an alarm 1 condition.

Alarm 1 Condition Indications

When the gas reading of an active channel reaches the alarm 1 setpoint, the Beacon 800

senses an alarm 1 condition. The Beacon 800 alerts you to an alarm 1 condition as

follows:

• the ALARM 1 light turns on;

• the gas reading in alarm 1 condition flashes and alternates with the ALARM-1

message;

• the buzzer sounds a steady tone;

• the common alarm 1 relay energizes;

• the applicable alarm 1 channel relay energizes.

Responding to an Alarm 1 Condition

This section suggests the following responses to an alarm 1 condition:

1. Follow your established procedure for a low-level combustible or toxic gas condition or

a decreasing oxygen condition.

2. Oxygen alarms are factory set as self-resetting and will automatically clear when the

oxygen reading rises above the alarm 1 setpoint.

3. Alarms for all other gas types are factory set as latching. After the gas reading falls

below (rises above for oxygen) the alarm 1 setpoint, press the reset switch to reset the

alarm 1 circuit. Resetting the alarm 1 circuit silences the buzzer, turns off the ALARM

1 light, resets the channel display, and de-energizes the common and channel alarm 1

relays.

NOTE: To silence the buzzer while in an alarm 1 condition, press the reset switch.

You cannot de-energize the alarm 1 relays until the gas reading falls below (rises

above for oxygen) the alarm 1 setpoint.

Alarm 2 Condition

This section describes the audible and visual indications for an alarm 2 condition and

suggests responses to an alarm 2 condition.

Alarm 2 Condition Indications

When the gas reading of an active channel reaches the alarm 2 setpoint, the Beacon 800

senses an alarm 2 condition. The Beacon 800 alerts you to an alarm 2 condition as

follows:

• the ALARM 2 light turns on;

• the gas reading during an alarm 2 condition continues to flash and alternates with the

ALARM-1 and ALARM-2 messages;

• the buzzer sounds a steady tone;

• the common alarm 2 relay energizes;

• the applicable alarm 2 channel relay energizes.