Salwico NS-AOHS-IS Intrinsically Safe Optical Smoke/Heat Detector N11250
The NS-AOHS-IS N11250 is an intrinsically safe analogue addressable multi sensor detector for Salwico fire alarm systems NSAC-1, CS4000 and CS3000 together with SPK-2.
NS-AOHS-IS N11250 uses a combination of two separate analogue sensor elements. One optical smoke sensor and one thermistor heat sensor. A Smoke Heat alarm is activated, regardless of which sensor being triggered. However, it is possible for the user to temporarily disable the smoke or heat sensor individually.
Alarm condition is indicated on the N11250 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 N11250 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.
Mounting base are sold separately, see NS-ADAPT-IS2 IP55 IS Base Adapter N1430.
Key features include:
- Low profile design
- Easy Maintenance
- Marine Approval
- ATEX Ex ia, IECEx ia Approved
- Product Code: NS-AOHS-IS (N11250)
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