By hvhipot 
The closed flash point tester under HV Hipot Electric Co., Ltd. power can help many power workers conduct various power tests more conveniently.
1. Instrument flash point detection failed or missed detection. The flash point detector (flash point sensor) is likely not cleaned regularly because there is a layer of oily impurities attached to the flash point detector, which affects the detection sensitivity of the detector. Therefore, please always use a lint free cloth or paper dipped in petroleum ether or gasoline to gently wipe the detector clean (the flash point detector is located at the ignition port under the closed cup lid).
2. The instrument agitator does not stir. It may be due to blockage of the mixing blade, damage to the motor, or aging of the mixing motor circuit. Check the stirring motor circuit inside the lifting arm of the low-temperature closed flash point tester. If the circuit is intact, replace the mixing motor.
3. The ignition wire does not light up. Check the ignition wire circuit, check if the ignition wire is disconnected, and check if the ignition wire is loose. If the ignition wire is loose and has poor contact, use a small screwdriver to tighten the two small screws of the ignition head. Replacing the ignition wire indicates that its lifespan has expired.
4. The high testing error of the low-temperature closed flash point tester may be caused by insufficient brightness (heat) of the ignition line, as a layer of smoke impurities or some impurities in the sample vapor will adhere to the ignition line for a period of time. Long term (based on the sample). The degree of adhesion varies, so it is necessary to soak the ignition wire in carbon tetrachloride solution overnight or replace it directly.