Calibration

 

A circuit calibration is required once per year and recommended every four months. The required annual calibration is performed by SSi, and a certificate is issued for this calibration. A circuit calibration can be performed by the end-user by using the Calibration Bridge provided by SSi when the CAT-100 is first shipped.

 

An important guideline is as follows: A circuit calibration should be performed at any time the “Error in %” found in this procedure is greater than 0.5 or less than -0.5.

 

NOTE: Information on ordering a replacement Calibration Bridge can be found in the Replacement Parts section.

 

The Calibration screen allows you to perform the circuit calibration. The procedure is as follows.

 

1. Open the Calibration menu option. Doing this will require a Configuration level access code.

Figure 30 - Calibration menu screen

 

2. Connect the Calibration Bridge to the binding posts (It is not necessary to sand the calibration bridge). Do this by first inserting the long end of the Calibration Bridge into a binding post first, tightening that post, then inserting the short end of the Calibration Bridge in the other binding post, and tightening that post. See Figure 31.

    

   

Figure 31 - Calibration Bridge in CAT-100 Binding Posts

 

3. Wait five (5) minutes. This will allow “Error in %” readings to stabilize.  The screen will display a countdown during the calibration process (See Fig. 38 above).

4. Press the ↵button to calculate and store the calibration value. The “Error in %” should now be equal to zero (0). If “Error in %” does not read zero (0) on the first attempt, press ↵to recalculate and store the calibration value.

 

IMPORTANT!   The maximum allowable “Error in %” range is ±0.5. If the “Error in %” is greater than 0.5 or less than -0.5 after you have pressed the ↵button more than twice, contact SSi at (513) 772-0060 for further assistance.

 

Press the button to return to the menu list.