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6200A or 6200E - Total Sulphides Analyzer
How do I replace the thermocouple on this instrument? A procedure is available by downloading this PDF file. Top of page How do I replace the lamp on this instrument? And what is the part number for the lamp? A procedure is available by downloading this PDF file. The part number is L-314. Top of page What is the maximum pressure that can be applied to the unit? For the 6200, all gas ports are rated to 31 inches of Hg absolute with the exception of the calibrator that is rated to 50 psig. Top of page How long will the UV lamp last? Right now we are quoting 18-24 months for average lamp life. We have had a few lamps die in less then a year. A UV lamp can drift down from 3500mv to 600mv but the real key to testing a UV lamp is to repeak it both by adjusting the lamp and the UV reference pot. After you have peaked both the pot and the UV lamp and still do not get at least 2000mv it is a sign that the UV lamp is failing and should be replaced before it drops below 600mv. Top of page How often does the kicker need to be changed out? The kicker does not need replacement. It will last indefinitely. There can be issues if water is sucked through it, however, and it is possible to break. Therefore care is advised. Top of page How do I rebuild a KNF pump? A service note with complete instructions is available here. - PDF. Note: It is best to overtighten the screw in the center rather than undertighten it. If undertightened, pump damaged will result. Top of page How do I determine which thermocouple I need in the unit? Look at the thermocouple wiring. If it is a white cotton-like material, it is a Type K, TAI part number T01344. If there is a black plastic-like wrapping over the wires, it is a Type N, TAI part number TH-19. Top of page What is the password to access the higher functions of the analyzer? Can I add another password? All analyzers have a standard multi-level password in them. This is what letsthe user access high functions in the analyzer. The standard password is 818 and will automatically come up when prompted for the password. To get to the next level, the user will need to enter the 929 password. The 929 password is what lets you get at the factory options to enable the dilution ratio. There is a password in the analyzer that the customer can enable. We do not enable this normally in the analyzer. Pressing SETUP PASS ON ENTER will turn on the password. What this does is when in the main menu if any button is pressed, besides the TST button, the analyzer will ask for a password. This password is 101. Top of page The manual states that sample and span gasses must not come in contact with stainless steel or FEP materials. This is not a concern for the span gasses, but will the data be inaccurate if the sample gas is in contact with metal lines at some point in the operation? Should we use Teflon tubing to the instrument when possible? SO2 is a sticky gas. It likes to stick to stainless steel more than Teflon. It is not recommended to use stainless steel for this reason, but we do have lots of customers who use this analyzer with stainless steel as their sample inlet, though using stainless steel can result in higher response times. I have not heard of SO2 corroding the stainless steel and I do not think it does. We have used stainless steel lines with thousands of PPM of SO2 gas in them and have not had corrosion problems. Top of page What are the differences between the 6200A and 6200E? The 6200E is the newer version. Differences include: 1) New computer boards 2) A different power supply 3) The new unit supports dry relay contacts There is no significant difference in the performance specifications such as response time or accuracy. The detector and source are essentially the same. The 6200A is a retired model and no longer in production. Top of page What is the expected life of the photo multiplier tube? Typically three years or more. Top of page Can I get information on installing a Type-S thermocouple? Full instructions are available in this service note. Top of page What is a recommended piping diagram to bring the sample into the unit? Please review this drawing. Top of page How do I rebuild a KNF pump (P/N PU0000020)? Please review this document. Top of page What are the steps to change the displayed reading to 3 decimal places? Press Set-Up, More, VARS. Enter password 929. Select Concentration Precision, by pressing test, test, test button. You will see various numbers on the lower section. Select #3, for 3 decimal places. Top of page How can I extend the life of the UV lamp? Please check the following document for details: uv_lamp_life_rev_3.doc Top of page What is the proper way to deliver sample gas to the analyzer? Attached below is the typical piping diagram for the sample system utilized upfront of the Total Sulfur System. The inlet delivery pressure is going to vary from site to site depending upon what pressure drops you may have upfront of the Model 6200E. The inlet sample pressure should normally be reduced at a pressure of 1 to 2 psig, just upfront of the 6200E, as the vacuum pump is designed to draw the sample gas in at atmospheric pressure. What you need to protect against is the pump sucking in ambient air through the bypass leg - which is venting to atmospheric pressure. If this occurs, it will serve to dilute the sulfur content in the CO2 and the unit will report a false, low reading. Make sure you have positive flow through the bypass leg under these low pressure conditions and you are achieving the suggested sample flows. If you aren't getting sufficient flow through the bypass leg, then slightly increase the inlet sample pressure taking care not to overpressurize the 6200E. If you do overpressurize the sample system, I am told by Ilian that you will typically take out the connector at the quartz tube in the thermal converter. You'll hear a "pop" which you obviously want to avoid. 6200E_sample_system.pdf Top of page For a total sulfur unit with cal valves, can span gas be introduced and span completed through the sample valve instead easily? If so how to set it up this way in field? Yes, all they need to do is flow span gas to the sample port. After about 15minutes they can press CAL, SPAN, ENTER. This will calibrate the analyzer with Span Gas through the sample port. Top of page What are the 6200E installation requirements? Please refer to the following document: 6200E Installation.pdf Top of page TSSTB has disappered from a unit display in the field. Our tech was calibrating the flows on the calibrator and scrolling through the screens. The value and designator have dissapaered from the display. Any idea how to bring it back? If they are missing the TSSTB (the indicator for total sulfur stability) reading on the front panel they can try a couple of different things to get it back. First simply power cycle the analyzer and see if that causes to come back. If it doesn't, they will need to reset the RAM. To reset the RAM press SETUP MORE DIAG 929 ENTR, once in the DIAG menu scroll over till you get something that says MEMORY CONFIG or RESET MEMORY and hit ENTR. You will want to select the RAM and erase just the RAM. This will bring back the stability reading on the front panel. Top of page I changed the thermocouple in the converter and the Temp controller is reading all LLLLs. What did i do wrong? LLLLs mean that the FUJI temp controller is reading too low a temperature and will not try and heat the converter. Typically this is set at 0 deg C as it leaves the factory. If the thermocouple wires are backwards it will essentially be reading a negative temp, -25 if room temp. So if the room is warm, the wires must be reversed. Top of page What does oxy flow warning mean? Once is come on display, what conditions clear it? What is oxy flow? The warning limits of the OXY FLOW are 50cc's for the low and 300cc's for the high. The nominal OXY FLOW rate is 150cc's +/- 15%. In order to clear the warning the OXY FLOW will need to be higher than 50cc's otherwise the Warning will reappear. The OXY FLOW is the flow that is used to dilute the sample. There is a diluter block in the instrument. One portion of the block comes from the sample the other comes from the Scrubber on the rear panel of the instrument. The OXY FLOW is flow on the oxygen side. If you are not running the converter the lines coming from the instrument to the converter must be connected together bypassing the converter. Do not leave the connections open. Top of page What does the oxy flow message mean in the model 6200E and how do I clear it? The warning limits of the OXY FLOW are 50ccs for the low and 300ccs for the high. The nominal OXY FLOW rate is 150ccs +/- 15%. In order to clear the warning the OXY FLOW will need to be higher than 50ccs, otherwise the warning will reappear. Top of page What are the dimensions of the pumpless version of the 6200E? Analyzer box dimensions are 17" W x 7" H x 23.5" D (431.8 x 177.8 x 596.9mm). Converter box dimensions are 17" W x 7" H x 22" D (431.8 x 177.8 x 558.8mm). Top of page |
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