Servicing
Analog Input Calibration
7-22
Model 146
i
Instruction Manual
Thermo Fisher Scientific
3. At the Analog Output Cal screen, press
to scroll to the voltage
channel or current channel corresponding to the rear panel terminal
pins where the meter is connected, then press
.
4. With the cursor at
Calibrate Zero
, press
.
The Analog Output Cal line displays Zero
Note
When calibrating the analog output, always calibrate zero first and
then calibrate full scale.
5. Use
until the meter reads the value shown in the Set
Output To line, then press
to save the value.
6. Press
to return to the previous screen.
7. Press
to select
Calibrate Full Scale
.
8. Use
until the meter reads the value shown in the Set
Output To line, then press
to save the value.
Analog Input
Calibration
Use the following procedures to calibrate the analog inputs after replacing
the optional I/O expansion board. These procedures include selecting
analog input channels, calibrating them to zero volts, and then calibrating
them to full scale using a known voltage source.
Calibrating the Input
Channels to Zero Volts
Use the following procedure to calibrate the input channels to zero volts.
1. From the Main Menu, press
to scroll to Service, press
>
to scroll to
Analog Input Calibration,
and press
.
The Analog Input Cal screen appears.
Note
If Service is not displayed, refer to “
, then return to the beginning of this step.
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