MORLEY-IAS ZX Fire Alarm Control Panels
Page 58 Document No. 996-175-000-1, Revision 01 Commissioning Manual
16.5 Hochiki Multi-Sensor Support
• The Hochiki Multi-Sensor is supported as detailed below from panel software version 824 onwards.
Previously, from version 698, the multi-sensor was partially supported – operating as an optical smoke
device becoming more sensitive with temperatures above 40 °C.
• Where the control panel is in normal operation or sensitivity day mode is invoked, the multi-sensor
mode and threshold parameters can be modified according to the specific site requirements. This
allows a different mode of operation at different times of the day (see Section 11.3 Sensitivity Mode).
For each multi-sensor address, in the edit device menu, choose to ‘edit thresholds’. Firstly, the mode
of operation will be presented. Select 0 for multi-mode, 1 for optical-smoke only mode or 2 for heat
only mode. Normal threshold set-up will follow. These settings will take effect on a device by device
basis throughout the day mode period (where sensitivity mode is programmed).
• Where night mode is invoked (as part of sensitivity day mode), the device operates in the multi-sensor
mode providing the control panel with an analogue value representing a combination of the smoke
and heat elements of the sensor. The pre-alarm threshold is fixed at 45 and the full-alarm threshold at
55.
16.6 System Sensor/ Morley-IAS Multi-Sensor & Laser Support
16.6.1 System Sensor/ M-IAS Multi & Laser Diagnostics
• When viewing the device from the user menus, the meaning of the analogue value is as follows:
Value displayed Multi laser
0 No device No device
1 Mid-range invalid Mid-range invalid
2 Mid-range invalid Mid-range invalid
3 Mid-range invalid Mid-range invalid
4 Mid-range invalid Mid-range invalid
4 or 7 Out of range Out of range
5 Low chamber trouble Drift alert 0.3%
10 Maintenance alert Maintenance alert
15 Maintenance urgent Drift alert 0.6%
20 initialising Initialising
29 multi / 32 laser Normal Normal
50 multi / 50 laser Level 1 alarm Level 1 alarm
64 multi / 57 laser Level 2 alarm Level 2 alarm
79 multi / 64 laser Level 3 alarm Level 3 alarm
93 multi / 71 laser Level 4 alarm Level 4 alarm
107 multi / 79 laser Level 5 alarm Level 5 alarm
121 multi / 86 laser Level 6 alarm (HEAT) Level 6 alarm
- / 93 laser - Level 7 alarm
- / 100 laser - Level 8 alarm
- / 107 laser - Level 9 alarm
System Sensor Multi-sensor & Laser Diagnostics
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