III Sigma

Issues & Solutions

Click on each issue below for a solution.

My computer screen is blank

Using your calibration weight

Connecting Reliadens™ Controller to your PC for data acquisition

Checking the electronics on the Reliadens™

Entering a new constant

How to enter NVOL! Statements for the Reliadens™ Controller

Installing a new air cylinder

Installing a new A/D board in the controller

Installing a new battery in the Reliadens™ Controller

Installing a new load cell

Installing your new program into the Reliadens™ Controller

My computer screen reads "Clean Me" or "Problems"

My system is not measuring properly (Drift, Noise?)

How to check the memory

How to change the Pneuturn

Technical Support

Installing a New Load Cell

NOTE: Remember that the load cell is a very sensitive device. It should always be handled with care. Do not drop the load cell or use any unnecessary force which might cause damage to the load cell. When tightening he bolts, use the specified Loctite or equivalent. Do not over tighten mounting bolts.

1.	Turn off system.
2.	Use the 5/16" nut driver to remove bolts around the perimeter of the cover.
3.	Using the 7/16" wrench to remove the 2 lower load cell bolts which exit from the bottom of the sampler.
4.	Remove the lower load cell spacer. Mark the spacer so you will know which side is; top, bottom, front and back.
5.	Loosen all 8 thumb screws completely. 4 on the top and 4 on the bottom.
6.	Using the 7/16" wrench, remove the upper load cell bolts. You will not be able to remove the bolts from the plate. Simply hold them up while you remove the load cell and the spacer.
7.	Disconnect the 4 load cell wires from the tare board POWER and IN connections.
8.	Replace old load cell and connect the new wires. Green wire = + IN / White wire = - IN/ Red wire = + POWER / Black wire = - POWER.
9.	Clean off all old bolts.
10.	Replace upper load cell spacer and install new load cell. Put Loctite #242 on all bolts and torque to 150 INCH POUNDS. If you do not have an open ended torque wrench, please tighten the upper load cell bolts to approximately 150 inch pounds with the 7/16" wrench. DO NOT OVER TIGHTEN. Make sure load cell is aligned with the weigh plate and the air cylinder so to assure proper shaft alignment through the exit hole.
11.	Install lower load cell spacer and 2 lower load cell bolts until they are snug. Be sure to keep all pieces parallel. Make sure all thumb screws are out of the way.
12.	HINT FOR #12: If you need to raise the cylinder shaft in the exit hole, tighten the back lower load cell bolt first. If you need to lower the cylinder shaft in the exit hole, tighten the front lower load cell bolt first.
13.	Align shaft in the center of the exit hole (left and right) and align it as close to the top of the exit hole as you can without touching it. Torque bolts to 150 INCH POUNDS.
14.	Set the 8 thumb screws to 1/16" clearance above and below the weigh plate. Lock into place with the 7/16" nuts. This will help protect the load cell from severe shock during operation. Make sure during step #14 that the thumb screws do NOT touch the weigh plate at any time during operation.
15.	Watch the system operate for several cycles until you are sure that no parts are rubbing or mis-aligned. Check hose connections and clean off any foreign matter.
16.	Replace the cover.