The working principle of the Volumetric air tightness testing instrument
There are two types of volume detection methods: direct pressure volume type and differential pressure volume type.
Ordinary direct pressure type and differential pressure type just fill the gas pressure is fixed, and the volume is not fixed, the product is large, the product is filled with more gas to reach the test pressure, and the product is small, the gas is less filled to the test pressure. These classes are mainly used to detect open products.
The direct pressure volumetric type and the differential pressure volumetric type are filled with a fixed gas pressure and a fixed volume. It is mainly used to detect fully sealed products, such as electric toothbrushes, beauty instruments, car cameras, motors, car tire pressure gauges, gastroscope capsules and other products.
Scope of application Volumetric air tightness testing instrument
Automotive industry: waterproof test of headlights, waterproof test of engine parts, vehicle cameras, antennas, etc.
Battery industry: waterproof test of lithium battery shell welding line, sealing test of terminal and shell, etc.
Home appliance industry: coffee machines, juicers, blenders, kettles and other products with waterproof requirements.
Smart wear: smart bracelets, watches, underwater alarms, waterproof detection, etc.
Electronic consumption: sports audio, bluetooth speakers, etc., epilator, electric brush, electric bath head, etc.
Military supplies: waterproof detection of walkie-talkies, hand-held walkie-talkies, vehicle-mounted walkie-talkies, three-proof mobile phones, etc.
Valve pipeline: the sealing of the valve, the permeability of the pipeline, the waterproofness of the joint, etc.
Parameters of Volumetric air tightness testing instrument
| Way of working | Volumetric |
| Pressure range | -85~0/-85～700Kpa optional |
| Precision | 0.2%F.S |
| Pressure adjustment accuracy | 0.2%F.S |
| Pressure unit | Kpa |
| Pressure adjustment method | Mechanical |
| Parameter group | 10sets |
| Time setting (s) | 999.9 |
| External control signal | 2 signal |
| I/O interface | Support |
| RS485 | Support |
| USB | Support |
| Data storage | 100000 |
| Language | CN/ENG |
| Gas source | Greater than the maximum test range |
| Suitable for products | Open / fully sealed structure |
| Detection method | External pressure test |
| Test medium | Test gas |
| Resolution | 1pa |
| Input voltage | AC220V 50HZ |
| Physical dimension | 470mmx290mmx280mm |
