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N-Series Electronic Pressure Switch
Brand: Ashcroft IncThe Ashcroft® NPA watertight pressure switch was designed to satisfy challenging applications needing high cycle rates with switch functionality.
This design incorporates proven thin film technology to trigger a high quality relay, making this an extremely reliable and long lasting switch.
This switch is ideal for use with pressure control, shutdown or alarm operations.
Features- Digital indicating display
- Incorporates thin film sensor technology
- Multi-turn potentiometers allow easy setpoint and deadband adjustments
- Switch status indication
- SPDT 10 amp relay
Specifications
Brand
Proof Pressure
- psi: 120 to 24,000 (kPa: 827.4 to 165,500, bar: 8.27 to 1,655)
Response Time
- < 5 milliseconds
Non-Repeatability
- ± 0.07 % of Full Scale
Compensated Temperature
- -29° to 71° C (-20° to 160° F)
Zero Offset
- ± 1 % of Full Scale
Power Requirement
- 110 Vac, 50/60 Hz
- 24 Vdc
- 250 Vac, 50/60 Hz
Hysteresis
- ± 0.2 % of Full Scale
Storage Temperature
- -54° to 120° C (-65° to 250° F)
Environmental Protection
- Explosion-proof
- IP54
- IP66
- NEMA 13
- NEMA 3
- NEMA 4
- NEMA 4X
- NEMA 7
- NEMA 9
- Watertight
Process Connection Material
- 316 Stainless Steel
Diaphragm Material
- 630 Stainless Steel (17-4 PH)
Set Point - Decreasing
- bar: 0.2 to 1,379
- kPa: 20.68 to 137,900
- psi: 3 to 20,000
Set Point - Increasing
- bar: 0.2 to 1,379
- kPa: 20.68 to 137,900
- psi: 3 to 20,000
Indication
- LED
SAE Connection
- 1/4” SAE
- 7/16”-20 SAE
Supply Voltage
- 36 Vdc (Unregulated)
Switch Type
- SPDT
Electrical Protection
- Reverse Polarity
Pressure Range
- psi: 3 to 20,000 (kPa: 20.68 to 137,900, bar: 0.2 to 137.9)
Output
- 10 A at 250 Vac
- 10 A at 30 Vdc
- 4-20 mA, 2-Wire
System Pressure
- bar: 0 to 1,655
- kPa: 0 to 165,500
- psi: 0 to 24,000
Non-Linearity
- BFSL: ± 0.4 % of Full Scale
- Terminal Point: ± 0.7 % of Full Scale
Burst Pressure
- psi: 480 to 60,000 (kPa: 3,309 to 413,700, bar: 33 to 4,137)
Electrical Rating
- 10 A at 250 Vac
- 10 A at 30 Vdc
Cone & Thread Connection
- 1/4” AMINCO Female
Stability
- ± 0.5 % of Full Scale Per Year Non-Cumulative
Electrical Connectors
- Terminal Block
NPT Connection
- 1/2” NPT Male
- 1/4” NPT Female
- 1/4” NPT Male
- 1/8” NPT Female
- 1/8” NPT Male
Accuracy
- 1 % of Full Scale
Approvals & Certifications
- ISO 9001
Temperature Coefficient
- Zero & Span: ± 0.040 % of Full Scale/°F (1 % Accuracy)
Operating Temperature
- -29° to 82.2° C (-20° to 180° F)
- High Cycles
- Hydraulic Systems
- Injection Molding Machines
- Machine Tools
- OEM Equipment
- Pipelines
- Presses
- Pumps
- Turbines & Compressors
