NPI-Series NEMA 4 Electronic Pressure Switch
The Ashcroft® NPI indicating pressure switch was designed to satisfy challenging applications requiring high cycle life with high current switch functionality. This design incorporates a transducer that uses proven thin film technology to trigger a high quality relay, making this an extremely repeatable, reliable and long lasting switch. This switch is ideal for use with pressure control, shutdown or alarm operations.
Key Features:
- Digital Indicating Display
- Ranges up to 20,000 psi
- Easy to program setpoint and deadband
- Incorporates thin film sensor technology which provides repeatability and durability
- Multi-turn potentiometers allows easy setpoint and deadband adjustments Switch
- Relay status indication light
- SPDT 10 amp relay with optional 4-20mA output
- Designed for high cycle life ≥ 10 million cycles
- CRN approved
Applications:
Process Market:
Pipelines
Hydraulic Systems
Industrial Market:
Machine Tools
Injection Molding Machines
Presses
Pumps
Turbines and Compressors
Specialized OEM Equipment
Specifications
Certifications & Approvals
Datasheets & Instruction Manuals
Drawings & Product/Technical Information
Accuracy
±1% of full span
Switch output
SPDT 10 Amp Relay Optional 4-20mA output (requires isolated 24 Vdc power supply)
Setpoint
Single setpoint
Deadband
Adjustable
Enclosure Ratings
NEMA 3, 4, 4X and 13 (IP65)
Enclosure Material
Epoxy coated aluminum
Pressure Connection
1⁄8 NPT Male, 1⁄4 NPT Male. 1⁄8 NPT Female. 1⁄4 NPT Female, 7⁄16-20 SAE-1⁄4 SAE, 1⁄2 NPT Male, 1⁄4 NPT Female, 1⁄4 AMINCO® Female
Pressure Ranges
60 thru 20,000 psi
Power Requirements 24 Vdc or 120 Vac
Process Temperature
-20°F to 160°F (-29°C to 73°C)
Electrical Termination
¾ NPT Female (STD.)
Setpoint Repeatability (Accuracy)
±0.50% full scale
Diaphragm/Actuator Material
17-4PH stainless steel
Ambient Temperature Range
-20°F to 160°F (-29°C to 73°C)
Contact Ashcroft
Ashcroft is a trusted source for pressure, temperature, and test instruments around the world. Learn more about how we can help you protect your people, processes, and profits.