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18

MOM200A/600A

ZP-BB04E

BB0141NE

6 SPECIFICATIONS 

S

pecifications 

Specifications MOM200A

Specifications are valid at nominal input voltage and an ambi-
ent temperature of +25°C, (77°F). Specifications are subject to 
change without notice.

Environment

Application field

The instrument is intended for use in 
high-voltage substations and indust-
rial environments.

Temperature

Operating 115 V

0°C to +50°C (32°F to +122°F)

Operating 230 V

0°C to +40°C (32°F to +104°F)

Storage & transport

-40°C to +70°C (-40°F to +158°F)

Humidity

5% – 95% rH, non-condensing

CE-marking

LVD

2006/95/EC

EMC

2004/108/EC

General

Mains voltage

115 / 230  V  AC,  50 / 60  Hz

Power consumption

1610 VA (max)

Protection

Miniature circuit breakers, thermal 
cut-outs

Dimensions

Instrument

280 x 178 x 246 mm (11” x 7” x 9.7”)

Transport case

560 x 260 x 360 mm  
(22” x 10.2” x 14.2”)

Weight

14.6 kg (32.2 lbs) 26 kg (54.1 lbs) 
with accessories and transport case

Current cables

2 x 5 m (16 ft), 25 mm²

Sensing cables

2 x 5 m (16 ft), 2.5 mm²

Measurement section
Resistance

Range

0 – 1999 µΩ 
0 – 19.99 mΩ

Resolution

1 µΩ 
10 µΩ

Inaccuracy

±1% of r 1 digit 

Output

Current

0 – 200 A DC

Open circuit voltage

4.7 V DC

Current shunt output

10 mV / 100 A ±0.5%, max 20 mV 
out, max 10 V to protective earth 
(ground)

Max. load capacity

Current adjustment set to 100%

Output 
current

Min. 
output 
voltage

Max. 
load 
time

Rest 
time

Input 
current at 
115 / 230  V  AC

100 A DC

3.8 V DC

5 min. 
15 min.

15 min. 
60 min.

200 A DC

3.0 V DC

20 s

5 min.

14  A / 7  A

Specifications MOM600A

Specifications are valid at nominal input voltage and an ambient 
temperature of +25°C, (77°F). Specifications are subject to 
change without notice.

Environment

Application field

The instrument is intended for use in 
high-voltage substations and indust-
rial environments

Temperature

Operating

0°C to +50°C (32°F to +122°F)

Storage & transport

-40°C to +70°C (-40°F to +158°F)

Humidity

5% – 95% rH, non-condensing

CE-marking

LVD

2006/95/EC

EMC

2004/108/EC

General

Mains voltage

115 / 230  V  AC,  50 / 60  Hz

Power consumption (max)

115 V, 4370 VA
230 V, 7360 VA

Protection

Miniature circuit breakers, thermal 
cut-outs

Dimensions

Instrument

356 x 203 x 241 mm  
(14” x 8” x 9,5”)

Transport case

610 x 290 x 360 mm  
(24.0” x 11.4” x 14.2”)

Weight, 115 V model

25 kg (55.1 lbs) 
43.1 kg (95 lbs) with accessories and 
transport case

Weight, 230 V model

24.7 kg (54.5 lbs), 42.8 kg (94.4 lbs) 
with accessories and transport case

Current cables

2 x 5 m (16 ft), 50 mm²

Sensing cables

2 x 5 m (16 ft), 2.5 mm²

Measurement section

Resistance

Range

0 – 1999 μΩ

Resolution

μ

Inaccuracy

±1% of r 1 digit  
(at 100 – 600 A test current)

Output, 115 V model

Current

0 – 600 A DC

Open circuit voltage

5.2 V DC

Current shunt output

10 mV / 100 A ±0.5%, max 60 mV 
out, max 10 V to protective earth 
(ground)

Output, 230 V model

Current

0 – 600 A DC

Open circuit voltage

9 V DC

Current shunt output

10 mV / 100 A ±0.5%, max 60 mV 
out, max 10 V to protective earth 
(ground)

Summary of Contents for MOM200A

Page 1: ...WWW MEGGER COM User s Manual Art No ZP BB04E Doc BB0141NE V06 2015 MOM200A 600A Micro ohmmeters ...

Page 2: ......

Page 3: ...ptions or software listings that disclose source code are for informational purposes only Reproduction in whole or in part to create working hardware or software for other than Megger Sweden AB products is strictly prohibited except as permitted by written license agreement with Megger Sweden AB TRADEMARK NOTICES Megger and Programma are trademarks registered in the U S and other countries All oth...

Page 4: ...rol panels 10 Control panel MOM200A 10 Control panel MOM600A 11 4 Operating instructions 12 External measuring instrument 13 Troubleshooting 13 5 Application examples 14 Measuring resistance in a breaker 14 Measuring resistance at bus bar joints 15 Expanded measuring range 16 Application example 16 6 Specifications 18 Specifications MOM200A 18 Specifications MOM600A 18 ...

Page 5: ...BB0141nE ZP BB04E MOM200A 600A 5 ...

