Bk-precision 308A - Manual Bedienungsanleitung PDF herunterladen (Seite 7)

MEASURING METHODS

Operation caution

Observe all safety precautions when the FUNCTION

switch is set to either the 200M (250,500V) or the

2000M (1000V) position . Connect the meter test

leads to the circuit under test before operating the

TEST switch . Do not touch the clip ends of the test

leads when the TEST switch is pressed .

Some electrical equipment , especially cables , may

retain an electrical charge when disconnected from

the line . It is good practice to discharge such

equipment with grounding straps , or other suitable

devices , before touching or making connections .

The meter automatically discharge the test circuits

when the spring loaded TEST switch is released .

Important

Remove all power to the circuit under test when

making resistance measurements . If any voltage is

present in the test circuit the red on the meter scale

plate will light .

Immediately disconnect test leads and turn off

power to test circuit .

— Function switch :

The FUNCTION switch is used to select the range ,

or function desired .

— Test switch :

The TEST switch is normally OFF , spring loaded ,

momentary action switch which "turn on" the meter.

the momentary action is a safety feature .

The test voltage generated by the meter is

automatically discharged when the TEST switch is

released .

FEATURES

— 3 1/2 Digit Insulation Tester .

— 68mm(2.677")x34mm(1.33") large LCD display .

— Three Insulation test voltage 250V,500V,1000V .

— External voltage warning indication

— Automatic circuit discharge .

— Test Insulation at rated voltage into a 1 mA load .

— 200 mA continuity short circuit test current .

— AC voltage measurement .

— Fuse protection .

— Meet IEC 1010 CAT. , BS 16 edition .

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