Rigol DM3068, Руководство по обслуживанию

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RIGOL
Service Guide for DM3068
III
Do Not Operate in Wet Conditions.
In order to avoid short circuiting to the interior of the device or electric shock, please
do not operate in a humid environment.
Do Not Operate in an Explosive Atmosphere.
In order to avoid damages to the device or personal injuries, it is important to
operate the device away from an explosive atmosphere.
Keep Product Surfaces Clean and Dry.
To avoid the influence of dust and/or moisture in air, please keep the surface of
device clean and dry.
Electrostatic Prevention.
Operate in an electrostatic discharge protective area environment to avoid damages
induced by static discharges. Always ground both the internal and external
conductors of the cable to release static before connecting.
Handling Safety
Please handle with care during transportation to avoid damages to keys, knob and,
interfaces as well as other parts on the panels.
The disturbance tests of all models conform to the P/F values of A based
on the standard of EN 61326: 1997+A1+A2+A3 instead of P/F values of
B.
Input Terminal Protection Limit
The protection limit is defined for the input terminal:
1
．
Main input (HI and LO) terminals
HI and LO terminals are used for Voltage, Resistance, Capacitance, Continuity,
Frequency and Diodes measurements and should be used under the following
two conditions:
1) HI-LO protection: at most 1000 VDC or 750 VAC, this is also the maximum
measurable voltage. The limit can be expressed as 1000 Vpk.
2) LO-ground protection: floating at 500 Vpk (relative) with safety.
Since the HI terminal holds a maximum protection of 1000 Vpk relative to the
ground, the sum of the “float” and measured voltages cannot exceed 1000 Vpk.
2
．
Sampling (HI Sense and LO Sense/200 mA) terminals
HI Sense and LO Sense/200 mA terminals are used for 4-wire resistance
measurement and should be used under two conditions:
1) HI Sense-LO Sense/200 mA protection limit: 200 Vpk.
2) LO Sense/200 mA-LO protection limits: 0.5 Vpk. The current input fuse