Honeywell 5704 Operating Instructions Manual page 51

MAN0448_Issue 13_2010
005704-M-5001 A03249
CHAPTER 3 CONTROlS AND FACIlITIES
The default mode of operation is a rising solid bar current gas reading
display with a peak reading facility, and with a combination of automatic
sequencing between channels and highest reading.
2.2.3 Digital Display
The digital display is a four character, seven segment display which
provides either an indication of the sensor gas reading or a value relating
to a function selected from the Engineering Card.
Depending on the sensor range and the configuration setting, the digital
display shows a gas value to either no decimal place (the default setting)
or to one or two decimal place.
2.2.4 Message Display
The message display consists of a four character, 14 segment display
which provides intelligent reporting of the sensor status or information
on a selected engineering function. Fot control cards fitted with the
high integrity relay outputs performing master, zone or voted alarms
the alarm state will also be indicated as follows:
BEAM -
MSTR -
ZONE -
VOTE -
In the case of an update alarm, the cause of the alarm is indicated
as follows:
-FT-
-IN-
-A1-
-A2-
-A3-
-ST-
-LT
2.2.5 Icon
The icon provides a simple indication that the display is functioning
and changes when the channel card is selected for operation with the
Engineering Card.
Normal Operation
Beamed Block Alarm
Master Alarm
Zoned Alarm
Voted Alarm
- Fault Alarm
- Inhibit Alarm
- A1 Alarm
- A2 Alarm
- A3 Alarm
- STEL Alarm
- LTEL Alarm
3-10
5704 Control System
Selected