Dwyer Series ES User manual

Dwyer
Brand
Dwyer
Model
Series ES
Type
User manual

Dwyer Series ES is an electronic switch for pressure control that features a polysilicon thin film pressure sensor (Transducer). It is available for operation on pressure with fixed or variable differential. The standard electrical switch is a SPDT sealed mechanical relay. The wetted materials are 17-4PH and 316 stainless steel. The Dwyer pressure switch is furnished in the standard NEMA 4 and explosion proof NEMA 7/9 enclosure styles. Both enclosures are epoxy coated aluminum castings. Possible use cases include:

  • Monitoring and controlling pressure in a variety of industrial applications
  • Use as a safety device to prevent over-pressurization

Dwyer Series ES is an electronic switch for pressure control that features a polysilicon thin film pressure sensor (Transducer). It is available for operation on pressure with fixed or variable differential. The standard electrical switch is a SPDT sealed mechanical relay. The wetted materials are 17-4PH and 316 stainless steel. The Dwyer pressure switch is furnished in the standard NEMA 4 and explosion proof NEMA 7/9 enclosure styles. Both enclosures are epoxy coated aluminum castings. Possible use cases include:

  • Monitoring and controlling pressure in a variety of industrial applications
  • Use as a safety device to prevent over-pressurization
INTRODUCTION
The Dwyer pressure switch is a precision built control
device which features a polysilicon thin film pressure sen-
sor (Transducer). Controllers are available for operation on
pressure with fixed or variable differential. The standard
B
Ø 0.28
(3 Holes)
D
C
1/4 NPT Male
3/4 NPT
F
1/4 NPT
Female
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0.2
8
THRU
(3 PLACES)
1/4 NPT
FEMALE
3/4 NPT
(2 PLACES)
ES04/ES14
ES07
TYPE
HOLE STANDARD VARIATION
ES04/ES14 ES0S
A
3
⁄
4 NPT
3
⁄
4 NPT
B OMIT
3
⁄
4 NPT
Dimensions in ( ) are in millimeters.
Ranges –
60, 100, 200, 300, 500, 750, 1000, 2000, 3000, 5000,
7500, 10,000, 15,000, 20,000 psi
ABCDEFG
543
1
⁄4 3
5
⁄16 2
3
⁄4 2
5
⁄16 1
3
⁄16
(127) (102) (83) (84) (70) (59) (30)
HIJ
2
3
⁄4 2
3
⁄1
6
2
3
⁄4
(70) (56) (70)
1.8 lb
(.81 kg)
ABCDEFGH I
5
47
⁄64 5
13
⁄16 4
3
⁄8 3
7
⁄8 3
31
⁄32 1
7
⁄32 2
5
⁄16
5
⁄16 1
5
⁄16
(146) (132) (111) (99) (100) (31) (59) (8) (49)
electrical switch is a SPDT sealed mechanical relay. The
wetted materials are 17-4PH and 316 stainless steel.
The Dwyer pressure switch is furnished in the standard
NEMA 4 and explosion proof NEMA 7/9 enclosure styles.
Both enclosures are epoxy coated aluminum castings.
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361 U.S.A.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/982-9057 e-mail: info@dwyer-inst.com
Lit-by-Fax: 888/891-4963
©Copyright 2002 Dwyer instruments, Inc 2C-5/02 Printed in U.S.A. 1P-5/02 I&M009-10141-01/10
ES04/ES14& ES07 Series Electronic Switches for Pressure Control
Specifications - Installation and Operating Instructions
INSTALLATION
These controls are precision instruments and should
never be left with internal components exposed. After
installation, ensure that the covers are in place and the
conduit openings are closed.
MOUNTING ES04/ES14 & ES07 SERIES
There are three holes external to the enclosure for sur-
face mounting. The locations of these holes are shown
on the general dimension drawing. The controls may
also be mounted directly on the pressure line using the
pressure connection. When tightening the control to the
pressure line, always use the wrench flats or the hex on
the lower housing.
ELECTRICAL CONNECTIONS
Remove cover.
ES04/ES14 Series – Two screws hold cover to enclosure
ES07 Series – Cover unscrews
CONDUIT CONNECTIONS
Note: It is recommended that Teflon tape or other
sealant be used on the conduit, bushing or plug
