Murphy 45HE User Manual

15

20

140

160

120

10

80

60

100

Fingertip
Adjustable
Trip Point

PowerHall*
Transistor

Magnetized
Indicating
Pointer

45HE-95116B

®

FRANK W.

MFR.

Catalog Section 05/10/15

Revised 12-96

(00-02-0221)

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

The 45HE Series SWICHGAGE®is a monitoring
and alarm/shutdown device for industrial require­ments. It combines state-of-the-art Hall effect
switching and analog indication for Pressure,
Temperature or Level applications depending on
the model used.

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
or panel mount case designs.
single scale, and custom dials are also available.

surface mount

Dials are dual scale,

Basic Operation

Based on our proven OPL, SPL and OPLH Series
SWICHGAGE®models, the 45HE Series includes
two magnetic-field-actuated PowerHall* transis­tors. When the magnetized indicating pointer
meets one of the
Hall effect devices,
the corresponding
alarm or shutdown
transistor output
signal becomes
active. The 45HE
trip points are fin­gertip adjustable.

* Allegro MicroSystems, Inc., registered trademark.

Applications

The 45HE Series SWICHGAGE®models accurate­ly and reliably measure, indicate and control pres­sure, temperature and level in applications such as
gas compressor control panels, pumping applica­tions, industrial process applications.
45HE models are available for specific applications
such as monitoring oil well lead lines, storage tank
levels, automatic ON/OFF pump control, etc.

Optional Features

Remote Transmitter Option (-P4)

This factory-sealed, remote pressure transmitter
protects the 45PHE sensing element from line pres­sures of highly viscous and mildly corrosive fluids.
A 5 foot (1.5 m) stainless steel capillary tube trans­mits pressure from the diaphragm seal to the unit.
A 1 NPTM plated steel pulsation dampener is
included to help prevent damaging pulsation.

Features

PLC and Solid State Compatible

The Normally Open and Normally Closed ver­sions of the 45HE Series are suitable for Murphy
(and others) solid state TATTLETALE®annunci­ators and logic controllers, PLC’s and micro­processor-based controllers.

Low Switch Start-Up Override

A standard toggle switch is provided (N.O. and N.C.
surface mounted models) to override the low switch
during equipment start-up.

Latching Control Relay (BP Model)

The 45HEBP Series includes a latching control
relay for automatic ON/OFF control, either direct­ly or through a motor starter.

Freeze-proof Sensing (FP Model)

A freeze-proof sensing device is available for the
45LHE Series level SWICHGAGE®. The freeze­proof device inserts directly into the tank wall.
The 45LHEFP sensor is stainless steel with a
Buna-N rolling diaphragm.

Direct Transmitter Option (-P6)

The -P6 option is the direct mounted version of the

-P4 (remote transmitter option). This factory­sealed 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®.

Explosion-proof Option (-EX)

Most 45HE Series SWICHGAGE®devices are
available with an explosion-proof case for haz­ardous applications.

Warranty

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.

®

Specifications

3

1

Note 1

White

Red

Green

Black

24

+

–

+

–

Low

High

= 26 AWG (0.12 mm2)

Red= Positive Power Input
Green= Negative Power Input
White= Low Transistor Sinking Output
Black= High Transistor Sinking Output

Customer
Connections
12 or 24 VDC

7

9

6

A

5

B

8

3

4

1

Red

White

Red

Red

= 16 AWG (1.5 mm2)

= 26 AWG (0.12 mm

2

)

Brown

Relay Coils

Yellow

Blue

Green

Green

Black

Black

1

2

4

5

3

Green

Red

+

--

++

––

Set

Reset

Low

High

Contacts Shown Reset

(Low Limit has been Met)

Customer
Connections
120 VAC

7

9

6

8

3

4

1

Red

White

White

Black

Full Wave
Rectifier

Low

High

Contacts Shown Reset

(Low Limit has been Met)

