Elis SONOELIS SE404X Design, Assembly And Service Manual page 18

ELIS PLZEŇ a. s.
A compact version of flow meter
Connector X4 serves the purposes of the equipment calibration, servicing and parameter setting at the
manufacturer's plant. The signal outputs (frequency, impulse and current outputs) are isolated and power from a
separate isolated power source. The frequency and impulse outputs can be used in either passive or active
operational modes, while the current output is always active. In view of the arrangement used (a common power
source and therefore the possibility of equalising currents flowing between the outputs), it is recommended not to
use more than two outputs in the active mode at any time. If the frequency and/or impulse outputs are used in
the passive mode (pins W1 through to W6 are disconnected), the optocoupler current shall not exceed 20 mA.
Pushbutton S1, if depressed, resets the data on the aggregate fluid volume that has passed through the flow
meter. Terminals 1 and 2 at terminal board X1 (in the case of a split version) or X2 (in the case of a compact
version of the meter) can be connected to a relay coil in series with an external AC power source and so provide
for indication of the flow direction or other selected parameter status. Thermometer Pt 100, if used, shall be
connected to terminals 1 to 5 at terminal board X2 (in the case of a split version) or X3 (in the case of a compact
version of the meter). The thermometer signal is used to convert the fluid volume data to mass data in special
flow meter configurations. If isolated voltage, frequency or impulse outputs are required, the W-pins shall be
connected as shown in the table below:
Type of el. unit
Frequency output
Impulse output
As shown in the schematic diagrams in section 6.2 above, isolated current outputs 0 to 20 or 4 to 20 mA and an
output for the RS 485 communication line are available at specific terminals and can be used according to the
requirements of the customer. In the split version of the meter, the ultrasonic sensor is connected to the signal
processing unit by two or four coaxial cables (see the schematic diagrams).
If the flow meter is to serve the purposes of a standard/invoicing meter, switch S3 and one section of switch S2
should be sealed and provided with calibration mark. The remaining section of switch S2 (S2:1) may be used to
select display of the instantaneous velocity or flow rate of the measured fluid (applies to flow meters in the
STANDARD or COMFORT configurations).
ELIS PLZEŇ a. s., Lucni 15, P. O. BOX 126, 304 26 Plzen, Czech Republic, Phone: +420/377517711, fax: +420/377517722
Design, Assembly and Service Manual
Ultrasonic flow meter SONOELIS SE404X,
SONOELIS SE406X
UP 2.00, UP 3.00, UP 4.00
W3 to W1
W2 to W1
Page 18 of 44
UP 2.10, UP 3.10, UP 4.10
W4 to W6
W5 to W6
Es90201K/c