Hydrogen oxygen XMTC6211 how to check?
Some customers of hydrogen plants in power stations purchased GE's XMTC6211 thermal hydrogen analyzer for detecting hydrogen content in oxygen. The general range is 0-5% or 0-2%. It is not known how to calibrate the analytical instrument. When the instrument is calibrated, for safety reasons, it is difficult to match 2% or 5% of the hydrogen in the range gas. In fact, when the instrument is actually calibrated in the factory, it is also calibrated with hydrogen in nitrogen. The following figure is An original factory calibration report sheet. At the time of calibration, a SPAN range gas with 3.5% hydrogen in nitrogen was used. The calibration report showed that the output signal of the thermal bridge component was equivalent to 1.87% hydrogen in the oxygen; so when the meter was calibrated again, we also 3.5% of the hydrogen standard gas in nitrogen needs to be configured as the range gas. There are two ways to verify the XMTC hydrogen analyzer.
Method 1. Use PanaView or IDM software to change the full-scale range of the instrument to 1.87% oxygen, save it, and then pass it into the 3.5% gas range. After the instrument is stable, switch the S3 dial switch of the instrument to the span position. Press Press the S1 button for 20s; after verifying, change the meter range back.
Option 2. Into the 3.5% range, the signal output is connected in series with the ammeter and the 4-20mA output is observed. If the instrument output signal is not 18.95mA as described in the calibration report, use PanaView or IDM software to change it to 18.95mA.
Steps through the verification of the secondary table:
1. Pass zero gas into the secondary meter calibration menu. After the meter output current is stable, the current value is input to the current window corresponding to the ZERO gas.
2. Into the range gas, enter the secondary table calibration menu. After the output current of the instrument is stable, the current value is input to the current window corresponding to the SPAN gas.
Detailed Consultation: Tianjin Xinqi Energy Technology Co., Ltd. GE Barna Instrument Division - 022-88322132 13512483205
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