Analog Input Calibration; Calibrating The Input Channels To Zero Volts - Thermo Scientific 146i Instruction Manual

Servicing

Analog Input Calibration

Analog Input
Calibration
Calibrating the Input
Channels to Zero Volts
7-22 Model 146i Instruction Manual
3. At the Analog Output Cal screen, press
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
Output To line, then press
6. Press to return to the previous screen.
7. Press
8. Use
Output To line, then press
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.
Use the following procedure to calibrate the input channels to zero volts.
1. From the Main Menu, press
to scroll to Analog Input Calibration, and press
The Analog Input Cal screen appears.
Note If Service is not displayed, refer to
page 7-11, then return to the beginning of this step.
until the meter reads the value shown in the Set
to save the value.
to select Calibrate Full Scale.
until the meter reads the value shown in the Set
to save the value.
to scroll to Service, press
""Accessing the Service Mode"
to scroll to the voltage
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