®
45HE-95116B
Revised 12-96
Catalog Section 05/10/15
(00-02-0221)
FRANK W.
MFR.
®
4-1/2 in. (114 mm) Dial Size Hall Effect SWICHGAGE
45HE Series
■
Proven Hall Effect Switch Technology for
Pressure, Temperature and Level Applications
■
■
■
■
■
■
Easy-to-Adjust Alarm or Shutdown Set Points
Normally Open or Normally Closed Systems
Superior Switching Accuracy and Flexibility
Ideal for DC Powered Solid State Controllers
Tough Die Casted Aluminum Housing
Explosion-Proof Case Available
Description
Applications
Optional Features
The 45HE Series SWICHGAGE® is a monitoring The 45HE Series SWICHGAGE® models accurate-
and alarm/shutdown device for industrial require- ly and reliably measure, indicate and control pres-
ments. It combines state-of-the-art Hall effect sure, temperature and level in applications such as
switching and analog indication for Pressure, gas compressor control panels, pumping applica-
Temperature or Level applications depending on tions, industrial process applications.
Remote Transmitter Option (-P4)
This factory-sealed, remote pressure transmitter
protects the 45PHE sensing element from line pres-
sures of highly viscous and mildly corrosive fluids.
A 5 foot (1.5 m) stainless steel capillary tube trans-
mits pressure from the diaphragm seal to the unit.
A 1 NPTM plated steel pulsation dampener is
included to help prevent damaging pulsation.
the model used.
45HE models are available for specific applications
such as monitoring oil well lead lines, storage tank
levels, automatic ON/OFF pump control, etc.
The 45HE is ideal for use with DC powered solid
state controllers because it operates with
Normally Open or Normally Closed Systems
from 4.5 to 28 VDC. 120 VAC On-Off control
available in Latching Control Relay (BP) models.
Most 45HE models are available in surface mount
or panel mount case designs. Dials are dual scale,
single scale, and custom dials are also available.
Features
Direct Transmitter Option (-P6)
PLC and Solid State Compatible
The Normally Open and Normally Closed ver-
sions of the 45HE Series are suitable for Murphy
(and others) solid state TATTLETALE® annunci-
ators and logic controllers, PLC’s and micro-
processor-based controllers.
The -P6 option is the direct mounted version of the
-P4 (remote transmitter option). This factory-
sealed mechanism consists of a 2 NPTM plated
steel diaphragm housing (304 stainless steel
diaphragm housing is optional), which attaches
directly to the 45PHE pressure SWICHGAGE®.
Basic Operation
Based on our proven OPL, SPL and OPLH Series
SWICHGAGE® models, the 45HE Series includes
two magnetic-field-actuated PowerHall* transis-
tors. When the magnetized indicating pointer
meets one of the
Low Switch Start-Up Override
A standard toggle switch is provided (N.O. and N.C. Explosion-proof Option (-EX)
surface mounted models) to override the low switch
during equipment start-up.
Most 45HE Series SWICHGAGE® devices are
available with an explosion-proof case for haz-
ardous applications.
Fingertip
Adjustable
Trip Point
PowerHall*
Transistor
Latching Control Relay (BP Model)
The 45HEBP Series includes a latching control
relay for automatic ON/OFF control, either direct-
ly or through a motor starter.
Hall effect devices,
the corresponding
alarm or shutdown
transistor output
signal becomes
active. The 45HE
trip points are fin-
gertip adjustable.
15
10
20
Freeze-proof Sensing (FP Model)
A freeze-proof sensing device is available for the
45LHE Series level SWICHGAGE®. The freeze-
proof device inserts directly into the tank wall.
The 45LHEFP sensor is stainless steel with a
Buna-N rolling diaphragm.
100
120
80
60
140
Warranty
160
A two-year limited warranty on materials and
workmanship is given with this Murphy product.
Details are available on request and are packed
with each unit.
Magnetized
Indicating
Pointer
* Allegro MicroSystems, Inc., registered trademark.
Dimensions
Surface Mount 45PHE and 45LHE Series
Panel Mount 45PHEF and 45LHEF Series
8-7/16 in.
(214 mm)
3-3/8 in.
(86 mm)
5-7/16 in.
(138 mm)
2-57/64 in.
(73 mm)
Panel Mount
Square Case
models
do not
3-15/16 in.
(100 mm)
*
4-1/32 in.
(102 mm)
120
120
include
mounting
flange
1/2 in.
(13 mm)
conduit
120
Mounting Hole
4-3/4 in.
(121 mm)
diameter.
1/4 in. (6 mm) dia.
holes (3 places.) on
5-13/64 in. (132 mm)
b.c. (bolt circle),
120 apart, clocking
as shown
Optional conduit
and -ES Option
1/2 in. (13 mm)
7-7/8 in.
