Warranty; Wiring; Important Information - COMAC CAL FLOW 38Imp Batch Manual

Warranty

Unprofessional installation or using the induction meters (devices) may result in a loss of warranty as
well as failure to comply with installation or operating conditions according to this manual.
In case of returning the meters for inspection or repair to the COMAC CAL s.r.o. factory, enclose please
the completed form, see the last page of this manual. Without having one, we will not be able to handle
your requirement for modification or possibly repair your meter correctly and promptly.

Wiring

It is necessary that the installation worker has the owner of a valid certification for the installation of
electrical equipment according to the legislation in the country where the installation is performed. When
the operations described below are performed unprofessionally, the claim on warranty becomes
extinct!!! Prior to any opening of the evaluation unit, switch off the power!!! It is necessary to bear in
mind that in case of detached design, the electronic evaluation unit and the flow sensor form an integral
unit which is calibrated and matched uniquely.

Important information

If it is possible to expect an increased level of unwanted electromagnetic field, we do not recommend
using the detached design. In places with strong electromagnetic interference (in the proximity of
frequency converters, electric motors, transformers, etc.), we recommend putting a line filter before the
meter in the power supply circuit.
Evaluation unit
As standard, the evaluation unit is delivered for mains power supply 230V / 50÷60Hz.
For securing the tightness of the evaluation unit cover, it is necessary to keep the seal intact and clean
(replace the damaged seal immediately). If the holes for cable entries are not occupied, it is necessary to
do it.
The flow meter signal outputs may only be connected to devices where accident protection is provided
by a safe low voltage and where generated voltages do not exceed the limits defined for safe low voltage.
In case of mains power 230V / 50÷60Hz, the meter is fed by a switched power supply which may contain
beats in acoustic spectre whereas this symptom does not indicate a failure of the meter.
Never make kinks on the cable and on individual conductors and do not let them cross mutually in the
terminal board area and always use a separate cable grommet for power supply.
Cover the unoccupied grommets with a piece of cable or a plastic plug (securing of tightness).
Technical and installation
manual FLOW 38 Batch (impulse) Page 4 (total 26) COMAC CAL s.r.o.