threads to ensure the integrity of the enclosure.
ES04/ES14 Series Standard – One
3
⁄
4 NPT conduit hole
right side.
ES07 Series Standard – Two
3
⁄
4 NPT conduit holes with
one permanent plug. NEMA 7/9 enclosure require
proper conduit seals and breathers as per the National
Electrical Code.
ES04/ES14 and N7 Series – XJL Variation –
3
⁄
4 NPT
conduit holes with
3
⁄
4 to
1
⁄
2 NPT reducing bushings.
ES07 Series – XJL Variation –
Two
3
⁄
4 NPT conduit holes.
ES04/ES14 & ES07 SERIES
SPDT – Wire directly to the terminal block according to
circuit requirements. For 120Vac 60 Hz switch, wire
power lines to terminal marked ac. For 24 Vdc switch,
wire positive power line to terminal marked 24Vdc + and
wire negative power line to terminal marked 24Vdc –.
ES04/ES14 & ES07 SERIES
Adjustment of Setpoint
A 25 turn adjustment potentiometer is located at the
upper right corner on the inside of the enclosure.
For accurate setpoint calibration, mount the switch on a
calibration stand, a pump or deadweight gauge tester. A
suitable reference standard such as an Test Gauge is
necessary to observe changes in pressure.
As received, the pressure switch will normally be set to
approximately 90% of the indicated range. Pressurize the
system to the required setpoint and turn the adjustment
potentiometer until the switch changes mode. Clockwise
rotation of the potentiometer will increase the setpoint and
counter-clockwise rotation of the potentiometer will
decrease the setpoint. When the setpoint has been
achieved, raise and lower the pressure to ensure that the
setpoint id correct.
The indicating LEDs will show red when the pressure is
below the setpoint and green when the pressure is above
the setpoint.
For ES04/ES14 XEA switches equipped with optional
external setpoint adjustment only – The setpoint is adjust-
ed by a ten turn potentiometer located externally on the
top right of the case. The setpoint is adjusted as above.
Adjustment of Deadband – A four turn adjustment
potentiometer is located at the upper right corner on the
inside of the enclosure just below the setpoint poten-
tiometer.
The deadband is adjusted as above. Clockwise rotation
of the potentiometer will increase the deadband and
counter-clockwise rotation of the potentiometer will
decrease the deadband.
After installation of the control replace cover to protect
internal parts from the environment.
P
OWER +
POWER –
NC
C
NO
N
C
NO
C
POWER +
POWER -
SETPOINT POTENTIOMETER
DEADBAND POTENTIOMETER
INDICATING LEDs
E
S04 TERMINAL BLOCK
ES07 TERMINAL BLOCK
ES04/ES14 AND ES07 TERMINAL BLOCK
ES04/ES14& ES07 Series Electronic Switches for Pressure Control
Specifications - Installation and Operating Instructions
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361 U.S. A.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/982-9057 e-mail: info@dwyer-inst.com
Lit-by-Fax: 888/891-4963
©Copyright 2002 Dwyer instruments, Inc 2C-5/02 Printed in U.S.A. 1P-5/02 I&M009-10141-01/10
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Dwyer Series ES User manual

Dwyer
Brand
Dwyer
Model
Series ES
Type
User manual

Dwyer Series ES is an electronic switch for pressure control that features a polysilicon thin film pressure sensor (Transducer). It is available for operation on pressure with fixed or variable differential. The standard electrical switch is a SPDT sealed mechanical relay. The wetted materials are 17-4PH and 316 stainless steel. The Dwyer pressure switch is furnished in the standard NEMA 4 and explosion proof NEMA 7/9 enclosure styles. Both enclosures are epoxy coated aluminum castings. Possible use cases include:

  • Monitoring and controlling pressure in a variety of industrial applications
  • Use as a safety device to prevent over-pressurization
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