Service Manual UDP6900 Series Digital Control Power Supply
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This device may be damaged by static electricity, so it should be tested in the anti-
static area if possible. Before the power cable is connected to this device, the internal
and external conductors should be grounded briefly to release static electricity. The
protection grade of this device is 4 kV for contact discharge and 8 kV for air discharge.
Use the input /
output port of
this device
properly
Please use the input / output ports provided by this device in a properly manner. Do not
load any input signal at the output port of this device. Do not load any signal that does
not reach the rated value at the input port of this device. The probe or other
connection accessories should be effectively grounded to avoid product damage or
abnormal function. Please refer to the product manual for the rated value of the input /
output port of this device.
Please use power fuse of specified specification. If the fuse needs to be replaced, it
must be replaced with another one that meets the specified specifications by the
maintenance personnel authorized by UNI-T.
There are no components available to operators inside. Do not remove the protective
cover.
Maintenance must be carried out by qualified personnel.
This device should be used indoors in a clean and dry environment with ambient
temperature from 0
℃
to +40
℃
.
Do not use this device in explosive, dusty or humid air.
Do not operate
in moisture
environment
To avoid the risk of short circuit or electric shock in the internal circuit of the
instrument. Do not operate the instrument in humid environment.
Do not operate
in flammable
and explosive
environment
Do not use this device in a flammable and explosive environment to avoid product
damage or personal injury.
If this device may be faulty, please contact the authorized maintenance personnel of
UNI-T for testing. Any maintenance, adjustment or parts replacement must be done by
the relevant personnel of UNI-T.
Do not block the ventilation holes at the side and back of this device;
Do not allow any external objects to enter this device via ventilation holes;
Please ensure adequate ventilation, and leave a gap of at least 15 cm on both sides,
front and back of this device.
Please transport this device safely to prevent it from sliding, which may damage the
buttons, knobs or interfaces on the instrument panel.
Poor ventilation will cause the device temperature to rise, thus causing damage to this
device. Please keep proper ventilation during use, and regularly check the vents and
fans.