DVM1190 GB
1
DVM1190 – DIGITAL MULTIMETER
1. Introduction
Thank you for buying the DVM1190. This digital multimeter has a large LCD, a data-hold function and a backlight.
The device uses a very practical safety mechanism that keeps the user from connecting measuring leads to the
wrong jacks It is ideal for use in open air, workshops and schools and for home and hobby applications.
2. Safety
The meter complies with the standards IEC-1010-1, CAT.II 1000V and CAT. III 600V overvoltage.
Respect the following safety instructions to ensure maximum personal safety and to keep the device itself in good
working order :
•
Protect yourself against electroshocks.
•
Do not use this device for any other application than those described in this manual.
•
Do not use the device around explosive gases, vapour or dust.
•
Disconnect the circuit you wish to test and discharge all capacitors before measuring resistance, continuity,
diodes or capacity.
•
Measure a known voltage to verify the meter's operation. Have the device serviced if the measurement of that
known voltage doesn't yield the expected result.
•
Connect the black test lead with the COM jack first and then connect the red test lead with the jack of your
choice; always disconnect the red test lead and then the black one.
•
For current measurements you should check the meter's fuse and turn off the power to the circuit under test
before connecting the meter to the circuit.
•
This device comes with a number of safety mechanisms: a varistor protects the
Ω
and V connection against
transients > 1000V. A PTC resistor protects the device against overvoltages up to 1000V during resistance,
capacity, temperature, continuity and diode measurements.
•
This meter's V
Ω
, µA/mA and A connections are protected against the faulty connection of test leads. The jacks
that can't be used for the selected function are closed off. The selector closes off all jacks that cannot be used
with the function currently selected. The selector is blocked when it encounters a function that is incompatible with
the selected jack. Remove the red test lead first and install a new range or function.
•
Make sure the device was not damaged in transit.
•
Make sure the insulation of the test leads is not damaged and/or the wire itself is not exposed.
•
Full compliance with safety standards can only be guaranteed if the device is used with the supplied test leads. If
necessary, they should be replaced with identical leads or leads with identical electric ratings. All test leads
should be in good working order.
•
Never exceed the specified limit values for the various measurement ranges.
•
Do not touch unused terminals when the meter is connected to a circuit.
•
Place the range selector switch in the highest position if the value to be measured is unknown beforehand.
•
Do not measure voltages > 1000V above earth ground in Cat. II installations or 600V in Cat. III installations.
•
The REL
∆
symbol is displayed when the relative mode is activated. Beware of dangerous voltages.
•
Exercise extreme caution when working with voltages in excess of 60VDC or 30Vrms AC. Keep your fingers
behind the probe barriers while using the device.
•
Do not connect the leads to a voltage source while the function switch is in one of the following modes : current,
resistance, capacitance, inductance, temperature, frequency, diode, transistor or continuity.
•
Disconnect all test leads from the circuit to be tested prior to selecting a different function or range.
•
When performing measurements on TV's or switching power circuits, the user should keep in mind that voltage
surges may occur at test points. These surges may damage the meter.
