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Chapter 1 
Meter Safety Standards 
 

This style of digital multimeter is designed and manufactured according to the safety requirements 
set out by the IEC61010-1 standards for electronic test instruments and the hand-hold digital 
multimeters. Its design and manufacture is strictly based on the provisions in the 1000V CATIII of 
IEC6060-1 and the Stipulation of 2-Pollution Grade. 
The meter conforms to the European Union’s following requirements:89/336/EEC 
(EMC Electromagnetic Compatibility ),73/23/EEC(LVD Low Voltage Protection)and 93/68/EEC  
(CE Mark). 

 

Warning 

 

Before use of the meter firstly check up if there is any crack on the outer shell or if it lacks any 

plastic part, and check up whether the testing line is damaged or has any exposed metal.  
The meter can be used only if no any insulating problem be found. 

 

Carefully read the operating methods and safety prompts in this manual. Using it not based on the 

methods specified in this manual may cause the meter damaged.  

 

Non-normal meter must not be used. It should be sent for repairing. 

 

The meter must not be used in an environment with combustible gases, steam or dust pollution. 

 

It should be careful to work when measuring votage higher than 30Vac(effective value)or 50Vdc 

for such voltage having the risk of shock. Avoid the body directly touching ground or any metal 
substance in which there may be ground  

 

potential during measuring. The body should be kept insulated from ground with dry insulating 

shoes, insulating pads or insulating clothes. 

 

When performing measurement with a test probe your fingers should be put behind a finger-

protector.  

 

Must not try to measure a voltage higher than 1000VAC or 1000VDC,the meter may be damaged 

and the operator’s safety may be threatened if the limit for voltage measurement be exceeded. 

 

When the symbol for electric insufficiency appearing on the display screen it is necessary to 

replace the batteries for avoiding the possible shock or injury resulted in by erroneous reading. 

 

In case of replacing batteries, it is necessary firstly to pull out the testing line. AA batteries should 

be used and they should be put into the meter with the proper polarity. 

 

Must not make any voltage measurement when the testing line being inserting into the current 

hole. 

 

Repair and calibration of the meter must be carried out by experienced professionals, 

unprofessionals should not repair and calibrate the meter by themselves. 
 

Limited Guarantee and the Liability Scope 

 

This company will undertake repairs freely for any quality problem of the meter which if should be 

found within 18 months from the date at which it was bought, but which not including replacement 
of fuse and batteries as well as any damage caused by negligence, wrong use, pollution, change of 
circuit and non-normal use. 

 

For maintenance beyond the 18-month guarantee period, the company will charge a certain repair 

fee and materials cost. 
 
 
 
 

Summary of Contents for AX-TI220

Page 1: ...AX TI220 OPERATION MANUAL...

Page 2: ...ere may be ground potential during measuring The body should be kept insulated from ground with dry insulating shoes insulating pads or insulating clothes When performing measurement with a test probe...

Page 3: ...mance reaching 1000V CAT III Explanation on Front Panel The front panel is shown as in Figure 2 1 explanation being as follows Figure 2 1 1 V Hz end It is the input end for all measurement functions e...

Page 4: ...key the meter will enter the linear frequency measurement state At this time what being measured is the frequency of voltage or current By pressing this key again to exit the linear frequency measurem...

Page 5: ...easurement unit being or F of temperature or F or nF of Capacitance mAV Indicating the measurement unit being A mA of current or V and mV of voltage KHz Indicating the measurement unit being KHz and H...

Page 6: ...ng the range of excitation voltage when performing the insulation resistance measurement 15 TEST Indicating it is now in the insulation resistance measurement state 16 Indication to low voltage of the...

Page 7: ...sistance measurement state press the TEST key to start measuring and then press the TEST key again to stop measuring The measurement range of the insulation resistance is 50K 2G Maximum minimum value...

Page 8: ...y 0 50 Storage temperature 20 60 relative humidity 80 Altitude operation less than 2000m Storage less than 10000m Volume 200mm X 100mm X 40mm Weight 560g Range and Accuracy The below listed accuracies...

Page 9: ...0 8 4 102 V A 5000 A 1 A 0 8 4 50mA 10 A 0 8 4 1 5mV mA 500mA 0 1mA 0 8 4 Notes above accuracies can be guaranteed within 10 100 of the full range DC Current Range Resolution Accuracy Voltage Drop 500...

Page 10: ...nF 2 10 50 F 10nF 2 10 500 F 0 1 F 2 10 1000 F 1 F 3 10 Notes above accuracies for film capacitor or better can be guaranteed within the full range Diode Range Resolution Accuracy 2 5V 1mV 1 5 Notes t...

Page 11: ...1000V 400V 5000 A 1mA 500mA 100mA Notes Low voltage or low frequency would lower the accuracy Duty Ratio Frequency Range Duty Ratio Range Resolution Accuracy 5Hz 500KHz 5 95 0 01 0 02 Insulation Resis...

Page 12: ...in the batteries as the polarity specified on the shell of the meter Put the cover as its origin The meter must not be used until the cover of batteries being put properly and locked in Replacement o...

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