Elis SONOELIS SE 4015 Product Application, Installation And Service Manual page 27

ELIS PLZEŇ a. s.
6.3 Automated meter test
The test shall only be used in extraordinary situations where the meter function is incorrect although all operational
conditions are within specified limits. Its purpose is to handle extraordinary situations where the meter function is
incorrect although all operational conditions are within specified limits.
Prior to initialising the test, check the correct interconnection between the evaluation electronic unit and the meter
sensor, the power supply line, the full sensor flooding and zero flow rate. Then switch off the power, depress push-
button S1 (resetting the aggregate volume) and, with S1 depressed, switch on the power again. Upon releasing S1, the
display will read
Depress and release S1 again, whereby, provided the sensor is fully flooded, the following message will appear on
the display:
Check the zero flow rate condition and depress and release S1. The test will continue by checking whether the
passage route for the ultrasonic ray in one direction is free. The display will read
If this test is successful, the message "OK" will appear on the display for four seconds, whereby a test of the ray
passage route in the other direction will commence.
After successfully passing this test section, the display will show the amplification values associated with the
ultrasonic ray passage in both directions; e.g..
Under normal circumstances, the amplification values should be between 4.50 and 4.60, and their difference should
not exceed 0.10.
After four seconds, the measurement of the ultrasonic wave propagation velocity will commence. The message on
the first display line will read:
After the velocity measurement, which takes approximately 1 s, the measured value will appear on the second line,
e.g.
If the measured value lies within the limits specified for the given fluid, the following message will appear on the
display
and, after another 4 seconds, the meter will resume the normal measurement mode.
ELIS PLZEŇ a. s., Luční 15, P. O. BOX 126, 304 26 Plzeň, Czech Republic, tel.: +420/377 517 711, fax: +420/377 517 722
Product application, installation and service manual
Ultrasonic Flow Meter SONOELIS SE 4015 and SE 4025
SENSOR FULL?
DOES NOT FLOW?
UTS THROUGH.1
UTS THROUGH.2
UTS THROUGHPUT
D1 = 4,56 D2 = 4,55
RATE LIMITS OK
TEST
LIQUID
TEST
TEST
UTS RATE
1510.6 m/s
END OF TEST
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Es 90 337 K/c