Major tech MT700 사용 설명서 - 페이지 5

{카테고리_이름} Major tech MT700에 대한 사용 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. Major tech MT700 16 페이지. Voltage & current tester

This instrument may only be used within the ranges specified and

within low voltage systems up to 1000V.

Prior to usage ensure perfect instrument function (e.g. on known

voltage source).

The voltage detector is not to be used, if the battery cover is open.

The voltage detectors have to be kept dry and clean.

The voltage testers may no longer be used if one or several functions

fail or if no functionality is indicated.

Do not use this instrument under damp conditions.

Accurate measurements within a temperature range of -10°C up to

55°C, at relative humidity question <85%.

If the operator's safety cannot be guaranteed, the instrument must be

removed from service and sent in for repair.

1.4. Safety Precautions before use

• Meter shows obvious damage.

• Test Leads are damaged or insulation is open.

• Measurements are not correct.

All relevant statutory regulations must be adhered to when using this

instrument.

• Depending on the internal impedance of the voltage detector and

presence of interference voltage there could be a different capability

of indicating the presence or absence of operating voltage.

• A voltage detector of relatively low internal impedance, compared to

the reference value of 100kΩ, will not indicate all interference

voltages having an original voltage value above the ELV level; When

in contact with the parts to be tested, the voltage detector may

temporarily discharge the interference voltage to a level below the

ELV, but it will return to the original value when the voltage detector

is removed.

• When the indication "Voltage Present" does not appear, it is highly

recommended installing earthing equipment before proceeding with

testing and maintenance.

• A voltage detector of relatively high internal impedance, compared to

the reference value of 100kΩ, may not clearly indicate the absence of

operating voltage in the presence of interference voltage.