Calibration Procedures

• Dry sample in low heat using oven. It is suggested to weight sample prior to drying.
• When sample has lost all moisture, calibration can be started.
  Weight dried sample
• Add water by 2 percent increments.
  i.e. 4,000 grams – 2 percent water = 80 grams of water
  Turn T-90 on
• Using up or down arrows, scroll through the menu selection until Direct mode appears on the T-90 display. (It is recommended to erase all prior data saved in the T-90. (T-90 manual page 11))
• Take 10 readings for each percentage. Store each reading by pressing enter.
• After T-90 has hit full saturation (direct reading 409.5 percent), uploading data to C. Software is necessary.
• Uploading can be done by connecting the Trident™ to the P.C. using the supplied RS232 cable.
• Use instructions in the T-90 manual pages 14-17 to successfully accomplish calibration.
• Once analyzation has been completed with the T-90 P.C. Software, the Offset and the Gain will be displayed.
  Write down these two values.
• Return to the T-90 and enter a user program. (T-90 manual page 7 “Change user program”)
  Once the gain and offset have been enter
• d in the T-90, calibration has been completed.