K8
2Pages

Catalog excerpts

C ASHCROFT' Trust the shield.™ *1% accuracy ranges only. APPLICATIONS: Hydraulic, hand tools, machine tool, compressor, HVAC, medical, control valves, construction equipment and general purpose industrial process and OEM applications FEATURES: • 0.5% and 1.0% accuracy • 45-20,000 psi pressure ranges • Superior long-term stability and repeatability • Wide range of pressure and electrical connections available • Miniature size and light weight • Millivolt output The Ashcroft® K8 is a proven pressure transducer incorporating polysilicon thin film technology. Modern low-pressure chemical vapor deposition methods provide simple, stable molecular bonds between metal diaphragm and a polysilicon strain gage bridge. There are no epoxies or bonding agents to contribute to signal instability or drift. The K8 is offered in many standard pressure ranges with high quality millivolt output. Signal output is proportional to supply voltage, and sensitivity varies between 6-18 mV/V at full scale. Transducer performance is directly traceable to the National Institute of Standards and Technology. PERFORMANCE SPECIFICATIONS Accuracy Class (Span): Includes non-linearity ±0.5% ±1.0% (Terminal Point Method), hysteresis, non-repeatability Best Fit Straight Line (BFSL) ±0.25% ±0.4% Durability: 108 cycles 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 Accuracy Class: 0.5% 1% Optional (Accuracy Class only): ZERO ±0.014% N/A Humidity: No performance effect at 95% relative humidity - noncondensing FUNCTIONAL SPECIFICATIONS Consult factory for nonstandard ranges. Overpressure Limits (F.S.): 45- 3000- 75002000 5000 20,000 Vibration Sweep: 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, 20ms shock in any axis Response Time: Less than 5 ms Position Effect: Less than 0.01% F.S. 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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C ASHCROFT' Trust the shield.™ Model K8 Pressure Transducer ELECTRICAL SPECIFICATIONS Output (Sensitivity): Varies from 6-18m v/V at full scale depending upon pressure range Consult factory for interchangeability within a particular pressure range Excitation: 3-10 Vdc regulated Supply Current: 1.4mA (nominal) Zero Offset: ±3mV/Vdc Bridge Resistance: 3500 ohms (nominal) Circuit to Case Insulation Resistance: 100 M ohms @ 50 Vdc PHYSICAL SPECIFICATIONS Weight: 2 oz (approx. without cable F1 Type) MATERIALS: Socket: 300 series stainless steel Cable: 4" polyethylene coated, 30 AWG or...

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