23
MAN-147-0018-A
The pinout of this connector is shown below:
The logger does not supply any power to the output. The output takes the form of an
electronic switch (transistor), which can either be open or closed. When closed, the
current path or is between the output pin and ground.
The maximum rated voltage is 12V (D.C.)
The maximum rated current is 120mA.
A common use of the Output pins is for pulse replication (of meter pulses that are input
to the Flow channels). Where this is implemented:
•
Flow input 1 is replicated to Output 1
•
Flow input 2 is replicated to Output 2
•
Flow input 3 is replicated to Output 3
•
Flow input 4 is replicated to Output 4
The Output signals may also be used to activate external equipment.
In order to use the outputs, a suitable cable is required (the exact requirements will
depend on the equipment the logger is being used with; discuss with your HWM
representative). If cables with bare tails need to be interconnected, refer to the
guidance in section 5.5.
Use IDT to complete the setup, depending on your application for the output.
5.8.
E
XTERNAL
B
ATTERY
The use of an external battery is optional for many installations but may be required to
support the logger in order to obtain the required length of service.
For best battery life, orient the external battery in its preferred orientation (refer to the
labelling on the battery). Ensure the battery is secure in its installation position (so it
cannot fall). Then connect it to the logger.
The logger connection for an external battery will be presented via a (6-pin or 10 pin)
connector that is shared with the programming interface (labelled
“COMMS”
).
The cable that is used for interconnecting the external battery pack to the logger will
only include the pins required for supply of power; pins assigned for communications
purposes will not be fitted.
The external battery connection must be temporarily disconnected whenever a logger
programming cable needs to be attached.
5.9.
S
ONIC
S
ENS
3
Where a SonicSens3 interface is available on your logger, it will have a 6-pin connector,
similar to that shown in Figure 7, on page 12.
Refer to the SonicSens-3 user-guide (MAN-153-0001) for instructions on how to install
and setup the sensor for operation.
Logger bulkhead connector pinout : 3-pin Outputs
Pin
A
B
C
Signal
Output 1
Output 2
GND
