1.

Turn the system off and lock out the power supply.
 

2.

Check to make sure cup is in the retracted and upside down. If the cup is not in this position, go to step #3 and follow the steps until the cup is retracted and upside down, once the cup is retracted and upside down, go to step #10.
 

3.

Check for 50psi of clean dry air.
 

4.

Check to make sure the electrical solenoid connections are tight on the valve body.
 

5.

All external air hose are in place with no pinched lines?
 

6.

Open cover and be VERY careful not to push or pull on the weigh plate, the load cell is very sensitive. Confirm that the cylinder is not touching the exit hole. It should be centered left to right and nearly touching the top of the exit hole. If cylinder is rubbing, call III Sigma for alignment instructions.
 

7.

While inside the unit, check the internal hoses to make sure they are all tight and not "pulling" too hard on the fittings. There should be enough hose so they are flexible and lose, but not so much that the hoses hit the side of the cover or become entangled with other hoses and fittings.
 

8.

Confirm that the travel limits for the weigh plate are in place with the proper 1/8" gap top and bottom.
 

9.

If the cup is not retracted and upside down at this point, contact us.
 

10.

Check the cup to make sure it is clean. If the cup needs to be cleaned, gently wipe it out. DO NOT push or pull on the cup!
 

11.

After the cup is clean, turn on the power and let the system sample for 15 minutes. Remember, it is best to have the load cell being exercised, and not just sampling empty.
 

12.

After the system is warmed up, go to "calibration" screen.
 

13.

Check the sampler to make sure that it has 50psi of clean dry air and that the cup is retracted and right side up.
 

14.

Check for the zero reading on the screen. If it is there, continue with normal operations. If the system does not read zero, please see "Checking the Electronics on the Reliadens" technical note.
 

15.

After you have checked the electronics, go back to step #11. If the unit is still not reading zero, contact us.