Electrical connections
42/14-41 EN
Thermal Mass Flowmeter FMT200-ECO2
13
Active digital output wiring
The output current in the HIGH-mode must be limited to 1 mA when the active digital output is used (pas-
sive signal receiver). This is to ensure an output voltage U
a
> 15 V.
Passive digital output wiring
Using the passive output (active signal receiver), the output current in the LOW-mode must be limited to
– 20 mA. This is to ensure an output voltage U
a
< 2.5 V.
5.2.3
Replacement of Sensyflow eco1 measuring systems
Sensyflow eco1 and FMT200-ECO2 (Sensyflow eco2) are compatible. Using the appropriate electrical
adapter, FMT200-ECO2 can be connected to existing plants. As "interface" and "digital output" function-
ality is not available with Sensyflow eco1,
there is no wiring within the adapter for these functions.
