Testboy TV 215N, Руководство по эксплуатации

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Information for the measurement
22 Testboy
®
TV 215N
SEL button
To change between different functions e.g.

, continuity,
A momentary peep tone confirms pressing the button.
MAX button
Press the MAX once or more times to display the maximum value measured.
RAN button
Press the button to switch between Auto range and manual range switching.
HOLD button
Press the HOLD button to freeze the value displayed at present.
Press and hold the B.L./HOLD button to switch on the background lighting.
Setting on the current range also switches on the lighting at the measurement point.
Measuring transformer, tong jaws
Record the current flowing through the conductor.
Observe the marks "+" and "-" on the flow jaws to determine the direction of current
(only DC measurements).
Enclose the conductor through the current flows to be measured, ensure the full closure of the
jaws and that there are no foreign bodies in the air gap located between the jaw connections.
Connections
Input : Input for accepting the red test lead for voltage, resistance and throughflow
measurements.
COM : Common input for accepting the black test lead for voltage, resistance and throughflow
measurements.
Information for the measurement
To obtain the most accurate measurement possible, place the cable between the tong jaws as far
as possible in the intersection of the marks.
If the position of the cable is not accurate within the tongs, the measurement error is a maximum of 1.5 %.
Accuracy:
 (% of the read-out value + number of digits) at 18° to 28 °C (64° to 74°F) and
rel. humidity < 75 %.