= 18 AWG (1.0 mm

2

)

Brown

Yellow

Blue

Green

Black

Black

1
2

4

5

3

Green

Red

Red

= 16 AWG (1.5 mm2)

= 26 AWG (0.12 mm

2

)

+

–

+

–

N

H

7

9

A

5

B

4

1

Relay Coils

Set

Reset

312 4

Note 2

White

Red

Green

Black

+

–

+

–

Low

High

= 26 AWG (0.12 mm2)

Red= Positive Power Input
Green= Negative Power Input
White= Low Transistor Sinking Output
Black= High Transistor Sinking Output

Case: Die casted aluminum,
Dial: 4-1/2 in. (114 mm), white on black background.
Sensing Element: Bronze bourdon tube standard; 316 stainless steel or monel

are optional. 45LHEA and 45LHE Level models up to 20 ft. (6.09 m) brass
bellows is standard; stainless steel bellows is optional (see page 4).

Geared Movement: 302 and 304 stainless steel.
Lens: Clear Polycarbonate, UV stabilized, fog and scratch resistant.
SWICHGAGE®Sensor: PowerHall; outputs negative signal

(sinking transistor output) rated: 300 mA continuous.

SWICHGAGE®Set Points: 2-fingertip adjustable, visible on face-dial.
SWICHGAGE®Electrical Connection:

Surface Mount Case: Terminal block; 1/2 NPTF conduit connection.
Panel Mount Case: Wire leads, 18 AWG x 8 in. (1.0 mm

1/2 NPTM conduit connection.

Optional Conduit Connection: 24 AWG x 8 in. (0.22 mm

2

x 203 mm);

2

x 203 mm);

1/2 NPTM conduit connection.

Operating Temperature: -40 to 185°F (-40 to +85°C).
Storage Temperature: -77 to 185°F (-60 to 85°C).
Power Input: 4.5 to 28 VDC; 120 VAC/24VDC for Latching Control

Relay (BP) models with built-in transformer/rectifier.

Overrange: Do not exceed 30% above full range (all models).
Pressure Models Sensing Connection: Bottom connection 1/4 NPTM thru

1000 psi (6.89 MPa) [68.9 bar], or 1/2 NPTM 1500 psi (10.3 MPa) [103 bar]
thru 20,000 psi (137 MPa) [1378 bar], back connection optional.

Pressure Models Accuracy: ±2% for the first and last quarters of the scale,

the middle half of scale is ±1%.

Temperature Models Sensing Connections:

Capillary: 5 feet (1.5 m) PVC armored copper tube, standard.
Sensing Bulb: Copper, 1/2 in. (13 mm) O.D. x 7 in. (178 mm) length;

Sensing Bulb Connection: 1/2 NPTM.

Temperature Models Accuracy

Temperature Range Lower

Level Models Sensing Connections:

45LHE, 45LHEF: Bottom connection 1/4 NPTM.
Bellows Mov. Models (up to 20 ft. [6 m] range): Bottom connection 1/4 NPTF.
45LHEFP: 2 NPTM back connection.

Level Models Accuracy: ±2% for the first and last quarters of the scale,

the middle half of scale is ±1%.

(Other options available see “How to Order” section, page 4).
600 psi (4.14 MPa) [41.37 bar] pressure rating, for higher pressure

ratings the use of thermowell is recommended.

1

/4 Middle 1/2 Upper 1/4

-60 to 60°F ± 2°F ± 2°F ± 2°F
(-51 to 16°C) (± 1°C) (± 1°C) (± 1°C)

-40 to 136°F ± 4°F ± 2°F ± 2°F
(-40 to 58°C) (± 2°C) (± 1°C) (± 1°C)

15 to 250°F ± 8°F ± 2°F ± 2°F

(9 to 121°C) (± 4°C) (± 1°C) (±1°C)

130 to 350°F ± 8°F ± 2°F ±3°F
(60 to 180°C) (± 4°C) (± 1°C) (± 1.5°C)

260 to 450°F ± 8°F ± 2°F ± 3°F
(127 to 232°C) (± 4°C) (± 1°C) (± 1.5°C)

Internal Wiring

Important information: When using the 45HE SWICHGAGE®with inductive loads, we recommend installing a suppression diode across all coil(s).

