The Megger BM11D and BM21 5 kV Insulation Resistance Testers are portable, battery-powered
The Megger BM11D and BM21 5 kV Insulation Resistance Testers are portable, battery-powered, high-voltage instruments that use the latest electronic design and technology. The instruments have user-friendly keypads with push-buttons to select test voltages of 500, 1000, 2500, and 5000 V dc. In addition to the standard test voltages, a variable voltage feature on the BM21 selects test voltages between 25 and 5000 V dc in 25-V steps.
Features
Analog/digital display
Multiple test voltages
Integral timer
Automatic discharge of equipment under test
Comprehensive battery state indicator
Applications
High-voltage power cables
Large motor/generator windings
Line and substation transformers
High-voltage buses
SPECIFICATIONS
MG817004
MG817005
Nominal Test Voltage (dc)
500, 1000, 2500, 5000 V
500, 1000, 2500, 5000 V; plus 25 - 5000 V in 25-V steps
Accuracy at 68°F (20°C)
±5% on 100 mΩ load
Insulation Resistance Range
Digital
10 kΩ to 50 GΩ @ 500 V
10 kΩ to 500 GΩ @ 500 V
10 kΩ to 100 GΩ @ 1000 V
10 kΩ to 1 TΩ @ 1000 V
10 kΩ to 250 GΩ @ 2500 V
10 kΩ to 2.5 TΩ @ 2500 V
10 kΩ to 500 GΩ @ 5 kV
10 kΩ to 5 TΩ @ 5 kV
Analog
100 kΩ to 1 TΩ @ all voltages
100 kΩ to 1 TΩ @ all voltages
Accuracy at 68°F (20°C)
±5% of reading 1 MΩ to 100 GΩ @ 5 kV
±5% of reading 1 MΩ to 1 TΩ @ 5 kV
Voltage Range
50 to 1000 V dc or ac
50 to 1000 V dc or ac (0 to 5000 V dc when testing)
Accuracy at 68°F (20°C)
±5%, ±1 V
Leakage Current Measurement
None
0.01 nA to 999 μA; Accuracy ±5% ±0.2 nA
Capacitance Measurement
None
0.01 to 10.0 μF
Timer
Automatic; 0 to 60 minutes
User selectable; 0 to 90 minutes
Short Circuit Current
2 mA nominal
Display
Analog/digital
Interference Rejection
1 mA r.m.s. per kV to a maximum 2 mA
Power Supply
Two rechargeable, sealed lead-acid batteries (12 V, 2 Ah) Battery Life: Typically 8 hours continuous, 16 hr charge time
Dimensions/Weight
6 H x 10 W x 14 D in. (152 H x 250 W x 350 D mm)/13 lb (5.6 kg) approximate
CAT NO.
MODEL
DEscRIPTION
AVAIL
PRICE
MG817004
BM11D
5kV INSULATION RESISTANCE TESTER
Yes
7,989,840
Includes three 10++ test leads, carrying case, test record cards, charging cord and instruction manual.
MG817005
BM21
5kV INSULATION RESIST. TESTER W/VARIABLE TEST VOLT.
Yes
8,532,000
Includes three 10++ test leads, carrying case, test record cards, charging cord and instruction manual.
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