Product Overview
Ashcroft K1 Series Compound Pressure Transducer, Unused NOS
Presented here is an Ashcroft K1-7-M02-42-B8 pressure transducer configured for a vacuum to 15 psi compound range, with a 4–20 mA output and a 1/4 in NPT male process connection.
The K1 series sits squarely in Ashcroft’s long-running lineup of stainless-steel industrial transmitters built for continuous service, simple loop integration, and predictable behavior over years of operation.
Product Condition
Unused, new old stock unit kept in its original packaging. It shows no signs of field installation or service and was held as inventory rather than deployed.
Product Overview
Ashcroft’s K1 family is designed as a general-purpose pressure transmitter for OEM equipment and industrial systems that rely on standard 4–20 mA signaling. The thin-film stainless steel sensing element and welded construction support stable output across a wide range of pressures, including low compound ranges such as vacuum to 15 psi.
This configuration is intended for applications where slight vacuum and low positive pressure must be monitored using a simple two-wire current loop tied directly into PLCs, indicators, or data acquisition systems.
Key Features
- Model K1-7-M02-42-B8 industrial pressure transducer
- Compound pressure range: vacuum to 15 psi
- 4–20 mA, two-wire loop-powered output
- Accuracy option 7: 1.0% of span terminal point accuracy
- 1/4 in NPT male process connection (M02)
- 4-pin Bendix-style circular electrical connector (B8)
- Stainless steel wetted construction typical of K1 series
- Designed for continuous industrial and OEM service
Applications
- Low-pressure pneumatic and air systems
- Monitoring slight vacuum and low positive pressure in manifolds
- Filter and receiver tank pressure indication
- OEM machinery requiring compact 4–20 mA pressure feedback
- General industrial process monitoring
- PLC and control panel integration
Frequently Asked Questions
What pressure range is this transducer calibrated for?
This unit is calibrated for a compound range spanning vacuum through 15 psi, suitable for low-pressure and light vacuum applications.
What does the “42” output code indicate?
Code 42 designates a 4–20 mA, two-wire loop-powered output, commonly used in industrial control systems.
What type of electrical connection does B8 specify?
B8 denotes a Bendix-style circular connector. The exact pinout should be verified against Ashcroft documentation for the K1 series.
Is this unit unused?
Yes. It is unused new old stock and remains in its original packaging, with no evidence of prior installation.
Is this suitable for very low differential or inches-of-water measurements?
No. With a full-scale range up to 15 psi, this transducer is better suited to low psi compound pressures rather than ultra-low differential applications.
Built for steady service rather than novelty, this K1 transmitter is ready to step back into a control loop and continue the work it was engineered to do.
