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Product Detailed Parameters
- Description：High Performance Fixed Range Pre
- Series：PT30
- Mfr：NOSHOK, Inc.
- Package：Tape & Box (TB)
- Applications：Industrial
- Pressure Type：Absolute
- Operating Pressure：0PSI ~ 100PSI (0kPa ~ 689.48kPa)
- Output Type：Analog Current, Analog Voltage
- Output：4 mA ~ 20 mA
- Accuracy：±0.25%
- Voltage - Supply：-
- Port Size：Male - 1/4" (6.35mm) NPT
- Port Style：Threaded
- Features：-
- Termination Style：DIN EN 175301-803 Form C with Mating Connector
- Operating Temperature：-30°C ~ 100°C
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The NOSHOK PT30-100psia-1-1-2-70-CC is a precision absolute pressure gauge designed for measuring pressures relative to a perfect vacuum. This instrument features a sealed reference chamber to ensure accurate readings in systems where atmospheric fluctuations would otherwise compromise data integrity. The model designation indicates a measurement range of 0 to 100 psia, constructed with specific wetted materials and connection types suitable for industrial environments requiring reliable static pressure monitoring.
Feature Summary
- Provides absolute pressure measurement by referencing a sealed vacuum chamber rather than ambient atmospheric conditions.
- Ensures stable performance in varying environmental conditions by isolating the sensing element from external air pressure changes.
- Designed for applications requiring precise static pressure monitoring where gauge pressure references are insufficient.
Applications
- Vacuum system monitoring and control
- Barometric pressure compensation in fluid systems
- Altitude simulation testing equipment
Procurement Notes
Verify that the application requires absolute pressure measurement rather than gauge or differential pressure. Confirm the process media compatibility with the specified wetted materials. Ensure the operating temperature range aligns with the sensor's rated limits. Check that the connection type matches the existing panel or pipe configuration. Validate that the 100 psia range covers the maximum expected system pressure without exceeding the safe working limit.
Selection Notes
Select this model when measurements must remain consistent regardless of local weather patterns or elevation changes. It is appropriate for closed-loop systems where the total pressure above a vacuum is the critical parameter. Consider this option if previous gauge pressure readings showed instability due to atmospheric shifts. Evaluate the need for liquid filling if vibration damping is required alongside absolute measurement capabilities.
Part Context
NOSHOK manufactures a comprehensive line of pressure instrumentation, including gauges, transmitters, and switches. The PT series represents their standard analog gauge offerings, known for durability and accuracy. This specific part falls within the category of absolute pressure instruments, distinguishing it from common gauge pressure models that reference the atmosphere. The brand emphasizes long-term reliability and corrosion resistance across its product portfolio.
Replacement Considerations
When replacing an existing absolute pressure gauge, ensure the new unit maintains the same 0-100 psia range and vacuum reference capability. Verify that the physical dimensions and mounting style allow for direct interchangeability. Confirm that the process connection thread and size match the original installation to avoid adapter requirements. Check that the dial orientation and readability meet the operator's visibility needs.
