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11 

Data Hold Button 

To freeze the LCD meter reading, press the data hold 
button. The data hold button is located in the center of the 
rotary function dial. While data hold is active, the 

HOLD 

display icon appears on the LCD. Press the data hold button 
again to return to normal operation. 

Note:

 The HOLD feature may activate when the 

Backlight

 

is turned on. Press the HOLD key again to exit Hold

 
RANGE BUTTON

 

When the meter is first turned on, it automatically goes into 
Autoranging. This automatically selects the best range for 
the measurements being made and is generally the best 
mode for most measurements. For measurement situations 
requiring that a range be manually selected, perform the 
following: 

1.  Press the 

RANGE

 

button. The “Auto Range” display 

indicator will turn off, The “Manual Range” display 
indicator will turn on 

2.  Press the 

RANGE

 button to step through the available 

ranges until you select the range you want. 

3.  Press and hold the 

RANGE

 button for 2 seconds to exit 

the Manual Ranging mode and return to Autoranging. 

 

Backlight Button 

The backlight function illuminates the display and is used 
when the ambient light to too low to permit viewing of the 
displayed readings. Press the      button for two seconds to 
turn the backlight on and press the button a second time to 
turn the backlight off. 
 

 

Summary of Contents for CM-220

Page 1: ...CM 220 True RMS AC CLAMP METER INSTRUCTION MANUAL...

Page 2: ...TES Do not exceed the maximum allowable input range of any function Do not apply voltage to meter when resistance function is selected Set the function switch to OFF when the meter is not in use WARNI...

Page 3: ...d Remove the battery if the meter is to be stored for long periods Always discharge capacitors and remove power from the device under test before performing Diode Resistance or Continuity tests Voltag...

Page 4: ...lect button 11 LCD display 12 COM input jack 13 V CAP TEMP Hz input jack 14 Battery Cover 1 AC DC AC alternating current and DC direct currrent 2 Minus sign 3 8 8 8 8 6000 count 0 to 5999 measurement...

Page 5: ...5 2 digits 60 00 VDC 600 0 VDC AC Voltage 50 400Hz 6 000 VAC 1 8 8 digits 60 00 VAC 600 0 VAC Resistance 600 0 1 0 4 digits K 1 5 2 digits K K M 2 5 3 digits M 3 5 5 digits Capacitance 40 00nF 4 0 re...

Page 6: ...50 400Hz VAC Operating Temperature 41 to 104 o F 5 to 40 o C Storage Temperature 4 to 140 o F 20 to 60 o C Operating Humidity Max 80 up to 87 F 31 C decreasing linearly to 50 at 104 F 40 C Storage Hu...

Page 7: ...he 1000A or 600A range 2 If the range of the measured is not known select the higher range first then move to the lower range if necessary 3 Press the trigger to open jaw Fully enclose one conductor t...

Page 8: ...jack and the red test lead banana plug into the positive diode jack 2 Turn the rotary dial to the position 3 Press the MODE button until appears in the display 4 Touch the test probes to the diode un...

Page 9: ...uency on the display 7 Press the Hz button again to indicate on the display Read the of duty cycle on the display Temperature Measurements WARNING To avoid electric shock disconnect both test probes f...

Page 10: ...th high sensitivity Static electricity or other sources of energy may randomly trip the sensor This is normal operation MODE BUTTON To select between DC ACV Diode Continuity CAP C F MIN MAX Recording...

Page 11: ...de and is generally the best mode for most measurements For measurement situations requiring that a range be manually selected perform the following 1 Press the RANGE button The Auto Range display ind...

Page 12: ...either repair or replace the defective unit at PDI s discretion A purchase receipt or other acceptable form of proof of original purchase date will be required before any warranty processes begin PDI...

Page 13: ...13...

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