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Automation, Inc.
™
TM_GF-
A
2
1
00_2200_R1A
21
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
Display
Description
IP Units
SI Units
*AR
x
=
Probe
x
duct free area (sq. ft.) where probe
x
is located (
x
=1 or 2)
0.00 SQF
0.000 SQM
*FLOW BUF=
Number of samples used to perform flow calculation (1 to 500)
10
10
*INT TIM=
Time between integration updates (0.1s - 15min)
1.0S
1.0S
*ALT=
Altitude for flow correction
0 ft
0 m
*FILTER
x
=
Output
x
Digital Noise Filter (
x
=1 or 2)
0 (off)
0 (off)
*OFF-GAIN
x
=
Output
x
Offset-Gain On/Off (
x
=1 or 2)
OFF
OFF
*O-GMODE
x
=
Output Offset-Gain Mode (
x
=1 or 2)
1 (direct entry)
1 (direct entry)
*GAIN
x
=
Output Gain factor (
x
=1 or 2)
1.000
1.000
*OFFSET
x
=
Output Offset factor (
x
=1 or 2)
0.000 FPM
0.000 MPS
Display
Description
IP Units
SI Units
*ALR SRC=
Alarm Enable/Disable and Alarm Source selection
OFF
OFF
*ALR TYP=
Alarm type (Deadband, Hi Limit or Low Limit) selection
DEADB
DEADB
*ASP=
Alarm set point value selection
0 CFM
0 LPS
*ALRM HYS =
Alarm Hysteresis (range in percentage) above and below the *ASP value
that results in alarm activation.
15%
15%
*ADEL =
Alarm Delay sets the time period that the Alarm condition must be
present before the Alarm is activated.
5S
5S
*ALRM POL =
Alarm relay contact configuration
(NO for normally open or NC for normally closed)
NO
NO
Display
Description
IP Units
SI Units
*LL=
Analog Output Low limit cutoff
0 CFM
0 LPS
*MS=
Analog Output Minimum Scale for Temperature
-20 F
-20 C
*SETP=
PID Set Point flow value
0 CFM
0 LPS
*INTRVL=
PID Update interval (seconds)
1.0s
1.0s
*ACTION=
Set PID control action:
Direct=Measurement and PID control are directly proportional
Reverse=Measurement and PID control are inversely proportional
Direct
Direct
*DEADB=
Deadband range (expressed as a percentage of *SETP= value)
10%
10%
*ON DEL=
Delay after power-up before the PID control output is active
30.0s
30.0s
*DIVISR=
PID Gain Divisor
1000
1000
*P GAIN=
Proportional gain term
10
10
*I GAIN=
Integral gain term
1
1
*D GAIN=
Derivative gain term
0
0
*MAX INT=
Maximum value for Integral state
20%
20%
*OUT
x
=
Analog output
x
signal range (
x
=1 or 2)
0-10VDC
FLOW1
FLOW1
*FS=
Analog Output
full scale value
5,000 CFM
25 LPS
*CTRL=
Sets Control Loop strategy; to follow flow output 1 flow, output 2 flow or
the flow difference between them
FLOW1
FLOW1
SYSTEM SETUP SUB-MENU
OUTPUT
x
SETUP SUB-MENU (
x
=1 or 2)
ALARM SETUP SUB-MENU
0-10VDC
*TYPE=
Analog output 1 and 2 Type (sets configuration of Analog Outputs)
Table 3. Factory Default Setup Menu Values