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The AT-71030 Helium Mass Spectrometer Leak Detector has been newly upgraded, featuring an aviation-specific trolley with shock absorption and anti-collision design, as well as unique and convenient mobility and self-locking functions. It boasts excellent passability, high sensitivity, and user-friendly operation. The modular design facilitates easy maintenance, and core components are sourced from imported German and Japanese brands to ensure long-term stable and professional operation.
1.ZD230 Modular Design with Mobile Self-locking Aviation Trolley for Easy Movement and Fixation.
2.User-friendly Operation Software with Simple Icons and an Intuitive Interface for Easy Setup and Operation.
3.Positive/Negative Pressure Detection Modes, Switchable at Will.
4.Mass Spectrometry with 180° Non-uniform Magnetic Field and Fully Automated Operation for High Testing Accuracy; Dual Iridium Filaments, Switchable at Will.
5.Automatic Helium Peak Scanning, Calibration, and Range Switching.
6.R 232 Interface for Easy System Integration.
The product is widely used in industries such as new energy, vacuum technology, coating, new materials, valves, general machinery, and electronic devices, as well as in military research institutes.
| Indicator | Parameter |
| Minimum Detectable Leak Rate (Negative Pressure Mode) | 5 × 10-13Pa·m³/s |
| Minimum Detectable Leak Rate (Positive Pressure Mode) | 5 × 1 0-9 Pa·m³/s |
| Maximum Leak Detection Port Pressure | 1500 Pa |
| Startup Time | ≤ 3 Min |
| Response Time | ≤ 0.5 s |
| Display Range | 1 × 10-3~ 1 × 10-13Pa·m³/s |
| Pressure Unit | Pa |
| Leak Rate Unit | Pa·m³/s |
| Forepump Pumping Speed | 16 m³/h |
| Leak Detection Port Specification | DN 25 ISO-KF (KF2 5) |
| Power Supply | AC 220V ± 10%, 50 Hz |
| Maximum Power | 1000 W |
| Dimensions (Length × Width × Height) | 600 mm × 460 mm × 920 mm |
| Weight | 70 kg |
| Temperature | 5-40 ºC |
| Component Name | Brand/Model |
| Molecular Pump (Optional) | Leybold Turbovac 90 (Germany, Multi-port Composite) |
| Forepump | Leybold D16C Two-stage Oil Rotary Vane Pump (Germany , Pumping Speed: 16 m³/h) |
| Solenoid Valve | Baodi 0256 (Germany) |
| Amplifier | Imported AD Amplifier (LMC6041IN) |
| Vacuum Gauge | Leybold TTR91RN (Germany) |
| Standard Leak | -8 Order of Magnitude (with Third-party Calibration Certificate) |
| Ion Source | Dual Iridium Filaments (Surface Coated with Yttrium Oxide) |
| Leak Detection Method | Brief Description | Leak Detection Instructions | Remarks |
| Vacuum Method (Helium Spray Method) |
1.Connect the instrument to a properly grounded AC 220V/50Hz power supply.
2.Turn on the instrument power switch and wait for it to reach the standby state.
3.Connect the workpiece to the leak detector port using appropriate fixtures.
4.Press the "Start" button on the instrument panel to enter leak detection mode.
5.When the instrument's background value is below the (qualified) value and stable, spray helium onto the area to be tested using a prepared helium gas canister.
6.If the workpiece leaks, the instrument will emit an aud ible alarm or the display interface will turn red, indicating (unqualified); otherwise,
it is(qualified).
7.Press the "Stop" button on the panel to end the leak detection and remove the workpiece.
|
1.Vacuum spray helium leak detection;
2. High leak detection accuracy;
3.Qualitative only, not quantitative;
4.Less affected by the environment;
|
1. Before testing the workpiece, confirm the leak detection mode is set to "Vacuum Mode," set the alarm value (qualified value), and calibrate the instrument using a calibrated standard leak to avoid measurement errors. 2. Spray the gun from near to far (distance from the leak detector). 3. Spray the gun from top to bottom. |
| Sniffer Probe Method (Positive Pressure Method) |
1.Connect the instrument to a properly grounded AC 220V/50Hz power supply.
2.Charge the workpiece with positive pressure helium to the specified pressure.
3.Connect the sniffer probe to the leak detector.
4.Press the "Start" button on the panel to enter leak detection mode.
5.When the instrument's background is stable, use the sniffer probe to detect the area to be tested.
6. If the workpiece leaks, the helium inside will escape to the environment due to the pressure difference , and the sniffer probe will capture it, triggering the instrument alarm, indicating(unqualified); otherwise, it is (qualified). 7. Press the "Stop" button on the panel to end the leak detection and depressurize the workpiece.
|
1. Workpiece charged with helium (positive pressure), sniffer probe detection; 2. Lower leak detection accuracy; 3. Qualitative only, not quantitative; 4. More affected by the environment; 5. Large helium consumption. |
1. The helium concentration in the air is 5.2 ppm, which converts to a leak rate of approximately 5.0 × 10-7 Pa·m³/s. Before leak detection, confirm the instrument's leak detection mode is set to "Sniffer Probe Leak Detection," calibrate it using air calibration or a positive pressure leak, and set the alarm value (qualified value). 2. The minimum detectable sensitivity of the sniffer probe should not exceed 10-8Pa·m³/s. 3. Move the sniffer probe from bottom to top. 4. After detection, it is best not to discharge the helium at the detection site to avoid affecting subsequent tests. |
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