Fluid Components International GF03 - Manual (Page 39)

Doc. No. 06EN003352 Rev. B 3 5 Model GF03 Flow Meter
FLUID COMPONENTS INTERNATIONAL LLC http://www.fluidcomponents.com
The flowmeter would be calibrated in both nitrogen and the process gas, then the information
would be stored in Group 1 and 2. An auto-select temperature switch point of 150 °F would
allow the flowmeter to toggle automatically between nitrogen and the process gas when the
switch point is crossed. If requested, the factory, will configure the flowmeter for the Auto-
Select mode from the application information supplied at the time of the order. Generally,
there will be no need to change the settings, however, the switch point values can be adjusted
if necessary.
w To enter a new temperature switch point(s) for the Auto-Select mode:
1. Press 4, the Miscellaneous option.
2. Press 1, the Set Group option.
2. Press 2, the Set Auto-Select option.
3. Press 2, the By Temperature option. Enter the user password (if it is enabled).
4. Enter the number groups involved in the Auto-Selecting. (Zero to disable.)
5. Enter the switch point temperature(s).
NOTE: The minimum and maximum temperatures for adjacent Groups must be
separated by a least 20°F (11°C).
w To enable or disable the Auto-Select mode:
1. Press 4, the Miscellaneous option.
2. Press 1, the Set Group option.
3. Press 3, the Enable Auto-Select option. Auto-Select will toggle on or off
depending on its previous state. Enter the user password (if it is enabled).
NOTE: When changing system parameters such as flow rate units the Auto-Select
mode must be turned off.
The Link Groups option enables the flowmeter to measure flow ranges of greater than 100:1
to up to 1000:1. (Turndown is defined as the maximum flow rate divided by the minimum flow
rate.) This function is similar to the LT Series Extended Range. Links Groups can only be set
by the factory. The Link Groups mode operates transparently (as if the flowmeter were
operating in normal mode), although, when changing system parameters there are a few extra
steps that need to be taken.
w To determine if the flowmeter is in Link Groups mode:
Press 1, the Normal Operation option. The mode of operation is displayed on the last line.
Link is displayed if the link groups option is enabled.
If the flowmeter's link groups option is enabled, then changes in system parameters must be
made for each group. For instance, if the flow rate units are changed, the flow rate units for
each linked group must be changed.
w To change system parameters in Link Groups mode:
1.
Press 5, the Verify option.
2. Press 8. Scroll the display to the fourth window. The Link Groups mode is displayed
on the third line.
3. Press Home, 7, 3 and 7, the Link Groups option. Enter 9 4 2 to enable the function.
4. Press 4 to disable the Link Groups option.
5. Make the parameter changes for all groups, switching between groups using the Set
Group option, 4.1.1.
6. Re-Link Groups from menu level 7.3.7 by repeating step 3. Reset the link to the prior
setting.
NOTE: The link groups (extended range) and auto-select modes cannot be used
simultaneously.
Link Groups
(Extended Range
Emulation)