18 | Installation
Orion 8010cX Ammonia Analyzer
Alarm Signal Wiring
The instrument provides two relays, J4 and J5, without
voltage contacts through the measurement interface drive
panel (see
). Two contacts: normally open (NO),
normally closed (NC) and common terminal (COM). The
maximum rated capacity of relay contacts is 240 V, 2 A. The
maximum acceptable cable size for the wiring terminals is
14AWG.
describes J4 and J5 wiring terminals and
corresponding functions.
Digital Signal Input Wiring
Two digital input interfaces on the measurement interface
drive board are used for the external trigger control. Pin 1 and
pin 2 of J1 and J2 are inputs. Either external power input or
internal power of the instrument can be used. If external
power input is used, the external power supply shall be
5~24 V DC. If the internal power of the instrument is used,
pin 3 and pin 4 of J1 and J2 provide a 24 V DC power supply.
Refer to
for specific digital power access. Refer to
for digital signal input wiring.
Figure 16. Digital Power Access
Table 5. J23 and J24 Wiring Terminals
Connector
Terminal
No.
Name Description
J23
1
AO+
2# analog (max. load of 900 ohm)
2
AO-
2# analog output-
J24
1
AO+
1# analog (max. load of 900 ohm)
2
AO-
1# analog output-
Table 6. J4 and J5 Wiring Terminals
Connector
Terminal No.
Name
Description
J24
1
NC
2# Relay NC Contact
2
COM
2# Relay COM
3
NO
2# Relay NO Contact
J25
1
NC
1# Relay NC Contact
2
COM
1# Relay COM
3
NO
1# Relay NO Contact
a.Use an internal 24 V
DC power supply
b.Use an external power supply
