© Copyright Siborg Systems Inc.
16
test voltage toggles between 1.3 and 0.1 Volts. The applied
voltage is indicated by the pulse height in the top row of the
screen.
These modes are used to measure DC resistance, recommended
for in-circuit detection of resistors. It also allows measuring the
selected shunt resistor on the board that could be later used for
current measurements. In order to set the shunt resistor value,
push the joystick down until 2 beeps while measuring the shunt
resistor.
7.4 Voltage Mode
This mode is to measure DC and AC voltage. The device
automatically detects the polarity of the DC voltage. The upper
line of the display shows the values
of the RMS voltage that is equal to
the DC voltage for a DC bias. The
second line shows the peak-to-
peak voltage range which is zero for a DC bias.
•
Push Joystick up for 1 beep to toggle the current/voltage
measurement mode.
In this mode, the voltage value measured on the shunt resistor is
converted into a current and displayed on the screen. In the
upper line of the screen the value of shunt resistance is
displayed, taking into account the input resistance of the device,
and the lower line shows the value of the current. To enter the
resistance of the shunt into the device memory, go to the
RDC+LED mode and select the 1.3 V mode. With the circuit de-
energized, connect the shunt resistor and push the joystick
down, hold for 2 beeps.
•
Push the joystick to the left for 1 beep to turn on and off the
capture mode of the maximum and minimum voltage values.
In this mode the device continuously records and displays
minimum and maximum values of the voltage/current as well
as the instant value.
Summary of Contents for LCR-Reader MPA
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