45PHE, 45THE and

45LHE Series

Hall Effect Sensors Ratings: 300 mA continuous

Note 1: Start/Run Switch; Open for Start,

Closed for Run (surface mount models only).

Note 2: Start/Run Switch; Closed for Start,

Open for Run (surface mount models only).

45PHENC, 45THENC

and 45LHENC Series

45PHEBP, 45THEBP and

45LHEBP Series (12/24 VDC)

45PHEBP, 45THEBP and

45LHEBP Series (120 VAC)

Latching Relay Contact Ratings: SPDT Dry Relay Contacts, 10 A @ 120 VAC

120

120

120

5-7/16 in.

(138 mm)

2-57/64 in.

(73 mm)

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

Mounting Hole

4-3/4 in.

(121 mm)

diameter.

Optional conduit

and -ES Option

1/2 in. (13 mm)

8-7/16 in.

(214 mm)

3-3/8 in.
(86 mm)

Panel Mount

Square Case

*

models

do not

include

mounting

flange

7-7/8 in.

(200 mm)

3-15/16 in.

(100 mm)

4-1/32 in.
(102 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.

1/2 in.

(13 mm)

conduit

Dimensions

8 in.

(203 mm)

6-25/64 in.

(162 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

6-3/4 in.

(171 mm)

13/32 in.
(10 mm)
diameter

4 places

7-35/64 in.
(192 mm) dia.
Mounting hole required
for Panel mount models

3-3/8 in.

(86 mm)

1/2 NPT

optional

rear or side

conduit

3-3/8 in.
(86 mm)

120

120

120

5-7/16 in.

(138 mm)

2-57/64 in.

(73 mm)

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

Mounting Hole

4-3/4 in.

(121 mm)

diameter.

7 in.

(178 mm)

1/2 NPT

Compression Nut

Bulb Minimum Insertion

Optional

coduit
and -ES
Option,

1/2 in.

(13 mm)

8-7/16 in.

(214 mm)

3-3/8 in.
(86 mm)

Panel Mount

Square Case

**

models

do not

include

mounting

flange

7-7/8 in.

(200 mm)

3-15/16 in.

(100 mm)

4-1/32 in.
(102 mm)

9/32 in.
(7 mm) dia.
3 places

**

45THEE, 45THENCE and 45THEBPE versions feature square case,

but altered to fit standard round panel mounting–not pictured.

1/2 in.

(13 mm)

conduit

Process
Connection
2 NPT

Surface Mounted Case

10-13/16 in.

(275 mm)

4-1/8 in.

(105 mm)

Surface Mount 45PHE and 45LHE Series

Surface Mount 45THE Series

Panel Mount 45PHEF and 45LHEF Series

Panel Mount 45THEF Series

Explosion-proof -EX Option

Temperature Sensing Bulb

45LHEFP Freeze-proof

How to Order

®

FRANK W.

MFR.

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

45PHE (surface mount)
45PHEF (panel mount)
45PHEE (panel)

†

45PHEBP (surface)

45PHENC (surface)
45PHEFNC (panel)
45PHENCE (panel)
45PHEBPE (panel)

†
†

Base Models for Temperature

45THE (surface mount)
45THEF (panel mount)
45THEE (panel)

†

45THEBP (surface)

45THENC (surface)
45THEFNC (panel)
45THENCE (panel)
45THEBPE (panel)

†
†

Base Models for Level

45LHE (surface mount)
45LHEF (panel mount)
45LHEE (panel)

†

45LHEBP (surface)

45LHENC (surface)
45LHEFNC (panel)
45LHENCE (panel)
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.

