Teledyne 6200T - Sulfides Analyzer - Manual (Page 75)

6200T Total Sulfur Analyzer Getting Started
Teledyne Analytical Instruments 75
The converter has not been tested for conversion efficiency or reliability at other
temperatures, and TAI does not guarantee warranty support or that the converter will
meet published specifications if the operating temperature is changed. To adjust the
operating temperature:
1. Select SV with the PV/SV button,
2. Select the Set-Point value at approximately 1000°C by pressing the "up-arrow"
under the digit you want to change, (the digit will flash).
NOTE:
DO NOT SET THE TEMPERATURE HIGHER THAN 1050°C
3. Press the "up-arrow" under the digit or the "down-arrow" at the left to scroll the
digit to the desired value.
4. Repeat for each digit.
5. Press the ENTER button.
6. Select PV with the PV/SV button to observe the actual temperature. After
making a setpoint change, allow the temperature to equilibrate for a minimum
of 30 to 45 minutes.
3.4.1.3. Adjusting the P-I-D Parameters
In the event that the control parameters must be changed or in the event that a new
controller is installed, it must be reprogrammed to suit the thermal characteristics of the
instrument. It is recommended that the Auto Tune function be used to set the control
functions if reprogramming is necessary.
The following table is a guide to the approximate values for setting the parameters that
will produce the initial settings for the auto-tune function. Below is a summary of the
auto-tune procedure, refer to the Fuji Manual for more detailed information.
Auto-Tune
To perform the Auto Tune function:
1. Set the SV to the desired temperature.
2. Set the parameter A7 to 1.
3. Press ENTER.
The controller will begin the auto-tune process, which takes several minutes. The
decimal point at the lower right of the display will blink, indicating the controller is
auto-tuning. During the process, the temperature may oscillate
100°C or more. When
the process is completed, the decimal point will stop blinking.
NOTE:
It is normal for the ceramic heating element to emit a red glow at the operating temperature.