DI-9204Exd Digital Flame-proof Manual Call Point
Installation and Operation Manual
The Intelligent Solution
Page 2
4 Construction and Operation Principle
4.1 Exterior View
The exterior view of the MCP is shown in Fig. 1.
Cover
Base
Unit: mm
DO NOT OPEN WHEN AN EXPLOSIVE
GAS ATMOSPHERE IS PRESENT
Fig. 1
4.2 Operation Principle
The MCP alarms fire if pressed. It is self-locked mechanically to reduce possibility of
mis-triggered alarm. The built-in microprocessor is designed for checking alarms and
controlling its indicators.
5 Installation and Wiring
Warning: Before installing the MCP, disconnect power from the loop.
Before installation, check whether the enclosure and labels are sound and complete.
The MCP can be installed either on the wall or on a pole.
5.1 Wall-mounting
The schematic diagram for a wall-mounted MCP is shown in Fig. 2.
M5X8 Screw
Fig. 2
The steps for installing the MCP on the wall are as follows.
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