


DP3185B Air Leakage Tester
DP3185B Single-channel Air Leakage Tester, 800kPa differential pressure tester for EV & battery sealing inspection.
DP3185B Air Leakage Tester
DP3185B Air Leakage Tester belongs to the DP3185B series, an air tightness tester specially developed for the new energy vehicle industry. It adopts a multi-channel differential pressure design, featuring low susceptibility to external interference, high test accuracy and outstanding long-term stability. Equipped with a color touchscreen, it supports parameter configuration, test data storage and programmable test pressure setup. PC and PLC communication interfaces are available for system integration.
DP3185B is a differential pressure air tightness tester for air tightness inspection of various components and finished products. It enhances leak detection performance and enables automated test station operation. This instrument integrates a high-sensitivity differential pressure sensor and thermal-insensitive pneumatic valves. Automatic self-checks on pneumatic valve status and sensor sensitivity run in every test cycle. Its built-in self-test circuit delivers reliable functionality and safety protection. Standard error calibration, setting and error reduction functions shorten test time and boost testing capacity. Suitable for a wide variety of test workpieces, it can accurately display test pressure, differential pressure and leakage rate.
DP3185B Tester Technical Features
- Test pressure programmable
- 5.4 inch touch screen, Chinese/English operation interface
- The waveform graph is displayed to facilitate the analysis of the inspection process
- The differential pressure resolution is 0.1Pa, and high accuracy
- Multi-channel parameterization and storage
- 8 channels of IO control signals, convenient for PLC docking
- Single-channel and 4-channel testing options for efficient multi-station testing
- It has a manual test mode and an automatic test mode
- External interface RS232/LAN
- 10,000 sets of test data can be saved, and test results can be queried by date
- It has rich data statistics and analysis functions
- It has the function of power-off memory protection
- Standard test pressure 10~800 kPa (negative pressure optional)
DP3185B Air Tightness Applications
- Air tightness test for energy storage battery cooling tubes
- Air tightness test for energy storage battery housings
- IP67 / IP68 waterproof test for EV charging guns and PDUs
- Waterproof & air tightness test for automotive wiring harnesses and waterproof connectors
- Air tightness test for high-voltage cables and harnesses
DP3185B Tester Specifications
| Model | DP3185B | |
| Test channel no. | single channel | |
| Differential pressure test | Minimum display | standard: 0.1Pa |
| sensor range | standard: ±2000 Pa | |
| Sensor pressure | standard: ± 1.5 Mpa | |
| Display accuracy | ±5%rdg. ±0.05%f.s. | |
| Direct pressure test | Minimum display | standard: 0.1kPa |
| Sensor pressure | 1.5 Mpa | |
| Test pressure | 10k- 800k Pa | |
| Display accuracy | ±5%rdg. ±2% f.s. | |
| Leakage rate setting | Leakage rate unit setting | Pa/min Pa/s |
| The upper limit of leakage | 0~999.9Pa/mine | |
| Time | Setting range | 0~999.9s |
| Resolution | 0.1s | |
| Power supply | AC100~240V ± 10%; Frequency: 50/60Hz | |
| Pressure source | Use high flow clean air regulated to a pressure range of 900k~1.3 MPa | |
| Pilot pressure | using clean air regulated to a pressure range of 900k~1.3 MPa | |
| Pipe connection diameter | (test pressure source, test sample pipe, standard sample pipe) 6mm nylon pipe (drive pressure) 8mm quick plug joint (connect drive pressure source with 8mm outer diameter nylon pipe) | |
| Control I/O interface | open collector specification interface and relay output | |
| Communication | RS232/LAN | |
| Environmental temperature and humidity | usage temperature of 5-40 ° C, storage temperature -20~70C; below 80% RH, but without condensation | |
| USB | Using USB to copy measurement data | |
| Host size | 417mm(L)*281mm(w)*197mm(H) | |
| Standard assembly (back) | air filter for driving pressure | |