Repair and Maintenance of Oxygen Index Tester
malfunction the reason Approach The pipeline is not ventilated 1, N2 or O2 cylinder total valve, pressure relief valve is not open or the pressure is not enough 2, N2 or O2 regulator valve open in the end Open and adjust Reconditioning Flow control valve screw does not advance Screw thread Replace the screw The instrument has a loud sound after ventilation N2 or O2 regulator valve spring shift Adjustment Digital display can not reach fullness Sensor life exceeded Replace sensor Floor Mounted Tub Filler with Hand Shower with 360 Degree Swivel.The hoses come with a nylon-braided exterior that protects against chemical corrosion (commonly caused by detergent) and rusting. Easy operation single handle design allows flow rate and temperature control in single hand. Handheld Shower head and high arch 360 degree swivel bath tub faucet change in one second through diverting valve knob. Bathroom Tub Faucet,Clawfoot Tub Faucet,Jetted Freestanding Bathtub,Freestanding Tub Faucet HESHAN CAIZUN SANITRAYWARE CO.,LTD , https://www.caizunbathroom.com
Second, the instrument maintenance
1. If the instrument is not used for a long time, it is recommended to remove the oxygen sensor and put it into the refrigerator freezer to extend the life of the sensor (see step 3 for detailed removal procedures).
2. Please read the user's manual and oxygen index test related national standards before opening the instrument, and be familiar with the correct use of the oxygen index meter and the calculation of the oxygen index value.
3, the test sample, the remaining part of the well-preserved, so that the value of the instrument in the future comparison test to determine the stability of the instrument, if more than the original accuracy level, should consider replacing the oxygen concentration sensor.
Third, the replacement of oxygen sensor
1, cut off the power and air supply.
2, remove the screws on both sides of the panel, grab the "regulator" valve knob and pull it out.
3. Unplug the three-pin connector on the center of the back panel of the instrument, remove the oxygen sensor counterclockwise (the face is a pentagonal shape), replace it with a new sensor, and insert the plug and reinstall the panel.
4, can be used after correcting fullness.
Fourth, pay attention to matters
1, using the specified voltage, instrument power should have a ground wire.
2. When testing samples, some materials release toxic and harmful gases. It is recommended that the test should be conducted in a fume hood and be well-protected.
3. When using liquefied gas, natural gas, gas and other gas sources, the pipeline interface should not be leaky, and the aging of the ventilation pipe should be promptly replaced.
4, the operator can not leave the test site during the test.
5, computer-controlled equipment should prevent the invasion of the virus.
6, the laboratory equipped with fire fighting equipment.
7. Close all power and gas sources at the end of the test.