Measuring Transformer, Tong Jaws; Connections; Information For The Measurement; Ac (Automatic Range Selection) - Testboy TV 216N Instrucciones De Empleo

Information for the measurement

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 to be the measured current flows, pay attention to proper closure
of the jaws and that there are no foreign bodies in the air gap located between the jaws

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 %.

AC (automatic range selection)

Measuring range Resolution Tolerance
60 A 0.01 A
± 3.0 % + 10 digit
600 A 0.1 A
Frequency response: 40-200 Hz
Maximum input current: 600 A AC
Minimum input current: 1.5 A AC

INRUSH measurement

In the measurement range A~, press the button "SEL", "INRUSH" appears on the display.
The display indicates "----" until the motor, or similar, is switched on.
The value is displayed and retained, this measurement is only carried out once.
After the measurement, keep the "SEL" button pressed, to change to the normal measurement
mode, by again pressing, returns to the inrush measurement.
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26 Testboy TV 216N