7. MODELS
C
__ 420 __
__
C
COVOL input
T
Turbine input
L
Local mounting on the flow meter
R
DIN rail mounting inside a switchboard
P
Transmitter with analog output
H
Transmitter with analog output and HART communication
8. TECHNICAL CHARACTERISTICS
8.1. Power supply
2 wires, by means of the loop current.
The instrument has a protection diode to avoid damage if the power supply is connected
with inverted polarity .
Nominal voltage:
7.5 ... 36 Vdc
Power consumption:
20 mA
8.2. Totalizer
N. of digits:
7
Size of the digit:
8 mm
Reset:
By means of push button
8.3. Flow rate Indication
N. of digits:
5
Size of the digit:
5 mm
8.4. General characteristics
Ingress protection:
IP65
Ambient temperature range:
0 … +60 ºC
8.5. Input terminals
Terminal n.
COVOL
Turbine
1
Common
Ground
2
Live
Live
3
—
Live
8.6. Inputs characteristics
NOTE: The input terminals are not isolated from the 4-20 mA loop. Under no
circumstances can an electrical connection be made between the 4-20 mA loop and
the inputs. In the event of supplying various transmitters with the same power
supply one must make sure that the inputs isolated between each other (except the
shields of the turbine pick-ups which can be connected together).
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