6712FR Refrigerated Sampler Section 2 Installation/Preparation

Install the distributor-shaft extension. Use the 51/4-inch extension for the 2-bottle kit. The instructions on page 2-1show you how to remove the controller and replace the extensions for each bottle kit.

Next, replace the controller, and adjust the distributor arm to position A. Install the arm and stop. See Installing the Distribu- tor Arm and Discharge Tube on page 2-2.

Install over the mounting plate at the bot- tom of the refrigerator, the locating base which holds the 21/2-gallon glass or 2 gal- lon polyethylene bottles.

Begin by loosening the ramps. Move them toward the front of the compartment so that they will fit under the ridge of the lo- cating base. (You can also remove them completely.)

Remove the two front stops, and align the holes on the sides of the locating base with the holes for the stops in the mount- ing plate. Secure the base by replacing the stops.

Install the bottles, and position the arm over each bottle.

Secure the base with these stops.

Ramps located under locating base.

Pull them to the front or remove them.

NEVER MANUALLY ROTATE

THE DISTRIBUTOR ARM.

Figure 2-4 Installing the 2-bottle Kit

2.2.2 Removing Racks

Before removing the rack, place the lids on the bottles so the

 

samples do not spill. Remove the bottle rack by lifting the front

 

edge of the rack slightly to disengage it from the two ramps.

 

Then, pull it straight out of the refrigerator. Be careful not to

 

catch the distributor arm against the bottles.

2.2.3Installing Composite Remove the distributor arm and discharge tube. Remove the dis-

Bottles

tributor arm stop. If using the two bottle locating base, remove it.

 

Slide the composite bottle discharge tube on the bulkhead fitting.

 

Composite bottle kits have two lids, one with a hole drilled in the

 

center. Screw the lid with the hole in it on the bottle, and place

 

the bottle in the center of the mounting plate.

 

Thread the discharge tube through the hole in the lid. Always

 

use the lid to retain the discharge tube. It prevents the sampler

 

from spraying liquid inside the sample compartment instead of

 

the bottle.

2.3 Suction Line

The suction line is the tubing from the sampling point to the

 

pump intake. The 6712FR uses a 3/8-inch ID suction line of

 

lengths 3 to 99 feet. Teledyne Isco offers vinyl or PTFE suction

 

lines. The PTFE tubing has a polyethylene jacket to protect it

 

from kinks and abrasions.

2-6

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Teledyne 6712FR manual Suction Line, Removing Racks, Bottles