Related Manuals for Clarke CDM80C
Summary of Contents for Clarke CDM80C
- Page 1 PEN-TYPE DIGITAL MULTIMETER MODEL NO: CDM80C PART NO: 4501160 OPERATING INSTRUCTIONS DL0723...
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Page 2: Environmental Recycling Policy
INTRODUCTION Thank you for purchasing this CLARKE product. This instrument is a professional, portable multimeter with an easy to read LCD display. It incorporates overload protection, low battery indication, with both auto-range and manual ranges available. During use, the instrument automatically shows the value and unit of the measurement. -
Page 3: Safety Information
SAFETY INFORMATION WARNING: TAKE CARE WHEN USING THIS METER. IMPROPER USE CAN RESULT IN ELECTRIC SHOCK OR DAMAGE TO THE METER. TAKE ALL NORMAL SAFETY PRECAUTIONS AND FOLLOW THE SAFEGUARDS SUGGESTED IN THIS MANUAL. BEFORE USE 1. When using the meter, the user must observe all normal safety rules concerning: •... -
Page 4: Safety Symbols
12. To avoid false readings, replace the batteries as soon as the Low Battery indicator appears. 13. Before use, verify the meter operation by measuring a known voltage. 14. Never touch exposed wiring, connections or any live circuit while taking any measurements. -
Page 5: Items Supplied
FEATURES COMPONENTS OF THE METER Positive test probe Function Button Probe cover (removable) Max Hold Button LED Indicators Non-contact voltage button Protective Shoulder Panel Rotary Switch LCD Screen Data Hold Button COM jack Range Button ITEMS SUPPLIED • Multi-meter • Black test lead & probe •... -
Page 6: Buttons And Functions
BUTTONS AND FUNCTIONS Button Function Description HOLD Any mode Press to hold the current reading on the display. Hold the button while turning on the meter to turn off the auto power feature. Ω RANGE Switch ranges in manual range. Hold to return to auto range. -
Page 7: Specifications
SPECIFICATIONS Model Number CDM80C Product Dimensions 222 x 44 x 30 mm Weight (inc batteries) 130g Test leads length (inc probe) 1000 mm Fuse protection 400mA/600V Power 2 x AAA batteries Maximum display value 1999 Over-range indication “1” Polarity display “-”... -
Page 8: Operation
OPERATION Before taking the measurement of voltage with the probe, make sure there is no electronic device connected to the test socket of the instrument. DC VOLTAGE MEASUREMENT Range Resolution Accuracy 200mV 0.001V ± 0.7% of reading, ± 2 digits 0.01V 200V 0.1V... -
Page 9: Diode Test
RESISTANCE Range Resolution Accuracy Ω 0.1Ω ± 1.0% of reading, ± 3 digits Ω 0.001Ω Ω 0.01Ω ± 1.0% of reading, ±1 digits Ω 0.1Ω 200k Ω 0.001MΩ Ω 0.01MΩ ± 1.0% of reading, ± 5 digits Open circuit voltage: 250mV Overload protection: 250V DC or AC rms CONTINUITY Function... -
Page 10: Ac Current Measurement
AC CURRENT MEASUREMENT Measuring Range Resolution Accuracy 20mA 0.01mA ± 2% of reading, ± 3 digits 200mA 0.1mA Overload protection: re-settable fuse Frequency range: 40Hz to 200Hz Response: average (rms of sine wave). LOGIC TEST Function Description Low”0” 1.5V 3.5V High”1”... -
Page 11: Using The Meter
USING THE METER READING HOLD 1. During measurement, press the “HOLD” button to keep the current reading on the display. “D.H” will appear on the display. Press the “HOLD” again to return to normal display. MAX HOLD 1. During measurement, press the “MAX” button and the display will show the maximum value recorded. - Page 12 2. When connecting the meter to a circuit, connect the common lead first, then the meter’s test probe. 3. If the battery voltage becomes <2.4V, the symbol appears on the display. Replace the batteries before making measurements. DC VOLTAGE 1. Use the probe cover if making measurements on category III or above installations.
- Page 13 AC VOLTAGE WARNING: TO PREVENT ELECTRIC SHOCK AND DAMAGE TO THE METER OR PERSONNAL INJURY, DO NOT MEASURE VOLTAGES THAT MAY EXCEED 600V AC RMS. 1. Use the probe cover if making measurements on category III or above installations. 2. Insert the black test lead into the “COM”...
- Page 14 RESISTANCE WARNING: TO PREVENT ELECTRIC SHOCK BE SURE ALL POWER TO THE CIRCUIT IS OFF AND ANY CAPACITORS HAVE FULLY DISCHARGED BEFORE MEASURING RESISTANCE. 1. Use the probe cover if making measurements on category III or above installations. 2. Insert the black test lead into the “COM”...
- Page 15 • The display will show the measured value. NOTE: The display shows the approx. forward voltage drop. If the connections are reversed or the leads are not connected, the display will show “O.L”. CONTINUITY WARNING: TO PREVENT ELECTRIC SHOCK BE SURE ALL POWER TO THE CIRCUIT IS OFF AND ANY CAPACITORS HAVE FULLY DISCHARGED BEFORE MEASURING CONTINUITY.
- Page 16 4. The default mode is DC current. Press “RAN” to switch to manual range if needed. 5. Connect the test probe and test lead in series with the circuit under measurement. • The display will show the measured value. Observe the polarity of the test probe for DC Current measurements.
- Page 17 4. Connect the black test lead to the circuit’s earth (-) terminal. 5. Hold down the “FUNC” button and touch the test probe to the circuit for measurement. The LEDs near the tip of the meter will indicate the current logic level (red indicates “high”...
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Page 18: Maintenance
MAINTENANCE GENERAL CARE WARNING: BEFORE REMOVING THE REAR COVER, DISCONNECT THE PROBES FROM THE CIRCUIT TO BE MEASURED. ENSURE THE COVER IS TIGHTLY SECURED BEFORE USING THE INSTRUMENT. Always move the rotary switch to the OFF position when the meter is not in use. Clean the housing of the instrument only with a wet rag dripped with little detergent but never chemical solution. -
Page 19: Declaration Of Conformity
DECLARATION OF CONFORMITY Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com...
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