Murphy SPLBP, 45TE, SPLG, 45TEBP, SPLC User Manual

SPL-92106N page 1 of 4

Installation for 4-1/2 in. (114 mm) dial

®

Temperature MURPHYGAGE

Model Series: SPLG, SPLC, SPLBP, 45TE and 45TEBP
Options: -OS and -ES

and SWICHGAGE

®

SPL-92106N

Revised 04-04

Section 10

(00-02-0167)

Please read the following instructions before installing.

A visual inspection is recommended before mounting.

General Information and these installation instructions are intended for all 4-1/2 in. (114 mm) dial temperature models.

GENERAL INFORMATION

*

WARNING

BEFORE BEGINNING INSTALLATION OF THIS MURPHY PRODUCT

✔

Disconnect all electrical power to the machine.

✔

Make sure the machine cannot operate during installation.

✔

Follow all safety warnings of the machine manufacturer.

✔

Read and follow all installation instructions.

Specifications

SPLC and SPLFC

SWICHGAGE®instruments have high
and low limit contacts to monitor, alarm or shutdown. The SPLC
has a flanged case. SPLFC has a flush mount case intended for
installation within a panel. A method to override the low limit
contact for startup is provided on most models (see Operation
Test Instructions on page 3).

45TE and 45TEF Series

are versions of the SPL Series
with 2-snap acting SPDT switches instead of the pointer type con­tacts. The 45TE Series does not include low contact lockout.

SPLBP and 45TEBP

models are designed to start and stop
electric motor driven equipment. The pilot duty contacts are con­nected to a latching control relay for automatic ON/OFF control,
either directly or through a motor starter.

Options -OS and -ES

The -OS (oil sealed case) and the -ES (environment sealed case)
options for corrosive environment feature flush mount case design
to be installed within a panel.

Precautions

■

Do NOT exceed rated temperature range.

■

Use shock mounts as necessary to protect from vibration.

■

Cutting or sharp bending the capillary will cause permanent
damage to the SWICHGAGE

■

Excess capillary should be carefully coiled and secured

away from damage.

■

Do not route capillary along exhaust manifold.

■

Avoid routing capillary at level higher than gage mounting.

®

and will void the warranty.

Dial: White on black, dual scale, °F and °C standard,
4-1/2 in. (114 mm) diameter.

Case: Die cast aluminum, surface or panel mount.
Capillary: PVC armored copper tube, 5 ft. (1.5 m) long standard.
Sensing Bulb: Copper bulb std.: 1/2 in. (13 mm) OD;

Length 7 in. (178 mm). Pressure rating: 600 psi (4.1 MPa)
[41 bar]. Connection: 1/2 NPTM compression fitting.
NOTE: Use of thermowell is highly recommended.

Switch Reset Deadband: Approximately 10% FS.
Snap-Acting Switches: See wiring information (page 4).
Dry Relay Contact (“BP” Models): 10 A @ 28 VDC or

10 A @ 120 VAC.

Wire Connections (Surface Mount): 1/2 NPTF conduit/terminal block.
Wire Connections (Panel Mount): Wire leads, 18 AWG

(1.0 mm2) x 9 in. (229 mm) long.
Wire Connections (-ES, -OS, -CC): 1/2 NPTM conduit and wire leads,
24 AWG (0.22 mm2) x 33 in. (838 mm) long.

Overrange: Do not exceed 10% FS above full range.
Item Weight: 8 lbs (3.6 kg) approx. Explosion-proof models: 22 lb.

(10 kg) approx.
Item Dimensions: 16 x 11 x 5-1/2 in. (406 x 279 x 140 mm)
approximately. Explosion-proof: 12 x 12 x 9 in. (305 x 305 x 229 mm)
approximately.

Accuracy

*

Selected configurations are CSA approved. Consult factory for details.

**

Products covered by this literature comply with EMC Council directive 89/336/EEC
regarding electromagnetic compatibility as noted. Does not cover “BP” models.

Temperature Range Lower

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

(54 to 177°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)

1

/

4 Middle

®

**

1

/

2 Upper

1

/

4

SPL-92106N page 2 of 4

panel

gage

shock mount

DETAIL

1/4-20 nut & lockwasher

(2 each required)

8-7/16 in.
(214 mm)

3-3/8 in.
(86 mm)

7-7/8 in.

(200 mm)

3-15/16 in.

(100 mm)

4-1/32in.

(102 mm)

9/32 in.

(7 mm) dia.

3 holes

1/2 in.

(13 mm)

conduit

120

120

120

panel

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.,120 apart,
clocking as shown

Mounting Hole

4-3/4 in.

(121 mm)

diameter

Optional

1/2 in.

(13 mm)

conduit

8 in.

(203 mm)

6-25/64 in.

(162 mm)

8 in.

(203 mm)

3/8-16 UNC-2B

thread

7/8 in. (22 mm)

deep, 8 plc's

6-3/4 in.

(171 mm)

6-3/4 in.

(171 mm)

13/32 in.
(10 mm)
diameter
4 places

7-35/64 in.

(192 mm)

diameter

3-3/8 in.
(86 mm)

3-3/8 in.
(86 mm)

*Mounting hole

not required for

Wall mount

1/2 in.NPT

optional

rear or side

conduit

5-7/16 in.
(138 mm)

2-23/32 in.

(69 mm)

6-3/4 in.

(171 mm)

2-57/64 in.

