Tone probe with adjustable volume.
tone probe with adjustable volume, visual
signal indicator, headset jack,
handset connection tabs,
and flashlight (49 pages)
• Automatic ranging Safety Safety is essential in the use and maintenance of Greenlee tools and equipment. This instruction manual and any markings on the tool provide information for avoiding hazards and unsafe practices related to the use of this tool. Observe all of the safety information provided.
Contact with live circuits could result in severe injury or death. Do not discard this product or throw away! All specifications are nominal and may change as design improvements occur. Greenlee Textron Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
Page 4
Important Safety Information Electric shock and fire hazard: • Do not expose this unit to rain or moisture. • Do not use the unit if it is wet or damaged. • Clamp meter, test leads or any other clamp accessory, when used to make a mea- surement, create a System.
Page 5
CM-660 • CM-860 • CM-960 • CMH-600 • CMI-600 Important Safety Information Electric shock hazard: • Unless measuring voltage, current, or frequency, shut off and lock out power. Make sure that all capacitors are discharged. Voltage must not be present.
Identification 1. Antenna for non-contact EF detection 2. Jaw center indicator for best current accuracy; polarity indicator for DC amps 3. Selects a function or turns power off 4. LCD 5. Input jack for phase and motor rotation functions only 6.
Using the Features All Models • REC: Press momentarily to activate MAX/MIN/AVG recording mode. and “MAX MIN AVG” appear on the display. The meter beeps when new maximum or minimum reading is updated. The average reading is calculated over time. Press the button momentarily to read the MAX, MIN and AVG readings in sequence.
Page 9
CM-660 • CM-860 • CM-960 • CMH-600 • CMI-600 Using the Test Leads Electric shock hazard: The test leads supplied with this product comply with safety standards that limit the exposed length of the probe tip to 4 mm for measurement categories III and IV. These test leads include a cap that must be in place when used in measurement category III or IV applications.
Page 10
The ability to read true RMS provides much more measurement versatility. The Greenlee CM-660, CM-860, CM-960, CMH-600, and CMI-600 are true RMS meters.
CM-660 • CM-860 • CM-960 • CMH-600 • CMI-600 AC Bandwidth AC bandwidth is the range of frequencies over which AC measurements can be made within the specified accuracy. It is the frequency response of the AC functions—not of the frequency measurement functions. A meter cannot accurately measure the AC value with frequency spectrums outside its bandwidth.
Page 12
Operation (cont’d) Settings Table Set the These icons Connect Connect To measure selector appear on the the red the black this value … to this display … lead to … lead to … symbol … ALL MODELS Voltage (AC) Voltage (DC) Current, AmpTip™ (AC) Current (AC) Ω...
Page 13
CM-660 • CM-860 • CM-960 • CMH-600 • CMI-600 Typical Measurements and Accuracy Refer to the “Specifications” section for operating conditions and temperature coefficient. Accuracy is specified as follows: ± (a percentage of the reading + a fixed amount) at 23 °C ±...
± (1.5% + 0.15 A) 4.00 A to 60.00 A ± (1.5% + 0.05 A) * For CM-660, CM-860, and CMH-600 only. ** For CM-960 and CMI-600 only, induced error for adjacent current carrying conductors is < 0.01 A/A. AmpTip™ DC Current (CM-960 and CMI-600 only)
Page 15
CM-660 • CM-860 • CM-960 • CMH-600 • CMI-600 Typical Measurements and Accuracy (cont’d) Current Measurement (cont’d) AC and DC Clamp AC Current (CM-960 and CMI-600 only) Accuracy at Accuracy at Range Accuracy Range 50 Hz to 100 Hz*† 100 Hz to 400 Hz*†...
Typical Measurements and Accuracy (cont’d) 10 mm (0.4") Electric Field Note: CM-660 and CM-860 have a dedicated switch position. Non-contact EF Detection Typical Range at SELECT Voltage 50 Hz to 60 Hz Indication 20 V 10 V ~ 36 V...
CM-960 and CMI-600: 222 mm x 76 mm x 37 mm (8.7" x 3.0" x 1.4") CM-660, CM-860, and CMH-600: 217 mm x 76 mm x 37 mm (8.5" x 3.0" x 1.4") Jaw Opening and Conductor Diameter: 30 mm max (1.18") GlobalTestSupply www.
Statement of Conformity Greenlee Textron Inc. is certified in accordance with ISO 9001 (2000) for our Quality Management Systems. The instrument enclosed has been checked and/or calibrated using equipment that is traceable to the National Institute for Standards and Technology (NIST).
CM-660 • CM-860 • CM-960 • CMH-600 • CMI-600 Maintenance Electric shock hazard: Before opening the case, remove the test leads from the circuit and shut off the unit. Failure to observe this warning could result in severe injury or death.