Intended Use - VOLTCRAFT VC-420 Bedienungsanleitung

3. INTENDED USE

- Measuring and displaying electric parameters in the range of measuring category CAT III for up to 1000 V or
CAT IV for up to 600 V against earth potential, pursuant to EN 61010-1 and all lower categories.
- Measurement of direct and alternating voltages up to 1000 V
- Measurement of direct and alternating current up to 10 A or 20 A, short term (30 seconds)
- Frequency measurement up to 10 MHz (electronic) or up to 400 Hz (electrical, as a subfunction)
- Capacity measurement up to 4000 µF
- Measurement of resistances up to 60 MΩ
- Measurement of temperatures from -45 up to +750 °C
- Continuity test (<100 Ω acoustic)
- Diode test
The measurement functions are selected using the dial switch. Automatic measurement range selection (autorange)
is active in all measurement ranges (except for diode test and continuity test).
In the AC voltage and AC current measurement range, true effective measured value (true root mean square; True
RMS) up to a frequency of 1 kHz.
Polarity is automatically indicated with the prefix (-) if the measured values are negative.
The two current measuring inputs are secured against overload with ceramic high-performance fuses. The voltage
in the measuring circuit must not exceed 1000 V.
The multimeter is operated with a conventional 9 V block battery (type 6F22, NEDA 1604 or same build). The device
must only be operated with the specified battery type. A rechargeable battery should not be used due to the lower
capacity.
Automatic deactivation switches off the device after approx. 15 minutes when no button has been pushed on the
device. This prevents premature discharging of the battery. This function can be deactivated.
The multimeter must not be operated when it is open, i.e. with an open battery compartment or when the battery
compartment lid is missing.
Due to its build, the device corresponds to protection type IP67 and is dust- and water-tight. The meter can be
submersed for up to 30 minutes to a depth of max. 1 metre in clean, aqueous solution. The inserted measuring lines
and the enclosed sealing plugs with special lamellas at the plugs prevent contamination of the measuring jacks.
They should remain plugged in at all times. The meter must not be used when submersed, wet or moist. Protection
type IP67 only serves to protect the device. The meter swims on the surface and does not submerge.
Measuring in potentially explosive areas (Ex) or damp rooms or under unfavourable ambient conditions is not
permitted. Unfavourable ambient conditions are: Moisture or high humidity, dust and flammable gases, fumes or
solvents, thunderstorms or thunderstorm conditions like strong electrostatic fields, etc.
For safety reasons, only use measuring lines or accessories which are adjusted to the specifications of the multim-
eter when measuring. We recommend using sealing measuring lines.
The meter must only be operated by persons who are familiar with the required provisions for the measurement and
the possible dangers. Use of personal protection equipment is recommended.
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