East Tester ET1260 User Manual page 2

Safety Precautions
Make sure that you use this product as specified to avoid personal injury and product damage,
and do not go to the next step before fully understanding and meeting the following warnings.
 Safety grounding. Please make sure that the power-line grounding terminal is reliably
connected to the protective grounding terminal of the product. Inset the instrument into the
grounded power outlet.
 Use fuses properly. In order to provide continuous fire protection, please only use the fuses
of specified types and rated values.
 Front/rear switch safety items. When there are signals on front/rear terminal set, please do
not change positions of front/rear switch on the front panel. Generally the switch can not be
used as a movable multiplexer, and switchover under high voltage or high current may
cause instrument damage or may cause electric shock.
 Correctly use leading wire suite. Please do not use damaged or worn-out leading wire
suite, which may cause instrument damage or personal injury. During probe using, the
fingers should be kept behind finger-protecting device of the probe. While wiring, firstly
connect the common line and then the charged testing line, and while disconnecting, firstly
disconnect the charged testing line.
 If the product works in disorder, please do no use. The product's protecting devices may
be damaged, and do not install substitute parts or adjust the product arbitrarily. Please return
the product for maintenance or ask professionals to inspect to ensure its security feature.
 The product can by no means be used in flammable and combustible environment.
 Protection limits.
Under the condition of not exceeding protection limits, the protection circuitry provided by this
product can prevent instruments from being damaged or electrically shocked. In order to ensure
safe instrument operation, please do not exceed the protection limits indicated on the front and
rear panels, defined as follows:
Note: What showed in the above figure is front panel terminal, and rear panel terminal is
basically the same as the front panel terminal but without 12A-current shift, with
current-protection fuse on the rear panel.
Protection limits of input terminal are as follows:
Main input (HI and LO) terminals.
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