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Users Manual 

13 

Testing Continuity 

X

Warning

 

To avoid electrical shock when testing continuity in a circuit, 
make sure the power to the circuit is turned off and all 
capacitors are discharged. 
 

1.

 

Turn the rotary function switch to 

D

. Remove power from the 

circuit being tested. 

2.

 

Connect the black test lead to the 

COM 

terminal and the red 

test lead to the 

V

e

 terminal. 

3.

 

Connect the probes across the circuit or component to be 
tested. 

If the resistance is under 50 

Ω

, the beeper will sound continuously, 

designating a short circuit. If the Meter reads OL, the circuit is 
open. 

TRUE RMS

CLAMP METER

318

AC/DC

MIN MAX

REL

OFF

40

 

A

400

 

A

1000

 

A

V

PEAK

HOLD

OFF

PEAK

HOLD

TRUE RMS

CLAMP METER

318

AC/DC

MIN MAX

REL

OFF

40

 

A

400

 

A

1000

 

A

V

PEAK

HOLD

OFF

PEAK

HOLD

Short Circuit

Open Circuit

 

aca17f.eps 

Figure 7. Measuring Continuity (318 shown) 

 

Содержание 312

Страница 1: ... PN 1989445 July 2002 Rev 2 2 06 2002 2006 Fluke Corporation All rights reserved Printed in China All product names are trademarks of their respective companies 312 316 318 Clamp Meter Users Manual ...

Страница 2: ...NLY REMEDY NO OTHER WARRANTIES SUCH AS FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSED OR IMPLIED FLUKE IS NOT LIABLE FOR ANY SPECIAL INDIRECT INCIDEN TAL OR CONSEQUENTIAL DAMAGES OR LOSSES ARISING FROM ANY CAUSE OR THEORY Since some states or countries do not allow the exclusion or limitation of an implied warranty or of incidental or consequential dam ages this limitation of liability may not app...

Страница 3: ...ocations 6 Symbol Definition 7 Making Measurements 7 Measuring AC Current 8 Measuring DC Current 316 318 only 9 Measuring AC and DC Voltage 9 Measuring Resistance 12 Testing Continuity 13 Diode Test 14 Data Hold 15 Peak 15 MIN MAX 316 318 only 15 REL S 316 318 only 16 Range 312 only 16 Changing the Battery 16 Cleaning the Meter 16 Maintenance 16 ...

Страница 4: ...ii ...

Страница 5: ...ck the test leads for continuity Replace damaged test leads before using the Meter Have the Meter serviced only by qualified service personnel Do not apply more than the rated voltage as marked on the Meter between the terminals or between any terminal and earth ground Remove test leads from the Meter before opening the Meter case Never operate the Meter with the back cover removed or the case ope...

Страница 6: ...false readings that can lead to electric shock and injury Check Meter operation on a known source before and after use When servicing use only specified replacement parts Adhere to local and national safety codes Industrial protective equipment must be used to prevent shock and arc blast injury where hazardous live conductors were exposed Do not hold the Current Probe anywhere beyond the tactile i...

Страница 7: ...pment is designed to protect against transients from energy consuming equipment supplied from the fixed installation such as televisions personal computers portable tools and other household appliances CAT III Equipment is designed to protect against transients in equipment in fixed equipment installations such as distribution panels feeders and short branch circuits and lighting systems in large ...

Страница 8: ...ry is below its required voltage Power Source 9 V battery NEDA1604 or 6F22 or 006P Battery Life Alkaline 33 hrs typical in A 65 hrs typical in GR 100 hrs typical in V e Auto Power Off The Meter will power itself off if there is no push button or rotary function switch operation for 30 minutes Turn the rotary switch to OFF before turning the Meter on again To deactivate this feature press the Peak ...

Страница 9: ...de Test Up to 2 V Min Max 500 ms acquisition time Input Impedance 10 MΩ Auto Shut off After 30 min 2 min Disabled in Min Max Can be disabled as a power up option hold down the peak button Auto range Available in the following measurement functions Volts Ohms Amps for 312 only Overload Protection 600 Vrms per EN61010 CAT III 600 V 1 Temperature Coefficient 0 1 x specified accuracy o C 18 o C or 28 ...

