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Atrato_Instruction_Manual_0322
®
Pin Assignments:
The options for each PIN are:
Not Used
Input or
Output
Each of the PIN Assignments can be configured as
either an input or an output function.
The operation to modify PIN 6 and PIN 7 is identical
within the software, with the exception of the type of
transistor pulse output:
•
PIN 6 is PNP, whilst PIN 7 is a NPN type.
The options for each PIN, are:
Not Used
Input or
Output
NOTE:
These instructions are the same for PIN 6 and PIN 7 with the exception of the transistor
wiring and operation.
For example: For PIN 7 (NPN) the i
dle state is switch ‘open’ which will be a high V
olt output if
there is a pull-up in the circuit. PIN 6 (PNP) would be the opposite, at zero Volt.
Output
If Output is selected the output options are:
•
Pulse
•
Single/ Dual flow alarm
•
Reverse Flow
Pulse:
Enter the number of pulses per unit volume
required. This figure can be adjusted to suit the
application and the flow range required from the
meter.
The maximum output frequency is 1000 Hz so care
must be taken to ensure that this pulse rate is not
exceeded.
Example Wiring for NPN and PNP pulse outputs:
NOTE:
Best practice is to place Pull Resistor up near target device
