상품 상세보기 : 저항측정기 Ohm Meters - BD121021 Automated Insulation Tester

The Megger® BM25 is a compact,automated 5 kV Insulation Tester,used to carry out Polarization Index

The Megger® BM25 is a compact, automated 5 kV Insulation Tester, used to carry out Polarization Index, Step Voltage and Dielectric Discharge diagnostic tests as well as standard Insulation Test up to 5 TOhms.

Results and test options are shown on a large, clear analogue/digital display for both practicality and precision. The BM25 combines the rapid assessment of changing readings with the precision and clarity of a digital readout. The BM25 also provides an optically isolated RS232 port for the direct downloading of test results.

Features

Automatic testing
Polarized index and step voltage tests voltage tests
RS232 download capability
Insulation resistance measured to 5 T Ohms
Dielectric discharge test for multilayer insulation
Robust field tester, weatherproof to IP54
Large custom display with analog and digital readouts
0 to 90 minute Timer
Holds the CE mark

SPECIFICATIONS

Insulation Resistance Ranges	10 kΩ to 5 TΩ digital
Insulation Resistance Ranges	100 kΩ to >1 TΩ
Accuracies (0°C to 30°C)	±5% 1 MΩ to 1 TΩ at 5 kV
	From 100 kΩ to 1 MΩ and 1 TΩ to 5 TΩ ±20%
	Upper limits reduced pro-rata at lower voltages
	For extended temperature range (-20°C to +50°C) percentage error doubles
Test Voltages (D.C.)	500 V, 1000 V, 2500 V, 5000 V and variable in 25 V steps to 5000 V
Test Voltage Accuracy	±5% of nominal for load resistance >10 MΩ
Short Circuit Current	2 mA nominal
Leakage Current	0.01 nA to 999 nA ±5% ±0.2 nA
Capacitance	0.01 μF to 10.0 μF ±15% ±0.03 μF
Voltage measurement	50 V to 1000 V a.c. or d.c. (Does not distinguish between a.c. and d.c.)
Voltage accuracy	±5% ±1V
Interference Rejection	1 mA rms per kV Test Voltage up to 2 mA maximum
Guard terminal	Guards out parallel resistance down to 250 kΩ
Capacitance response	<5 secs/μF to charge to 5 kV
Capacitance response	<2 secs/μF to discharge to <50 V
Power Supply	Two rechargeable sealed lead-acid batteries (12 V, 2 Ah). Battery life typically 8 hrs' continuous testing
Power Supply	Built-in charger operates from 95 V to 265 V a.c., recharge time: 8 hrs to 90%, 16 hrs to 100%
Weatherproof	IP54 with charging cover closed
RS232	Optically isolated and protected to IP54
Safety	Maximum continuous overload up to 1 kV rms, Double Insulation to IEC 1010-1 (1992), EN 61010 (1993) to installation category III, 500 V phase to phase and 300 V phase to earth.
EMC	Meets EN 50081-1 and EN 50082-1 (1992) covering both Electromagnetic emissions and susceptibility
Dimensions/Weight	344 mm x 245 mm x 158 mm/5.6 kg

CAT NO.

MODEL

DEscRIPTION

AVAIL

PRICE

BD121021

BM25

ANALOG/DIG 5 kV MEG 500, 1000,2500, 5000 V 5 TOhms

Yes

9,709,200

Automated Insulation Tester — Includes high voltage 3M test lead, mains supply lead for charging, accessory pouch, PC connector lead, 1.8 m long (9 way D female to 9 way D female), BM 25 Download 3 1/2" disk, & test record cards.