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Morley-IAS Low Profile Smoke Detectors

Product Overview

The Morley-IAS MI-PSE (optical) and MI-ISE (ionisation) are analogue, addressable, low-profile smoke detectors designed for the ZX series intelligent multi protocol fire alarm control panels. Because the MI-PSE and MI-ISE are analogue addressable, the control panel can provide the operator with a pinpoint description of where the fire is located. The control panel is capable of not only knowing the detector’s location but exactly how much smoke is in the chamber of the detector.The detector may be set for different sensitivity settings appropriate to the environment of its location

Key Features

  • Low-profile design
  • Common base for optical, ionisation and thermal sensors
  • Addressable-analogue communication
  • Stable communication technique with noise immunity
  • Low stand-by current
  • Rotary decade 01 to 99 address switches
  • Remote LED output as standard
  • Dual LED design provides 360° viewing angle
  • Visible LED’s blink every time the detector is addressed (optional), and illuminate steady on alarm
  • Built-in functional test switch activated by external magnet
  • Optional relay, isolator, or sounder bases
  • LPCB approved

Product Overview

The MI-ISE intelligent ionisation sensor incorporates a unique single-source chamber designed to respond quickly and dependably to a broad range of fires. The MI-PSE intelligent optical sensor’s unique sensing chamber is designed with superior signal to noise ratio. The optical chamber is engineered to sense the presence of smoke produced by a wide range of combustion sources. The MI-ISE and MI-PSE plug-in detectors use a separate base to simplify installation, service, and maintenance. A special tool allows maintenance personnel to plug in and remove detectors without using a ladder

Electrical & Mechanical

Dimensions (Height): 43 mm (installed in B501) 102 mm diameter
Weight: 104 gr. (4 oz)
Operating temperature: - 10°C to 60°C
Relative humidity: 10% to 93% non-condensing
Operating voltage: 15 to 32 Vdc peak
Current consumption:
Stand by current 200 µA @ 24 Vdc
LED current 7 mA @ 24 Vdc (“ON”)
Terminals SEMS screws with clamping plates for up to 2.5 mm2 (13 AWG) wire

part numbers

MI-ISE: Low profile intelligent ionisation sensor. (LPCB REF: 199b/07)
MI-PSE Low profile intelligent optical sensor. (LPCB REF199m/02)
Other accessories:
MOD400R Detector sensitivity test tool. Use with most analogue or digital multimeters
SMK400 Surface mounting kit provides for entry of surface wiring conduit. For use with B501 base only
RMK400 Recess mounting kit. For use with B501 base only
B501 Detector mounting base
B501IEFT Detector mounting base fitted with loop isolator