
MX4428 MXP Engineering / Technical Manual
Document: LT0273
Device Information and Programming
Page 3-24
24 March 2006
Issue 1.5
The remaining parameters should not need changing.
Parameter Description
Default
Value Enhance
CO
sensitivity with heat
Rate of Rise
Heat Type
A – rate of rise enabled
B – rate of rise disabled
0 Yes
A
1 Yes
B
2 No
A
3 No
B
6
Yes
No heat alarm
Mode
7
No
No heat alarm
2
P0
CO Pre Alarm Threshold
80
CO Alarm Threshold
Value Threshold
60 23ppm
93 38ppm
(default)
P1
160 66ppm
(alternate)
93
P2
Heat fixed temperature pre-alarm threshold
°
C 56
(
°
C)
Heat fixed temperature alarm threshold
°
C
Value Usage
57 New
Zealand
P3
63
Australian Types A / B
63 (
°
C)
b3:b0
ROR Pre alarm Threshold
7 (12
°
C/min)
P4
b7:b4
ROR Alarm Threshold
5 gives the
Threshold in
°
C/min
9 (14
°
C/min)
b3:b0
CO Filter Divisor
3
P5
b7:b4
CO Step Limit
3
Enhancement multiplier (default 12) * 16 plus value below
Value Functional
Base
Control
Remote LED
Control
Result with
default enh
multiplier
0
Circuit Alarm
Circuit Alarm
192
1 Circuit
Alarm
Relay
193
2
Circuit Alarm
Point Alarm
194
4 Relay
Circuit
Alarm
196
5 Relay
Relay
197
6 Relay
Point
Alarm
198
8
Point Alarm
Circuit Alarm
200
9 Point
Alarm Relay
201
P6
10
Point Alarm
Point Alarm
202
192