Cooling Down and Removing the Insertion Rod

 

WARNING!

 

Use ANSI-approved eye protection at all times when working with the insertion rod in a plant or other testing environment. Use heat-resistant hand protection when removing the insertion rod from the testing environment. Take any additional precautions necessary to lower the risk of injury in the environment in which you are working.

 

NOTICE!

 

Do not immerse the insertion rod or wire coil in water or any other substance other than ambient air or test environment air at any time. Doing so could damage equipment and will invalidate the results of any carbon potential test.

 

Put on heat-resistant full hand protection (such as welding gloves) before proceeding.

 

Once the appropriate soak time has been achieved, the insertion rod is ready to be removed. Proper removal of the insertion rod is essential for achieving accurate carbon readings. Follow these steps for proper removal.

 

Recommended: Measuring tape; stopwatch or watch with seconds indication.

 

  1. Retract the first 6” (six inches) of the insertion rod length from the access port.

  2. Pause for one minute.

  3. Retract another 3” (three inches) of the insertion rod length from the access port. Pause for another minute.

  4. Repeat Step 3 as many times as needed until the protective cage makes contact with the ball valve (Figure 12).

     

Figure 12 - Removing insertion rod from access port

  1. Once the insertion rod is fully retracted, leave it in place for a minimum of three minutes.

  2. Close the access port valve.

  3. Remove the insertion rod completely from the access port.

 

NOTICE!

 

Do NOT quench in water; air cool only. If a method of cooling other than air cooling is utilized, test results will be unreliable.