Megger BT51 User manual

M
Digital Milliohmmeter
BT51
USER GUIDE
GUIDE DE L’UTILISATEUR
GEBRAUCHSANLEITUNG
GUÍA DEL USUARIO

3
Safety Warnings 2
General Description 4
Applications 5
Specification 6
Operation 7
Warning 7
The detachable lid 7
Performing a test 7
Using alternative leads 8
Charging the battery 8
Outline Diagram 9
Mode d’Emploi 10
Kurzanweisungen 11
Instrucciones Resumidas de Uso 12
Contents

4

5

6
Specification
Ranges 2000 mΩresolution 1 mΩ
20,000 mΩresolution 0,01 mΩ
Test current 2 A to 2,5 A at any reading
Accuracy (0˚C to 50 ˚C) ± 1% ± 2 digits
Display 31⁄2 digit L.E.D.
Temperature Range Operating 0 ˚C to +50 ˚C
Storage –20 ˚C to +50 ˚C
Protection Relay protection for up to 240 V a.c. power source applied
240 V model 100 mA (T) fuse 20 mm x 5 mm ceramic (For charging circuit)
115 V model 250 mA (T) fuse 20 mm x 5 mm ceramic (For charging circuit)
Power Supply Internal 4 Ah NiCd rechargeable cells and charging unit.
Normal charging time at 240 V is 10 hours
Safety The instruments meet the requirements for double insulation
to IEC 61010-1.
E.M.C. In accordance with IEC 61326-1
Dimensions 344 mm (131⁄2ins) x 245 mm (95⁄8ins) x 158 mm (61⁄4ins)
Weight 4,5 kg (10 lb)
Cleaning Wipe disconnected instrument with a clean cloth dampened
with soapy water or Isopropyl Alcohol (IPA).
Operational uncertainties Refer to www.megger.com

7

8

9

10