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MX4428 MXP Engineering / Technical Manual Document: LT0273
Device Information and Programming
Page 3-16 24 March 2006 Issue 1.5
Parameter Description Default
Value Heat Type
4 A/C – rate of rise enabled.
Mode
5 B/D – rate of rise disabled
4
P0
Heat fixed temperature pre-alarm threshold °C 56 (°C)
Heat fixed temperature alarm threshold °C
57 New Zealand
63 Australian Types A / B
P1
93 Australian Types C / D
63 (°C)
b3:b0 ROR Pre alarm Threshold
7 (12°C/min)
P4
b7:b4 ROR Alarm Threshold
Number + 5 gives the
Threshold in °C/min
9 (14°C/min)
P5
Enhancement multiplier (default 12) * 16 plus code below
Code Functional Base
Control
Remote LED
Control
Final value
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
Note – enhancement multiplier is unused for individual 814H detector settings, but must be
retained in MX4428 default settings, as the same defaults are used for the 814H and
814PH.
The following global parameters, which may be set at the MX4428, affect all applicable
points on all MXPs.
MX4428 Reference Description Default
8XX HEAT FD1 Heat FD1 (CV Filter) 4
8XX HEAT FD2 Heat FD2 (ROR determination) 7
8XX HEAT SL1
Heat SL1 (Fixed temp step limit, °C/5sec)
2
8XX HEAT SL2
Heat SL2 (ROR step limit, °C/min/5sec)
3