UTC Fire and Security AirSense Stratos EX User Manual

Chapter 4: Commissioning
Stratos EX Hazardous Area Aspirating Smoke Detection System Installation Manual 41
Suction pressure verification
All sample hole suction pressures should be measured and recorded on the
checklist. Measured suction pressures less than 0.5 inches of water are not
acceptable.
Use the following method to measure sampling point suction pressures (as
illustrated in Figure 19).
To measure sampling point suction:
1. Attach a flexible hose onto the suction side of the magnehelic pressure
gauge.
2. Place the hose against the sampling hole and hold it in place.
3. Hold the gauge in the plane in which it was calibrated and read the suction
pressure from the gauge.
Figure 19: Magnehelic test setup
(1) Ceiling tile
(2) Sample point
(3) Hose
(4) Magnehelic pressure gauge

UTC Fire and Security AirSense Stratos EX Specifications

General

Brand	UTC Fire and Security
Model	AirSense Stratos EX
Category	Smoke Alarm
Language	English