SA5041 Digital Multimeter User ’s Guide
Shijiazhuang Suin Instruments Co., Ltd 8
Chapter 2 Measurement Function
2.1 Measuring DC Voltage
Voltage Range: 200mV, 2V, 20V, 200V, 1000V
Max. Resolution: 10µV
Input Protection: 1000V (MAX)
Measuring method
(1) Insert the red test lead into the ‘V’ terminal (when measuring DC Voltage) or
‘mV/R/D/-||-/
℃
/Hz’ (when measuring DC mV Voltage) terminal and the black test lead into the
COM terminal.
(2) Press
【
V-
】
key to select DC voltage, and make test lead parallel connected with object being
measured.
(3) Press
【
▲
】
or
【
▼
】
to select requested voltage range manually. And press
【
AUTO
】
key to
lock auto range.
(The range with mv unit could not be selected by pressing
【
AUTO
】
key, only
with
【
▼
】
key.)
(4)
If ‘Over’ in display is lighten up, which means that measuring voltage beyond the setting range,
and press
【
▲
】
key to set higher range until normal reading displayed.
(5) Reading is shown as the measuring voltage on the display.
(6) The input impedance of the Meter is around 10MΩ, which can cause measurement errors in
high impedance circuits. In most cases, the error could be negligible (0.1% or less) for circuit
impedance below 10KΩ.
(7) The input impedance is around 2GΩ for mV range measurement.
Note:
Do not input the voltage higher than 200mV when using mV range, or the instrument is
more likely to be damaged.
Do not input the voltage higher than DC 1000V to the input port.
Special care should be taken when measuring high voltage to avoid electric shock.
2.2 Measuring DC current
Current Range: 200µA, 2000µA, 20mA, 200mA, 10A
Max. Resolution: 0.01µA
