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Mastech CT300 User manual

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CT300
AC CURRENT TRANSDUCER
OPERATOR'S MANUAL
1. Safety Information
The AC current transducer has been design-ed according
to IEC -1010 concerning safety requirements for
hand - held current clamps for electrical measurement
and test.Follow all introduction and operating
require-ments to insure that the current clamp is used
safely and is kept in good operating condition.
1.1 Symbols
Important safety information,
refer to the operating manual.
Double insulation ( Protection classII)
2. Description
Refer to the Figure 1. and to the following numbered steps
to familiarize yourself with the AC current transducer.
Transformer Jaws
Designed to pick up the a.c. current
following though the conductor.
Hand Guard
Designed to protect user for safety.
2
01
Trigger
Press the lever to open the transformer
jaws.
3
02
3. Specifications
Accuracy is specified for a period of one year after
calibration and at 18°C to 28°C(64 F to 82 F) with
relative humidity to 80%. Accuracy specifications
are given as: of reading digits
° °
± % ±
1
2
3
RED
BLACK
CT300
05 HYS006874
This instrument must not be used on
uninsulated conductors at a voltage
greater than 250V ac rms. or 250V dc
Set the DMM at ACV function and a relevant
range.
Connect the plug of transducer with a DMM and
combined firmly.
Press the trigger to open transformer jaws and
clamp one conductor only, making sure that the
jaws is firmly closed around the conductor, then
read the reading from the digital display of DMM.
5.1
5.2
5.3
6. Maintenance
to keep the instrument clean, wipe the case with a damp
cloth and detergent, do not use abrasives or solvents.
Any adjustment, maintenance and repair shall be
conducted by a service personnel.
5. Ac Current Measurement
0403
3.1 General
CURRENT RANGE: 0.1A - 400A a.c. RMS
OUTPUT VOLTAGE LEVELS:
10mV/A: 1mV a.c. per 0.1 Amp a.c.
1mV/A: 1mV a.c. per 1 Amp a.c.
WORKING VOLTAGE:
600V CAT.II per IEC 1010 - 1
OPERATING TEMPERATURE:
0 to 50 <80% relative humidity°C °C
STORAGE TEMPERATURE: -20 to 60°C °C
TYPE OF SENSING:
induction coil sensing for AC current
MAXIMUM OUTPUT IMPEDANCE: 45Ω
MAXIMUM JAW OPENING: 29mm
MAXIMUM CONDUCTOR SIZE: 28mm
SIZE: 64(W)×143(L)×30(D)
WEIGHT: 185g
4. Precaution And Preparations
For Measurement
Dot not apply the voltage to the output
plugs.
Do not use or store this instrument in a high
temperature or high humidity environment
and do not store the unit indirect sunlight.
Do not measure current before the unit is
not combined with DMM.
If the instrument is used near noise
generating equipment, be aware that output
voltage may become unstable or get more
errors.
4.1
4.2
4.3
4.4
3.2 Electrical Specification
AccuracyRange
± ± 2.0% 0.5A
10mV/A
Frequency Response: 50-60Hz