Omega Vehicle Security PSW490B, PSW790B manual Dimensions Inches Psid Ranges

	DIFFERENTIAL PRESSURE SWITCH –			DIFFERENTIAL PRESSURE SWITCH – PSID
		INCHES OF WATER
		B		A	Ø 0.28	D
			Ø 0.28
					(3 Holes)
			(3 Holes)
A	D		H	C	E
1/4 NPT			3/4 NPT
Female						F
			C
					3/4 NPT	H
	G
			1/4 NPT	1/4 NPT	1/4 NPT
				High	Low Pressure
			Female
		E		Pressure	Inlet
				Inlet
			DSW490B	B	DSW490B
						G

A

1/4 NPT FEMALE

B

E

0.28 THRU

F

(3 PLACES)

T IGNITION

O

EN

F

V

ERE T

URN

RE SPH

O

O

PENIN

G.

C

TO

P TM E O

FF

S

A

OR ORE OPERA LOS

N

U

F

F

TI

E

IO

R

D

O

R

B

Y

B

G.

H

T

E

T

U

A

W

H

Z

A

A

O IG

D

D

C H P T

®

M

C

’

E

O

A

T

R

T

V

U

U

E

R

R

N

O

IT

E

.

N

B

S

E

E

EI

C

T

D

TN

CIV

O

3/4 NPT

NA

.E

REFEPU

VA

AVA REM

R

(2 PLACES)

TNARUOC

EL

C

	1/4 NPT
I	FEMALE

PSW790B

B

E

0.28 THRU

F

(3 PLACES)

T IGNITION

O

EN

F

V

ERE T

URN

RE SPH

O

O

PENIN

G.

C

TO

P TM E O

FF

S

A

OR ORE OPERA LOS

N

U

F

F

TI

E

IO

O

E

E

N

D

R

B

Y

B

G

T

R

E

T

U

A

W

H

Z

A

A

O

IG

D

C H P

T

®

M

D

C

’

E

O

A

T

R

T

V

U

U

E

R

I

R

N

O

IT

N

E

B

.

S

EI

T

E

E

OC

VR

N

N

D

TN

.ECI

F

U

A

RE

EP

VA

T

AVA REM

R

A

NARUOC EL

C

3/4 NPT

(2 PLACES)

1/4 NPT HIGH

1/4 NPT

PRESSURE

LOW PRESSURE

INLET

INLET

PSW790B G

H

DIMENSIONS (Inches) – PSID Ranges

STYLE	A	B	C	D	E	F	G	H
DSW490B	4.0	3.25	3.31	2.75	2.31	1.19	2.31	2.27
DSW790B	7.78	5.20	4.38	3.88	3.58	1.22	2.31	.312

DIMENSIONS (Inches) – ˝H2O Differential Ranges

STYLE	A	B	C	D	E	F	G	H	I
DSW490B	5.69	4.0	3.25	3.31	5.13	–	1.43	2.75	–
DSW790B	6.38	5.20	4.38	3.88	3.96	1.22	–	.312	5.13