Elenco 3 1/2 Digit with Temperature Uživatelský manuál Strana 1

OPERATOR’SINSTRUCTION MANUALM-2625AUTO RANGINGDIGITAL MULTIMETERwith Temperature ProbeCopyright © 2007 Elenco®Electronics, Inc.

Figure 5. LCD DisplayTable 5. LCD Display Symbols-10-Sequ. No. Symbol Description1 8.8.8.8The display digit group2 –Negative symbol3 ACAC (alternati

Table 5. LCD Display Symbols (continued)4. Power On OptionTo release the Auto Power Off function, press and hold theSELECT button when the

• When you change the measurement function, the meter willregard its auto range as current range.• In the auto range mode, the “AUTO” symbol will appe

Measuring DC Voltage1. Turn on the meter, then set up the meter to measure DC volts asshown in Figure 6.2. Insert the black test lead into the COM ter

Measuring AC Voltage1. Turn on the meter, then set up the meter to measure AC volts asshown in Figure 7.2. Insert the black test lead into the COM ter

Figure 7. AC Voltage MeasurementNote: When taking a measurement of less than 20mV at the 400mVAC range, the measurement value cannot be indicated

Measuring CurrentWarningNever attempt an in-circuit current measurement where theopen-circuit potential to earth is greater than 300V. You maydamage

Measuring DC Current1. Turn off power to the circuit. Discharge all high-voltagecapacitors.2. Turn on the meter, then set up the meter to mea

Figure 8. DC Current Measurement-18-

Figure 8. DC Current Measurement (continued)Measuring AC Current1. Turn off power to the circuit. Discharge all high-voltagecapacitors.2. Tu

Contents1. Safety Information 3,42. Safety Symbols 53. Front Plate of the Meter 5Input Terminal 6Function Rotary Switch 7Function Press Button 8,9LCD

Note: To avoid blowing the meter’s 500mA fuse, use the mAterminal only if you are sure the current is less than 400mA.Figure 9. AC Current M

Figure 9. AC Current Measurement (continued)Measuring ResistanceCautionTo avoid possible damage to the meter or to the equipmentunder test, disconnec

1. To measure resistance, turn on the meter, then set up the meteras shown in Figure 10.2. Insert the black test lead into the COM terminal and the re

Testing DiodesCautionTo avoid possible damage to the meter or to the equipmentunder test, disconnect the circuit power and discharge allhigh-voltage c

Note: Open-circuit voltage between measuring terminals isapproximately 1.5V (measuring current approximately 1.5mA). Testing for ContinuityCautio

Keep the following in mind while doing a continuity test:• Even with the test leads shorted, the indicated value may not be“0”. This is because of th

Figure 13. Capacitance Measurement-26-

Measuring FrequencyFrequency is the number of cycles a signal completes each second.The meter measures the frequency of a voltage or current signalby

Measuring Duty CycleDuty cycle (or duty factor) is the percentage of time a signal isabove or below a trigger level during one cycle (Figure 16

Figure 16. Duty Cycle MeasurementMeasuring TemperatureWarningTo avoid the potential of fire or electrical shock, do notconnect the thermoco

IntroductionThis series LCD auto ranging and auto power-off digital multimeteris a portable, compact, 3¾ digit multimeter. It is ideally suited forfie

Figure 17. Temperature Measurement-30-

8. MaintenanceGeneral MaintenancePeriodically wipe the case with a damp cloth and mild detergent.Do not use abrasives or solvents. Dirt or moisture i

Replacing the FusesWarningTo avoid electrical shock or damage to the meter, only usereplacement fuses ∅∅5x20 0.5A/250V FAST or ∅∅6x2510A/250V FAST

9. General SpecificationsDisplay: 3¾ digit LCD with a maximum reading of 3999.Range Control: Auto range or manual range control.Polarity: Automatic ne

Table 8. ACV Detailed Accuracy SpecificationsTable 9. DCA Detailed Accuracy SpecificationsTable 10. ACA Detailed Accuracy SpecificationsTable 11.

Table 12. Capacitance Detailed Accuracy SpecificationsTable 13. Diode Detailed Accuracy SpecificationsOverload protection: 250V rmsTable 14. Frequ

Elenco®Electronics, Inc.150 Carpenter AvenueWheeling, IL 60090(847) 541-3800Web site: www.elenco.come-mail: [email protected]

Table 1. Safety Information (continued)Warning• When servicing the meter, use only specified replacement parts.• Use caution when working above 30VAC

2. Safety SymbolsSymbols used on the meter and in this manual are explained inTable 2.Table 2. International Electrical and Relative Symbols3. Front P

Input TerminalAbout terminal function refer to Table 3 and Figure 2.Figure 2. Input TerminalTable 3. Input TerminalFunction Rotary SwitchAbout functio

Figure 3. Function Rotary SwitchTable 4. Function Rotary Switch Symbols-7-Position of SwitchFunction~VDC/AC voltage measurementΩΩResistance measurem

Table 4. Function Rotary Switch Symbols (continued)Function Press ButtonAbout press function button refer to Figure 4.Figure 4. Function Press Butto

3. REL∆∆(relative measurement)Press the REL∆∆button to use the relative measuring function anda “REL∆” symbol appears on the LCD. The result of the