(200 mm)
9/32 in.
(7 mm) dia.
3 places
45PHEE, 45LHEE, 45PHENCE, 45LHENCE, 45PHEBPE and 45LHEBPE models
feature square case, but altered to fit standard round panel mounting–not pictured.
*
Surface Mount 45THE Series
Panel Mount 45THEF Series
8-7/16 in.
3-3/8 in.
5-7/16 in.
(138 mm)
2-57/64 in.
(73 mm)
(214 mm)
(86 mm)
Panel Mount
3-15/16 in.
(100 mm)
Square Case
**
models
do not
4-1/32 in.
(102 mm)
120
120
include
mounting
flange
1/2 in.
(13 mm)
conduit
120
Mounting Hole
4-3/4 in.
(121 mm)
diameter.
Optional
coduit
and -ES
Option,
1/2 in.
1/4 in. (6 mm) dia.
holes (3 places.) on
5-13/64 in. (132 mm)
b.c. (bolt circle),
120 apart, clocking
as shown
7-7/8 in.
(200 mm)
9/32 in.
(13 mm)
(7 mm) dia.
3 places
Temperature Sensing Bulb
1/2 NPT
7 in.
(178 mm)
45THEE, 45THENCE and 45THEBPE versions feature square case,
but altered to fit standard round panel mounting–not pictured.
**
Bulb Minimum Insertion
Compression Nut
Explosion-proof -EX Option
45LHEFP Freeze-proof
6-25/64 in.
(162 mm)
8 in.
(203 mm)
10-13/16 in.
(275 mm)
4-1/8 in.
1/2 NPT
optional
rear or side
conduit
(105 mm)
3-3/8 in.
(86 mm)
8 in.
(203 mm)
6-3/4 in.
(171 mm)
3/8-16 UNC-2B
thread
7/8 in. (22 mm)
deep, 8 plc's
Process
Connection
2 NPT
13/32 in.
(10 mm)
diameter
4 places
7-35/64 in.
3-3/8 in.
(192 mm) dia.
(86 mm)
Surface Mounted Case
Mounting hole required
for Panel mount models
6-3/4 in. (171 mm)
How to Order
Specify model number. List options in alphabetical order (A to Z). Place a dash (–) between each option. See example below.
45PHE – R – 2 – 30 – CC
Base Models for Pressure
Pressure/Vacuum Range/Scale
45PHE (surface mount)
45PHENC (surface)
Options
BC = Back connected
bourdon tube
CC = Conduit connection
ES = Environmentally sealed
EX = Explosion-proof
EL = Explosion-proof less case
LC = Less case
30" vac - 0 psi
30" vac - 15 psi
30" vac - 30 psi
30" vac - 100 psi
30" vac - 200 psi
30" vac - 300 psi
0 - 15 psi
30V
-101 kPa - 0 kPa
-101 kPa - 103 kPa
-101 kPa - 207 kPa
-101 kPa - 689 kPa
-101 kPa - 1.38 MPa
-101 kPa - 2.07 MPa
0 - 103 kPa
45PHEF (panel mount)
45PHEE (panel)
45PHEFNC (panel)
45PHENCE (panel)
30V15
30V30
30V100
30V200
30V300
15
†
†
†
45PHEBP (surface)
45PHEBPE (panel)
Base Models for Temperature
45THE (surface mount)
45THENC (surface)
0 - 30 psi
30
0 - 207 kPa
45THEF (panel mount)
45THEE (panel)
45THEFNC (panel)
45THENCE (panel)
0 - 60 psi
60
0 - 414 kPa
P4 = Pressure transmitter
with 5 ft. (1.52 m)
†
†
0 - 100 psi
100
0 - 689 kPa
†
45THEBP (surface)
45THEBPE (panel)
0 - 160 psi
160
0 - 1.10 MPa
P4L = Less pulsation dampener
P6 = Pressure transmitter
direct mount
0 - 200 psi
0 - 300 psi
0 - 400 psi
200
300
400
0 - 1.38 MPa
0 - 2.07 MPa
0 - 2.76 MPa
Base Models for Level
P6S = Pressure transmitter direct
mount, 304 st. st. housing
RO = Restricting orifice
SH = Stainless steel external
hardware
T3 = Tamperproof bezel/lens
TS = Over/under range stop
VR = Vapor recovery compensator
45LHE (surface mount)
45LHENC (surface)
0 - 600 psi
600
0 - 4.14 MPa
0 - 6.89 MPa
45LHEF (panel mount)
45LHEFNC (panel)
0 - 1000 psi
0 - 1500 psi
0 - 2000 psi
0 - 3000 psi
0 - 5000 psi
0 - 10,000 psi
0 - 20,000 psi
1000
1500
2000
3000
5000
10000
20000
†
†
45LHEE (panel)
45LHENCE (panel)
0 - 10.34 MPa
0 - 13.79 MPa
0 - 20.68 MPa
0 - 34.48 MPa
0 - 68.95 MPa
0 - 137.90 MPa
†
45LHEBP (surface)
45LHEBPE (panel)
45LHEFP(freeze-proof)
Bourdon Tube/Bellows
A = Bronze bourdon tube with brass socket–up to 1000 psi.
