Analog Input Calibration - Thermo Scientific 48i Instruction Manual

Analog Input
Calibration
Calibrating the Input
Channels to Zero Volts
Thermo Fisher Scientific
1. Connect a meter to the channel to be adjusted and set to voltage or
current as appropriate.
Table 7–4 identifies the associated channels.
2. From the Main Menu, choose Service > Analog Out Cal.
The Analog Output Cal screen appears.
Note If Service Mode is not displayed, refer to
Mode" on page 7-4, then return to the beginning of this step.
3. At the Analog Output Cal menu, press
voltage channel or current channel corresponding to the rear panel
terminal pin 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 (0.0 V, or 0.0 or 4.0 mA), then press
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
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.
Figure 7–14 shows the analog output pins and
▲
to save the value.
Servicing

Analog Input Calibration

"Accessing the Service
▲
to scroll to the desired
.
.
to save the
Model 48i Instruction Manual 7-31