Thermo Scientific 5028i, Instruction Manual

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Servicing
Themistor Replacement
7-22 Model 5028
i
Instruction Manual Thermo Fisher Scientific
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 7–10 ).
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.
s
1. Turn the instrument OFF, unplug the power cord, and remove the
cover.
2. Squeeze the thermistor latch and pull the thermistor assembly from
the AMB TEMP connector on the measurement interface board.
3. Snap the new thermistor into the AMB TEMP connector.
Figure 7–10. Replacing the Thermistor
Themistor
Replacement