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Summary of Contents for Clarke CDM 85
- Page 1 OPEN JAW DIGITAL MULTIMETER OPEN JAW DIGITAL MULTIMETER MODEL No: CDM85 Part No: 4500095 OPERATING & MAINTAINENCE INSTRUCTIONS 0508...
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Page 2: Safety Information
GUARANTEE This CLARKE product is guaranteed against faulty manufacture for a period of 12 months from the date of purchase. Please keep your receipt as proof of purchase. This guarantee is invalid if the product is found to have been abused or tampered with in any way, or not used for the purpose for which it was intended. - Page 3 WARNING To avoid possible electric shock or personal injury, follow these guidelines: • Do not use the meter if it is damaged. Before you use the meter, inspect the case. Pay particular attention to the insulation surrounding the connectors. • Inspect the test leads for damaged insulation or exposed metal. Check the test leads for continuity.
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Page 4: General Specification
• Remaining endangerment: When an input terminal is connected to dangerous live potential it is to be noted that this potential at all other terminals can occur! • CATII - Measurement Category II is for measurements performed on circuits directly connected to low voltage insta I lation. (Exam pies are measurements on household appliances, portable tools and similar equipments.) Do not use the meter for measurements within Measurement Categories III and IV. - Page 5 PARTS ID Clamp Jaw Used to clamp the conductor to be measured. To get more accurate reading, the conductor should be in the center of the jaws. Trigger Used to open and close the jaws for AC current measurement. Display 3 1/2-digit LCD, with a max.
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Page 6: Measuring Dc Voltage
OPERATING INSTRUCTIONS Measuring DC Voltage Insert the plug of the black test lead to the “COM” jack, the Ω plug of the red test lead to the ‘V ’ jack. Set the rotary switch to “600V position. Connect the test leads to the source or load to be measured. Read the voltage value on the LCD. -
Page 7: Measuring Resistance
Measuring Resistance 1 Insert the plug of the black test lead to the “COM” jack, the plug Ω of the red test lead to the ‘V ’ jack. 2 Set the rotary switch to the desired resistance range position Ω Ω... - Page 8 TEST RANGE SPECIFICATION Accuracy specifications take the form of: ±(% of Reading+number of least significant digits). AC Voltage ± Ω Input impedance: 9M Frequency Response: 40Hz~400Hz Maximum permited input voltage: 600Vrms DC Voltage ± Ω Input impedance: 9M Maximum permited input voltage: 600Vrms Resistance Ω...
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Page 9: Audible Continuity
AC Current ± ± ± Response: Average, calibrated in rms of a sine wave Frequency range: 50 ~ 60 Hz Audible Continuity s i s Ω Ω Diode l l i... -
Page 10: Battery Replacement
GENERAL MAINTAINANCE Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents. Dirt or moisture in the jacks can affect readings. Clean the jacks as follows: 1 Make sure that no object is clamped in the jaws. 2 Turn the meter off and remove the test leads. - Page 11 NOTES...
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