Manual FLOW 38 Page 24 (total 54) COMAC CAL s.r.o.
Putting into operation
Prior to connection to power supply, check the device installation accuracy in accordance with
“Installation in pipeline“ and “Wiring” chapters.
If you wish the meter to take measurement as precisely as possible right after powering up, it is a good
idea to fill the flow sensor with water, one or two days before its installation, so that all of its electrodes
are flooded. Just before the installation, the water is discharged and the sensor is installed into piping.
Right after installation, piping is filled with a medium so that the electrodes cannot dry off.
If the meter has no electrode for empty tube detection, do not connect the meter to power before filling
the system with the fluid to be measured and power off the meter before system discharge.
Once the meter is powered up, the green LED on the front glazed panel is lit, confirming the supply
voltage on the control PCB and stabilization of parameters of the meter takes place subsequently. The
stabilization is indicated on the meter's display. After that period of time, the meter starts measuring.
Meter status:
It is displayed continuously on the screen as one of the main menu items and in case of a non-standard
state or a failure, this is displayed by alternating indication of the status and main menu basic data and
the operator is warned by a text. The meter status is divided into 4 basic groups:
1) OK everything is all right
2) Warning – the meter takes measurement but some of the parameters are out of range
3) Error critical error – the meter does not take measurement
4) Empty tube if the EMPTY TUBE TEST function is activated
Flow direction:
The arrow indicates the direction liquid flow inside the sensor and thus the correct orientation of the
meter's sensor for installation in piping. In case of inversely performed installation, it is possible to
toggle the direction in electronics between positive/negative and thus avoid incorrect value imaging
and reading out .
Basic parameter settings
The meter or flow meter parameters are set by the manufacturer in accordance with the purchase order.
If these values are not indicated in your purchase order, the meter will be set up using the default
parameters in accordance with the meter's range. The operator can make modifications by means of three
buttons on the meter's panel or through the RS485 interface.
Safety rules for operator
Any interventions in the inductive flow sensor and evaluation unit itself are illegal on the part of operator
and they may lead to direct scalding by medium. Perform electrical connection always after powering
off.
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