16
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G
OLD
S
ERIES
GTC116 T
RANSMITTER
a measurable difference!
EBTRON
IG
_GTC
116_R
3
A
5.7
GTC116
‐
Analog
Output
Type
Selection
and
Setup
The
analog
output
signal
type
at
AO1
(OUT1,
airflow)
and
AO2
(OUT2,
temperature/alarm)
can
be
set
for
mA
or
VDC
output
by
setting
switches
SW1/SW2
(Figures
6
and
7)
and
by
selecting
the
4
‐
20mA,
0
‐
5
VDC
or
0
‐
10VDC
ranges
in
the
ANALOG
OUT
sub
menu
options
*AO1
RNGE=
/
*AO2
RNGE=
settings.
The
transmitter
is
shipped
from
the
factory
with
SW1/SW2
and
Setup
menu
options
*AO1
RNGE=
and
*AO2
RNGE=
set
for
4
‐
20mA.
5.7.1
GTC116
‐
Converting
Analog
Output
Signal
Values
to
Airflow
and
Temperature
Table
7
lists
specific
conversion
equations
for
analog
voltage
or
current
output
options.
5.7.2
GTC116
‐
AO1/AO2
OUTPUT
TEST
‐
Sending
a
Test
Output
Signal
to
the
Host
Control
System
A
test
output
signal
between
0
and
100%
of
the
full
scale
output
(4
‐
20
mA
or
0
‐
5VDC/0
‐
10VDC)
can
be
provided
by
the
GTC116
transmitter
to
verify
proper
conversion
of
the
output
signals
from
the
transmitter
at
the
host
control
system.
To
set
a
fixed
output
signal
for
airflow
and
temperature,
navigate
to
the
OUTPUT
TEST
submenu
in
the
TOOLS
menu.
OUT1
and
OUT2
tests
are
independently
accessed,
and
the
output
will
maintain
the
%
selected
until
the
“ESC”
button
is
pressed
and
normal
operation
resumes.
Table
7.
GTC116
Converting
Analog
Output
Values
to
Airflow/Temperature
TO CONVERT TO
Airflow (FPM, MPS)
Output Voltage/10 x FS1
Output Voltage/5 x FS1
(Output Current-4)/16 x FS1
Airflow (CFM)
Area (SQF) x Output/10 x FS1
Area (SQF) x Output/5 x FS1
Area (SQF) x (Output - 4)/16 x FS1
Airflow (LPS)
Area (SQM) x Output/10 x FS1 x 1000
Area (SQM) x Output/5 x FS1 x 1000
Area (SQM) x (Output - 4)/16 x FS1 x 1000
TO CONVERT TO
Airflow (CFM, LPS)
Output Voltage/10 x FS1
Output Voltage/5 x FS1
(Output Current - 4)/16 x FS1
TO CONVERT TO
Temp (°F,°C)
Output Voltage/10 x (FS2-MS2) +MS2
Output Voltage/5 x (FS2-MS2) +MS2
(Output Current - 4)/16 x (FS2-MS2) +MS2
NOTES:
FS1 is AO1 full scale analog output value from ANALOG OUT MENU.
FS2 is AO2 full scale analog output value from ANALOG OUT MENU.
MS2 is AO2 minimum scale analog output value from ANALOG OUT MENU.
0-10 VDC
0-5 VDC
4-20 mA
ANALOG OUTPUT SCALING AND TYPE
0-10 VDC
0-5 VDC
4-20 mA
When OUTPUT 2 is Configured as Temperature (°F,°C):
ANALOG OUTPUT SCALING AND TYPE
0-10 VDC
0-5 VDC
4-20 mA
ANALOG OUTPUT SCALING AND TYPE
When OUTPUT 1 is Configured as Linear Airflow (FPM, MPS):
When OUTPUT 1 is Configured as Volumetric Airflow (CFM, LPS):
