10
Sensyflow FMT200-ECO2
THERMAL MASS FLOWMETER | OI/FMT200-ECO2-EN REV. H
… 5 Installation
Electrical connections
Terminal layout
Please use the supplied cable for the electrical connection of the
flowmeter sensor. It is connected to the sensor with the plug.
Use a 24 V DC power supply with safe isolation in accordance
with EN 61010 and IEC 950 with a maximum output power of
< 150 W only.
Note
The Sensyflow eco1 and Sensyflow FMT200-ECO2 measuring
systems are compatible. With use of the appropriate adapter
plug, the Sensyflow FMT200-ECO2 can be connected to existing
installations.
As the ‘interface’ and ‘digital output’ functionalities are not
available in Sensyflow eco1, they are not wired-on in the adapter
plug.
A
Sensor
B
Connection cable
Figure 5: Electrical connection
Coupler connector
Sub-D connector, series 712, 8-pin, IP 65
Pin
Color
Function / comments
1
White
Analog output, signal (+)
2
Brown
RS 232C TxD – transmi data
3
Green
Pulse / frequency output, signal (+)
4
Yellow
Power 24 V DC
5
Gray
Power supply GND
6
Pink
RS 232C RxD – receive data
7
Blue
Analog output, GND
8
Red
Pulse / frequency RS 232C, GND
Shield
—
Functional earth
Note
Insulate any unused wire ends.
Electrical data for inputs and outputs
Power supply
Integral mount design
Pin / color
4+ (yellow) /
5− (gray)
Operating voltage
24 V DC (±10 %)
Input Current
Peak < 1 A; operation < 0.6 A
Fuse
At least 2 A slow-blow
Power consumption
< 15 W
Analog output
Can be optionally configured as current output (0 (4) to 20 mA)
or voltage output (0 to 10 (5) V).
Current output
active*
Pin / color
1+ (white) /
7− (blue)
Output signal
0 (4) to 20 mA
Signal in the event of an
error
< 3.5 mA or > 22 mA
Load R
B
< 500
Ω
Voltage output
Active
Pin / color
1+ (white) /
7− (blue)
Output signal
0 to 10 (5) V
Signal in the event of an
error
Min. or max.
Input Current
< 1 mA
* When selecting the current output 0 (4) to 20 mA, the analog output
supplies an active signal. The device delivers the current independently
without external power supply.
