The Megger BM15 is a compact 5 kiloVolt insulation tester that is easy to use & provides accurate and quick readings for insulation resistance.
The Megger BM15 is an analogue insulation resistance tester that can be used to measure from 100kΩ up to 20GΩ with four test voltages of 500V, 1kV, 2.5kV and 5kV.
Suitable for use both indoors and outdoors thanks to a rugged protective case, the Megger BM15 can be used absolutely anywhere you need it. With safety recessed terminals built-in and long connectors, the BM15 can be connected up safely to a wide variety of installations such as machinery, transformers, switchgear, cables and others.
When testing long term, the BM15 has a locking button to make these testing procedures easier to perform. It is also possible to use non-locking testing as well.
A scale plate overlay can also be added to the BM15, allowing quick evaluation of go/no go testing to be performed. This enables the user to evaluate the safety of the system and decide whether testing can be safely performed or not.
Insulation is crucial for electrical system safety, providing barriers to deadly live conductors. Electrical insulation deteriorates from effects of heat, sunlight and moisture. Reductions in insulation resistance values may lead to potentially dangerous situations caused by electric shock, or fire caused by arcing. If insulation resistances are monitored regularly, low irregular values may be investigated before causing damage, inconvenience & high costs associated with equipment repair downtime.
- Telecommunications Engineers
- Maintenance Engineers
- Electrical Contractors
- Cable Manufacturers
- Railway Companies
- Gas & Water Utilities
- Mining Companies
|Insulation Range||100 kOhms to 20 GOhms (also 0 Ohms and infinity)|
|DC Test Voltages||500, 1000, 2500 & 5000 Volts|
|Accuracy of Test Voltage||+/-5 percent nominal testing voltage on 20 MOhm load|
|Stability of Test Voltage||below +/-1 percent (180 RPM – 240 RPM MJ15)|
|Insulation Accuracy||(@ 0 – 30 deg. C) +/-2.5 percent full scale deflections|
|(Current) Short-Circuit||1.5 milliAmps +/- 0.5 milliAmps|
|Max. Load Capacitance||5 microFarads|
|Interference Rejection||1 milliAmp RMS @ 50 – 60 Hertz|
|Discharging Resistor||below 500 kOhms|
|Range||0 – 600 Volts AC|
Indication for DC
|Accuracy||+/- 2.5 percent fsd AC (w/ rotary switch – V position)|
|Rating for Overload||720 Volts DC or AC|
|Scale Length||2.8 inches (72 millimeters) (96 deg. )|
|BM15||8 AA size cells (rechargeable or LR6)|
|MJ15||Low-voltage brushless generator & 8 – AA size cells (rechargeable or LR6)|
|Battery operation time||2000 five sec. tests @ 5 kiloVolts on 100 MOhm load|
|Battery Indication||Loaded batt. test|
|Safety||Double insulation per EN61010 (1995) IEC 1010-1 (1995) compliant to installation Cat-III***, 300 Volts phase – earth(ground) or 600 Volts Cat-I*|
***Relating to transient overvoltages likely found with fixed-installation electrical wiring.
*Relating to transient overvoltages likely found with special equipment and equipment parts, electronic, telecommunication, etc.
|Fuse – Non Replaceable||1 A, 250 Volts, HBC (F) type (20 x 5 millimeters) IEC 127/1|
Fuse protects instrument against faults which occur while using rechargable battery.
|EMC EN 50081-1 & EN50082-1 (1992) compliant w/ max. error||+/-5 percent fsd in high R.F. areas|
|Operation||32 to 86 deg. F (0 to 30 deg. C) full specification|
-4 to 122 deg. F (-20 to 50 deg. C) w/ temp. coefficient
+/-0.1 percent/ deg. C
|Storage||-13 to 149 degrees F (-25 to 65 degrees C)|
|Humidity||RH 90 percent @ 104 degrees F (40 degrees C)|
|Size||8.9 x 6.3 x 4.5 inches|
(220 x 160 x 115 millimeters)
|Weight||3.5 pounds (1.6 kilograms) or 4 pounds (1.8 kilograms) w/ battery holder & cells|