39
Installation
Installation procedure:
1.
Locate the two slots along one edge of the distributor assembly base plate
(
). Slide the distributor assembly, slots first, under the retainer pins located
on the top inside surface of the controller section.
2.
When fully seated, hand tighten the knurled thumbscrew to hold the distributor in
place.
3.
Push the distributor tubing on the sampler fitting on the top inside surface of the
refrigerator (
).
4.
Connect the distributor cable to the controller cable. Attach the cable assembly to the
twist clip to ensure the cable does not interfere with the motion of the distributor arm.
5.
To make sure that the arm has sufficient freedom of movement, hand-rotate the arm
in a circle (both right and left) until it hits the arm stop. If the arm does not rotate
freely, reposition the tubing to the other side of the arm so that the arm can rotate.
6.
Install the silicone distributor tubing to the sample fitting on the top underside surface
of the controller housing.
Note: Do not force the arm past the Arm Stop clip. The Arm Stop keeps the arm from being rotated
more than 360 degrees. This keeps the distributor tubing from kinking.
The distributor tubing should be installed so that the end of the tubing extends out of the
nozzle end of the distributor arm no more than
1
/
8
in. (
). Do not let the tubing
extend more than
1
/
8
in. past the nozzle end of the arm.
4.7.1 Distributor arm alignment
1.
Program the sampler for 24-bottle operation.
2.
Press
START PROGRAM
to set the distributor shaft to the
Bottle #1 position.
3.
Place the arm on the distributor shaft and align the rib on the inside wall of the control
housing skirt.
4.
Secure the arm to the shaft by tightening the
1
/
8
in. hex-head screw, located on the
distributor arm.
Figure 18 Distributor tubing in arm
1
Nozzle
4
Shaft
2
Distributor arm
5
Tube
3
Distributor motor
Goodnal STP ST041 Pre Treatment (Sigma 900 MAX All Weather Refrigerated Sampler) Vendor Manual
Q-Pulse Id VM373
Active 29/10/2013
Page 39 of 122
