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Velleman DCM270 multimeter

1. Information sheet Vellement Safety information for Digital Volt Meters DVMs Symbols used on DVMs and in manuals Overvoltage installation categories Pollution degree General sets eta 1 Symbols used on DVMs and in manua s This symbol indicates Read instructions Not reading the instructions and manual can lead to damage injury or death This symbol indicates Danger A hazardous condition or action that may result in injury or death or death This symbol indicates Attention impo Ignoring this information can lead to hazardous situations AC Alternating Current DC Direct Current Both AC and DC POPPE j 4 y lt 3 oy 9 a V S S Q Q Q M a e 3 Double insulation classdl pr tection Earth Fuse Capacitor H Diode Continuity Velleman 1 3 Last update 31 03 2010 Information sheet explosion Viellemenh 2 Overvoltage installation categories DVMs are categorized depending on the risk and severity of transient overvoltage that might occur at the point of test Transients are short lived burst of energy induced in a system e g caused by lightning strike on a power line On high energy circuits this leads to hazardous situations as these circuits might provide enough current to feed an arc over resulting in a plasma breakdown or even Higher CAT identification refers to electrical environments with higher power and possibly higher ene
2. equire more protection and the protection against the pollution which is to be found ina certain environment depends mainly on the insulation and the enclosure properties The pollution degree rating of the DVM indicates in which environment the device may be used Pollution degree 1 No pollution or only dry nonconductive pollution occurs The pollution has no influence only to be found in hermetically sealed enclosures Pollution degree 2 Only nonconductive pollution occurs Occasionally temporary conductivity caused by condensation is to be expected home and office environments fall under this category Pollution degree 3 Conductive pollution occurs or dry nonconductive pollution occurs that becomes conductive due to condensation that is to be expected industrial environments and environments exposed to outside air but not in contact with precipitation Pollution degree 4 The pollution generates persistent conductivity caused by conductive dust or by rain or snow exposed outdoor environments and environments where high humidity levels or high concentrations of fine particles occur 4 General ution e Disconnect the testleads from the test paints before changing the position of the function rotary switch e Disconnect the test leads from the test points and remove the test leads from the measuring termina s before replacing the batteries fuses or servicing the DVM e WARNING To avoid electrical shock always disco
3. nnect the test leads prior to opening the heusing To prevent damage or injury only use batteries and fuses with the same ratings as specified in this manual e Never connect a voltage source with the function rotary switch in Q Pt o NUA mA Ac A Hz Hfe or C F position e aution risk of electroshock when measuring voltages gt 36VDC 25VAC currents gt 10mA AC power lines with inductive loads and AC power lines with fluctuating power e Avoid body contact with ground potential e g metallic terminals output sockets lead clamp while measuring Make sure to be electrically insulated from ground during measurement e Always use the device within its specified range e Only use the included test leads When damaged replace them with test leads of the same type and with the same specifications e Calibration and repair must be performed by a qualified technician Refer to your local dealer e Do not expose the DVM to extreme temperature or humidity levels Velleman 3 3 Last update 31 03 2010
4. rgy transients CAT Ill A CAT I rated meter A CAT II rated meter A CAT III rated is suitable for measurements on protected electronic circuits that are not directly connected to mains power e g electronics circuits control signals Velleman is suitable for measurements in CAT I environments and mono phase appliances that are connected to the mains by means of a plug and circuits in a normal domestic environment provided that the circuit is at least 10m apart from a CAT III or 20m apart from a CAT IV environment E g household appliances portable tools meter is suitable for measurements in CAT I and CAT II environments as well as for measurements on fixed mono or poly phased appliances which are at least 10m apart from of a CAT IV A CAT IV rated meter is suitable for measuring in CAT I CAT II and CAT III environments as well as on the primary Supply level Note that for all measurements on equipment for which the supply cables run outdoors either environment and for overhead or measurements in or on distribution level equipment fuse boxes lighting circuits electric ovens 2 3 underground a CAT IV meter must be used Last update 31 03 2010 Information sheet Vellement 3 Pollution degree IEC 61010 1 specifies different types of pollution environments for which different protective measures are necessary to ensure safety Harsher environments r

Velleman DCM270 multimeter

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