Teledyne 6200T - Sulfides Analyzer - Manual (Page 74)

Getting Started Model 6200T Total Sulfur Analyzer
Teledyne Analytical Instruments 74
Span Gas for Multipoint Calibration
Some applications, such as EPA monitoring, require a multipoint calibration procedure
where span gases of different concentrations are needed. We recommend using a bottle
of calibrated SO
2
gas of higher concentration in conjunction with a gas dilution
calibrator such as a Teledyne Analytical Instruments Model T700 (Figure 3-17) This
type of calibrator precisely mixes a high concentration gas with zero air (both supplied
externally) to accurately produce span gas of the correct concentration. Linearity
profiles can be automated with this model and run unattended over night.
3.4. Startup, Functional Checks, and Initial Calibration
If you are unfamiliar with the 6200T principles of operation, we recommend that you
read Section 13. For information on navigating the analyzer’s software menus, refer to
the menu trees provided in Appendix A.
CAUTION - GENERAL SAFETY HAZARD
Do not look at the UV lamp while the unit is operating. UV light can
cause eye damage. Always use safety glasses made from UV blocking
material whenever working with the UV Lamp. (Generic plastic glasses
are not adequate).
3.4.1. Startup
After the electrical and pneumatic connections are made, an initial functional check is in
order. Turn on the instrument. The pump and exhaust fan should start immediately.
The display will show a momentary splash screen of the Teledyne Analytical
Instruments logo and other information during the initialization process while the CPU
loads the operating system, the firmware and the configuration data.
The analyzer should automatically switch to Sample Mode after completing the boot-up
sequence and start monitoring the
gas. However, there is an approximately one hour
warm-up period before reliable gas measurements can be taken. During the warm-up
period, the front panel display may show messages in the Parameters field.
3.4.1.1. Thermal Converter Startup
The MTS501 Converter uses a temperature controller for setting and controlling the
conversion temperature inside the quartz tube. The quartz tube will take 1 to 2 hours to
heat up and stabilize at the required temperature. The setpoint and control characteristics
have been set up at the factory, but if necessary, they are user adjustable. Refer to the
included manual for making fine adjustments to the temperature setpoint and control
characteristics. See also Sections 3.4.1.2 and 3.4.1.3.
To view the actual temperature, PV – Present Value, or the set point value, SV – Set-
point Value, press the PV/SV button in the lower left corner of the controller.
3.4.1.2. Changing the Temperature Setpoint
The temperature can be adjusted to temperatures other than 1000°C. However, TAI
recommends that the converter always be left at the nominal temperature of 1000°C.