4-2. Measurement Specifications
Accuracy of specifications apply for 1 year after purchase when
operated in a temperature of 18
O
C to 28
O
C (64
O
F to 82
O
F) and a
relative humidity of less than 75%.
Basic electrical specifications are given as +[(% of reading) +
(number of least significant digits)].
DC Voltage
200mV
100
m
V
+(0.25% of rdg+2dgt)
2V
1mV
+(0.8% of rdg+2dgt)
20V
10mV
+(0.8% of rdg+2dgt)
DC 1000V
200V
100mV
+(0.8% of rdg+2dgt)
or PEAK AC
1000V
1V
+(0.8% of rdg+2dgt)
NORMAL MODE REJECTION RATIO: greater than 46dB at 50Hz, 60Hz (1k unbalance)
Overload Protection: 1100VDC or peak AC for 50 seconds.
AC Voltage
200mV
100
m
V
+(1.0% of rdg+4dgt)
2V
1mV
+(1.0% of rdg+4dgt)
20V
10mV
+(1.0% of rdg+4dgt)
AC 750V max.
200V
100mV
+(1.0% of rdg+4dgt)
50Hz - 400Hz
750V
1V
+(1.5% of rdg+5dgt)
Resistance
200
W
0.1
W
+(0.8% of rdg+4dgt)
2k
W
1
W
+(0.8% of rdg+4dgt)
20k
W
10
W
+(0.8% of rdg+4dgt)
Protected by
200k
W
100
W
+(0.8% of rdg+4dgt)
PTC
2M
W
1k
W
+(1.5% of rdg+5dgt)
(500V rms)
20M
W
10k
W
+(2.0% of rdg+10dgt)
200M
W
100k
W
+(2.0% of rdg+10dgt)
DC Current
20
m
A
10nA
+(0.8% of rdg+4dgt)
200
m
A
100nA
+(0.8% of rdg+4dgt)
2mA
1
m
A
+(0.8% of rdg+4dgt)
Protected by
20mA
10
m
A
+(0.8% of rdg+4dgt)
0.5A/250V
200mA
100
m
A
+(1.0% of rdg+3dgt)
Fuse
10A
10mA
+(1.5% of rdg+3dgt)
10A/250V Fuse
Maximum Measuring Voltage Drop: Less than 300mV.
-6-
(4) Diode Test
1. Plug the red test lead into the “V/
W
/Hz” input jack and the black one into
the “COM” input jack.
2. Set the function rotary switch to position.
3. If the semiconductor junction being measured is connected to a circuit,
turn off the power to the circuit being tested and discharge all capacitors.
4. Connect the test leads to the device and read the forward value on the
digital display.
5. If the digital display reads overrange (OL), reverse the lead connections.
The placement of the test leads when the forward reading is displayed
indicates the orientation of the diode.
The red lead is positive and the black lead is negative. If overrange (OL)
is displayed with both lead connections, the junction is open.
(5) Transistor h
FE
Measurement
1. Transistor must be out of circuit.
2. Set the function/rotary switch to the h
FE
position.
3. Plug the emitter, base and collector leads of the transistor into the correct
holes in either the NPN or the PNP transistor test socket, whichever is
appropriate for the transistor you are checking.
4. Read the h
FE
(beta or DC current gain) in the display.
(6) Capacitance Measurement
1. Set the function/rotary switch to the desired capacitance position.
2. Discharge capacitor before measurement.
3. Insert the capacitor leads into the capacitor test socket.
4. One lead must be inserted into one hole and the other lead must be
inserted into the other hole.
5. Read the capacitor value on the digital display.
(7) Continuity Test
1. Plug the red test lead into the “V/
W
/Hz” input jack and the black one into
the “COM” input jack.
2. Set the function/rotary switch to position.
3. Buzzer sounds if the resistance between two leads is less than approx.
30
W
.
(8) Frequency Measurement
1. Plug the red test lead into the “V.
W
.Hz” input jack and the black one into
the “COM” input jack.
2. Set the function/rotary switch to the “Hz” position.
3. Connect the test leads to the frequency source to be measured.
4. Read the frequency value on the digital display.
-11-
Range
Resolution
Accuracy
Maximum Input
Range
Resolution
Accuracy
Maximum Input
Range
Resolution
Accuracy
Input Protection
Range
Resolution
Accuracy
Input Protection
