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3000ZA-XL - Trace Oxygen Analyzer
At one location we exchanged the 3000ZA-XL and repaired the 3000TA-XL with PSU fault. They defined range two of the 3000ZA-XL as 0-5000ppm and applied cal gas with 3000ppm. Unit now shows message S1-27640 on the display but indicates the test gas correectly. Does this mean that it did not accept the cal gas? Does it continue with the old values but gives this fault message? S1-27640 is not a fault message. It is a diagnostic feature to check which sensor is on and what is the output. In this case S1 means the middle range sensor is on and 27640 is the output of the Analog to digital converter. This feature is turn on by pressing the Enter key during Analyze mode. It is turned off by pressing Enter again. I would recommnend disabling it by toggling the switch #4 on the DIP switch on the motherboard. Top of page What is the filtering time for the various settings on this unit?
Top of page How do you cold-start the unit and return all parameters to factory defaults? The analyzer has only four keys: Enter, Escape, Up and Down. Press Up and Down simultaneously at the power-up countdown screen. Then you will be prompted to press Enter to go ahead with cold-start. Top of page Can this unit be used in Krypton? Krypton as you know is very expenisve. As a result we have never done any testing with the unit on this gas. However, beyond that, the capillary hole in the sensor is designed for only N2 and Ar. So I am afriad that one would get poor results with the sensor on krypton, due to this problem, in the same way we had issues with the sensor in Helium. I would recommend instead the TAXL. Top of page For the 3000zaxl, exactly what conditions will trigger the failure alarm relay? If a span or zero calibration is in auto mode, and fails to settle within 60 minutes, the system alarm will be actuated. It is failsafe. Top of page |
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