Servicing
I/O Expansion Board Replacement (Optional)
7-24
Model 146
i
Instruction Manual
Thermo Fisher Scientific
3. At the Analog Input Cal screen, press
to scroll to the channel
selected in Step 1, and press
.
4. Press
to scroll to
Calibrate Full Scale
, and press
.
The screen displays the current input voltage for the selected channel.
5. Use
and
to enter the source voltage, and
press
to calibrate the input voltage for the selected channel to the
source voltage.
6. Press
>
to return to the input channels display and repeat
Steps 3-5 to calibrate other input channels to the source voltage as
necessary.
I/O Expansion Board
Replacement
(Optional)
Use the following procedure to replace the optional I/O expansion board
(
Note
After replacing the optional I/O expansion board, calibrate the current
outputs and the analog voltage inputs. See the
and the
in this
chapter.
Equipment Required:
I/O expansion board
Nut driver, 3/16-inch
1. Turn instrument OFF, unplug the power cord, and remove the cover.
2. Unplug the I/O expansion board cable from the EXPANSION BD
connector on the motherboard.
Equipment Damage
Some internal components can be damaged by small
amounts of static electricity. A properly grounded antistatic wrist strap must
be worn while handling any internal component.
Summary of Contents for 146i
Page 1: ...Model 146i Instruction Manual Dynamic Gas Calibrator Part Number 102482 00 30Jan2008 ...
Page 4: ......
Page 16: ...Contents xii Model 146i Instruction Manual Thermo Fisher Scientific ...
Page 148: ......
Page 188: ...Troubleshooting Service Locations 6 26 Model 146i Instruction Manual Thermo Fisher Scientific ...
Page 258: ...System Description I O Components 8 16 Model 146i Instruction Manual Thermo Fisher Scientific ...
Page 273: ...Thermo Fisher Scientific Model 146i Instruction Manual 9 15 Figure 9 5 Bench Mounting ...
Page 274: ...9 16 Model 146i Instruction Manual Thermo Fisher Scientific Figure 9 6 EIA Rack Mounting ...
Page 275: ...Thermo Fisher Scientific Model 146i Instruction Manual 9 17 Figure 9 7 Retrofit Rack Mounting ...