CEM 722-449 Operating Instructions Manual Download Page 12

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second to turn the backlight on and press the button a
second time to turn the backlight off.

Manual Ranging

The meter turns on in the autoranging mode. Press the

Range

button to go to manual ranging. Each press of the

range button will step to the next range as indicated by the
units and decimal point location. Press and hold the

Range

button for two seconds to return to autoranging. Manual
ranging does not function in the AC Current , Diode and
Continuity check functions

Battery Replacement

1.  Remove the one rear Phillips head screw
2.  Open the battery compartment
3.  Replace the Requires one

“9V” battery (NEDA1604,

6F22 006P)

Re-assemble the meter

Summary of Contents for 722-449

Page 1: ...OPERATING INSTRUCTION 1000A True RMS DC AC CLAMP METER...

Page 2: ...function Do not apply voltage to meter when resistance function is selected Set the function switch OFF when the meter is not in use WARNINGS Set function switch to the appropriate position before me...

Page 3: ...ischarge capacitors and remove power from the device under test before performing Diode Resistance or Continuity tests Voltage checks on electrical outlets can be difficult and misleading because of t...

Page 4: ...on 6 LCD display 7 COM input jack 8 Rotary Function swith 9 ZERO button 10 Range select button 11 V jack 12 Battery compartment on rear 1 AC DC AC alternating current and DC direct currrent 2 Minus si...

Page 5: ...igits DC Voltage 400 0 mVDC 0 8 3 digits 4 000 VDC 1 5 3 digits 40 00 VDC 400 0 VDC 600 VDC 2 0 3 digits AC Voltage True RMS 400 0 mVAC 0 8 20 digits 4 000 VAC 1 8 5 digits 40 00 VAC 400 0 VAC 600 VAC...

Page 6: ...y not included 20 to 1000 C 3 0 reading 5 C 4 to 1832 F 3 0 reading 7 F Note No Autoranging 400mV AC Voltage Range Clamp size Opening 1 2 30mm approx Diode Test Test current of 0 3mA typical Open circ...

Page 7: ...0 60Hz VAC Operating Temperature 14 to 122 o F 10 to 50 o C Storage Temperature 14 to 140 o F 30 to 60 o C Relative Humidity 90 0 o C to 30 o C 75 30 o C to 40 o C 45 40 o C to 50 o C Altitude Operati...

Page 8: ...Function switch to the 1000A or400A or 40A range If the range of the measured is not known select the higher range first then move to the lower range if necessary 2 Select AC or DC with the MODE butto...

Page 9: ...er test It is best to disconnect one side of the device under test so the rest of the circuit will not interfere with the resistance reading 5 For Resistance tests read the resistance on the LCD displ...

Page 10: ...ead banana plug into the negative COM jack Insert the red test lead banana plug into the positive V jack 3 Touch the test leads to the capacitor to be tested 4 Read the capacitance value in the displa...

Page 11: ...The digital reading will indicate the proper decimal point and value WARNING To avoid electric shock be sure the thermocouple has been removed before changing to another measurement function Data Hol...

Page 12: ...button will step to the next range as indicated by the units and decimal point location Press and hold the Range button for two seconds to return to autoranging Manual ranging does not function in th...

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