Diehl Metering Sharky 775 Instruction d'inspection et d'essai - Page 6
Parcourez en ligne ou téléchargez le pdf Instruction d'inspection et d'essai pour {nom_de_la_catégorie} Diehl Metering Sharky 775. Diehl Metering Sharky 775 18 pages. Ultrasonic energy meter
Imprimer la pageVolume [Liter] = (Coarse Volume + (fine volume/ 256) * 10^(UNITVOLV + COMMA))
*10^(-5- UNITVOLV)
Volume = (1377737890 + (19589/256)*10^(4))*10^(-7) = (1377737890 + 765195) * 10^-7 =
137,85030 Liter
Volume test by optical test pulses
2.3.
For this optical test pulses it is necessary to set the meter in calibration mode.
After setting the meter in calibration mode the meter sends optical pulse by IR port.
Pulse rates see in table below.
After pushing the button, "Out 4" appears in the display alternating with the pulse value,
for example 0.000003 m³. Independent in which display loop the meter is, or if it is in the
power-save mode, the meter will activate optical test.
The SHARKY now will send the test pulses for 3 hours, according to the pulse value which
is shown in the display. The value depends on the nominal size of the meter – table
below.
At this time the display change into the standard display (cumulated energy), if the button
will not be pressed within 4 minutes. Anyhow the optical pulses will be sending.
The display with „Out 4" alternating with the impulse value will also be shown in the
display in loop 3, after the information of the pulse outputs.
After 3 hours the meter will fall back automatically into normal mode and the output of
the optical test pulses will stop.
Note: Any communication by the optical port switch off the test mode
Volume test by test port
2.4.
The meter has an own test port. For this test it is not necessary to set the meter in the
calibration mode.
For this test is a special "volume- test- cable" available (code no. 3024794)
The wires are defined as:
Pulse output:
GND:
Note: The meter needs ~1min to activate the adapted cable
Puls output:
Open Drain; f
. ≤ 800 Hz
max
U
≤ 60 V
max.
I
. ≤ 20 mA
max
Volume test:
Industriestraße 13
91522 Ansbach
Deutschland
Tel. +49 981 18 06-015
www.diehl.com/metering
White
brown
Green (not connected)
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