SA5052 Digital Multimeter User ‟s Guide
Shijiazhuang Suin Instruments Co., Ltd. 28
●
The AC Filter setting is stored in volatile memory. The ac filter is set to slow filter
20Hz at power-on and after remote control reset.
3.2.3 To set DC input impedance
For all dc voltage range, the default input impedance is fixed as 10 MΩ to mimum the noise.
But when test low voltage, you should reduce the error by load effect. For example, for the
range of 100mVdc, 1 Vdc and 10 Vdc, you can set the resistance above >10 GΩ.
Front panel operation
：
Press
【
Config
】
+
【
DCV
】
key and select INPUT by pressing of
【
<
】
or
【
>
】
key. Then press
【
<
】
or
【
>
】
key to select suitable parameter, finally confirm
by
【
Enter
】
key pressing.
●
The dc input impedance setting is stored in volatile memory. Default setting is
10MΩ
at power-on and after remote control reset.(for all DC voltage range).
3.2.4 To set continuity threshold
Range is 1KΩ (2 wire resistance test).
Once the measurement less or equal to continuity threshold, the multimeter will beep and
display the actural resistance on front panel. The threshold resistance can be set from 1Ω to
1kΩ.
Front panel operation
：
Press
【
Config
】
key +
【
】
key, which shows threshold
resistance. Then press
【
<
】
,
【
>
】
,
【∧】
or
【∨】
key to select suitable parameter, finally
confirm by
【
Enter
】
key pressing.
●
Threshold is only allowed to be set on front panel.
●
The threshold resitance setting is stored in volatile memory. Default setting is
10Ω
at power-on and after remote control reset.
3.2.5 To set aperture time
For freqeuency and period measurement, the function of aperture time is similar as gate time
and intergral time, can be set as 100ms (4 1/2 digits), 0 or 1s (5 1/2 digits).
