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Ashcroft K2 Thin Film Pressure Transducer with Conditioned Millivolt Output
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Item Number: K2
Manufacturer: Ashcroft
Part Number: K2
Product Options
* denotes required field
Accuracy Selection*
You must select an option for 'Accuracy Selection'.
Pressure Connection Selection*
You must select an option for 'Pressure Connection Selection'.
Sensitivity (Output) Selection*
You must select an option for 'Sensitivity (Output) Selection'.
Electrical Termination Selection*
You must select an option for 'Electrical Termination Selection'.
Pressure Range Selection*
You must select an option for 'Pressure Range Selection'.
* Whole number only
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Ashcroft K2 Thin Film Pressure Transducer with Conditioned Millivolt Output
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 a proven 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 ratio-metric to supply voltage. Transducer performance is directly traceable to the National Institute of Standards and Technology and specifications are conservatively stated. A calibration test certificate is available with each transducer.
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
Applications
Hydraulic, machine tool, test and measurement, and all general purpose industrial process applications.
Technical Specifications
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%
Non-linearity
Interchangeability ±0.5% ±1.0%
Durability: 108 with negligible performance change
Stability: ±0.5% Span/yr
ENVIRONMENTAL SPECIFICATIONS
Temperature Limits:
Storage: –54 to 121°C (–65 to +250°F)
Operating: –28 to 82°C (–20 to +180°F)
Comp. Range: –28 to 71°C (–20 to +160°F)
Thermal Coefficients: (68°F (20°C) ref.) % Span/°F:
Accuracy Class: 0.5% 1%
ZERO ±0.028% ±0.04%
SPAN ±0.028% ±0.04%
Optional (0.5% Accuracy Class only):
ZERO ±0.014% N/A
SPAN ±0.014% N/A
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
Standard Ranges (psi)
0/15* 0/300 0/5000 vac./60*
0/30* 0/500 0/7500* vac./45*
0/60* 0/750 0/10,000* vac./30*
0/100 0/1000 0/15,000* vac./15*
0/150 0/2000 0/20,000* vac./0*
0/200 0/3000
*1% accuracy ranges only.
Consult factory for nonstandard ranges.
Overpressure Limits (F.S.):
15- 3000- 7500-
2000 5000 20,000
Proof 200% 150% 120%
Burst 800% 300% 150%
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
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 is standard with 0.5% and
optional with 1% accuracy units. Consult factory
for pricing, availability and required minimums for
nonstandard products.
Bendix® is a registered trademark of Amphenol Corp.
Hirschmann® is a registered trademark of Richard
Hirschmann of America Inc.
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