The LeakLab KTK.IZ.003 is a refillable internal helium reference leak intended as a service replacement for compatible Pfeiffer ASM 142, ASM 310 and ASM 340 instruments. The documented unit has a calibrated flow of 1.08 × 10⁻⁸ Pa·m³/s at 21.0 °C and a fill pressure of 0.25 MPa. It is supplied with a product passport and calibration record. Confirm instrument configuration and fit before ordering.
Description
LeakLab KTK.IZ.003 Internal Helium Reference Leak
The LeakLab KTK.IZ.003 is a refillable internal calibrated leak developed for service replacement of the built-in helium reference source in compatible Pfeiffer ASM leak detectors. Its intended applications include ASM 142, ASM 310 and ASM 340 instruments, subject to confirmation of the exact instrument configuration and connection.
The calibrated leak produces a helium flow in the 10−8 Pa·m3/s region. The unit described in the source product record was calibrated at 1.08 × 10−8 Pa·m3/s at 21.0 °C with a fill pressure of 0.25 MPa. Use the passport and calibration record supplied with the individual unit for all quantitative work.
Why the Internal Reference Leak Matters
A helium mass-spectrometer leak detector uses its internal reference leak to check sensitivity, response and calibration. If the internal reservoir loses helium, the metering element becomes contaminated or the flow moves outside its permitted range, the instrument may fail its calibration routine or produce unreliable quantitative results.
The internal calibrated leak is therefore a measurement component, not simply an accessory. Its condition should be included in planned instrument diagnostics and maintenance.
Intended Compatibility
| Instrument family | Intended use | Compatibility requirement |
|---|---|---|
| Pfeiffer ASM 142 | Replacement of the built-in reference leak | Confirm instrument version, mounting and connection |
| Pfeiffer ASM 310 | Restoration of the internal calibration source | Confirm instrument version, mounting and connection |
| Pfeiffer ASM 340 | Internal service replacement | Confirm instrument version, mounting and connection |
| Other ASM configurations | Possible application after technical review | Dimensions, connection and temperature-sensor arrangement must be checked |
The existing temperature sensor from the previous assembly is transferred to the KTK.IZ.003 where the instrument configuration permits. Installation instructions and service documentation for the specific detector take precedence.
Documented Technical Data
| Parameter | Documented value |
|---|---|
| Model | KTK.IZ.003 |
| Tracer gas | Helium |
| Calibrated flow recorded for the referenced unit | 1.08 × 10−8 Pa·m3/s |
| Calibration temperature for the referenced unit | 21.0 °C |
| Fill pressure recorded for the referenced unit | 0.25 MPa |
| Maximum stated fill pressure | 1.25 MPa |
| Flow temperature correction | 1% per 1 °C |
| Relative deviation | No more than ±30% |
| Flow measurement method | Mass-spectrometric comparison with a reference gas flow |
| Operating-temperature range | +10 to +40 °C |
| Calibration interval | 1 year |
| Construction | Refillable helium reservoir with a calibrated flow element |
Values above are taken from the passport information described on the source page. Confirm them against the documents supplied with the individual product because calibrated flow and associated conditions are unit-specific.
Refillable Design
Unlike a sealed disposable reference source, the KTK.IZ.003 can be refilled, recalibrated and returned to service when technically suitable. This can extend the useful life of the assembly and reduce dependence on repeated replacement of the complete internal leak. Refill and calibration must be performed by a competent service or calibration provider using the applicable procedure.
Installation and Commissioning
The replacement procedure should preserve the instrument's original measurement arrangement. Where applicable, the temperature sensor from the previous internal leak is transferred to the replacement assembly. After installation, the connections must be leak-tested and the detector must complete its prescribed calibration and functional checks.
- Verify the complete detector model, serial number and service configuration.
- Compare mounting dimensions and connections before installation.
- Transfer the temperature sensor only as specified for the instrument.
- Check the installed assembly for leak tightness.
- Enter or confirm the unit-specific calibrated flow and temperature data as required by the detector.
- Run the manufacturer's calibration and sensitivity-check procedure.
Documentation
The stated supply documentation includes a product passport and calibration record. Depending on the individual unit, these documents identify the model, tracer gas, calibrated flow, calibration temperature, fill pressure, calibration date and the applicable operating or recalibration information.
The documentation for the delivered unit is the controlling source for traceability and quantitative use. Additional verification or accreditation requirements should be agreed before ordering.
Applications
- Service of compatible Pfeiffer ASM 142, ASM 310 and ASM 340 leak detectors.
- Restoration of the detector's internal calibration function.
- Planned maintenance of helium leak detectors in industrial and laboratory systems.
- Vacuum-equipment, electronics, mechanical-engineering and other quantitative leak-testing applications.
Ordering
Contact LeakLab with the leak-detector model, serial number, photographs of the existing internal leak and connection, and the required calibration documentation. Availability, compatibility, delivery destination and service scope will be confirmed for the specific request.
Specifications
| Product Label | New |
