16
ATIM_ACW-MR2-EX_UG_EN_V1.1
c)
Gas metering wire
You can connect up to two logical counter inputs. The logic input accepts a volt free dry contact
or a voltage whose high level does not exceed 5Vcc (push-pull type). The 'Cable break' (or
'Fraud') input sends information if the read head or the link to your meter is removed,
periodically when the meter reading is issued.
The reading heads of the counters are polarized, the wire of brown color
corresponds to the mass and the white wire is the impulse input.
In counter mode, the index issued starts at 0 when first put into service. It is not possible to
implement an offset on the ACW modem, this difference is to be taken into account at the
reception (server). The counter is saved in memory when changing the battery. The maximum
value of the index is 4,294,967,295, then it starts again at 0.
Type of cable to be used (other than CAB / MTRGAZ1):
recommended maximum length 1 meter and recommended diameter 0,9mm, strip the wire to
9mm.
ATIM can provide a cable suitable for CAB / MTRGAZ1 reference gas meters with an M16 IP40
connector, having the following characteristics:
6 AWG shielded 6-wire cable with a length of 2 meters.
DIN socoker side view
You can connect the wires of the cable on the terminal block,
inside the box.
The wires are pre-wired according to the table below:
