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| Question | Answer |
 | |
| 1.The pointer does not deflect.(=Unable to measure.) | Check the continuity of test leads.If there is a break, replace the faulty test lead.How to check: Set to the resistance range and short the test leads. |
| 2.Unable to measure the resistance. | Check the battery voltage. If the voltage is low, replace the batteries.Change it to a new battery. |
| 3.The readings fluctuate when measuring current. | Check if the jaws are closed properly. If no, close the jaws properly.Check if an object stick to the jaw tips.If yes, remove the oject from the jaw tips. |
| 4.The transformer jaws beat when measuring large current. | This is normal condition. |
| 5.The pointer moves abnormally. (For Analog Only) | The cover over the pointer may be electrized. Wipe the cover with the cloth or coat the cover with an anti-electrostatic agent or the detergent diluted with water. |
| 6.The pointer does not move to zero even by the zero ohm adjustment knob. (For Analog Only) | Check the battery voltage. If the voltage is low, change it to a new battery.The cover over the pointer may be electrized. Wipe the cover with the cloth or apply the antistatic additives or the detergent diluted with water. |
| 7.When the power is turned on, nothing is displayed in the LCD. (For Digital Only) | Check if the batteries are set appropriately.Set the batteries propoerly.Check if the battery is exhausted. If yes, replace with new batteries. |
| 8.When the range is set to DC voltage, the readings vary although measuring nothing. (For Digital Only) | This is normal condition.DC value varies by the influence of noise. |
| 9.The readings remain displayed in the LCD. (For Digital Only) | Check if the data hold switch remains on. Turn off the data hold switch. Check if the peak hold switch remains on.Turn off the peak hold switch. |
| If your tester still has a problem even after checking these points, please email us your detailed problems,Our engineering team will help you. |