Sensitive (differential) Pressure Switch for Air JCI
This (differential) pressure switch is used to sense flow of air, single or differential air pressure.
Typical applications include:
- Detect clogged filter
- Detect frost or ice build-up on air
conditioning coils
- Air proving in heating or ventilation ducts.
- Maximum airflow controller for variable air volume system.
- Detect blocked flue or vent
- Monitor fan operation
This switch senses a change in the (differential) pressure (either velocity pressure or pressure drop across a restriction) as the airflow changes. The (differential) pressure is applied to the two sides of a diaphragm in the control. The spring- loaded diaphragm moves and actuates the switch. The series P233A/F can also be used to detect small positive gauge pressure by using only the high-Differential (fixed) = 0,25mbar
Sample media Air, non-inflammable gases, non-aggressive gases
Max. continuous overpressure 300 mbar
Calibration position With diaphragm vertical. (For horizontal position make corrections as mentioned in fig 2)
Calibration temperature 20°C
Operating temp. Limits -15 to +60 °C
Storage temperature -35 to 60°C
Operating/storage humidity 10 to 95%RH, non condensing
Material
Cover: Polycarbonate
Case: Glass reinforced polycarbonate
Bottom: Glass reinforced polycarbonate
Diaphragm: Nitrile butadiene rubber
Switch: Brass, Phosphorbronze, Silvernickel
Weight 115 g, 330 9 For models including grommet and bracket
Protection class IP 54
One switch to measure relative pressure, vacuum or differential pressure
- Provides versatility to match various applications
Various accessories available
- Provides flexibility
Compact and durable construction
- Provides durability in combination with neutral gases
Easy mounting and wiring, various mounting possibilities
- Reduce installation time
Standard PG 11 nipple and optional DIN 43650 connector
- Provides flexibility in wiring connections
Accurate and stable switch point
- Provides high accuracy and repeatability
SPDT contact standard
- Can be used for “normally open” or “normally closed” applications