K2
2Pages

Catalog excerpts

C ASHCROFT' Trust the shield.™ Optional (0.5% Accuracy Class only): ZERO ±0.014% N/A APPLICATIONS: Hydraulic, machine tool, test and measurement, and all general purpose industrial process applications FEATURES: • 0.5% and 1.0% accuracy • Vac.-20,000 psi pressure range • Superior long-term stability and repeatability • Stainless steel NEMA 4X enclosure • Conditioned millivolt output • Wide range of pressure and electrical connections available The K2 is similar to the K1 Series except offering mV/V output options. The K2 is a proven and versatile pressure transducer incorporating polysilicon thin film technology. Modern low-pressure chemical vapor deposition methods provide simple, stable molecular bonds between the metal diaphragm and a polysilicon strain gage bridge. There are no epoxies or bonding agents to contribute to signal instability or drift. The integral metal diaphragm and polysilicon bridge are virtually unaffected by shock, vibration or mounting. These transducers are offered in many standard pressure ranges with high-quality millivolt output signal ratiometric to supply voltage. Transducer performance is directly traceable to the National Institute of Standards and Technology. A calibration test certificate is available with each transducer. PERFORMANCE SPECIFICATIONS Accuracy Class (Span): ±.5% ±1.0% Includes non-linearity (Terminal Point Method), hysteresis non-repeatability zero offset and span setting errors Best Fit Straight Line (BFSL) ±0.25% ±0.4% Durability: 108 with negligible performance change Stability: ±0.5% Span/yr ENVIRONMENTAL SPECIFICATIONS Temperature Limits: Storage: -54 to 121 °C (-65 to +250°F) Thermal Coefficients: (68°F (20°c) ref.) % Span/°F: Multiply zero thermal coefficients by 1.5 on 0/30 psi range and by 3 and 0/15 and vac/0 ranges Humidity: No performance effect at 95% relative humidity - noncondensing FUNCTIONAL SPECIFICATIONS *1% accuracy ranges only. Consult factory for nonstandard ranges. Overpressure Limits (F.S.): 15- 3000- 75002000 5000 20.000 Vibration: Less than ±0.1 %F.S. effect for 0-2000 Hz at 20 g’s in any axis Shock: Less than ±0.05 F.S. effect for 100 g’s, 20 ms shock in any axis Response Time: Less than 5 ms Position Effect: Less than 0.01% Span ELECTRICAL SPECIFICATIONS Output (Sensitivity): 2mV/V 3mV/V 10mV/V 20mV/V Power Requirements: 5-10 Vdc regulated, <3mA Circuit to Case Insulation Resistance: 100 M ohms @ 50 Vdc All specifications are subject to change without notice. All sales subject to standard terms and conditions. © Ashcroft Inc. 2015 10/15 Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA Tel: 203-378-8281 • Fax: 203-385-0408 email: info@ashcroft.com • www.ashcroft.com

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Model K2 Pressure Transducer PHYSICAL SPECIFICATIONS Enclosure: NEMA 4X(NEMA 1 only if <500 psig if electrical termination is Bendix® or Hirschmann®) Weight: 2 oz. (approx. w/o cable) MATERIALS: Case: 300 series stainless steel Cable: No. 24 AWG, 36˝ PVC, shielded, vented,UL approved Diaphragm: 17-4 PH stainless steel Standard Process Connections: (316 stainless steel) 1 ⁄8 NPT male or female 1 ⁄4 NPT male or female 1 ⁄4 SAE-J-514 male 1 ⁄4 AMINCO female required for pressures over 10,000 psi Other connections available Shunt calibration feature is available as an option. Calibration report...

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