41 42
43 44
45
46 47 48
5
Duty Cycle
(1% ~ 99%)
600Vp
MAINTENANCE(1)
This section provides basic maintenance information
including battery and fuse replacement instruction.
Warning
Do not attempt to repair or service your Meter unless
you are qualified to do so and have the relevant
calibration, performance test, and service information.
To avoid electrical shock or damage to the Meter, do
not get water inside the case.
A. General Service
Periodically wipe the case with a damp cloth and
mild detergent. Do not use abrasives or solvents.
To clean the terminals with cotton bar with detergent,
as dirt or moisture in the terminals can affect readings.
Turn the Meter to OFF position when it is not in use
and take out the battery when not using for a long
time.
Do not store the Meter in a place of humidity, high
temperature and strong magnetic field.
MAINTENANCE(2) MAINTENANCE(3)
MAINTENANCE(4)
D. Replacing the Fuses (see figure 14)
Warning
To avoid electrical shock or arc blast, or personal
injury or damage to the Meter, use specified fuses
ONLY in accordance with the following procedure.
To replace the Meter's fuse:
1. Turn the Meter to OFF position and remove all
connections from the terminals.
2. Take out the Meter from the holster.
3. Remove the 3 rubber feet and 3 screws from the
case bottom, and separate the case top from the
case bottom.
4. Remove the 4 screws fixing the PCB on the input
terminals, gently take apart the PCB and reverse it.
5. Remove the fuse by gently prying one end loose,
then take out the fuse from its bracket.
6. Install ONLY replacement fuses with the identical
type and specification as follows and make sure the
fuse is fixed firmly in the bracket.
Fuse1:
Fuse2:
7. Rejoin the PCB and the case top, and reinstall the
4 screws.
8. Rejoin the case bottom and case top, and reinstall
the 3 screws and 3 rubber feet.
Replacement of the fuses is seldom required. Burning
of a fuse always results from improper operation.
B. Setting of RS232C Serial Ports (see figure 15)
C System Requirements for Installing the UT70D
Interface Program
To use UT70D Interface Program, you need the following
hardware and software:
An IBM PC or equivalent computer with 80586 or
higher processor and 640 x 480 pixel or better
monitor.
Microsoft Windows 95 or above.
At least 16MB of RAM.
At least 8MB free space in hard drive.
Can access to a local or a network CD-ROM.
A free serial port.
A mouse or other pointing device supported by
Windows.
Please refer to the included "Installation Guide &
Computer Interface Software" for installing and
operating instructions of the UT70DInterface Program.
** END **
This operating manual is subject to change without notice.
RS232C Serial Port(2)
CCopyright 2002 Uni-Trend International Limited.
All rights reserved.
Manufacturer:
Uni-Trend International Limited
Rm901, 9/F, Nanyang Plaza
57 Hung To Road
Kwun Tong
Kowloon, Hong Kong
Tel: (852) 2950 9168
Fax: (852) 2950 9303
http://www.uni-trend.com
1A,250V fast type glass fuse, 5x20mm.
10A,250V fast type glass fuse, 5x20mm.
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