Figure 7-10. Replacing The Thermistor - Thermo Scientific 5028i Instruction Manual

Servicing
Themistor Replacement
Themistor
Replacement
7-22 Model 5028i Instruction Manual
4. Press to scroll to Calibrate Full-scale, and press
The screen displays the input voltage for the selected channel.
5. Use and
press to calibrate the input voltage for the selected channel
connected to the source voltage.
6. Press >
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
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.
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
to enter the source voltage, and
to return to the input channels display and
(Figure 7–10).
.
s
Thermo Fisher Scientific