DH Instruments FPG8601, Руководство по эксплуатации и обслуживанию

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FPG8601™/VLPC™ OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page 28
Make sure the electrical connector of the sensor is also connected to the port on the upper left of the
FPG base.
Connect valve driver 12 to the valve attached to the vacuum sensor with the supplied tubing.
4.7 SETTING UP THE FPG FOR OPERATION
The FPG can be set up to use both gauge and absolute pressure measurement modes on demand.
If the following steps are performed, simply using the
[Units], [Gauge Mode]
(or
[Absolute Mode])
option is all that is required to change the current pressure measurement mode (see Section 6.9.2).
Since the initial power up condition of the FPG is gauge measurement mode, the majority of the steps in
this procedure are related to setting up absolute measurement mode.
Connect the FPG manifold to the mounting post (see Section 4.6).
Attach the KF25 pneumatic valve to the bottom of the FPG lower mounting post (this may already
be attached). Connect the actuation line of the valve to driver 9 (V9) on the far left of the FPG
base.
If you are only going to use the FPG in gauge mode only you do not have to continue with the following
steps in this procedure. Absolute mode requires two vacuum pumps for reference pressure and
control pressure.
Attach a KF25 tee to the D16b vacuum pump’s inlet port.
Attach a 1 000 mm KF25 bellows tube to the vertical port on the KF25 tee.
Attach the opposite end of the KF25 bellows tube to V11 on the FPG manifold.
Attach the KF25 x 1/4 in. Swagelok adaptor to the remaining port on the KF25 tee.
Install the vacuum bleed kit assembly on the 1/4 in. Swagelok fitting.
Route a 1/4 in. PFA tube from the 1/4 in. Swagelok fitting on the other end of the bleed kit assembly
to the VACUUM port on the back of the FPG.
Install the KF25 by KF40 vauum elbow connecting to the KF25 fitting on valve 9 on the FPG mounting
post and routing it through the hole in the bench. Connect the elbow to the bench using the holding
collar and brackets.
Attach the turbo pump to the vacuum tube that extends down through the bench using a KF40 flange
and a the KF40 centering ring with a screen. Orient the pump so that its lateral KF16 port is facing
towards left (as viewed from the front of the bench).
Attach turbo pump controller cable (on turbo pump controller) to the turbo pump.
Install PFA vent bleed tube between the adaptor and the bulkhead on the rear of the turbopump
controller.
Install a KF16 x KF25 adaptor onto the turbo pump KF16 lateral port.. Attach a KF25 plastic hose
from the adaptor to the roughing vacuum pump.