32 of 66 | Options Setup - 3654 Portable H2/N2 Analyzer |
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3.4.5 Calibration Medium
You can use the Configuration, Calibration medium command to select how the sensor is to be calibrated.
Choose either in pure H2 or N2 gas at atmospheric pressure or in a liquid or gaseous solution at a known concentration of gas.
Choose OK when the desired medium is selected.
Note:
You can create a solution having a known H2 or N2 concentration by dissolving H2 or N2 in water at a measured temperature and pressure. Hach Ultra can provide equipment for generating such a solution. Alternatively, you can analyze a carbonated beverage independently by other acceptable means.
3.4.6 Locking Out the Instrument’s CAL Button
You can use the Configuration, Sensor Calibration Status menu to prevent an accidental sensor re- calibration from the instrument keyboard.
Choose Disabled to lock out the keyboard CAL button. To unlock this capability, choose Enabled. Choose OK when the desired mode is selected.
3.4.7 Rolling Average
Choose Rolling Average Status from the Configuration menu to enable or disable the averaging of gas concentration measurements.
To enable averaging on three successive gas measurements, choose Enable. Choose Disable to disable rolling average.
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