REGARD 8-Input 4-20 Module & 8-Channel Display Card (ATEX Version)
Issue 2. October 2011
8
Display card front panel controls and indicators
Display
Display normally shows gas level of each head in sequence. When an alarm occurs,
display shows gas level of head(s) in alarm only.
Display Meaning
h1:0
Gas level for head 1 (gas level is 0)
h8:3
Gas level for head 8 (gas level is 3)
36:12
Alternative display of gas level, showing Regard channel
number instead of head number.
(E.g. gas level of channel 36 is 12.)
h1:FSD
(‘FSD’ blinking) indicates that head 1 is over-range, i.e. the
gas level exceeds the current FSD setting. See also
Set
over-range latch
on page 28.
12:HCAL
Indicates that the head on channel 12 is in calibration mode
FAULT..
Operational fault
LEDs
LED State
Meaning
A3
No function
A2, A1, Fault
Off
Flashing
On
No alarm
Alarm tripped, not acknowledged
Alarm tripped & acknowledged
Power
On
Flashing
DC power on
Operational fault
Inhibit
On
Blinking on (normally
off, on every 2.5 s)
Blinking off (normally
on, off every 2.5 s)
Relays inhibited
Relay(s) disabled
Relays inh relays disabled
Push buttons
Function of front panel controls during normal operation:
Push button
Function
Display gas name. E.g.
h1:CO2
Display gas units. E.g.
h2:PPM
SHIFT +
Display A1 trip level.
Arrow after number indicates rising ( ) or falling ( ) alarm
E.g.
h3:20
SHIFT +
Display A2 trip level. E.g.
h3:40
Display next head (channel).
Display previous head (channel).
+
Hold / release current channel.
(Press both push buttons at same time.)
R
Acknowledge / reset alarm
