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18
Kv-value method
Computer-method
Kv-value method:
The kv-value of the valve to be measured is entered. Input
is completed by pressing the key “OK”. Now the measuring head is activated
by the flow meter and the bypass is closed automatically. The closing proce-
dure is indicated by the rotating symbols in the left and right display corners.
The closing procedure being completed (indicated by symbol “I”), it still takes
a short moment before the differential pressure measured as well as the resul-
ting flow rate is indicated. The menu “Store measurement” is reached by pres-
sing the key “OK”. Apart from “name”, “group” and “number”, differential pressure
and flow rate are stored. This data can be printed via the serial interface.
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Hydrocon R DN 020
preset’g 1:
preset’g 2:
l/h
l/h
preset’g new:
COMPUTER-METHOD
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Hydrocon R DN 025
presetting:
mbar
l/h
>STORE<
CHECK MESAUREMENT
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Kv-val.:
mbar
l/h
>STORE<
KV-VALUE METHOD
Attention: Each measurement with subsequent change of valve type
has to be completed by pressing the key !
Attention: Each measurement with subsequent change of valve type
has to be completed by pressing the key !
Computer method:
The valve manufacturer as well as the valve chosen in the
submenu “Valve-Setup” is indicated. At the prompt “Preset’g 1” enter the
presetting of the valve to be measured. Input is completed by pressing the key
“OK”. Now the measuring head is activated by the flow meter and the bypass
is closed automatically. The closing procedure is indicated by the rotating sym-
bols in the left and right display corners. The closing procedure being comple-
ted (indicated by the symbol “I”), it still takes a short moment before the flow
rate measured is indicated.
Now the valve has to be preset to the new presetting which is entered at the
prompt “Preset’g 2”. By pressing the key “OK”, the second flow value is indi-
cated on the display. The desired flow rate has to be entered now. Input is
completed by pressing the key "OK”. The flow meter now calculates the new
value of presetting which is indicated as “Preset’g new”. Now the valve is pre-
set according to the new value. By pressing the key “OK”, the menu “Check
Measurement” is reached. Here, the new presetting value, the resulting diffe-
rential pressure and the old and new flow rate (in comparison) are indicated.
After having completed control, the beginning of the menu can be reached by
pressing the key and a new measurement can be carried out.
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name:
group:
number:
>STORE<
STORE MEASUREMENT