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Nittan ST-PY-AS Sensortec Addressable Optical Smoke Detector

Product Code: ST-PY-AS

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Nittan ST-PY-AS Addressable Optical Smoke Detector Key Features

  • Low profile, stylish appearance
  • EEPROM Addressing (Handheld Programmer)
  • Low monitoring current
  • Supplied with protective dust cover
  • Patented OMNIVIEW 360° LED fire alarm indicator
  • Remote indicator output
  • Compatible with UB-4 and STB-4SE bases
  • Polarised terminals
  • Optical sensor, detecting visible particles of combustion

Product Information

The Nittan Sensortec ST-PY-AS is an attractively-styled, low profile photoelectric sensor for use with Nittan ‘AS’ protocol control panels. Its aesthetically pleasing design enables it to blend unobtrusively into modern working environments.

The ST-PY-AS photoelectric sensor has two terminals for connection onto the two wire loop. The remaining terminal provides a switched current sink function which operates when the sensor goes into alarm condition, suitable for the operation of an auxiliary function such as a remote indicator. Terminal 3 (RIL) is limited to 2mA.

A variety of bases are available for use with the ST-PY-AS sensor. It is important to use the correct base for each application. The available base models are:

  • UB-4 base: for standard use with ST-PY-AS series sensor.
  • STB-4SE base: Similar to UB-4 base, except deeper

Base Sold Separately

MTM Programmer Sold Separately

Technical Details

Manufacturer: Nittan
Product Code: ST-PY-AS
Protocol: Nittan 'AS' Protocol
Sensor Method: Light Scatter
Sensor Element: IR LED and PhotoDiode
Operating Voltage: 16V d.c to 28V d.c
System Voltage: 24V d.c
Quiescent Current: 500µA
Sensitivity: 0.19 dB/m to 0.27dB/m
Alarm Current: 5mA
Current for external remote LED indicator: 2mA
Operating Temperature: - 10°C to + 55°C,/td>
Storage Temperature: - 20°C to + 60°C
Charging Time: 20 Seconds
Relative Humidity ≤RH95% non-condensing
I.P Protection Rating: IP42
Addressing Method: Soft addressing, Non-Volatile EEPROM
Material: ABS
Dimensions: ∅104mm x 33mm (Sensor head) - ∅104mm x 48mm (Sensor head and STB-4)
Mass: 105g (Sensor Head) - 170g (Sensor Head and STB-4 base)
EMC Conformance: EN54-6:2000
CE Conformity: Yes
Standards / Certification: EN54-7:2000

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£34.45 Ex Vat

£41.34 Inc Vat

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