Honeywell Apex Technical Handbook page 100

Gas detection system
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MAN0604_Issue 09_02-2013
2110M8030
APPENDIX A - SPECIFICATIONS
Default settings
Default coil state
Default latch state
Default terminal
Digital I/O standards:
Display:
Display language:
Keypad/user I/O:
4-20mA output:
Fault:
Inhibit:
Warning:
Over Range:
Terminal sizes:
A1
de-energised
non-latching
normally open
Optional. LonWorks
LCD.
Information displayed:
gas reading, state (OK, fault, inhibit, warning, A1, A2, Overrange),
fault/warning codes,
Certified Sensor type and diagnostic data.
Default language: English.
The user can select German.
Four keys (escape, up, down, ok) for calibration, configuration, relay
de-latching, display of status information, acceptance of new Certified
Sensor types, basic testing of output functions (digital bus test,
4-20mA test).
3-wire sink or source, 4-wire, isolated. Range 0-22mA. Zero point
adjustable in the range 4mA ± 0.5mA (default 4mA). Upper current
limited to 22mA. Loop resistance 0-300 ohms (with a 24V loop supply).
0mA nominal (0-0.5mA)
1mA default (user configurable 1-4mA)
User selectable. Either a fixed level (3mA default, user configurable
between 1-4mA), a pulsed current or disabled.
When the unit is in the warning state a gas reading can still be
calculated.
If the value of this increases beyond 50% of the first alarm level the
4-20mA output reverts to indicating the gas reading.
If subsequently the reading decreases below 25% of the first alarm
level the 4-20mA reverts to indicating the warning state.
21mA
Caution: When compliance with the ATEX performance standard is
required the warning and inhibit current shall not be
configured to a value between than 3.1mA and 4.9mA.
Note: For Oxygen sensors, the output is arranged so that 4mA
corresponds to 0% V/V, and 20mA corresponds to 25% V/V.
The overrange state can be configured as either latching or
non-latching. The default is non-latching.
Field wiring terminals accept 2.5mm
A2
de-energised
non-latching
normally open
conductors.
2
100
Fault
energised
non-latching
normally open
Apex

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