GCM-407 User Manual
GCM-407 User Manual
I. Overview
GCM-407 is a portable, true 6000 count, auto range
clamp ammeter with a simulation bar. Featuring a
large scale integrated circuit, Σ/∆ analog-digital
converter, full-function on-screen display, full-range
overload protection and a unique design has given
this specific clamp ammeter superior performance.
The clamp ammeter is applicable to the following
measurements:
AC/DC voltage,
AC current,
resistance, diode, continuity, capacitance,
data-hold, maximum/minimum value measurement,
relative value measurement, flashlight function,
VFC function, NCV function, under-voltage display
and an automatic shutdown function.
The instruction manual includes relevant safety
information and warning indicators. Please read
them carefully and strictly observe all warnings and
notes.
Warning:
Prior to using the clamp meter, please read the
relevant "Safety operation guidelines" carefully.
II. Open-case Inspection
Unpack and take out the instrument. Carefully
check that the following accessories are not
damaged or missing.
1.An operating instruction manual
2.Test leads
3.Carrying case
If anything is missing or damaged, please contact
your GW Instek distributor. If the instrument is not
used in an appropriate manner the safety protec-
tions could be impaired. The unit can be used for
MAINS measurements up to CATII 1000V or CATIII
600V according to IEC 61010-031.
III. Safety Operation Guidelines
Please note the “warning signs” and notes.
Warnings indicate a condition or action that may
cause a threat to the user or may damage the
instrument or the equipment under test.
This meter complies with EN61010-1, 61010-2-032,
61010-2-033, Pollution Degree 2, Overvoltage
Category (CATII 1000V, CATIII 600V) and double
insulation standards.
Conforms to UL STD 61010-1 and IEC STD
61010-2-032
Certified to CSA STD C22.2 No.61010-1 and
61010-2-032.
This product has been tested to the requirements
of CAN/CSA-C22.2 No. 61010-1, second edition,
including Amendment 1.
CAT II: Applicable to test and measurement circuits
connected directly to utilization points (socket
outlets and similar points) of the low-voltage MAINS
installation.
CAT III: Applicable to the test and measurement
circuits connected to the distribution part of the
building’s low-voltage MAINS installation.
1. Check the clamp ammeter and test leads before
use. Refrain from using the clamp if the clamp is
damaged in anyway.
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Summary of Contents for GCM-407
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