INFICON CrystalSix Sensor - Manual (Page 41)

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CrystalSix Operating Manual
7 Rotate the ratchet (item #22) counterclockwise until one tooth contacts the pin
of the pawl and actuator stem assembly (item #24). Secure the ratchet to the
0.25" diameter shaft of the carousel assembly (item #5) utilizing the #6-32 x
.125" long socket set screw (item #33).
8 Rotate the stop ratchet (item #38) CW (clockwise) until it contacts the stem of
the pawl and actuator stem assembly (item #24) as shown in
Figure 4-3 on
page 4-14 . Secure the stop ratchet to the 0.25” diameter shaft of the carousel
utilizing the #6-32 x .125 long socket set screws (item #33).
9 Rest the detent spacing tool on the top of the alignment pin as shown in Figure
4-4 on page 4-14 . Position the detent spacing tool (of the 750-254-G1
assembly) between the detent (item #41) and ratchet (item #22) as shown in
Figure 4-4 . Pull the detent against the detent spacing tool and subsequently
against the tooth of the ratchet. Tighten the #2 fastener (item #42) to secure the
detent to the bellow assembly.
10 Remove the detent spacing tool.
11 Release air pressure from the bellows assembly (item #19).
12 Remove the 0.125 diameter alignment pin of the 750-254-G1 alignment tool
assembly from the hole.
13 Prior to installation of the crystal holder assembly, check the continuity between
the center contact of the connector and the electrical contacts associated with
the carousel assembly (item #5). Install the crystal holder assembly when
electrical continuity is verified. If electrical continuity is not verified, the unit
should be disassembled (see
section 4.4.2 on page 4-6 ). The electric contact
associated with the carousel will have to be adjusted to ensure electrical
contact when assembled.
14 Press the crystal switch button on the handheld controller or the instrument
front panel. The sensor will advance to the next crystal position. Each crystal
should be centered in the aperture. Repeat step #10 for each crystal position.
Make certain the detent drops in to engage each tooth of the ratchet (item #22)
on each pulse.
15 Secure the actuator cover (item #15) to the top plate (item #10) using two #4-40
x 0.187" long socket head cap screws (items #16 and #17).
16 Install the heat shield (item #8) by first orienting the slot in the heat shield to
accommodate the water lines, then secure the heat shield by applying pressure
near the center of the shield. The shield should snap in place.
17 Regulate the air supply to 80-90 PSIG (5.5 bar - 6.2 bar) [550 kPa - 620 kPa]
for operation.
Unit is now ready for operation.