DVM1090 GB
1
DVM1090 – DIGITAL MULTIMETER
1. Introduction & Safety Prescriptions
Thank you for buying the DVM1090. This digital multimeter has a large LCD, a data-hold function and a backlight. It
is ideal for use in open air, workshops and schools and for home and hobby applications.
2. Safety
The meter was designed according to IEC-1010 concerning the safety requirements for electronic measuring
instruments with an overvoltage category (CAT II) and pollution 2.
Respect the following safety instructions to ensure maximum personal safety and to keep the device itself in good
working order :
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Protect yourself against electroshocks.
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Do not use this device for any other application than those described in this manual.
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Make sure the device was not damaged in transit.
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Make sure the insulation of the test leads is not damaged and/or the wire itself is not exposed.
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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.
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Never exceed the specified limit values for the various measurement ranges.
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Do not touch unused terminals when the meter is connected to a circuit.
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Place the range selector switch in the highest position if the value to be measured is unknown beforehand.
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Do not measure voltages > 1000V above earth ground.
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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.
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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.
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Disconnect all test leads from the circuit to be tested prior to selecting a different function or range.
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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.
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Never perform resistance, capacitance, inductance, diode and continuity measurements on live circuits.
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Never perform capacitance measurements unless the capacitor in question has been fully discharged.
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Have the device checked by a qualified technician in case of malfunction.
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Never use the meter if the back panel is not in place and firmly fixed.
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Do not use or store the device in areas exposed to direct sunlight, high temperatures or high humidity.
2.1. Symbols
Important information with reference to safety, consult the manual !
Earth ground
Double insulation (Protection class II)
