Velleman DVM13MFC Mode D'emploi

DVM13MFC – Multifunctional Digital Frequency Counter
1. Introduction & Features
Thank you for buying the DVM13MFC ! Please read the manual carefully before bringing this
device into service.
This manual contains a number of safety prescriptions that must be followed to the letter. Read
these instructions before using the device!!
The DVM13MFC is a multifunctional digital counter. It is controlled by an 8-bit microcontroller
and is equipped with an eight-digit LED display. The device is capable of measuring frequencies
and periods, calculates totals and is equipped with a self-check function. The device also has a
10MHz OSC.OUT output and the input signal can be attenuated.
The device can be powered by either 110Vac or 220Vac. This device has been designed
according to IEC1010-1 concerning safety requirements.
2. Unpacking & Inspection
The packaging should contain :
• a multifunctional digital counter
• BNC to BNC test lead, 50Ω, 100cm
• power cord
• user manual
Please contact your distributor if any of these items are missing or damaged.
3. Safety Prescriptions
Injury or death can occur even with low voltages and low current. It is extremely important that
you read these safety instructions before using your device. Follow all safety and operating
procedures as described in this manual.
1. Exercise extreme caution when : measuring voltages > 20V, measuring current > 10mA,
measuring AC power lines with inductive loads, measuring AC power lines during electrical
storms.
2. Always inspect your device, test lead and accessories for damage before you use them. Do
not attempt to perform measurements in case of damage e.g. damaged test lead, cracked
case, illegible display, etc.
3. Never ground yourself when taking electrical measurements. Do not touch exposed metal
pipes that might be at ground potential. Keep your body isolated from the ground by using dry
clothing : use rubber mats, rubber shoes or approved insulating materials.
4. Never touch exposed wiring, connections, test probe tips or live circuits during your
measurements.
5. Always replace the fuse with an identical one or one with identical specifications. Disconnect
the power cord and the test lead and cut off the input signal before replacing the fuse in order
to avoid all risks of electroshocks.
DVM13MFC 1 VELLEMAN