Quick Start Guide

Operating Precautions
9
Use the original packing materials when transporting the instrument, if possible.
The optional Model 9723 and 9724 Carrying Cases are available for shipping the
Models 8860 and 8861, respectively.
To avoid accidents in the event of a short circuit, when measuring com-
mercial mains voltage using the Model 8936, 8938, 8956, 8957 or 8959 input
modules, connection should be made only at the secondary side of a
breaker. Never make connections at the primary side of a breaker, as unre-
stricted current flow could cause a serious accident if a short circuit
occurs.
When measuring AC mains voltage, for example, using a power transformer, be
sure to connect the ground terminal of the power transformer to ground.
Using a power transformer (PT)
This Instrument
Input Module
GND
H
L
Input
Power transformer with ground terminal
Ground (Earth terminal of power source, or equivalent)
PT
Power transformer ground terminal
Power transformer without ground terminal
GND
H
L
Input
Ground (Earth terminal of power source, or equivalent)
PT
This Instrument
Input Module
Correct measurement may be impossible in the presence of strong magnetic
fields, such as near transformers and high-current conductors, or in the pres-
ence of strong electromagnetic fields such as near radio transmitters.
Shipping precautions
To avoid damage, observe the following when shipping the instrument:
• Remove the PC cards before shipping.
• If the optional printer module is installed, remove the paper. If the paper is left
in the instrument, the paper-handling components may be damaged by vibra-
tion.