Instruction manual

Servicing
Themistor Replacement
7-26 Model 5030i SHARP Instruction Manual Thermo Fisher Scientific
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 7–11 shows the analog input pins and Table 7–5
identifies the associated channels.
2. From the Main Menu, choose Service > Analog Input Cal.
The Analog Input Cal screen displays input channels 1-8.
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 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 connected
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.
Use the following procedure to replace the optional ambient temperature
thermistor (Figure 7–12).
Equipment Required:
Thermistor assembly
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. ▲
Calibrating the Input
Channels to Full-Scale
Themistor
Replacement