Model TK30 Version 1.2 July 2002
2
Contents of Kit
•
Model MT330 True RMS MultiMeter
•
Model CA330 300A AC Current Clamp
•
Model 480172 AC Line Splitter
•
Model 40130 Voltage Detector
•
Set of 1000V Category III test leads
•
Type K thermocouple temperature probe
•
Model CA900 Carrying Case
•
Operation Manuals for the Models MT330, CA300, and TK30
Current Clamp with MultiMeter
The Current Clamp connects to the MultiMeter as shown and can be used to measure
current for the ranges listed in the Current Clamp’s specifications.
Operation
1. Connect the Current Clamp test
leads to the COM and V inputs of
the MultiMeter.
2. Set the MultiMeter to the
V
function
range
3. Press the DC/AC button to select
AC (“
AC
” appears in the display).
4. Press the RANGE button until the
milliVolt range is selected (“
mV
”
appears in the display).
5. If the anticipated current is less than 10A, zero the meter using the
REL
button. (see
zeroing note)
6. Clamp around the conductor under test and read the current measurement on the
meter’s LCD.
7. The Clamp outputs 1mV AC for each Ampere of current measured.
Note:
The zero offset voltage is approximately 5mV and this voltage is not linear. The
offset will affect low current measurements, but will have little affect on high current
measurements. For the best measurement accuracy, press the Relative button to
zero the meter for currents <10A. Do not zero the meter for currents higher than
10A.
Interpreting the Display
Display Current
005.0 mV
5 amps
020.0 mV
20 amps
250.0 mV
250 amps
3.999
300
AMP
AC
CL
AMP
ADAPTOR
OUTP
UT
VOL
TA
GE:
1mV
AC
Per
1A
AC
CA
TII
600V
CA300