= Brass bellows (level models 20 ft./6.09 m. and below only).
R = 316 Stainless steel bourdon tube with carbon steel socket.
S = 316 Stainless steel bourdon tube and socket.
Temperature (Specify one from each column)
Temperature Range
Capillary Type
Capillary Length
Specify in feet Specify in meters
05 = 5 ft. (1.5 m) 1.5M = 1.5 m
60 = -60 - 60°F (15.6°C)
136 = 40 - 136°F (57.8°C)
250 = 15 - 250°F (121°C)
350 = 130 - 350°F (177°C)
450 = 260 - 450°F (232°C)
P = PVC Armor/Copper Capillary
G = Galvanized/Copper Capillary
S = Stainless St./St. St. Capillary
T = Stainless St./Copper Capillary
= 316 Stainless steel bellows movement.
P = “K” Monel bourdon tube with monel 400 socket
(Special order. Check delivery and price.)
A1 = 1/2 NPT–up to 1000 psi.
10 = 10 ft. (3 m)
2M = 2 m
15 = 15 ft. (4.5 m) 2.5M = 2.5 m
etc.
etc.
R1 = 1/2 NPT–up to 1000 psi.
S1 = 1/2 NPT–up to 1000 psi.
P1 = 1/2 NPT–up to 1000 psi.
NOTES: Standard calibra-
tion is for water–specify if
other. To determine correct
range, add TOTAL height
of liquid above the pressure
connection.
For elevated tanks subtract
tank elevation from gage
reading to determine
Level Range/Scale
Specify in feet
5**= 0 - 5 ft. (0-1.5 m) Dual scale
10**= 0 - 10 ft. (0-3 m) Dual scale
20**= 0 - 20 ft. (0-6 m) Dual scale
30 = 0 - 30 ft. (0-9 m) Dual scale
60 = 0 - 60 ft. (0-18 m) Dual scale
120 = 0 - 120 ft. Single scale
Specify in meters
4M= 0 - 4 m Single scale
3.5M= 0 - 3.5 m Single scale
6M= 0 - 6 m Single scale
90 = 0 - 9 m Single scale
Latching Control Relay Voltage (for “BP” models only)
Standard*(Do not specify) = 120 VAC systems.
2 = 12 VDC systems.
3 = 24 VAC systems.
ACTUAL tank level.
4 = 24 VDC systems.
**Bellows actuated level models instead of bourdon tube.
*
Includes transformer/rectifier 120VAC/24VAC.
Features square case, but for panel mounting.
†
In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.
■ Murphy de México, S.A. de C.V.
■ Frank W. Murphy, Ltd.
®
FRANK W.
Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje
San Luis Potosí, S.L.P.; México 78384
tel. +52-48-206264 fax +52-48-206336
e-mail murmexsl@infosel.net.mx
Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.
tel. +44 1722 410055 fax +44 1722 410088 tlx 477088
e-mail sales@fwmurphy.co.uk
MFR.
Since 1939
■ Frank W. Murphy Manufacturer
P.O. Box 470248; Tulsa, Oklahoma 74147; USA
tel. (918) 627-3550 fax (918) 664-6146
e-mail fwmurphy@ionet.net
■ Frank W. Murphy Pte., Ltd.
■ Murphy Switch of California
26 Siglap Drive; Republic of Singapore 456153
tel. +65 241-3166 fax +65 241-8382
e-mail fwmsales@fwmurphy.com.sg
P.O. Box 900788; Palmdale, California 93590; USA
tel. (805) 272-4700 fax (805) 947-7570
e-mail sales@murphyswitch.com
■ Frank W. Murphy Southern Division
P.O. Box 1819; Rosenberg, Texas 77471; USA
tel. (281) 342-0297 fax (281) 341-6006
e-mail murphysd@intertex.net
■ Murphek Pty., Ltd.
1620 Hume Highway; Campbellfield, Vic 3061; Australia
tel. +61 3 9358-5555 fax +61 3 9358-5558
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tel. +33 1 30 762626 fax +33 1 30 763989
Printed in U.S.A.
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