Hioki 8847, Instruction Manual

Page: 28 / 372

2.1 Install an input module
18
Input modules specified at the time the instrument is ordered are supplied preinstalled. Use the fol-
lowing procedures to add or replace input modules, or to remove them from the instrument.
2.1 Install an input module
Preparations
• To avoid electric shock accident, before removing or replacing an input mod-
ule, confirm that the instrument is turned off and that the connection cords are
disconnected.
• The mounting screws must be firmly tightened or the input module may not
perform to specifications, or may even fail.
When an input module is not used
• To avoid the danger of electric shock, never operate the instrument with an
input module removed. To use the instrument after removing an input module,
install a blank panel over the opening of the removed module.
• To avoid damaging input modules, do not touch the input module connectors
on this instrument.
• Measurements made without a blank panel installed may fail to meet specifica-
tions because of temperature instability within the instrument.
For information on analog channel accuracy when using logic channels, see
"8.10 Making Detailed Settings for Input Modules" (

p.140).
Required item: One Phillips-head screwdriver
1
Turn the instrument's POWER switch Off.
2
With attention to the orientation of the input module,
insert it firmly all the way in.
Make certain that the labels on the input module's panel
face the same direction as the labels on the right side of
the instrument.
3
Using the Phillips screwdriver, tighten the two input
module mounting screws.
Installing an input module
Right Side
Handle
(Example:8966)
Handle
Required item: One Phillips-head screwdriver
1
Turn the instrument’s POWER switch Off.
2
Remove any cables or thermocouples connected to
the input module.
3
Remove the power cord.
4
Using the Phillips screwdriver, loosen the two input
module mounting screws.
5
Grasp the handle and pull the module out.
Removing an input module
Right Side