9
8.
ELECTRICAL SPECIFICATIONS
DC Voltage Measurement
Range
Resolution
Accuracy
400mV
0.1mV
±(
0.5% of r2 digits)
4V
40V
400V
0.001V
0.01V
0.1V
•
Input impedance: 10MΩ
•
Max. input voltage: 600V rms
10
600V
1V
±(
0.7% of r2 digits)
•
Safety Rating:
CAT III 600V; pollution degree: II
•
Operating Altitude:
2000m
•
Relative Humidity:
75% max
•
Operating Temperature:
0°C~40°C/32°F~104°F (<80% RH)
•
Storage Temperature:
-10°C~60°C/14°F~140°F (<70% RH)
•
Accuracy Temperature:
-18°C~28°C/64°F~82°F (<80% RH)
•
Temperature Coefficient:
0.1x(specified accuracy)/°C (<18°C or >28°C)
•
Sampling Frequency:
approx. 3 times/sec.
•
Fuse Protection:
µA/mA input: FF 600mA H 600V
10A input: FF 10A H 600V
•
LCD Display:
3 ¾ digit display (4000 counts)
•
Supply:
9V battery
•
:
150mm
×
74mm
×
48mm / 6.3"
×
2.9"
×
1.9"
•
Weight:
•
Safety Standards:
IEC61010-1
•
Pollution
Degree:
2
•
Accuracy:
±(
of
r # of least significant digits
)
Power
Dimensions
8.9oz/250g
7.
Specifications
6
DDM450
10. Non-Contact Voltage Detector:
NCV
8. Battery Test:1.5V
4
4
9. Battery Test:9V
DDM450
DDM450
1.
Turn rotary switch to 1.5V battery test position.
2.
Connect leads across battery
3.
Read measured voltage on the display.
1.
Turn rotary switch to 9V battery test position.
2.
Connect leads across battery
3.
Read measured voltage on the display.
1.
In any mode, hold NCV button.
2.
Move top of meter near voltage source.
3.
If voltage is detected, the NCV indicator flashes/buzzer beeps.
6
DDM4
50
