The Morley-IAS range of intelligent thermal detectors are used with the ZX series intelligent multi protocol fire alarm control panels to measure thermal levels caused by a fire and report the analogue level of the thermal measurement to the control panel. The use of analogue information provides significant benefits to the end user, installer and serviceman in ways which are not possible with a conventional type system. Since this detector is also addressable, it will help to quickly locate a fire during its early stages. The MI-FHSE and MI-HTSE are fixed temperature analogue addressable sensors employing low mass thermistors and microprocessor technology for fast response and linear temperature sensing. Their linear response allows these sensors to be used to signal temperatures over the range of 58°C (Class A1S) to 78°C (Class BS).

• Dual thermistors • Rate-of-rise fixed temperature and high fixed temperature models • 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

mechanical Dimensions (Height): 51 mm installed in B501 Weight: 170 gr. (6 oz) Operating temperature: - 10°C to 60°C Humidity: 10% to 93% non-condensing Compatible bases: B501,B524IEFT, B524RLY Figure 1 - MI-FHSE fitted in B501 base. electrical Operating voltage: 15 to 32 Vdc Alarm Current (LED on): 7mA maximum Stand by current: 200 μA maximum Terminals: SEMS screws with clamping plates for upto 2.5 mm2 (13 AWG) wire