1. Fully discharge the tested object with discharge rod before starting up, (the discharge rod using method is: first discharge with the current-limiting discharge end, then ground terminal). Ultra low frequency connection method with two booster:When using the booster I alone (test voltage is 30 KV or less), instrument control output I must be connected to booster I, don't connect control output II. When the booster I and booster II are used in series (test voltage is 80 KV or less), instrument control output I must be connected to booster I, and instrument control output II must be connected to booster II, absolutely not inversely connection! Otherwise the instrument or tested object will be damaged.

2. Please use the STOP button and discharge by rod then shut down the power if you need to discontinue the machines which in the high pressure conditions.Otherwise it will damage the instrument!

3. Please operation it according to the screen instructions.

4. It is a normal phenomenon to see small amount of oil spill after boosting the pressure because the insulating oil in the booster is full, besides, it will not affect your use.

5. When carrying out 10KV cable test, one-phase test is strongly suggested. The voltage shall be 18KV and the frequency shall be 0.1Hz、0.05Hz、0.02Hz. The manual said load capacity is the theoretical value, the scene 10KV cable length can reach 3-8 km.

6. When carrying out 35KV cable test, one-phase test is strongly suggested. Voltage is set to 60KV (general requirements)-78KV (according to the rules needed) and the frequency is set to 0.1Hz, 0.05Hz, and 0.02Hz. The manual said load capacity is the theoretical value, the scene 35KV cable length can reach 3-5 km.

7. In case the cable is too short(less than 500 meters), the capacitance of the test object is smaller than 0.1μF and the pressure cannot be normally boosted, please connect 0.1μF high-voltage capacitance in parallel way.

8. Keep high-voltage terminals nylon spin by the above numbers to the corresponding nylon seat, high-voltage lines to ensure good contact , no contact is good , it will cause a discharge , burned the high side . When nylon terminals tightened, pay attention to the intensity, excessive tightening may damage the nylon terminals.

9. If it is equipped with two booster ultra low frequency:When the test voltage is 30 KV or less, at this point it needs booster I to boost only, not connecting booster II. Booster number can also be set to I+II, at this point booster I and II boost in series; When test voltage is more than 30 KV, booster I and II must be used in series, see operating instructions in instruction book for connecting methods.

10. Laboratory examination timing, because DC voltage divider sampling speed is very slow, need to see more than ten cycle, in order to see the peak positive and negative voltage, the peak is the actual output voltage value.

11. Control output line connected to the booster side air plugs need to be rotated downward pressure to pull out!

12. Recommend the use of AC power supply of 220V: if you have to use a generator to supply power, because the 0.1Hz ultra low frequency is based on the power input frequency modulation, have higher requirements, to the generator requirements are: frequency 50Hz, voltage 220V + 5%, power is greater than 5KW, the special requirements of the generator output frequency stability, frequency changes with the load (the best use of digital frequency conversion generator), and not less than the resistive 800W load at the output end of the generator are connected with a power (such as electric stove etc.), in order to stabilize the generator speed, if the frequency is not stable, certainly not normal booster. In the whole process of increasing pressure, resistance load must use of continuous work, cannot use will automatically cut off the load resistance (such as electric kettle, electric furnace, temperature control switch after the water is boiling or temperature is reached, will be cut off automatically load), otherwise will seriously damage the instrument!!!

13. When turning on the power supply lamp does not light or no screen display, the insurance tube may be burned, for a safety tube is good, we are equipped with 10 insurance tube standby.

Warning: in the cable voltage withstand test, must be the core wire and the insulating layer of the physical separation, not with the other items covered in the above, otherwise it will cause the high voltage discharge, damage the instrument!!!