High precision vacuum calibration kit designed for technicians verifying sensor set-points from atmospheric pressure down to -0.95 bar with fine-tuning control.
The DM01 series provides a high-precision solution for technicians tasked with the critical verification of vacuum set-points within industrial control loops. When performing field validations or laboratory calibrations on vacuum switches and transmitters, the ability to achieve a stable and repeatable negative gauge pressure is paramount. This system utilizes the KHP35 series hand pump, which is specifically engineered to overcome the common struggle of “stair-stepping” pressure increments. By utilizing the integrated fine-adjustment volume controller, a technician can approach a specific trip point—such as a -0.8 bar alarm threshold—with granular sensitivity. This level of control is essential for identifying the exact moment of contact closure or signal change, allowing for the precise measurement of hysteresis and deadband characteristics that generic pumps often miss.
The accuracy of the verification process is anchored by the DM01 series digital gauge, which offers a 0.1% full-scale accuracy. For a calibration technician, this means the uncertainty budget remains tight even when working at the lower end of the vacuum scale. The use of interchangeable pressure sensor modules allows the kit to be optimized for specific ranges, ensuring that the resolution remains high where it is most needed. Furthermore, the DM01 series incorporates advanced data logging capabilities. Rather than relying on manual transcription, which is prone to human error, the internal storage captures high-resolution pressure data that can be exported via a USB interface. This creates a digital audit trail that is invaluable for facilities adhering to strict ISO quality standards or those requiring detailed certificates of calibration for regulatory compliance.
Practical application of this kit is frequently found in pharmaceutical vacuum drying ovens and semiconductor leak detection systems where maintaining a specific negative pressure is vital for process integrity. In these environments, the technician can connect the unit under test using the provided NPT or G thread adapters, pull a vacuum to the approximate required level using the KHP35 series stroke, and then use the precision dial to “dwell” at the set-point to observe for any sensor drift or leak-down. The rugged service case and traceable calibration certificate ensure that the equipment is ready for immediate use in professional service environments, providing a reliable secondary standard for verifying the primary sensors that keep complex automated systems running within their designed safety and performance parameters.
DM01 High Accuracy Vacuum Tester
- Pressure Sensor Modules: 0 to -1 bar (-14.5 psi) gauge
- Process Connection: G1/2 DIN3852 male
- Data Storage Type: Data Logging – DM01
- Digital Interface: USB Converter and PC Software
- Optional Extras:
- Service case
- Traceable calibration certificate
- KHP35 -0.95 to 35 bar calibration hand pump and test hose
- 1/4 NPT female adapter for unit under test
- 1/2 NPT female adapter for unit under test