Key Features
Wide assortment of analog outputs, pressure and electrical connections
UL and CE approved
High EMI/RFI immunity rating
Uses Ashcroft’s proven polysilicon thin film technology
Compact, rugged construction
All-stainless steel sensor element
Markets & Applications
HVAC-R
Ammonia and Refrigeration Services
Machine Automation
Hydraulics and Pneumatics
Pumps and Compressors
Ranges
Vacuum
Compound
1 ... 1400 bar / 20000 psi
Wetted Parts Material
Stainless steel 304 (1.4301)
Sensor stainless steel 17-4PH
Electrical Termination
Bendix® Style 4-Pin
Hirschmann EN 175301-803 Form A
M12 Hirschmann® 993-172-100
Wire leads, PVC insulated
Ingress Protection
IP65
Case or Body Material
Glass-filled Nylon
Mounting
Stem
Output Signal
4-20 mA (2-wire)
0-5 VDC (3-wire)
0-10 VDC (3-wire)
Many other voltage outputs
Dampening
Throttle screw
Process Connection Style
Threaded
Accuracy
0.25% of span static BFSL (Best Fit Straight Line Method)
1% of span Total Error Band Accuracy (-20 to 85ºC)
1.5% of span Total Error Band Accuracy (-40 to -20ºC and 85 to 125°C)
Stability
≤±0.25% span/year at reference conditions
Pressure Type
Gauge pressure
Durability
>50 million cycles
Equipped with a highly reliable and accurate sensing element, featuring the patented Ashcroft® Si-Glass™ sensor, Ashcroft offers a range of differential pressure transmitters specifically designed and developed for use in the cleanroom industry. Using an ultra-thin single crystal diaphragm, Ashcroft differential pressure transmitters offer inherent sensor repeatability and stability, making them stand out as highly accurate, long-term stable and reliable measurement instruments for cleanroom pressure monitoring.
The silicon diaphragm sensor is free of adhesives or other organic materials that are commonly used in differential pressure measurement technology and contribute to a drift in the measured value acquisition or a mechanical reduction in the measurement accuracy.
Ashcroft differential pressure transmitters incorporate the TruAccuracy™ specification. Ashcroft’s accuracy claim is based solely on terminal endpoint methodology and not on statistically derived accuracy claims’.
TruAccuracy™ means that Ashcroft differential pressure transmitters include zero offset, non-linearity, hysteresis, non-repeatability, zero offset and span adjustment error in their accuracy statement.
The user thus has a ready-to-install device at his disposal that does not require any initial calibration after installation. This considerably reduces the time and costs involved.
Other commercially available measuring devices usually do not include information on zero point deviation and span error in their accuracy specifications, so that these measurement errors (up to ±1.00%) must be added to the accuracy in order to achieve reliable performance characteristics.