Ampcontrol gasguard, Installation, Operation & Maintenance Manual

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GASGUARD IS CONTROLLER Issue: R2, Date: 26/09/2011, CRN: 7502
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Specifications
Voltage:
10 to 16.5 VDC (Nominal 12 V IS Supply)
Input Channels:
Four channels
4/20 mA or 0.4 – 2 V (Set during manufacture)
For 4-20mA input type, input resistance is 100 Ohms between channel input and channel -.
Relay Outputs:
Four IS Relay Outputs – Can be configured:-
Normally Energised (NE)
Normally De-energised (ND)
Latched (L) / Non-Latched (NL).
Contacts:
1 C/O. Rated at 2 A, 30 Vdc (Resistive).
Relay contacts are considered as isolated intrinsically safe circuits. See certificate of conformance for details.
Repeat outputs:
Three 4/20 mA programmable outputs. (Applies to both 4-20mA and 0.4-2.0V input controller types).
Maximum 300 Ohm load with 12V dc supply. See performance graph in Appendix A (A6).
Set-points:
3 programmable set-points per channel, Hysteresis adjustable 0-20% of channel scale
2 programmable fault set-points per channel . No hysteresis.
Alarm Reset:
Volt-Free switch or relay contact input.
Front panel left key (press and hold). Selectable in configuration settings to be enabled or disabled.
Communications:
RS485 Modbus RTU - Slave only.
LED Indication:
There are seven (7) Status LED’s located on the facia
Power LED - (Red)
Alarm LED – (Red)
Fault LED – (Red)
Four Relay state Indication LED’s – (Red).
Dimensions (mm):
Overall: 75H x 100W x 110D