25
26
27
28
l
Temperature measurement
1.
Set the rotary switch to “TEMP” position.
2.
Press SELECT to select Hi or normal test mode.
3.
In Hi mode using type K thermocouple to measure temperature.
4.
Plug the red leg ( + ) to “V
V
Hz” terminal and the black leg ( - ) to “COM” terminal and reading
display.
5.
Press SELECT to “Hi” off the reading is room temperature.
6.
Measurement range : -50
0
C -1300
0
C, -58
0
F-2502
0
F.
7.
Display : primary
0
C, secondary
0
F.
Figure 13.
temp. measurement
l
Diode and continuity check
Caution
To avoid possible damage to the meter or to the equipment under test, disconnect circuit power
and discharge all high-voltage capacitors before checking diodes.
1.
Set the rotary switch to “
” position .
2.
Connect the black test lead to “ COM” terminal and the red test lead to “V
V
Hz” terminal.
3.
For diode checking, touch the red test lead to the positive side of the diode and the black test lead
to the negative side. The meter can display diode voltage drop.
A good product a forward bias reading of 0.5V to 0.8V.
4.
Reverse the probes and measure the voltage across the
diode again if the diode good “OL” is displayed.
Note :
(1) Near 0V drop is displayed in both directions the diode
shorted .
(2) “OL” is displayed in both directions the diode opened.
5.
For continuity checking, while testing continuity, the
beeper will sound if the resistance falls below 50
V
.
Figure 12. freq. and rotational
speed measurement
l
Square Wave Output
This meter can output square wave that frequency is selectable by 2nd VIEW 0.5000Hz / 1.0000Hz /
2.0000Hz / 10.000Hz / 50.000Hz / 60.240Hz / 74.63Hz / 100.00Hz / 151.50Hz / 200.00Hz / 303.00Hz /
606.10Hz / 1.2500kHz / 1.6660kHz / 2.5000kHz / 5.0000kHz.
1.
Set the rotary switch to “
OUT ” position.
2.
Connect the black test lead to “COM” terminal and the red test lead to “V
V
Hz” terminal.
3.
Press SELECT to select the duty of 1% to 99%. The square wave output from “COM” and “V
V
Hz”
terminal or test leads.
4.
Primary and secondary display as Table 10.
Table 10. primary and secondary display
Function
Primary
Secondary
[press 2nd VIEW]
[press SELECT]
OUT
Hz
%
5.
Press 2nd VIEW more than 2 seconds the meter return to
606.10Hz / 50% duty output state .
Figure 15.
square wave output
Electrical Specifications
Accuracy is specified for one year after calibration at operating temperatures of 18
0
C to 28
0
C, with
relative humidity at 0% to 75%
Accuracy specifications take the form of : ±(a% of r number of least significant digits).
Table 11. DCV
Range
Resolution
Accuracy
Note
80mV
1
m
V
800mV
10
m
V
8mV
0.1mV
± (0.05% rdg + 10)
Input impedance : 80mV - 800mV>1000M
V
80V
1mV
8V - 1000V : 10M
V
800V
10mV
1000V
0.1V
± (0.08% rdg + 10)
Table 12. ACV ( True RMS )
Range
Resolution
Accuracy
50Hz / 60Hz
50Hz - 1kHz
1kHz - 10kHz
10kHz - 20kHz
80mV
1
m
V
±(0.8% rdg + 10)
±(1.0% rdg + 10)
±(3.0% rdg + 10)
±(8.0% rdg + 10)
800mV
10
m
V
±(0.8% rdg + 10)
±(1.0% rdg + 10)
±(3.0% rdg + 10)
±(5.0% rdg + 10)
8V
0.1mv
±(0.8% rdg + 10)
±(1.0% rdg + 10)
±(3.0% rdg + 10)
±(5.0% rdg + 10)
80V
1mV
750V
10mV
50Hz - 400Hz : ±(1.0% rdg + 5)
Input impedance : 8mV - 800mV>1000M
V
, 8V - 1000V, 10M
V
, Parallel capacitance<100pF
