
3
Replacing Batteries
When the "
" symbol appears on the screen, it indicates the batteries are close to de-
pletion and must be immediately replaced. To replace the batteries, unfasten the screw
at the rear of the casing and remove the casing. Replace the batteries with new ones of
the same type (1.5 V button batteries, LR44 or equivalent) and make sure to observe the
correct polarity when inserting them. (+ side up). Replace the rear casing.
Electrical Symbols
Alternating current (AC)
Direct current (DC)
Warning symbol, hazard. Pay particular attention to sections of the manual marked
with this symbol.
Risk of injury by electric current
Earthing
Double insulation
The product complies with the applicable EU standards
Device Description
The MD-510 is a compact, 3 5/6 digit, digital multimeter with automatic range for meas-
uring DC and AC voltage, resistance, frequency, capacity and continuity. It is also capable
of non-contact detection of AC voltage.
(see Fig. 1)
1 – Screen
2 – SELECT button – turns the device on/off, switches functions
3 – Testing probes
Technical Information
Screen: 3 5/6 digit LCD with maximum displayable value of 5999
Negative polarity indication: the screen automatically displays " - ".
Overload indication: the screen displays "OL".
Reading frequency: approximately 2 to 3× per second.
Power supply: 2× 1.5 V batteries, type LR44
Operating temperature: 0 °C to 40 °C, relative humidity < 75 %
Storage temperature: -10 °C to 50 °C, relative humidity < 85 %
Altitude: 0 to 2,000 meters
Dimensions: 112 × 54 × 12 mm
Weight: 70 g including packaging
Measurement Accuracy
Accuracy is specified for the duration of one year after calibration and only at temperatures
between 18 °C and 28 °C and air humidity up to 75 %.
Accuracy specifications are:
± [(% of reading) + (lowest valid digits)]
DC Voltage
Range
Resolution
Accuracy
6 V
0.001 V
± (0.8 % + 3)
60 V
0.01 V
600 V
0.1 V
Input impedance: 10 MΩ
Maximum input current: 600 V DC
Note: When in Auto detection mode, a minimum input DC voltage of ≤ 1.2 V is required.
AC Voltage
Range
Resolution
Accuracy
6 V
0.001 V
± (1 % + 5)
60 V
0.01 V
600 V
0.1 V
Input impedance: 10 MΩ
Frequency range: 40 Hz to 400 Hz
Maximum input current: 600 V AC
Response: average value, corresponding to a calibrated effective value of a sine wave.
Note: When in Auto detection mode, a minimum input AC voltage of ≤ 1.5 V is required.
Содержание MD-510
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