Overview
The Cincinnati Test Systems 520-7.9scc/m-195.0psig-21 is a calibrated leak standard used to verify and validate the accuracy of leak detection instruments in manufacturing environments. Built by Cincinnati Test Systems (CTS), a recognized leader in leak detection equipment for over 40 years, this unit provides a stable, repeatable reference leak for pressure decay and other leak test methodologies. The model designation indicates a nominal leak rate of 7.9 scc/m (standard cubic centimeters per minute) at an operating pressure of 195 psig (pounds per square inch gauge).
Key Features
- Precision-engineered calibrated leak standard for equipment validation and verification
- 7.9 scc/m reference leak rate at 195 psig nominal operating pressure
- Used in manufacturing quality control and pressure decay leak test systems
- Stable, repeatable reference source for ensuring measurement accuracy
- Industry-standard design compatible with CTS leak detection instruments and third-party systems
- New, open box condition; ready for immediate deployment
Technical Specifications
- Manufacturer: Cincinnati Test Systems (CTS)
- Model Number: 520-7.9scc/m-195.0psig-21
- Reference Leak Rate: 7.9 scc/m at nominal pressure
- Operating Pressure: 195 psig (13.4 bar)
- Product Type: Calibrated Leak Standard
- Application: Pressure decay leak testing, equipment calibration & validation
- Condition: New, Open Box
Typical Applications
Calibrated leak standards like the 520-7.9scc/m-195.0psig-21 are critical in:
- Equipment Validation: Verifying the accuracy and repeatability of leak detection instruments before production use
- Periodic Recalibration: Confirming that leak test systems remain within acceptable tolerance windows during maintenance cycles
- Quality Assurance: Providing traceable reference points for ISO/IEC 17025 accredited calibration laboratories
- Manufacturing QC: Supporting pressure decay testing in automotive, HVAC, medical device, and appliance manufacturing
Compatibility & Replacements
Compatible With
- CTS Sentinel MH leak test instruments
- CTS Sentinel IX series leak detection systems
- Pressure decay leak test benches and fixtures
- Third-party leak detection instruments using standard NPT or similar port connections
- ISO 17025 accredited calibration labs and metrology centers
Replaces / Drop-In Replacement For
The model number 520-7.9scc/m-195.0psig-21 is a specific, non-duplicate part. Verify exact compatibility with your system integrator or CTS technical support before substitution. Similar CTS 520-series calibrated leak standards exist with different flow rates and pressures (e.g., 520-2.0scc/m, 520-15.00scc/m, 520-40.00scc/m) but are not direct drop-in replacements due to flow rate differences.
Works With
- CTS leak detection software and data logging systems
- Standard pressure measurement instruments (gauges, transducers, PLCs)
- Compressed air and inert gas supply systems
- Digital multimeters and data acquisition devices for leak rate verification
- ISO/IEC 17025 test protocols and traceability documentation






