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ROVA INSTRUMENTS CM-02 User Manual

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CM-02 DC/AC CLAMP METER
CM-04 AUTOMOTIVE CLAMP METER
USERS MANUAL
ROVA INSTRUMENTS INC.

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Summary of Contents for ROVA INSTRUMENTS CM-02

  • Page 1 CM-02 DC/AC CLAMP METER CM-04 AUTOMOTIVE CLAMP METER USERS MANUAL ROVA INSTRUMENTS INC.
  • Page 2 EN 61010-2-032 CAT II 600V CAT III 300V Pollution Degree 2 Definition of Symbols: Caution: Refer to Accompanying Documents Caution: Risk of Electric Shock Double Insulation Overvoltage Category I (CAT I): Equipment for connection to circuits in which measures are taken to limit the transient overvoltages to an appropriate low level.

  • Page 3: Table Of Contents

    3.3. Capacitance Measurement............6 3.4. Temperature Measurement ............7 3.5 Resitanc e Measurement............... 8 3.6. Continuity Test ................8 3.7. Frequency (Hz) Measurement (CM-02)........... 8 3.8. RPM Measurement (CM -04) ............9 3.9. Relative Reading Measurements........... 9 3.10. Holding the LCD Reading............10 3.11.

  • Page 4: Panel Description

    2. Panel Description 1. Transformer Jaw This is used to pick up current signal. To measure DC/AC current, conductor must be enclosed by the jaw. 2. Transformer Trigger This is used to open the jaw. 3. Function Selector Switch This is used to select the function user desired, such as DCA, ACA, DCV, ACV, Hz, Ohm and Continuity.
  • Page 5 7. Zero/Relative Button Once this button is pressed, the current reading shall be set to zero and be used as a zero reference value for all other subsequent measurement. The function is also used to remove offset value caused by residual magnetism remaining in the core for the DC current measurement.

  • Page 6: Operation Instructions

    3.Operation Instructions 3.1. DC/AC Current Measurements WARNING: Make sure that all the test leads are disconnected from the meter's terminals for current measurement. 3.1.1 DC Current a. Set the rotary switch at 40A or 200A and move the sliding switch to DC b.

  • Page 7: Dc/Ac Voltage Measurements

    b. Press the trigger to open the jaw and fully enclose the conductor to be measured. No air gap is allowed between the two half jaws. c. Read the measured value from the LCD display. 3.2. DC/AC Voltage Measurements WARNING: Maximum input for DC V is 600, and for AC V is 600. Do not attempt to take any voltage measurement that exceeds the limits.

  • Page 8: Capacitance Measurement

    3.3. Capacitance Measurement a. Plug the adapter into the terminal b. Insert the capacitor into the adapter. c. If the capacitance is less than 4nF, press ZERO (capacitance) button to zero the residual capacitance. d. Read the value from LCD.

  • Page 9: Temperature Measurement

    3.4. Temperature Measurement a. Plug the adapter into the terminal b. Insert the K-type thermal couple into the adapter c. Read the temperature from LCD.

  • Page 10: Resitanc E Measurement

    3.6.4. Read the measured value from the LCD display. 3.6.5. If the resistance is lower than 40 Ω, a beeping sound shall be heard. 3.7. Frequency (Hz) Measurement (CM-02) 3.7.1. Set the rotary switch at Hz. 3.7.2. Insert the test leads into the input jack.

  • Page 11: Rpm Measurement (Cm-04)

    3.8. RPM Measurement (CM-04) 3.8.1. Set the rotary switch at RPM. 3.8.2. Insert the RPM adapter into the input jack. 3.8.3. Clamp on to the wire connected to the spark plug of any single cylinder of engine. 3.8..4. Read the RPM value from the LCD display. 3.9.

  • Page 12: Holding The Lcd Reading

    3.10. Holding the LCD Reading Press the HOLD button, then the reading will be hold and kept on LCD. 3.11. Finding the MAX/MIN Value Press the MAX/MIN button to enable the maximum and minimum values to be recorded and updated during measurement. Push the button once, the maximum value shall be displayed and updated.

  • Page 13: Specifications(23°C ± 5°C )

    4.Specifications(23°C ± 5°C ) DC Current: Range Resolution Accuracy Overload Protection 10mA ±1.5%±2dgts DC 400A 0-150A 100mA ±1.5%±2dgts DC 400A 150-200A 100mA ±2.2%±2dgts DC 400A AC Current Overload Accuracy Protection Range Resolution 50/60 Hz 40 - 1KHz 10mA ±1.5%±3dgts ±2.0%±4dgts AC 400A 0-150A 100mA...
  • Page 14 ±1.5%±2dgts AC 600V ±1.5%±2dgts AC 600V 4M Ω 1K Ω 40M Ω 10K Ω ±1.5%±2dgts AC 600V Frequency ( CM-02, Auto, sensitivity selected by pressing RANGE Button): Range Resolution Accuracy Sensitivity Protection (Hz) (Hz) 100-100K 0.01 – 100 Hz ±0.5%±2dgts 0.01/0.1/1V...
  • Page 15 TEMPERATURE (K Type Thermal Couple with Adapter, ℃ or ℉ ) Range Resolution Accuracy Overload Protection AC 600V -40 – 0 ℃ 0.1 ℃ ±2.0%±2 ℃ AC 600V 0 – 400 ℃ 0.1 ℃ ±0.5%±2 ℃ 400 – 1000 ℃ 1 ℃...
  • Page 16 Dimension: 183mm(L)x63.6mm (W) x 35.6mm (H) 7.2" (L) x 2.5" (W) x 1.4" (H) Weight: 190g (battery included) Accessories: Adapter (for Capacitance and K-type Thermal Couple) Carrying bag x 1 Users manual x 1 1.5V battery x 2 Option: RPM adapter...

  • Page 17: Battery Replacement

    5.Battery Replacement When the low battery symbol is displayed on the LCD or LCD display is dark, replace the old batteries with two new batteries. 5.1. Turn the power off and remove the test leads from the clamp meter. 5.2. Remove the screw of the battery compartment. 5.3.

This manual is also suitable for:

Cm-04

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