LEM HEME ISO 1000 Manuel D'utilisation page 5

Safety Regulations
The instrument has been designed to comply with IEC1010-2-032 Installation
Category (Overvoltage Category) III 600V Pollution degree 2 and
UL 3111-1. The instrument conforms with the EEC Low Voltage Directive
73/23/EEC and 93/68/EEC.
IEC 1010 is a safety standard which has the following features:
•
Installation categories I to IV relate the maximum working voltage to overvoltage
transients that can be expected in the measuring environment. For the
instrument, 600V CAT III, the maximum expected transients must not exceed
6kV peak.
•
In a pollution degree 2 environment the internal design of the instrument can
cope with transient conductivities due to condensation.
Safe operation of the instrument is the responsibility of the operator who
must be suitably qualified and/or authorised as defined above. Users of this
equipment and or their employees are reminded that Health and Safety
Legislation requires them to carry out valid risk assessments of all electrical
work, so as to identify potential sources of electrical danger and risk of
electrical injury such as from inadvertent short circuits. Where the
assessments show that the risk is significant, then the use of fused test leads
constructed in accordance with the HSE guidance note GS38 'Electrical Test
Equipment for use by Electricians' is advised.
If the instrument is used in a manner not specified by the manufacturer, then the
protection provided by the equipment may be impaired.
Maximum Safe Voltage
Current :- 600V MAXIMUM AC RMS or DC between uninsulated conductor and
ground and maximum frequency of 1kHz. This limitation applies to unisulated
conductors only.
Voltage:- 600V MAXIMUM AC RMS or DC between live conductor and ground.
600V MAXIMUM AC RMS or DC between V and COM terminals and a maximum
frequency of 1kHz.
Important Information
• The instrument is intended for indoor use only.
• Do not attempt to take any measurement of current or voltage higher than the
maximum range of the instrument.
•
The unit is not hermetically sealed and should NOT be brought into contact with
surface water.
• Frequently inspect the test leads and the instrument for damage. If the
instrument is physically damaged or does not function properly, it should not be
used.
USE ONLY SUITABLY RATED VOLTAGE TEST LEADS TO IEC 1010-2-031.
(600V CAT III Pollution Degree 2).
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