Preparation for measurement, Functions, Before testing always check the following – B&K Precision 307A - Manual User Manual

Page 10

9.Preparation for Measurement

Before testing Always check the following.

At Power "ON", check that Bat. OK led lit. And check that there is
no visual damage to the Instrument or test leads.

Check the test Leads continuity
1. Connect the leads to the Instrument.
2. Zero the test leads while on the 3 ohm range..
3. This will indicate your that continuity of the test leads is ok.
4. Verify that the test leads insulation is in good condition.

10.1 Battery Check

Turn the function selector to Batt. Check. This
function has a load which draw about 205mA when
test is performed, and therefore it is doing a worst
case battery test.
Then, press the test button, the pointer should be in
the Bat. Good area. During the test, the bat. OK Led
(on line battery check) must lit if the pointer is in the
bat. Good area.

10. Functions

-8-

N-E

P-E

FOR CONTINUOUS

TESTING, PRESS AND TURN

LOCK

FOR Vac: DO NOT PRESS

PRESS TO TEST

Batt. Check

500W

250V/100MW

500V/200MW

1000V/400MW

INSULATION

CONTINUITY