Calibrating The Input Channels To Full Scale - Thermo Scientific 49i Instruction Manual

Servicing
Analog Input Calibration
Calibrating the Input
Channels to Full Scale
7-16 Model 49i Instruction Manual
1. From the Main Menu, press
to scroll to Analog Input Calibration, and press
The Analog Input Cal screen displays.
Note If Service is not displayed, refer to
page 7-4, then return to the beginning of this step.
2. At the Analog Input Cal screen, press
press .
3. With the cursor at Calibrate Zero, press
The screen displays the input voltage for the selected channel.
4. Make sure that nothing is connected to the channel input pins and press
to calibrate the input voltage on the selected channel to zero
volts.
The screen displays 0.00 V as the voltage setting.
5. Press >
repeat Steps 2 through 4 to calibrate other input channels to zero as
necessary.
6. Continue with the "Calibrating the Input Channels to Full Scale"
procedure that follows.
Use the following procedure to calibrate the input channels to full scale by
applying a known voltage to the channels.
Equipment Required:
DC voltage source (greater than 0 volts and less than 10 volts)
1. Connect the known DC voltage source to the input channel (1-8) to be
calibrated. Figure 7-6
identifies the associated channels.
to scroll to Service, press
""Accessing the Service Mode"
to return to the Analog Input Cal screen and
shows the analog input pins and
.
on
to scroll to a channel, and
.
Table 7-5
Thermo Fisher Scientific
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