Back Panel Description - Velleman DVM13MFC Mode D'emploi

11. A INPUT
12. B INPUT
13. Display
8-digit LED
Gate Indicator
OFL Indicator
1300MHz Indicator : the indicator is lit when the 1300MHz range is selected
100MHz Indicator : the indicator is lit when the 100MHz range is selected
10MHz Indicator
KHz Indicator
MHz Indicator
µS Indicator

5. Back Panel Description

1. Power Input with Fuse
2. Select the power supply : The device can be powered by either 110Vac or 220Vac.
3. OSC.OUT
4. GND Terminal
DVM13MFC
: BNC input connector for Channel A. Provide a signal to input A to
measure frequencies from 10Hz to100MHz and also periods and
totals.
: BNC input connector for Channel B. Provide a signal to input B to
measure frequencies from 100MHz~1300MHz.
: displays the measured value
: displays the opened or closed state of the gate. The indicator
lights up when the gate is open.
: indicator comes on in case of overflow
: the indicator is lit when the 10MHz range is selected
: indicates the unit of frequency
: indicates the unit of frequency
: indicates the unit of period
: Check whether the power source is compatible with the power
requirements of the device in order to protect the device from
damage and the user from injury. Only then should you connect
the power cable and activate the device.
Disconnect the power cable, remove the test leads and cut off the
input signal to avoid electroshocks when you are replacing the
fuse. Always replace the old fuse with an identical one or one with
the same specifications.
: This is the output connector for the oscillator. This connector
provides a 10MHz signal and may be used as a reference signal
for another frequency counter. Always respect the output
impedance of 50Ω. when using the output signal (10MHz).
4 VELLEMAN