LISUN HVR-LS Horizontal Vertical Flame Tester – After-sales Frequently Asked Questions (FAQ)

This HVR-LS Horizontal Vertical Flame Test Chamber meets the requirements of ANSI/UL94, IEC60695-11-3, IEC60695-11-4, IEC60695-11-10, IEC695-2-2 , GB- 4943, GB/T5169.15, GB/T5169.16, GB/T5169.17, GBT5169.22 Standard.

What’s use of Horizontal & Vertical Flame Test Chamber?
It is used to test the appliances and plastic materials parts of electrical equipment for the horizontal, vertical flammability test. The product tank shell is irony spray, and configured a transparent viewing window, the digital meter shows the burning time, afterflame time, afterglow time, this device has beautiful appearance, is easy to use and has reliable performance.

Q1: When adjusting the gas flow, the pressure gauge has no data.

Pressure gauge

A1: The general standard stipulates that the purity of methane gas used should be 98%. The outlet pressure of the gas supply cylinder needs to be adjusted between 0.5 and 1bar. The pressure gauge on the HVR-LS chamber will have a data. If the purity of the methane gas used is low, or the outlet pressure of the gas supply cylinder is not high, the pressure gauge on the HVR-LS chamber has no data.

Q2: After putting water into the U-shaped pipe, the back pressure cannot be adjusted.

Back pressure

A2: First, make sure that the gas used meets the standard requirements. If it does not meet the requirements, the gas pressure is insufficient and the back pressure cannot be adjusted.
When shipping, the hose connected to the U-shaped tube will be temporarily fixed with a cable tie. When using it, you need to remove the corresponding cable tie. If you are not sure which one it is, please take a photo and send it to us for confirmation. You may also need to open the left panel to confirm whether the hose inside also has a cable tie that needs to be removed.

Left panel

Q3: The burner cannot be ignited automatically.
A3: During the transportation or handling of equipment, the position of igniter and burner may be moved. Please adjust their positions and try it again.

Q4: The temperature rise time error is large.
A4: First, confirm that the purity of the gas used meets the standard requirements.
Secondly, please adjust the positions of  the copper and burner according to the standard.

Positions of the copper and burner

When doing temperature rise test or testing, please close the door of the chamber to prevent excessive air flow from affecting the temperature rise or test results.

Q5: How to conduct continuous testing.
A5: The default value of the number of burns in the figure below is 1. If you need to do a continuous combustion test, modify it to a value greater than 1 and less than or equal to 5 according to the number of times required. During the test, the after-flame time and after-glow time need to be recorded for each flame test.

Number of burns

After the test is completed, all test data can be viewed in the test record.

Test records

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator Guns, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

Please feel free to contact us if you need any support.
Tech Dep: Service@Lisungroup.com, Cell/WhatsApp:+8615317907381
Sales Dep: Sales@Lisungroup.com, Cell/WhatsApp:+8618117273997