= 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.
R1 = 1/2 NPT–up to 1000 psi.
S1 = 1/2 NPT–up to 1000 psi.
P1 = 1/2 NPT–up to 1000 psi.

Latching Control Relay Voltage (for “BP” models only)

Standard*(Do not specify) = 120 VAC systems.

2 = 12 VDC systems.
3 = 24 VAC systems.
4 = 24 VDC systems.

* Includes transformer/rectifier 120VAC/24VAC.

†

Features square case, but for panel mounting.

Pressure/Vacuum Range/Scale

30V
30V15
30V30
30V100
30V200
30V300
15
30
60
100
160
200
300
400
600
1000
1500
2000
3000
5000
10000
20000

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
0 - 30 psi
0 - 60 psi
0 - 100 psi
0 - 160 psi
0 - 200 psi
0 - 300 psi
0 - 400 psi
0 - 600 psi
0 - 1000 psi
0 - 1500 psi
0 - 2000 psi
0 - 3000 psi
0 - 5000 psi
0 - 10,000 psi
0 - 20,000 psi

-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
0 - 207 kPa
0 - 414 kPa
0 - 689 kPa
0 - 1.10 MPa
0 - 1.38 MPa
0 - 2.07 MPa
0 - 2.76 MPa
0 - 4.14 MPa
0 - 6.89 MPa
0 - 10.34 MPa
0 - 13.79 MPa
0 - 20.68 MPa
0 - 34.48 MPa
0 - 68.95 MPa
0 - 137.90 MPa

Options

BC = Back connected

bourdon tube

CC = Conduit connection
ES = Environmentally sealed
EX = Explosion-proof
EL = Explosion-proof less case
LC = Less case
P4 = Pressure transmitter

with 5 ft. (1.52 m)

P4L = Less pulsation dampener
P6 = Pressure transmitter

direct mount

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

Temperature (Specify one from each column)
Temperature Range Capillary Type Capillary Length

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

Level Range/Scale

Specify in feet

5**= 0 - 5 ft. (0-1.5 m) Dual scale

**= 0 - 10 ft. (0-3 m) Dual scale

10
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 feet

05 = 5 ft. (1.5 m)
10 = 10 ft. (3 m)
15 = 15 ft. (4.5 m)

etc.

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

NOTES: Standard calibra­tion is for water–specify if
other. To determine correct
range, add TOTAL
of liquid above the pressure
connection.
For elevated tanks subtract
tank elevation from gage
reading to determine
ACTUAL

Specify in meters

1.5M = 1.5 m
2M = 2 m

2.5M = 2.5 m

etc.

height

tank level.

**Bellows actuated level models instead of bourdon tube.

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.

Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje
San Luis Potosí, S.L.P.; México 78384

tel. [phone] fax [phone]
e-mail [e-mail]

■ Murphy Switch of California

P.O. Box 900788; Palmdale, California 93590; USA

tel. [phone] fax [phone]
e-mail [e-mail]

■ Frank W. Murphy France

tel. [phone] fax [phone]

Since 1939

■ Frank W. Murphy Manufacturer

P.O. Box 470248; Tulsa, Oklahoma 74147; USA

tel. [phone] fax [phone]
e-mail [e-mail]

■ Frank W. Murphy Southern Division

P.O. Box 1819; Rosenberg, Texas 77471; USA

tel. [phone] fax [phone]
e-mail [e-mail]

Printed in U.S.A.

■ Frank W. Murphy, Ltd.

Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.

tel. [phone] fax [phone] tlx 477088
e-mail [e-mail]

■ Frank W. Murphy Pte., Ltd.

26 Siglap Drive; Republic of Singapore 456153

tel. [phone] fax [phone]
e-mail [e-mail]

■ Murphek Pty., Ltd.

1620 Hume Highway; Campbellfield, Vic 3061; Australia

tel. [phone] fax [phone]