HELIX GRANVILLE-PHILLIPS Convectron ATM, Instruction Manual

Page: 77 / 98

Maintenance
Convectron
®
ATM Vacuum Gauge Module Instruction Manual
69
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Replacing the Convectron
gauge
To avoid contaminating the Convectron gauge, wear sterile gloves during
the replacement procedure. Refer to Figure 5-3 and follow these
instructions:
1. Shut off power to the module .
2. Remove the differential pressure sensor port cover from the top of the
Convectron gauge.
3. Carefully reconnect the replacement Convectron gauge to the
differential pressure sensor by inserting the differential pressure tube
into the port on the top of the gauge.
4. Align the gauge pins so they mate with connections on the vertical PC
board.
Carefully insert the Convectron gauge pins into the mating
connections on the vertical PC board.
5. Position the end plates and put both blue parts of the housing into
place, making sure the gauge grounding springs and cradles are in line
with the gauge envelope.
6. Re-install the Phillips-head screws into the end plates.
7. Use the fitting to re-attach the module to the vacuum chamber.
Figure 5-3 Installing the replacement Convectron gauge
3.
Carefully insert tube
from sensor into port on
gauge.
4.
Carefully insert gauge
pins into the mating
connectors on vertical
PC board.
5.
Put both parts of blue housing
into place around end plates.
1.
Shut off power to the module .
2.
Remove differential pressure sensor port cover from Convectron gauge.
6.
Re-install Phillips-head screws
into end plates.
7.
Re-attach module to vacuum
chamber.