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GE921 Adjustable Air Differential Pressure Switch for monitoring overpressure, vacuum and differential pressure of air or other non-combustible, non-aggressive gases. It can be used to sense (differential) pressure and flow of air in ducts and pipes.
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Specification:
* Max. differential pressure: 5000Pa
* Protection Class: IP54
* Output: 1.0A (0.4A)/ 250VAC
* Working temperature:-20~85 C
* Storage temperature: -40~85 C
* Min. Actuating pressure: 20Pa(Standard); min.starting interval: 10Pa; range: 20~30Pa
* Installation Direction: vertical (standard installation style)
* Hose connection: pipe P6.2mm
* Protection Class: IP54
* Output: 1.0A (0.4A)/ 250VAC
* Working temperature:-20~85 C
* Storage temperature: -40~85 C
* Min. Actuating pressure: 20Pa(Standard); min.starting interval: 10Pa; range: 20~30Pa
* Installation Direction: vertical (standard installation style)
* Hose connection: pipe P6.2mm
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Type | Adjust Range | Return Difference | Deviation |
GE921A | 20~200 Pa | 10 Pa | ± 10% |
GE921B | 40~100 Pa | 20 Pa | ± 10% |
GE921C | 40~200 Pa | 20 Pa | ± 10% |
GE921D | 50~500 Pa | 20 Pa | ± 10% |
GE921E | 200~1000 Pa | 100 Pa | ± 10% |
GE921F | 500~2500 Pa | 150 Pa | ± 10% |
GE921G | 1000~5000 Pa | 200 Pa | ± 10% |
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Possible fields of application include:
Possible fields of application include:
* Monitoring industrial cooling-air circuits
* Maximum air flow controller for variable air volume systems
* Overheating protection for fan heaters
* Monitoring flows in ventilation ducts
* Controlling air and fire-protection flaps
* Frost protection for heat exchangers
* Air proving in ventilation ducts
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