1. Introduction:
Thank you very much for selecting .
LUMEL S.A. iI
s the leading manufacturer of Electrical and Electronics
state-of-art measuring instruments.
These clamp meters are manufactured as per IS 13875
2. Safety features and safety precautions
Please note the following safety precautions:
You have chosen a Clamp meter which provides you a very high degree
of safety. The digital clamp meter manufactured
and tested in compliance with the safety standard IEC 61010-1:2001 /
DIN EN 61010-1:2001. In case of incorrect use or careless handing,
the safety of both user and clamp meter is not assured.
NC10
For proper use and safe handling,it is absolutely necessary to read and
understand the operating instructions before using the clamp meter.
300A/1000A
The clamp meter must be operated only by persons who understand
the danger of shock hazards and are aware of the necessary safety
precautions. Shock hazards exist wherever voltages of more than
30V (TRMS) are present.
Do not work alone in shock hazardous environment while carrying
out measurement.
The maximum permissible voltage between any of the terminal
sockets (7) and ground is 1000V.
Take into account that unexpected voltages can occur on device
under test (e.g. defective instrument). For example, capacitors may
be charged to a dangerously high voltage.
Verify that the test leads are in good condition, e.g.no cracked
insulation, no open circuits in the leads or connectors.
This clamp meter must not be used for measurements on circuits with
corona discharge (high voltage).
composite voltages may exist there.
Be particularly careful when measuring on HF circuits. Dangerous
Measurements under moist environmental conditions are not
permitted.
For safe voltage measurements in power systems upto 1000V, we
recommend the KS30 measuring adapter, which is available as an
accessory. Its internal resistance limits the measuring current in the
case of overvoltage, in correct operation and safely suppresses
sparking from spark gap. Also refer to Section "8.1 Voltage
measurement on electrical systems up to 1000V with KS30
measuring adapter.
Do not overload the measuring ranges beyond their allowable
capacities. Limit values are given in specifications. Ref. Chapter 16.
and DIN 43751
CAT I:
II:
Measurements in electrical circuits which are not directly
connected to the mains: for example electrical systems in motor
vehicles and aircraft, batteries etc.
circuits
CAT
CAT III:
CAT IV
Measurements in electrical w
Measurements at power sources for low-voltage installations,
m
hich are electrically connected
to the low-voltage mains:with plugs, e.g. at home, in the office or
laboratory etc.
Measurements in building installations, stationary power
consumers, distributor terminals, devices connected permanently
to the distributor
:
eters, mains terminals, primary over voltage protection devices.
Meaning of categories and their significance per IEC 61010-1
