9
9
ALRM INPUT (Alarm Input): This allows you to remotely activate the
Test/Reset or Emergency Purge functions via a contact closure or wire
an external alarm/event into the monitor. The external alarm function
may be wired to use open or closed contacts. When wired for “open”
contacts, opening the contacts will activate the monitor’s alarm; when
wired for “closed” contacts, closing the contacts will activate the
monitor’s alarm. The connection should be made through a switch to
the INPUT COM terminal. See Configuration Parameter P08.
INPUT COM (Input Common): This is the ground used for the DIS
INPUT and ALRM INPUT connections.
RELAY 1 (Relay 1): This relay has contacts that are open in the non-
energized state. It can be configured to close for alarm, caution, or
emergency purge or open for alarm, caution, emergency purge, or loss
of power. See Configuration Parameter P09.
RELAY 2 (Relay 2): This relay has contacts that are closed in the non-
energized state. It can be configured to open for alarm, caution, or
emergency purge or close for alarm, caution, emergency purge, or loss
of power. See Configuration Parameter P10.
2.1mm barrel jack
Use a 9 to 30 V AC/DC
200mA Max. Class 2 power supply
Use 14 - 24 AWG wire
TERMINAL
BLOCK
J1
1
2
POWER
JACK
J3
3
4
5
6
7
5V DC
1
2
DIS INPUT
1
2
Installation Wiring Diagram
Recommended
ALRM INPUT
External
Ratings:
Switch
@0.5mA Max.
0.5A @25V AC
1A @30V DC
Internal
Relays 1 & 2 are rated for:
INPUT
CO
MMO
N
RE
L
A
Y
1
CO
NNE
CTIO
NS
(NO
)
RE
L
A
Y
2
CO
NNE
CTIO
NS
(NC)
This diagram is provided to illustrate the field connections.
Figure 3 – Field Wiring Diagram
