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2.5 Rear Panel Summary
The rear panel of TH1942 is shown in Figure 2-4. This section includes important information that should
be reviewed before operating the instrument.
1 2 3
贴标签
RS-232C
!
TO AVOID ELECTRIC SHOCK,
THE POWER CORD PROTECTIVE GROUNDING
CONDUCTOR MUST BE CONNECTED TO GROUND.
DISCONNECT POWER SUPPLY BEFORE
REPLACING FUSE.
WARNING
10VA Max
FUSE
T500mAL
T1AL
RATING
~
110V/
~
220V/
60Hz
50Hz
4
Figure 2-4 TH1942 Rear Panel
1. RS-232C Connector
Connector for RS-232 operation. Use a standard DB-9 cable.
2. Grounding
Chassis Grounding terminal
3. Power-Line Fuse-Holder Assembly
TH1942 can be configured for line voltage of 110/220V±10% AC at line frequency of 50/60Hz±5%.
Power-line fuse is used for instrument protection. (220V/500mA or 110V/1A)
Note: Please use the same-type fuse or contact your nearest Tonghui sales and service office.
To verify and replace the fuse, remove the power cable and pull out the fuse holder.
4. Label
Serial number for this instrument
