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Megger BM403/2 up to 1kV
- Fully complies with the requirements of BS 7671, HD 384 and IEC 364
- 1mA insulation output current
- 200 mA short circuit current output
- Remote control switched probe
- Optional RS232 port
- Optional current clamp accessory
- Waterproof and dustproof to IP54
The MEGGER® BM4003/2 Series of autoranging insulation and continuity testers,
provides simplicity of use in a hand-held instrument, which fully complies with
British and International Wiring Regulations. The ease of use and comprehensive
s p e c i fications are achieved using the latest electronic design and display
t e c h n o l o g y .
The analogue/digital LCD incorporates the benefits of electronic arc analogue
indication with unambiguous digital readings. The analogue scale helps to make
rapid identification of insulation condition, and to monitor variable readings,
and is complemented by the precision and simplicity of a digital d i s p l a y .
The series offers a range of single, dual and multi-voltage variants to suit
the user’s application. Each range conforms to BS 7671 (formerly the 16th
Edition IEE Wiring Regulations) and International standards IEC 364 and HD 384.
The insulation ranges output the nominal test voltage when loaded with 1 mA as
specified within these standards. The continuity ranges have a short circuit
test current of at least 200 mA in order to comply with the requirements of
European harmonisation and international documentation. Also, the hands free
continuity ranges have the facility to null the resistance of the test leads
enabling direct readings of low resistance to be taken. A continuity buzzer is
included on the second continuity range.
In addition to the insulation and continuity ranges, the BM403/2 series has a
resistance range which measures up to 100 kW on the digital scale and up to 10
MW on the analogue scale. Due to the low test voltage and current of this range,
it can be used to test circuits with sensitive equipment connected, without
causing damage.
Two voltage ranges measure up to 50,0 V and 600 V a.c. or d.c. respectively,
and indicate the presence of negative d.c. A voltage warning is provided in
these models, alerting the user to the presence of external voltage greater than
25 V, by displaying the voltage level, even when measuring on insulation and
continuity ranges. The voltage range will indicate if capacitive charge remains
after a test, and will monitor the automatic discharge. Two non
voltage-measuring models (BM402/2 and BM404/2) are available which generally
precludes the use of fused test leads. To alert the user of the presence of
external voltage, the non-voltage measuring instruments (the BM402/2 and
BM404/2), will emit a beep and the analogue arc and ‘V’ symbol will flash.
On all models testing is inhibited if 55 V is detected. Hands free operation is
offered as standard on all ranges except the insulation ranges. Locking and
non-locking test buttons are provided with each instrument for user selection.
Use of the non-locking button is recommended to prevent accidental mis-use and
injury, and in cases where continuous operation of an insulation test is
required the locking button can be fitted. Alternatively the optional accessory
Switched Test Probe SP1 can be used enabling remote operation of the test button
from the negative test probe.
The BM400/2 series is rugged, and therefore suited to tool bag treatment, as
well as having an IP54 environmental protection rating which ensures product
reliability in wet and dusty conditions. Exceptional battery life is provided by
six cells housed in separate battery compartment .
The instruments are designed to IEC 1010-1, VDE0411 and BS4743 safety
standards.
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