Kurz 410FTB, Руководство по эксплуатации

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Kurz B ‐ Series Operations Guide 4–65
Program Mode Advanced Setup
Option 27 — WGF Vapor Correction
To access the WGF Vapor Correction menu in Program mode:
1>
Press P .
2>
Enter the Advanced access code, and then press E .
3>
Press 2 to invoke the Quick Jump option.
4>
Press 27 for the WGF Correction menu, and then press E .
WGF CORRECTION
>ENABLED
When enabled, WGF Correction removes the effects of the water vapor (assuming the
process is saturated with water vapor or has 100% humidity) and reports a dry gas flow
measurement.
5>
Use the arrow keys to select ENABLED or DISABLED and then press E .
PROCESS TMAX
>106.000000 DEGF
The Process TMAX prompt appears.
The flow meter measures condensing air or biogas containing vapor when providing
the wet gas measurement. The saturation level is determined by the pressure and the
temperature. The process pressure is determined using Option13 ‐ Calibration Data,
while the temperature is measured live by the meter.
To limit the water vapor correction in an overheated process (such as a biogas pipe in
the sun or downstream of the vapor source), enter the maximum temperature when
the gas is saturated. This is the estimated maximum water vapor saturation
temperature in the pipe. For a digester application, this will match the digester
temperature (a typical digester operates at 100°F).
If this value is set too high, it will overcorrect the wet ‐ to ‐ dry flow rate. The unit of
measurement is either Celsius or Fahrenheit. If the TMAX value is set to zero (0.0), the
flow meter will output the wet or condensing gas flow rate, effectively disabling the
correction.
6>
Use the number keys to enter a value and then press E .
PROCESS PRESSURE
>14.7000000 PSI
The Process Pressure prompt appears.
This is the pressure in the line where the flow is being measured. The unit of
measurement is either kPA or PSI.
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