WARNING!
Under no circumstances should you expose batteries to extreme heat or
fire as they may expose and cause injury.
4. Place two fresh AA battery in the battery compartment.
5. Reattach the battery compartment cover to the meter and reinstall
the screw s .
Fuse Replacement
WARNING!
Disconnect the test leads from the circuit under test and from the meter
prior to removing or installing fuses! Replace the bottom fuse with the
fuse specified for this meter ONLY!
To replace a blown fuse, perform the following procedures:
1. Turn off power to the circuit under test.
2. Turn off the meter.
3. Disconnect the test leads from the circuit or component under test.
4. Open the battery/fuse compartment cover. The two fuses are
visible in the bottom of the compartment.
5. Pull the defective fuse(s) from its fuse holder.
6. Insert the fuse(s).
7. Reattach the battery compartment cover.
Note:
If the fuse is good, check for corrosion at the fuse clips and
ensure clips are tight around the fuse.
S p e c i f i c a t i o n s
General Specifications
For any current measured in the 10 ampere mode, limit the measurement
d u ty cycle to five minutes. After continuous use for five minutes, disconnect
the current input from the 10 ampere mode for least five additional
minutes before making a second measurement.
Maximum Inputs
DM400-MAN
P. 7
Function
DC Volts
AC Volts
DC Amps
AC Amps
Range
400 mV
4 V
40 V
400 V
600 V
400 mV
4 V
40 V
400 V
600 V
400 µA
4000 µA
40 mA
400.0 mA
4 A
10 A
400 µA
4000 µA
40 mA
400 mA
4 A
10 A
Resolution
0.1 mV
1 mV
10 mV
100 mV
1 V
0.1 mV
1 mV
10 mV
10 mV
1 V
0.1 µA
1 µA
10 µA
100 µA
1 mA
10 mA
0.1 µA
1 µA
10 µA
0.1 mA
0.001 A
0.01 A
Accuracy
±0.5% rdg + 3 digits
±1.5% rdg + 5 digits
±1.2% rdg + 3 digits
±1.5% rdg + 5 digits
Impedance
>100 M
Ω
10
M
Ω
10
M
Ω
10
M
Ω
10
M
Ω
>100
M
Ω
10
M
Ω
10
M
Ω
10
M
Ω
10
M
Ω
100 Ω
100 Ω
1 Ω
1 Ω
0.01 Ω
0.01 Ω
100 Ω
100 Ω
1 Ω
1 Ω
0.01 Ω
0.01 Ω
Function
Ohms
*Vdda=dc 3V
Range
400
Ω
4 kΩ
40 kΩ
400 kΩ
4 MΩ
40 MΩ
Resolution
0.1
Ω
1 Ω
10 Ω
100 Ω
1 kΩ
10 kΩ
Accuracy
±0.75% rdg + 3 digits
±0.75% rdg + 3 digits
±0.75% rdg + 3 digits
±0.75% rdg + 3 digits
±1.0% rdg + 3 digits
±1.2% rdg + 3 digits
Measurement
Voltage/Current
Vdda*/1.2mA or less
0.7V/0.7mA or less
0.47V/0.7mA or less
Continuity
Open circuit test voltage: <3 V Threshold; approx. <50 Ω
Diode Check
Open circuit test voltage: <2.5 V Max. test current; 3.1 µA
Function
DC V
AC V
Ω
/
A
mA
µA
Input Terminals
Red Lead
V/
Ω
/mA/µA
V/
Ω
/mA/µA
V/
Ω
/mA/µA
V/
Ω
/mA/µA
A
V/
Ω
/mA/µA
V/
Ω
/mA/µA
Black Lead
COM
COM
COM
COM
COM
COM
COM
Maximum Input
600 V
600 V
600 V
600 V
10 A/250 V
400 mA/250 V
400 mA/250 V
