Servicing
Flow Transducer Replacement
7-24
Model 48
i
Instruction Manual
Thermo Fisher Scientific
5.
Wait at least 10 seconds for the zero reading to stabilize, and then press
to save the zero pressure value.
6.
Disconnect the pump from the pressure transducer.
7.
Press
to return to the Pressure Sensor Cal screen.
8.
At the Pressure Sensor Cal screen, press
to select
Span
.
The Calibrate Pressure Span screen appears.
9.
Wait at least 10 seconds for the ambient reading to stabilize, use
and
to enter the known barometric pressure,
and press
to save the pressure value.
10.
Reconnect the instrument tubing to the pressure transducer.
11.
Install the cover.
Use the following procedure to replace the flow transducer (
Figure 7–12
).
Equipment Required:
Flow transducer
Philips screwdriver, #2
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.
Disconnect flow transducer cable from the FLOW connector on the
measurement interface board (
Figure 7–2
).
3.
Disconnect the plumbing connections from the flow transducer. Note
the plumbing connections to facilitate reconnection.
Flow Transducer
Replacement
