Automation, Inc.
™
TM_GF-
A
2
1
00_2200_R1A
27
GF-A2100
AND
GF-A2200 A
IRFLOW
M
EASUREMENT
S
TATION
Air Flow Measurement, PID Control and Alarm Solution - Analog Output
GreenTrol Automation, Inc.
•
156 Holly View Lane Loris, SC 29569
•
Toll Free: 877-4GN-TROL (877.446.8765)
•
Internet:
GreenTrol.com
Engaging and Using the Field Calibration Wizard
To engage the Field Calibration Wizard, simultaneously depress the “DOWN” and the “ENTER” buttons at any time dur-
ing normal operation. Figure 16 provides details of the FIELD CAL WIZARD menu and its use in applications for one/two
point adjustment of factory calibration. Note that the flow rate units of measure will be displayed in lower case letters
on the LCD display, indicating that the transmitter is operating with the Field Calibration Wizard engaged. If you wish to
disengage the Field Calibration Wizard and return to normal factory calibration, simultaneously depress the “DOWN” and
the “ENTER” buttons at any time during normal operation and set Field Calibration Wizard OFF as shown in Figure 16.
NOTE:
Once the airflow station has been calibrated in this manner, the Field Calibration Wizard must remain engaged.
Navigating through the Field Calibration Wizard Menu
Cal Points= 1
In Field Calibration Wizard mode,
the LCD display indicates the airflow
(in lowercase
cfm
) and temperature.
Set Flow 1
(ENSURE THAT FAN IS ON
AND SET TO DESIRED SPEED!)
FLOW1= 0
(Set to 0 – 999999cfm using
)
Wait. . .
Field Cal Done
AUTO FS= 100
Change FS= NO
During the 2-minute ‘
Wait . . .
” period,
the Field Calibration Wizard acquires
1200 samples of the airflow rate, aver-
ages the readings, and then indicates
"
Field Cal Done
" when complete.
Change FS= YES
*FS= 100CFM
SET FS?
Set Field Calibration
Wizard 2 On
FS= 100CFM
(Set to 0 – 15000 CFM using
)
SETUP
(See SETUP Menu)
Cal Points= 2
Set Flow 2
(ENSURE THAT FAN IS ON
AND SET TO DESIRED SPEED!)
FLOW2= 0
(Set to 0 – 999999cfm using
)
Wait. . .
Field Cal Done
AUTO FS= 100
Change FS= NO
Change FS= YES
*FS= 100CFM
SET FS?
FS= 100CFM
(Set to 0 – 15000 CFM using
)
SETUP
(See SETUP Menu)
Dashed lines indicate Menus when Cal Points=2 is selected
Initially, the
AUTO FS=
number displayed will be
the suggested
FS
value
based on the range of
the samples taken.
*Wiz2 Enable= NO
Set Wiz2 Enable?
Wiz2 Enable= NO
Wiz2 Enable= YES
Set Field Calibration
Wizard 2 Off
Initially, the
AUTO FS=
number displayed will be
the suggested
FS
value
based on the range of
the samples taken.
In Field Calibration Wizard mode,
the LCD display indicates the airflow
(in lowercase
cfm
) and temperature.
During the 2-minute ‘
Wait . . .
” period,
the Field Calibration Wizard acquires
1200 samples of the airflow rate, aver-
ages the readings, and then indicates
"
Field Cal Done
" when complete.
FIELD CAL WIZARD
*Wiz1 Enable= NO
Set Wiz1 Enable?
Wiz1 Enable= NO
Wiz1 Enable= YES
Set Field Calibration
Wizard 1On
Set Field Calibration
Wizard 1 Off
Wiz2 menu items are only available
in 2-Transmitter mode
Figure 16. Field Calibration Wizard Menu (all System of Units)