Reverse osmosis system
GENO-OSMO RO 125K
Order no.
285 752 940-inter Edited by: phar-mrie G:\BA-752940-INTER_285_RO_125K.DOCX
27
Terminal no.
Termi-
nal
Function (core colour)
Note
X8
18
DS_HP Pressure switch high-pressure pump
Feed water negative pressure, dry-run
protection high-pressure pump
19
+24V
Transmitter voltage 24 VDC
20
DS_PS Pressure switch pressure booster pump
Pressure switch for controlling the pressure
booster pump (GENO-OSMO RO 125K-TS
or AVRO 125 TS integrated in the system).
For the RO/AVRO 125-TL version, a jumper
must be inserted at terminals X8 20/21.
21
+24V
Transmitter voltage 24 VDC
22
CLOSE Release input close
Shutdown of the system when the
thermal protection contact in the
HP pump is activated.
Block system from outside, e.g.
pretreatment, residual hardness ... .
For this purpose, an on-site NC contact
must be connected in series to the
thermal circuit breaker.
23
+24V
Transmitter voltage 24 VDC
X9
35
Shield-
ing
Conductive 2-electrode
measuring cell, not
temperature-compensated,
cell constant 0.1 or 1.0
Option:
Conductivity measurement
36
LF E
White
37
LF V
Brown
Relay
K1
31
34
Release signal/start of
analysis
Hardness control monitoring
device
Contact is closed
when system is producing permeate.
GENO-Softwatch Komfort:
connect to terminals 16/17.
Arrangement of the components on the mounting rails, accessible
after removal of the control unit:
Protective grounding
conductor, mounted
underneath the two
fuses F2 and F3.
Fig. D-2: Position of protective grounding conductor terminal