Страница 10: ... 5 2 3 6 11 13 8 7 9 10 14 aca11f eps A Current Sensing Clamp H V e Input Terminal B Peak Button I COM Terminal C Hold Button J REL Button 316 318 D Range Button 312 K Rotary Function Switch E AC DC Button 316 318 L Clamp opening Trigger F MIN MAX Button 316 318 M Conductor Alignment Marks G LCD N Tactile Indicator Figure 1 Feature Locations 318 shown ...

Страница 11: ...Diode continuity test function is selected F Manual range mode M Peak function is selected G DC mode N Peak function is selected Figure 2 LCD Explanation Making Measurements XWarning When measuring current center the conductor in the clamp using the alignment marks on the clamp To avoid electrical shock when making current measurements disconnect the test leads from the Meter The bargraph is for r...

Страница 12: ...uctor to be measured into the clamp 4 Close the clamp and center the conductor using the alignment marks 5 View the reading on the LCD TRUE RMS CLAMP METER 318 AC DC MIN MAX REL OFF 40A 400A 1000A V PEAK HOLD OFF PEAK HOLD T R U E R M S C L A M P M E T E R 3 1 8 A C D C M IN M A X R E L O F F 4 0 A 4 0 0 A 1 0 0 0 A V P E A K H O L D O F F P E A K H O L D Tactile Barrier aca13f eps Figure 3 Connec...

Страница 13: ...clamp and center the conductor using the alignment marks 6 View the reading on the LCD Measuring AC and DC Voltage 1 Turn the rotary function switch to V 2 Choose ac or dc by pressing A 316 318 only When using a 312 Meter turn the rotary function switch to K when measuring ac voltage turn the rotary function switch to L when measuring dc voltage 3 Connect the black test lead to the COM terminal an...

Страница 14: ...312 316 318 10 AC DC MIN MAX REL OFF 40 A 400 A 1000 A V PEAK HOLD OFF PEAK HOLD aca14f eps Figure 4 AC Voltage Measurement 318 shown ...

Страница 15: ...Users Manual 11 TRUE RMS CLAMP METER 318 AC DC MIN MAX REL OFF 40A 400A 1000A V PEAK HOLD OFF PEAK HOLD aca15f eps Figure 5 DC Voltage Measurement 318 shown ...

Страница 16: ...function switch to e Remove power from the circuit being tested 2 Connect the black test lead to the COM terminal and the red test lead to the Ve terminal 3 Measure the resistance by touching the probes to the desired test points of the circuit 4 View the reading on the LCD TRUE RMS CLAMP METER 318 AC DC MIN MAX REL OFF 40A 400A 1000A V PEAK HOLD OFF PEAK HOLD aca16f eps Figure 6 Measuring Resista...

Страница 17: ...COM terminal and the red test lead to the Ve terminal 3 Connect the probes across the circuit or component to be tested If the resistance is under 50 Ω the beeper will sound continuously designating a short circuit If the Meter reads OL the circuit is open TRUE RMS CLAMP METER 318 AC DC MIN MAX REL OFF 40A 400A 1000A V PEAK HOLD OFF PEAK HOLD TRUE RMS CLAMP METER 318 AC DC MIN MAX REL OFF 40A 400A...

Страница 18: ...l and the red test lead to the Ve terminal 3 Connect the black test lead to the cathode side and the red test lead to the anode side of the diode being tested 4 Read forward bias voltage value on the LCD 5 If the polarity of the test leads is the reverse of the diode polarity the LCD reading shows OL This can be used for distinguishing the anode side and cathode side of a diode TRUE RMS CLAMP METE...

Страница 19: ...Peak mode and begin displaying Peak values 3 Press the Peak button again to enter Peak mode and begin displaying Peak values 4 Press the Peak button for 2 seconds to return to normal operation If the rotary function switch is changed following calibration the calibration steps must be repeated before making another peak measurement Note The peak mode continuously updates the LCD to show maximum ma...

Страница 20: ...appears on the LCD 1 Before changing the battery switch the Meter off and disconnect the test leads 2 Open the back cover using a screwdriver 3 Replace the battery with a new 9 V battery 4 Close the back cover and fasten the screws Cleaning the Meter Periodically clean the Meter by wiping it with a dry cloth Do not use abrasives or solvents on this instrument Maintenance XWarning To avoid electric...

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