User`s Manual for DM3218 Digital Clampmeter
Contents
1. Fuel Burning Equipment Volume 2 Meters 3 MEASURING SPECIFICATIONS nn DCV Range Resolution 200mV 100uV 2V ImV 20V 10mV 200V 100mV 600V 1V Input Impedance 10MQ Overload Protection 700Vrms or 1000Vp ACV Range Resolution 2V ImV 20V 10mV 200V 100mV 600V 1V Input Impedance 10MQ Overload Protection 700Vrms or 1000Vp Frequency Range 40Hz 400Hz Response Average calibrated in rms of sine wave DCA Range Resolution 200uA 0 luA 2000uA luA 20mA 10uA 200mA 100uA Overload Protection F200mA 250V fuse ACA Range Resolution 200uA 0 1uA 2000uA luA 20mA 10uA 200mA 100uA 2A ImA 20A 10mA 200A 100mA 500A 1A Frequency range 40Hz 400Hz Response Average calibrated in rms of sine wave Overload Protection F200mA 250V fuse for 200uA 200mA ranges NOTE 2A 500A Range Tests must use clamp Resistance Range Resolution 200 0 1 2k 1 20k 10 200k 100 2M 1k 20M 10k Open circuit Voltage 0 5V Overload Protection 250V DC or rms AC Diode amp Continuity Range Description o If continuity exists about less than 50Q built in buzzer will sound gt Shows the approx forward voltage drop of the diode Overload Protection 250V DC or rms AC 4 PUSHBUTTON INSTRUCTIONS 4 1 M H2. Max Hold Meter continues working after pushing this button the display will hold the maximum data 4 2 F S Function Select This button is used to change current measurement between Amps AC or DC Amps mode 4 3 D H Data hold Push this button to hold the last measuring result this function remains valid until the button is pushed again 5 HOW TO TAKE MEASUREMENTS Start up inspection WARNING e Never use meter if the meter or test leads are damaged or broken e Make sure that the test leads are not cut or otherwise damaged 5 1 MEASURING CURRENT Connect the black test lead to the COM jack and the red test lead to mA jack for a maximum of 200mA Set the function switch at uA mA range to be used and push down the F S button to select DCA or ACA measuring mode Connect leads in series with the load in which the current is to be measured Read the LCD display The polarity of red lead connection will be indicated when making a DCA measurement Set the function switch at 20A or 500A range if the test current ACA is more than 200mA and press the trigger to open the transformer jaws and clamp them around a conductor 6 Jaws should be completely closed before taking a reading 7 The most accurate reading will be obtained by keeping the conductor across center of the transformer jaws 8 The reading will be indicated on the display Di alee 5 2 VOLTAGE MEASUREMENTS e WARNING Never apply an input signals exceeding the
3. User s Manual for DM3218 Digital Clampmeter CE Distributed by www FiredragonEnt com OVERVIEW 1 SAFETY INFORMATION This digital clamp meter has been manufactured and tested in accordance with IEC10101 Part 1 Safety Requirement for Electrical Equipment for measurement control and laboratory use Safety Class II Overvoltage category II Before using the meter please read this manual thoroughly After reading it keep it together with the product for reference when necessary This manual contains information and WARNINGS which must be observed to assure safe operation and maintain the meter in safe condition 1 1 Explanation of safety symbols The meaning of the symbols used in this manual and attached to the product is as follows Very important instruction for safe use e The warning massages are intended to prevent accidents to operating personnel such as burns and electrical shocks The caution messages are intended to prevent damage to the instrument A Dangerous voltage Take care not to get an electric shock in voltage measurement Ground Allowable applied voltage range between the input terminal and earth V Direct current DC V Alternating current AC Double insulation Protection Class IT 1 2 Warning instructions for safe use To ensure that the meter is used safely be sure to observe the instructions when using the instrument 1 Never use meter on the electric circuit that exceeds 600V 2 Ne
4. ect both test lead and never uses the meter before the case is closed CAUTION To avoid contamination or static damage do not touch the circuit board without proper static protection REMARKS If the meter is not going to be used for a long time take out the battery and do not store the meter in high temperature or high humidity environment When taking current measurement keeping the cable at the center of the clamp will give more accurate test results Repairs or servicing not covered in this manual should only be done by qualified perssonel CLEANING Periodically wipe the case with a dry cloth and detergent Do not use abrasives or solvents on this instruments WARRANTY Victor warrants this instrument to be free from defects in material and workmanship for a period of one year This warranty does not cover expendable items such as batteries or test leads If the defect has been caused by a misuse or abnormal operating conditions the repair will be billed at a nominal cost DM 3218 FD
