16
Ŷ3XOVHFRQWUROVHHSDJH
7KHÀRZUDWHLVDXWRPDWLFDOO\FRQWUROOHGE\WKHÀRZYROXPHPOSHUSXOVHDQGWKHSXOVHVLJQDOIUHTXHQF\IURPD
ÀRZPHWHU
,WWDNHVDERXWVHFRQGVIRUWKH,;WRFDWFKXSZLWKWKHFKDQJHRIWKHIUHTXHQF\,QRWKHUZRUGVWKHSXPSVWRSVVHF
-
onds after the pulse signal is stopped. Use the external interlock (or stop) signal to turn off the pump with no delay.
Example of use: Chemical dosing in a sewage treatment system
Ŷ%DWFKFRQWUROVHHSDJH
7KH,;GLVFKDUJHVDSUHVHWÀRZYROXPHSHUSXOVHDQGVWRSVZKHQLWLVFRPSOHWHG7KHSUHVHWRUUHPDLQLQJÀRZ
YROXPHLVVKRZQRQWKHFRQWUROOHUXQWLOLWKDVUHGXFHGWR]HUR,QWKLVFRQWUROPRGHWKHSXPSUXQVDWWKH0$1
speed (the pump speed in the manual mode). The pump behaviour can change depending on the setting of the
buffer. See below.
:KHQWKHEXIIHULV2))
Any input of the external pulse signal will be cancelled when the pump is activated for the earlier pulse input.
7KHQH[WGRVLQJEHFRPHVUHDG\DIWHUWKHSUHVHWÀRZYROXPHKDVEHHQFRPSOHWHG
*Note the control stops immediately when the key is pushed once.
Cancelled
3XPS
Run
Stop
Run
Stop
Run
3XOVHLQSXW
3UHVHWORZYROXPH
6LJQDORXW
EDWFKFRPSDODUP
Operational functions
Flow meter
Pulse signal
Flow
Pump
Supply tank
3XOVHVLJQDO
)ORZUDWH
0 ml/pulse
7LPH
10 sec
10 sec
10 sec
