Table of Contents
Advertisement
1.888.610.7664
8-1 Measurement method
(1) Connect the test leads as the following figure shows.
- MODEL7260 to the LINE terminal
- MODEL7261A to the EARTH terminal
Red
(2) C onfirm that the circuit under test isn t energized, and measure voltage
with reference to 7. Voltage measurement.
(3) C onfirm the voltage value which can be applied to the circuit under test,
and then set the function switch to the desired range.
● T here is an empty range between 500 V and 1000 V ranges for safety
purpose. The instrument doesn t start a measurement even if the test
button is pressed while the function switch is set to this safety position.
● D iscontinuous warning buzzer sounds when the function switch is set
to 1000 V range.
● T o select 100 V range, set the function switch to 125 V/ 100 V
position, and then press the SELECT button 1 sec. or longer.
(4) C onnect the black earth test lead to the earth terminal of the circuit under
test. If a voltage of 30 V or higher exists in the circuit, the LCD backlight
blinks red and blinking live warning symbol
buzzer. While this warning function is activating , no resistance
measurement can be made even if the test button is pressed.
(5) P lace the tip of red test lead (line) to the circuit under test, and press the
test button or remote switch.
● M easurement time, elapsed time, is displayed on the LCD during
insulation resistance measurement: up to 99 min. 59 sec. by 1 sec.
Note: The time counter stops and freezes when it reaches to 99 min.
59 sec.; if the elapsed time exceeds 100 min.
̶ 21 ̶
www.calcert.com
15
10
20
5
25
0
30
Fig. 8-1
Black
appears with audible
sales@calcert.com
Advertisement
Table of Contents