5. maximum rating input value Be sure to disconnect the test pins from the circuit when changing the function Always keeps your fingers behind the finger guards on the probe when making measurement DCV V Maximum rating input value 600V ACV Y Maximum rating input value 600V 1 Plug the black test lead into the COM input jack on the meter and connect the test lead tip to a groundpoint the reference point for measurement of voltage 2 Select the desired AC Voltage range Y or DC Voltage range V 3 Plug the red test lead into the V input jack on the meter and connect the circuit where a voltage measurement is required Voltage is always measured in parallel across a test point 5 3 RESISTANCE MEASUREMENTS 1 Turn off any power to the resistance to be measured Discharge any capacitors Any voltage present during a resistance measurement will cause inaccurate readings and could damage the meter if exceeding the overload protection of 600 VDC or AC 2 Insert the BLACK and RED test leads into the COM and input terminals respectively 3 Select the function switch at Q 4 Connect the BLACK and RED test probe tips to the circuit or device under test making sure it is de energized first 5 Open circuits will be displayed as an overload OL condition 5 4 TESTING DIODE 1 Set the meter switch at the PH position 2 Voltage range black test lead to the COM jack and the red test lead to the V mA jack 3 Push d
6. own the F S button 4 Connect the red lead to the anode the black lead to cathode of the diode under test 5 You can get reading from LCD NOTE 1 The meter will show the approximate forward voltage drop of the diode 2 If the lead to connection is reversed only figure OL will be display 5 5 CONTINUITY TEST Set the meter switch at the position Connect the black test lead to the COM jack and red test lead to the V mA jack Push down the F S button Connect test leads across two points of the circuit under testing If continuity exists resistance less than about 50 Q built in buzzer will sound dle ciel eae M BATTERY REPLACEMENT e WARNING TO AVOID ELECTRICAL SHOCK DISCONNECT THE TEST LEADS AND ANY INPUT SIGNALS BEFORE REPLACING THE BATTERY ONLY WITH SAME TYPE OF BATTERY This meter is powered by 2 pcs AAA 1 5Vdc When the meter displays the battery must be replaced to maintain proper operation Use the following procedure to replacing the battery 1 Disconnect test leads from any live source turn the rotary switch to OFF and remove the test leads from the input terminals 2 The battery is secured to the rear case by a screw Using a screwdriver remove the screw from the rear case and remove the rear case 3 Remove battery and replace with two new batteries Check the battery polarity 4 Replace the rear case and reinstall the screw 7 MAINTENANCE e WARNING Before open the case disconn
7. ver apply an input signal that exceeds the maximum rating input value 3 Never use meter if the meter or test leads are damaged or broken 4 Pay special attention when measuring any voltage of over AC 30Vrms 42 4V peak or DC 60V or more to avoid injury 5 Never use the meter for measuring line connected equipment i e motors that generate induced or surge voltage it may exceed the maximum allowable voltage 6 Never use a damaged meter 7 When connecting and disconnecting the test leads first connect the ground lead black one 8 Always keep your fingers behind the finger guards on the probe when making measurements 9 Be sure to disconnect the test pins from the circuit when changing the meter s function 10 Before starting measurements make sure that the function and range are properly set in accordance with the measurement 2 GENERAL SPECIFICATIONS Digital Display 1 1 4 digital LCD display with maximum reading 1999 Sampling Rate 3 times sec Polarity When negative signal is applied the tester will show Overload When the signal is larger than the maximum allowed it will show OL Range Auto range Battery discharge indication Auto Power Off 15 minutes Power supply 2 pcs AAA7 1 5V Dimension 7 x 2 x 1 5 inches Weight 6 ounces including batteries Accessories This meter comes complete with instruction manual carry case test leads alligator clips spare batteries and one copy of WIRING amp
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