Velleman DVM13MFC Bedienungsanleitung

DVM13MFC – MULTIFUNCTIONAL DIGITAL FREQUENCY COUNTER
1. Introduction & Features
To all residents of the European Union
Important environmental information about this product
This symbol on the device or the package indicates that disposal of the device after its lifecycle could harm
the environment.
Do not dispose of the unit (or batteries) as unsorted municipal waste; it should be taken to a specialized
company for recycling.
This device should be returned to your distributor or to a local recycling service.
Respect the local environmental rules.
If in doubt, contact your local waste disposal authorities.
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.
6. Do not operate this device in close proximity to explosives e.g. flammable gases or fumes, vapour or dust.
DVM13MFC
1 VELLEMAN