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CO
xxx ppm
Temp
24.5
°
C
NO2
xx.x ppm
CO xxx
24.5
°
C
CO xxx
NO2 xx.x
NO2 xx.x
76.1
°
F
CO
Detector
NO2
Detector
NOTE:
• The sensor readings are compared to pre-set setpoints for alarms and if they are exceeded the device
enters Alarm Mode
• The 2 alarms are always present with network devices
• The alarms are only present on analog devices if the relays are also included
• There is no alarm associated with the temperature value
• Alarm1 is always tied to Relay1 (if present) and Alarm2 is always tied to Relay2 (if present)
• Alarm1 and Alarm2 may be freely assigned to CO or NO
2
• The alarm resets back to Normal Mode which can be configured via the menu as either Automatic
reset or Manual Reset
• When an alarm condition occurs, the alarm status will be displayed alternately with the normal
display. If more than one alarm occurs, then they will alternate every 2 seconds with the normal
display. This includes all active alarm conditions
OPERATION - ALARMS
Start Up
Normal
TEST
MODE
Comm
failure
with CO
Sensor
POD
Comm
failure
with NO
2
Sensor
POD
CO ppm
> Buzzer
Setpoint
NO
2
ppm
> Buzzer
Setpoint
ppm >
Strobe
Setpoint
ppm >
Alarm 1
Setpoint
Status LED Flashing
GREEN
GREEN
Flashing
RED
Flash RED
every 10
minutes
Flash RED
every 10
minutes
Flashing
RED
Flashing
RED
Flashing
RED
Flashing
RED
Strobe
LED
OFF
OFF
Flashing
-
-
-
-
Flashing
-
Alarm LED OFF
OFF
RED
-
-
-
-
-
RED
Buzzer
OFF
OFF
Beep
Every 15
seconds
Short
every 10
minutes
Short
every 10
minutes
ON-Short
ON-Long
-
-
CO
xxx ppm
Alarm1
CO xxx
Alarm2
NO2 xx.x
CO
xxx ppm
• When a buzzer alarm condition occurs, the buzzer alarm status will be displayed alternately with
the normal display. If more than one alarm occurs, then they will alternate every 2 seconds with the
normal display. This includes all active alarm conditions.
The temperature sensor can be ordered as a feed through with different sensor options, or as a
transmitter. When configured as a transmitter output signal is scaled 4-20 mA or 0-5/0-10 Vdc or network
variable depending on the device model. The temperature range may be changed to -20-50 °C (-4-122°F)
or to 0-50°C (32-122°F) via the Setup Menu.
If the model also includes a NO
2
sensor, then the output signal is scaled 0-10 ppm = 4-20 mA or 0-5/0-10
Vdc or as a network variable.
The sensor readings are also displayed on the LCD depending on the device model and can also be
configured with the Setup Menu. There are several configurations on how information is displayed, see
the Menu section for full details. Example displays are shown below.
• For a CO buzzer alarm, the sound is a short beep
• For an NO
2
buzzer alarm, the sound is a long beep
CO
xxx ppm
Buzzer
CO xxx
Buzzer
NO2 xx.x
CO
xxx ppm
CO / NO2
Detector
IN-GE-GDTXXX-06
Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com
