7
WARNING
WARNING
6. FREQUENCY MEASUREMENT Hz (See Figure 8)
(1) Insert test leads
- Insert the black test lead into the
COM input and the red test lead into the “Hz ”
input.
(2) Set
Hz
function
- Turn the dial to the
Hz function.
(3) Test & Measure
- Place the red and black test leads at both the positive and negative points to be
measured. The clamp meter will automatically select the proper range and the display will show the True
RMS value of the measurement being taken while the slave display shows the frequency value of the AC
voltage.
The maximum input range shall not exceed 30Vrms when measuring frequency.
7. DC CURRENT MEASUREMENT
A
(See Figure 9)
(1) Set A function
- Turn the dial to the
A
function.
(2) Function ZERO Reset
- The clamp meter will sense the geomagnetism and magnetic field around it and
may show a range of numbers before testing. Before test & measuring, be sure to reset the DC current
function to 0 by pressing the
ZERO key to clear the clamp meter.
(3) Test & Measure
- Using the trigger, open the clamp meters jaw and clamp around the conductor. Make
sure that the conductor is positioned in the center and that the flow of current matches the arrow located
between the jaws on the body of the clamp meter. The clamp meter will automatically select the proper
range and the display will show the value of the measurement being taken. The display will also show a
positive or negative measurement depending on the direction of the current.
The maximum measured current should not exceed 2000A DC when measuring DC
current.
8. AC CURRENT MEASUREMENT
Ã
(See Figure 10)
(1) Set à function
- Turn the dial to the
à function.
(2) Test & Measure
- Using the trigger, open the clamp meters jaw and clamp around the conductor. Make
sure that the conductor is positioned in the center and that the flow of current matches the arrow located
between the jaws on the body of the clamp meter. The clamp meter will automatically select the proper range
and the display will show the True RMS value of the measurement being taken, while the slave display shows
the frequency value of the AC current.
Note: When measuring AC current below 500Hz, set the dial to ˜V + Lo. This is the low pass filter, it will filter
high-frequency interference caused by frequencies above 7.5KHz to ensure a stable reading.
The maximum measured current should not exceed 2000A AC when measuring AC
current.
9. CURRENT SIGNAL OUTPUT FUNCTION (See Figure 11)
The clamp meter is designed with a signal output function. The current signal measured by the clamp
meter can be converted into a voltage signal with the ratio of 1A/1mV. This can be measured through the
output terminal where the user can observe the wave form of the current signal by connecting the output
signal to an oscilloscope.
DO NOT connect more than a 5V connection to the output terminal.
10. SELECT KEY
The function
SELECT key is used to switch between functions at the
Ω
,
,
measurement settings.
11. MAX/MIN
Press the
MAX/MIN key to obtain the maximum or minimum value. After pressing the key, the maximum value hold function is
activated, the screen will hold the current maximum measured value.
Press the
MAX/MIN key again and the minimum value hold function will be activated and the screen will hold the current minimum
measured value. Both functions can be switched by pressing the key. Press and hold the
MAX/MIN key for 2 seconds disable
MAX/MIN measurement mode.
Figure 8
Figure 9
WARNING
Figure 10
WARNING
Figure 11