Sterling 882.00379.00 manual Installing the Pickup Probe

Note: The Demand/Level sensor is not designed to be connected to a load. Do not connect external devices to the sensor wires.

This switch is designed for signal load only.

Connecting the sensor to a load VOIDS YOUR WARRANTY!

If the switch is not providing a signal to the controller, check the following:

1.Check that the proper wire connections are made.

∙Secure the connections.

2.Make sure that the switch is not connected to any external load device.

∙Disconnect the load device, connect wiring to the system controller only.

3.Consult with ACS Service Engineers for proper switch/magnet spacing.

Once the vacuum receiver and Demand Switch have been properly oriented, complete the installation by performing the following:

1.Run a bead of silicone sealant around the mounting flange before seating the vacuum receiver. This makes a better seal.

2.Use nuts and screws to mount the hopper. Nuts and bolts can loosen, fall off, and damage process equipment.

3.Check across the mounting flange with a bubble level. A level installation is important for proper operation.

4.Properly ground all vacuum receivers.

Installing the Pickup Probe

Pickup probes (See Figure 20 on page 43 for an example) are used to empty gaylords or bulk material containers located beside the processing machine. A conveying system can use horizontal take-offs or vertical pickup probes (or a combination of the two) to supply material to the vacuum receivers. To ensure maximum conveying rates by your system, take the following into consideration:

∙Locate the supply container near the vacuum receiver.

∙Connect the pickup probe to a vacuum hopper material inlet tube with a minimum amount of tubing, bends, and flex hose.

∙Secure the flex hose at the probe and the material inlet with hose clamps. Be sure to avoid loops and kinks, and install grounding wire around the outside of flex hose to prevent static built-up. Make sure you ground both ends of the grounding wire.

∙Put the pickup probe in the material supply. The burrowing action of the probe provides a steady flow of material.

∙To vary the convey rate, cover or open the vent holes on the pickup probe as needed with the inlet tube.

∙If your material bridges frequently and triggers No-Convey alarm conditions, you should consider using a gaylord tilter or tilter/jogger to supply a steady stream of material to your conveying system.

∙Container tilters are recommended for complete cleanout of gaylords.

Conveying System Mechanical Components Chapter 3: Installation 59 of 138