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Data Smoke sensing method Light scattering type IR (infra-red) Working voltage 15 - 28 VDC Working current 0.2 mA Alarm current 2.5 mA Temperature class CS (84 °C) Temperature range -25 °C to +70 °C Ambient humidity 0-95% RH, non-condensing Colour White Weight 100 g ± 5% (head only) 365 g ± 5% complete with adapter IP-ADAPT and base IP-BASE It is impor tant only to use base adapter IP-ADAPT par t. no. 5100775 together with a suitable base. For information about suitable bases, see separate document “Base matrix Salwico units”.

General Descrtption NS-AOHS-IS is an intrinsically safe analogue addressable multi sensor detector for Salwico fire alarm systems. It uses a combination of two separate analogue sensor elements. One optical-smoke-sensor and one thermistor-heat-sensor. A SMOKEHEAT alarm is activated, regardless of which sensor being triggered. However, it' s possible for the user to temporarily disable the smoke or heat sensor individually. Alarm condition is indicated on the detector via a red LED. The LED is lit until the alarm has been reset on the control panel. The address is set with a DIP switch, which is mounted on the backside of the detector. NS-AOHS-IS is connected to the detector loop via an intrinsically safe isolator. It is not possible to connect any remote LED indicator to NS-AOHS-IS.