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Model K1 Pressure Transmitter
Brand: Ashcroft IncThe Ashcroft K1 is a proven and versatile pressure transducer/transmitter 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 transmitters are offered in many standard pressure ranges with either current or voltage output signals.
Transmitter performance is directly traceable to the National Institute of Standards and Technology.
A calibration test certificate is available with each transmitter.
Features- 0.5% and 1% accuracy
- Vacuum 20,000 psi pressure range
- FM approved (optional)
- Superior long-term stability and repeatability
- Stainless steel NEMA 4X enclosure
- Current/voltage output
- Wide range of electrical connections available
- Optional panel meter digital display
Specifications
Brand
Pressure Range
- bar: 0 to 1,379
- kPa: 0 to 137,900
- psi: 0 to 20,000
Storage Temperature
- -54° to 121° C (-65° to 250° F)
SAE Connection
- 7/16”-20 SAE Male
Pressure Cycles
- Durability: 10⁸ Cycles 20 / 80 % of Span with Negligible Performance Change
Electrical Protection
- Reverse Polarity
Span & Zero Effect
- 0.5 % Accuracy Class Only: ± 0.014 % of Span/°F
- Accuracy Class 0.5 %: ± 0.028 % of Span/°F
- Accuracy Class 1 %: ± 0.04 % of Span/°F
Operating Temperature
- -28° to 82° C (-20° to 180° F)
Enclosure, Body Material
- 300 Series Stainless Steel
- Stainless Steel
Output
- 1-11 Vdc, 3-Wire
- 1-5 Vdc, 3-Wire
- 1-6 Vdc, 3-Wire
- 4-20 mA, 2-Wire
UNF/UNC Connection
- 9/16”-18 UNF Female 2B AMINCO
Burst Pressure
- 150 % to 800 % of Full Scale
Shock
- 100 G, 20 milliseconds Shock in Any Axis
Position Effect
- < 0.01 % of Full Scale
Accuracy
- ± 0.5 % of Span
- ± 1 % of Span
Vibration Effect
- Vibration Sweep: < ± 0.1 % of Full Scale for 0 to 2,000 Hz at 20 G's in any axis
NPT Connection
- 1/4” NPT Female
- 1/4” NPT Male
- 1/8” NPT Female
- 1/8” NPT Male
Pressure Type
- Compound Pressure
- Gauge
Electrical Connectors
- 1/2” NPT Male Conduit with 36” Cable Leads
- 4-Pin Bendix
- 6-Pin Bendix
- Hirschmann Miniature
- No. 24 AWG, 36” PVC, Shielded
Compensated Temperature
- -28° to 71° C (-20° to 160° F)
Non-Linearity
- ± 0.25 % of BFSL
- ± 0.4 % of BFSL
Approvals & Certifications
- FM
- UL
Power Requirement
- 10-36 Vdc Unregulated, < 3 mA for Voltage Output
Stability
- ± 0.5 % of Span/Year
Proof Pressure
- 120 % to 200 % of Full Scale
Environmental Protection
- IP10
- IP66
- NEMA 1
- NEMA 4X
Display
- Digital Display
Diaphragm Material
- 630 Stainless Steel
Humidity
- 95 % Relative Humidity, Non-Condensing
Response Time
- < 5 milliseconds
- Construction Equipment
- General-purpose
- HVAC Equipment
- Hydraulic Applications
- Industrial Applications
- Machine Tools
- Medical Equipment
- Pump Control
- Refrigerators
- Test & Measurement
