DigitalFlow™ GF868 Programming Manual (1-Channel) 27
Chapter 1. Programming Site Data
1.10.3 Initializing the System
Use this option to initialize (reset) many of the parameters within the SETUP menu to their default values. These
parameters include: Signal Low Limit, Correlation Peak Limit, Velocity Low and High Limits, Acceleration Limit,
Amplitude Discrimination Low, Amplitude Discrimination High, Delta T Offset, Skan T Offset, % of Peak and XMIT
Sample Size. They do not include: M>S_Switch, # Shifts, A Divisor, # Transmit Pulses, T WINDOW and R
WINDOW, which remain at their last programmed values.
1. To enter the INIT submenu, press [F3] at the SETUP window.
2. Press [F1] = NO to keep the current values or press [F2] = YES to reset all values to their default settings.
1.10.4 Setting Advanced Parameters
The ADVAN option enables you to access the more advanced features of the GF868. In this option you can perform two
functions:
• enable mass flow (calculated for static fluid density)
• enter a table of K-factors (based on velocity or Reynolds number) that compensates for non-linear flow rates (see
the next page)
To enter the ADVAN submenu, press [F4] at the SETUP window.
1.10.4a Static Density?
1. Press [F1] = MASS to enter the Mass Flow option.
2. At the Static Density? prompt, press [F1] = NO or [F2] = YES. If you press NO, the GF868 returns to the Advanced
Features prompt.
3. If you press YES, enter the Fluid Density of the gas to be measured and press [ENT]. (The meter will only accept
values from 0.00001- 100 lb/ft
3
.)
The GF868 returns to the Advanced Features prompt.
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