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Ashcroft® N-Series electronic pressure switches have proven reliable in the toughest industrial applications. The pressure sensor is a standard Ashcroft K-Series thin film transducer. The signal developed in the transducer is processed on a conformal coated printed circuit board to produce an output to a high quality electromechanical relay, which is rated for 10,000,000 cycles at rated load! The result is a long lasting pressure switch that will outlast mechanical switches in high cycle applications such as metal stamping presses, plastic injection molding machines, and other machine tool and special equipment. N-Series also features narrow, adjust-able deadbands that can be adjusted to less that 0.5% of range, solving many pipeline and elevated tank applications that are out of the reach of mechanical products. The indicating model is ideally suited for applications where both a pressure indicator and a switch output for alarm, shutdown, control or interlock are needed. Sludge and slurry applications in wastewater and pulp and paper mills often require costly diaphragm seals to isolate instruments from the clogging effects of the process.You can save money by installing N-Series with indication on a single seal. You can even set the switch set and reset points on a test bench without pressure on the system, using the indicator and status lights. Look for these additional features.
Ideal for pressure alarm, shutdown, control on:
PERFORMANCE SPECIFICATIONS
Ashcroft Model: N-Series
Accuracy Class (F.S.): 1.0%
Nonlinearity
Terminal Point* ±0.7%
B.F.S.L. ±0.4%
Hysteresis ±0.2%
Non-repeatability ±0.07%
Interchangeability ±1.0%
*Includes hysteresis
Stability: ±0.5% F.S./year non-cumulative
Durability: 108 cycles 20/80% F.S. with negligible
performance change
Response time: Less than 5m sec
ENVIRONMENTAL CHARACTERISTICS
Temperature Limits:
Storage –65/+250°F
Operating –20/+180°F
Compensated –20/+160°F
Thermal Coefficients (70°F ref.):
Accuracy Zero and Span
1.0% ±0.040% F.S./°F
ELECTRICAL SPECIFICATIONS
Output Signal: Supply Voltage:
4-20mA (2 wire) 36 Vdc unregulated
Reverse polarity protected.
Zero Offset: ±1.0%F.S.
Dimensions