RKI Instruments Digester Gas Monitor - Manual (Page 46)

40 • Alarm Indications Digester Gas Monitor Operator’s Manual
NOTE: The Digester Gas Monitor’s alarms are factory set in such a way that it is unlikely
that an alarm condition will be encountered but the Digester Gas Monitor allows
the configuration of various alarm and alarm relay parameters. The description of
alarm indications below assumes that all parameters are at their factory set
values. It also assumes that the alarm setpoints are set such that alarm 1< alarm
2 < alarm 3 and all alarms are increasing.
See “Viewing and Changing Channel Parameters” on page 51 for detailed
information on displaying or changing various channel parameters including
alarm and alarm relay parameters. Table 8 on page 53 lists the adjustable
parameters and their factory settings.
NOTE: The Digester Gas Monitor’s oxygen alarms are factory set as increasing.
Table 6: Visual and Audible Alarm Indications
Condition Cause Visual Indication(s) Audible Indication
Alarm 1 Increasing gas reading at
or above the alarm 1
setpoint • Alarm 1 LED is on
• Gas reading alternates with
ALARM-1 message
• If installed and set to activate
for alarm 1, horn/strobe flashes
NOTE: The oxygen channel has a
30 second alarm delay built in for
Alarm 1. Any indications related to
the oxygen channel will not initiate
until 30 seconds has passed since
the Alarm 1 condition occurred.
• Buzzer sounds a
pulsing tone
• If installed and set to
activate for an alarm
1 condition, the
horn/strobe sounds
a pulsing tone
Alarm 2 Increasing gas reading at
or above the alarm 2
setpoint • Alarm 1 and alarm 2 LEDs are
on
• Gas reading alternates with
ALM 1,2 message
• If installed, horn/strobe
continues to flash if set to
activate for alarm 1. If set to
activate for alarm 2 only, it
begins to flash when an alarm
2 condition begins.
• Buzzer sounds a
pulsing tone
• If installed, the horn/
strobe continues to
sound a pulsing tone
if set to activate for
alarm 1. If set to
activate for alarm 2
only, it begins to
sound a pulsing tone
when an alarm 2
condition begins.
Alarm 3 Increasing gas reading at
or above the alarm 3
setpoint • Alarm 1, alarm 2, and alarm 3
LEDs are on
• Gas reading alternates with
ALM 1,2,3 message
• If installed, horn/strobe
continues to flash if set to
activate for alarm 1 and/or
alarm 2. If set to activate for
alarm 3 only, it begins to flash
when an alarm 3 condition
begins.
• Buzzer sounds a
pulsing tone
• If installed, the horn/
strobe continues to
sound a pulsing tone
if set to activate for
alarm 1 and/or alarm
2. If set to activate
for alarm 3 only, it
begins to sound a
pulsing tone when
an alarm 3 condition
begins.