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Small Volume Helium Gas Leak Detector Min Rate 5E-13 Display 1E-13 To 1E-1

China KYKY TECHNOLOGY CO., LTD. certification
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Small Volume Helium Gas Leak Detector Min Rate 5E-13 Display 1E-13 To 1E-1


Large Image :  Small Volume Helium Gas Leak Detector Min Rate 5E-13 Display 1E-13 To 1E-1

Product Details:
Place of Origin: China
Brand Name: KYKY
Certification: CE
Model Number: ZQJ-3000
Payment & Shipping Terms:
Minimum Order Quantity: 1
Packaging Details: Wooden box for overseas shipment
Delivery Time: 6weeks
Payment Terms: T/T
Detailed Product Description
Display: 1E-13 To 1E-1 Pa•m3/s Smallest Detectable: 5E-13 Pa•m3/s
Maximum Inlet Pressure: 1800Pa Multiful Interface: Rs232/485, Digital I/O
High Light:

helium mass spectrometer


helium vacuum leak detector

Helium Leak Detector , ZQJ-3000 , Min rate 5*1E-13, Display 1E-13 to 1E-1

With nearly 50 years of vacuum leak detection technology experience, KYKY is the largest R&D and production base of HLD and has the independent intellectual property rights for vacuum leak detection system. The leak detectors and leak detection systems developed by KYKY provide advanced and effective leak detection solutions to aerospace, power electronics, air conditioning refrigeration, chemical metallurgy, medical equipment, semiconductor production and many other applications to meet the demands in various fields.


The ZQJ-3000 Helium Leak Detectors are microprocessor-controller leak detecting instruments. All the processes in the instrument are controlled automatically.



1. Easy operation--Small volume, light weight, compact structure, simple operation panel

2. Multiful interface--Rs232/485, Digital I/O, remote controller interface, External gauge interface

3. Powerful functions--Various test mode, capability of detecting H2. 3He, amd 4He, multiple menu setting

4. Reliable performance--High sensitivity, wide measurement range, high inlet pressure, fast response time

5. Reliable quality--Prolong the service life, resistance of yttrium oxide iridium filament



Type ZQJ-3000
Smallest Detectable Leak Rate(Pa•m3/s) 5×10-13
Leak Rate Display(Pa•m3/s) 10-13~10-1
Maximum Inlet Pressure(Pa) 1800
Response Time(s) ≤0.3
Run-up Time(min) <3
Power 230 VAC±10%/50 Hz
120V±10%/60 Hz,10A
Working Temperature and Relative humidity Working Temperature 10~35℃,realtive humidity ≤80%
L*W*H(mm) 550×460×304
Weight(kg) 44



Vacuum Method

In the vacuum method test gas is blown against the wall of the evacuated sample from the atmosphere side. It enters the sample at leaks and is fed to the leak detector.

The sample must be vacuum pressure-proof.

The sensitivity stages GROSS ---FINE---ULTRA are run through.

The detection limit is lower than in the sniffing method. The helium concentration at the leak must be known in order to quantify the leak. The state of equilibrium must be waited for.


Sniffing Method

In the sniffing method the test gas escaping from leaks in the sample into the atmosphere is detected.

The sample must withstand the applied test pressure.

In operation with the sniffing probe a constant gas flow is sucked in from the atmosphere. The helium proportion of the air (5.2 ppm) causes a leak rate display of approx. 1*10-6 mbar l/s which can be eliminated by the ZERO function.20 3 Description Operating Instructions, ikna88en1-01, 1605


To detect a leak, the sniffing probe is applied to the points of the sample under helium overpressure which are suspected of leaking. An increased leak rate value indicates an increased concentration of helium and therefore a leak. The higher the pressure and the helium concentration in the sample, the smaller the leaks which can be detected.

The sensitivity stages GROSS---FINE are run through.

The detection sensitivity and the quantifiability of the leak rate are less favourable than in the vacuum pressure leak detection.

Contact Details

Contact Person: sales

Tel: +8613810212935

Send your inquiry directly to us (0 / 3000)