Walchem WebMaster Manual de instrucciones descargar pdf (Pagina 21)

17

Figure 7: Wiring Diagram for Flow Switches, Water Meter Contactors and Sensors

RS-232

RXD

TXD

GND

MAKEUP

WATER

METER

BLEED

WATER

METER

FLOW

SWTICH

REED SWITCH

WATERMETER-

CONTACTOR

FLOW

SWITCH

SHIELD

BLK

RED

RED/BLK POLARITY

NOT CRITICAL

POLARITY

NOT CRITICAL

HALL EFFECT

WATERMETER-

CONTACTOR

OR

PADDLEWHEEL

S

H

I

E

L

D

S

I

G

N

A

L

G

N

D

(

-

)

RED

BLK

DETAIL "A"

SEE DETAIL

"A"

MAKEUP

CONDUCTIVITY

OPTION

(WIRING THE SAME

AS DETAIL "C")

ORP OPTION

(WIRING THE

SAME AS

DETAIL "C" EXCEPT

NO T+ OR T-)

pH OPTION

(WIRING THE

SAME AS

DETAIL "C" EXCEPT NO

T+ OR T-)

SYSTEM COND

SEE DETAIL

"C"

N/C

RTS

CTS

P

O

W

E

R

(

+

)

T-

T+

IN-

IN+ +5

-5

SENSOR

DETAIL "C"

CONDUCTIVITY

ELECTRODE

SHIELD

TO GND STUD

B

L

U

W

H

T

/

B

L

U

O

R

N

W

H

T

/

O

R

N

G

R

N

W

H

T

/

G

R

N

+V

IN+

IN-

+V

IN+

IN-

T-

T+

IN-

IN+

+5

-5

SENSOR

DETAIL "C"

BLU

W

H

T

/

B

L

U

ORN

WHT/ORN

GRN

WHT/GRN

High Pressure

Conductivity

Electrode

-T

-T

+T

+T

-

+

-S

+S

-5

+5

W

H

T

G

R

N

B

L

K

R

E

D

Shield

(Drain wire)

to GND

stud on

front

panel

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 128 129

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