Page 6: ...ent to the object being tested After you have adjusted the instrument to provide the desired current through the test object 100 A for ex ample the actual voltage drop across the test object will be measured automatically and all you have to do is press a button to display the actual resistance High current is generated and sent out by the instru ment during measurement A miniature circuit breaker...

Page 7: ...BB0141nE ZP BB04E MOM200A 600A 7 1 Introduction ...

Page 8: ...e current transformer cores after DC has passed through their current trans former 3 Never open a circuit breaker while a micro ohmmeter is connected to it 4 Current continues to flow for a while after the micro ohmmeter is turned off How long it con tinues depends on the ratio of the components in the L R circuit 5 Always connect protective earth ground 6 Always use safety connecting leads 7 Alwa...

Page 9: ...um current for the equip ment and the cable shall meet the requirements of IEC 60227 or IEC 60245 Mains supply cables certified or approved by a recognized testing au thority are regarded as meeting this requirement 2 Refer all servicing to authorized personnel 3 If you need to return the instrument please use either the original crate or one of equivalent strength ...

Page 10: ...rminal SENSE 3 Negative current output IOUT 4 Resistance button R 5 Current shunt terminal SHUNT 6 Miniature circuit breaker for mains F1 7 Miniature circuit breaker for variable trans former 8 Grounding terminal 9 ON OFF switch 10 Mains inlet 11 LED resistance 12 LED current 13 LED thermal cut out 14 Resistance range switch 15 Test current switch 16 Variable transformer ...

Page 11: ...erminal SENSE 3 Negative current output IOUT 4 Resistance button R 5 Test current push buttons 6 Current shunt terminal SHUNT 7 Miniature circuit breaker for mains F1 8 Grounding terminal 9 Mains inlet 10 LED resistance 11 LED current 12 LED thermal cut out 13 Miniature circuit breaker 17 A F3 MOM600 115 V only 14 ON OFF switch 15 Variable transformer ...

Page 12: ...disconnected from the mains while making connections 2 Ground one side of the test object 3 Ground the micro ohmmeter 4 Connect the two current cables on two sides of the test object 5 Connect the two sensing cables using the same polarities as those used for the current cables on two sides of the test object and as close to the test object as possible Note The sensing cables must be connected ins...

Page 13: ...reason you want to use an external measuring instrument to set the measurement cur rent you can connect it to the current shunt Voltage across the current shunt is proportional to the mea surement current flowing through the test object 10 mV per 100 A Troubleshooting Fault Cause Remedy Display shows only a 1 at left Current range set on instrument has been exceeded If possible select ano ther tes...

Page 14: ...t the desired current 100 A for example using the Test current switch MOM600A Select the desired current 100 A for example using the proper Test current push button 8 Clear 0 set the instrument by turning the knob 16 on the variable transformer down to 0 whereupon it will enter the current generation mode and LED 12 will light up 9 Increase the current as close as possible 1 A to the desired value...

Page 15: ...witch MOM600A Select the desired current 100 A for example using the proper Test current push button 8 Clear 0 set the instrument by turning the knob 16 on the variable transformer down to 0 whereupon it will enter the current generation mode and LED 12 will light up 9 Increase the current as close as possible 1 A to the desired value 100 A in this case which was the current you just selected Set ...

Page 16: ...nnected close to the test object 5 Connect the micro ohmmeter to the mains 6 Turn the instrument s ON OFF switch ON 7 Select the desired current 400 A for exam ple using the Test current push buttons on the MOM600A 8 Clear 0 set the instrument by turning the knob 16 on the variable transformer down to 0 whereupon it will enter the current generation mode and LED 12 will light up 9 Increase the cur...

Page 17: ...BB0141nE ZP BB04E MOM200A 600A 17 6 Specifications ...

Page 18: ...est time Input current at 115 230 V AC 100 A DC 3 8 V DC 5 min 15 min 15 min 60 min 200 A DC 3 0 V DC 20 s 5 min 14 A 7 A Specifications MOM600A Specifications are valid at nominal input voltage and an ambient temperature of 25 C 77 F Specifications are subject to change without notice Environment Application field The instrument is intended for use in high voltage substations and indust rial envi...

Page 19: ...ge Max load time Rest time Input cur rent 100 A DC 4 6 V 8 A 300 A DC 3 8 V 1 5 min 15 min 20 A 600 A DC 2 6 V 10 s 5 min 38 A Max load capacity 230 V model Current adjustment set to 100 Output current Min output voltage Max load time Rest time Input cur rent 100 A DC 8 3 V 6 A 300 A DC 7 2 V 2 5 min 15 min 16 A 600 A DC 5 6 V 15 s 5 min 32 A ...

Page 20: ...HINA FRANCE GERMANY INDIA INDONESIA JAPAN KINGDOM OF BAHRAIN KOREA MALAYSIA PAKISTAN PHILIPPINES RUSSIA SINGAPORE SOUTH AFRICA SPAIN SWEDEN SWITZERLAND TAIWAN THAILAND UNITED ARAB EMIRATES USA VIETNAM Battery Test Equipment Cable Fault Locating Equipment Circuit Breaker Test Equipment Data Communications Test Equipment Fiber Optic Test Equipment Ground Resistance Test Equipment Insulation Power Fa...

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