CATEGORIES
MEGGER BM5200 INSULATION RESISTANCE TESTER
- 1Tetra Ohms, 1.4 mA, 5 kV digital insulation tester with digital and analogue display
- Five test ranges; 250 V, 500 V, 1000 V, 2500 V and 5000 V
- Insulation (InS), Polarisation Index (PI) and variable timed test (t) modes
- Selectable DC or AC (incl. frequency) voltmeter functions
- Guard terminal to shunt surface leakage currents
- CATIII 600 V safety rating
Applicati on
Electrical insulating materials deteriorate with time leading to breakdowns and costly repair bills. Insulation resistance testers apply a regulated DC voltage across the insulation and measure current flow through it applying Ohmfs law to calculate insulation resistance. The current flows because no insulation material is perfect.
IR tester uses include:
- Product test and qualification
- Installation of equipment
- Routine maintenance
- Problem resolutions
Insulation testing with high voltage DC affects insulation polarisation such that consecutive testing without complete discharge of the unit under test will yield different results. Care should be taken to always employ the same process and technique of connecting to and testing an insulator to be able to trend results. It is important to record temperature of the insulation as well as IR values.
FEATURES AND BENEFITS
- Compact, rugged insulation resistance tester
- Easy operation and voltage range selection
- AC and DC voltmeter (25 V - 600 V)
- User settable IR test timer (default 1 min), (max. 19 m 50 s)
- Soft carry case for instrument and leads
- Quick start and full user guide
- Locking HV insulated plugs for additional safety
- Shutters across terminals prevent accidental ingress of dirt and other objects
SPECIFICATIONS :
- Insulation range 100 k Ohms to 1 T Ohms
- Nominal test voltages 250 V, 500 V, 1000 V, 2500 V, 5000 V
- Terminal voltage accuracy <1000 V 0...+10% of nominal test voltage / 1000 V 0...+5% of nominal test voltage