Optical-thermal smoke detector

HM/PTSE

The optical-thermal sensor uses thermal assistance to the core photoelectric smoke detector to give enhanced false alarm immunity and faster response to a wide range of incipient fires. The plug-in unit combines two separate sensing elements that are managed by embedded software to act as a single unit.
The optical-thermal detector conforms to EN54-7, a 58°C fixed temperature and rate of rise thermal assistance conforming to EN54-5. The thermal detection function combines thermistor technology with a software corrected linear temperature response. In areas where the normal daytime activities may potentially create unwanted alarms, the detector can be programmed to operate in a “heat only” mode, automatically reverting to full photo-thermal operation during unoccupied periods.
The sensing elements of the HM/PTSE optical-thermal detector are panel controllable so the sensitivity thresholds of each element can be changed by the panel offering the ability to customise the device for the changing use of the area it is protecting. The detector has two integral red LEDs that provide 360° local visual indication of the device status.

*Do not install detectors in locations where normal ambient temperature exceeds 50° C.

  • Genuine and fast response
  • Advanced protocol and smoothing filter to suppress false alarm
  • Rotary decade address switches
  • Analog addressable communication
  • Dual integrated LED for 360° visibility
  • Specification: EN54-5 , EN54-7
  • LPCB approved
  • Environment friendly - meets RoHS legislative requirements

Sensitivity Settings
Level 1 3% Obs./m + Class A1R
Level 2 3% ... 6.1% variable Obs./m + Class A1R
Level 3 6.1% Obs./m + Class A1R
Level 4 6.1 ... 9.4% variable Obs./m + Class A1R
Level 5 9.4% Obs./m + Class A1R
Level 6 Class A1R

Operating voltage 15 ... 32 V DC
Humidity 10 ... 93% (non-condensing)
Dimension ø: 102 mm (with base MI/B501AP/IV) H: 61 mm (with base MI/B501AP/IV)
Weight 99 g
Color Ivory
Maximum standby current 200 uA @ 24 V DC (no LED blink) 300 uA @ 24 V DC (LED blink enabled)
Led current 3.5 mA @ 24 V DC
Remote output voltage 22.5 V DC @ 24 V DC input
Remote output current 10.8 mA @ 24 V DC
Temperature range -30°C ... +70°C *
Max. wire guage 2.5 sqmm
Material PC / ABS
  • MI/B501AP/IV Detector and AV standard base
  • SMK400AP-IV Deep base for MI/B501AP/IV

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Product data sheet Honeywell Morley-IAS HM Detectors Version: 08.2016 327 KB