(73 mm)

1/2 in.
(13 mm)
conduit

Optional
Back
Connection

CASE MOUNTING

Wall Mount

Flanged case design intended for wall mount. Shown with shock
mounts (optional).

Flush Mount

A round case design to be mounted within a panel from
(1 mm) to

Options -OS, -ES (flush mount case)

1

/8in. (3 mm) thick.

1

/32in.

Explosion-proof Case Mount

Explosion-proof case can be mounted from face or rear.

Flush mount/Wall mount

*

SPL-92106N page 3 of 4

100

0

500

800

6 in.

(152 mm)

transmitting
tube or
capillary

Sensing
bulb
insertion

compression
nut

active

section of

sensing bulb

Wall

SWICHGAGE

®

Adapter

SENSING BULB-THERMOWELL INSTALLATION

E

A

B

C

D

B

A

D

C

Turn to lower
pointer

Turn to raise
pointer

DETAIL “A”

Turn to
lower pointer

DETAIL “B”

Turn to raise
pointer

Precautions

Cutting or sharp bending the capillary will cause permanent damage
to the SWICHGAGE

®

and will void the warranty. Excess capillary
should be carefully coiled and secured away from damage. Do not
route capillary along exhaust manifold. Avoid routing capillary at a
level higher than gage mounting.

Installing Sensing Bulb

1. Install the 1/2NPT adapter into the

application.

2. Slip compression nut and ferrule

onto bulb.

3. Insert the sensing bulb directly

through the adapter and fully
immerse it into the process without
interference. Be sure to leave enough of
the bulb to allow the compression nut and
ferrule to be tightened.

4. Keep the bulbs active section in the middle of the process flow.

5. Tighten the compression nut and ferrule. This will keep the

bulb in place and obtain a full seal.

LIMIT CONTACTS / INDICATION POINTER ADJUSTMENTS

Limit Contact Adjustments

Facing the dial, left side knob is “Low limit” contact. Right side is
“High limit” contact.

NOTE: the 45TE Series features a stacked
limit indicator knob with both limit adjust­ments included. The bottom half knob
adjusts the “Low” limit indicator, the top
half is to adjust the “High” limit indicator.

A. Contact arm-flex
B. Contact arm
C. Pointer Contact
D. Initial point of contact
E. Limit contact knob

Indication Pointer Adjustments

To reset to zero or to a known value proceed
as follows:

To set limit contact, turn the knob to the
desired point on the scale.

Limit Contact
Wiping Feature (SPL)

The force of pointer causes the
flexible contact arm (A) to “tilt”
resulting in a wiping action (D).
This clears away film or
corrosion formed on the
contact surfaces

.

OPERATION TEST INSTRUCTIONS

NOTE: Span adjustments and recalibration
must be performed by an authorized
mechanic or return the unit to Frank W.
Murphy Mfr

Installing Thermowell

Thermowell is recommended for high
pressure applications or corrosive
environments. It also allows tempera­ture sensor to be changed or adjusted
without opening connection to process.

1. First screw the thermowell into the

process (pipe line).

2. Pass the sensing bulb through the

nut and ferrule.

3. Fully insert the sensing bulb into the

thermowell housing and secure it
with the compression nut.

NOTE: The use of temperature trans­mitter grease or silicon grease on the
tip of the sensing bulb is recommended
to facilitate heat transfer to sensing
bulb junction.

1. Turn off power. Remove the snap

ring and the lens/contact assembly

(or open hinged cover).

2. Hold the pointer hub with thumb

and forefinger then turn screw to
desired point. Avoid touching the gold
flashed, silver contact areas.
See DETAIL “A”.

For the 45TE Series see DETAIL“B”.

3. Replace lens contact assembly and

snap ring (or close hinged cover),
and turn on power.

.

SPLC and SPLFC Series

1. Perform operation test after the unit is installed and wired appro-

priately (see Typical Electrical Diagrams on page 4).

2. When temperature is applied to the sensing bulb the pointer will trav-

el in a clockwise direction. (Adjust contacts to desired set points.)

3. Place the toggle switch (SPLC Series only) in the “start”position

or otherwise override low contact. After the indication pointer
rises past the low limit contact, return the toggle switch to the
“run”position.

4. To test the limit contacts, turn the limit contact to be tested until it

touches the pointer. That will trip the control circuit.

5. Reset the shutdown or alarm circuit device.

45TE Series

1. Perform steps 1 and 2 in the SPLC Operation Test Instructions.

2. To test the switches, turn the limit indicator until it touches the

pointer, then continue to rotate until the snap-switch operates*.

3. Reset the shutdown or alarm circuit device.

*

The trip point indicator will stop the pointer movement slightly

before the snap-switch operates. As temperature continues to
increase or decrease, the trip point setting is reached

.

SPL-92106N page 4 of 4

TYPICAL ELECTRICAL DIAGRAMS

CONTROL SYSTEMS & SERVICES DIVISION

P.O. Box 1819; Rosenberg, Texas 77471; USA
[phone] fax [phone]

e-mail [e-mail]

MURPHY DE MEXICO, S.A. DE C.V.

Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje
San Luis Potosí, S.L.P.; México 78384
[phone] fax [phone]
Villahermosa Office [phone]
e-mail [e-mail]
www.murphymex.com.mx

FRANK W. MURPHY, LTD.

Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.
[phone] fax [phone]
e-mail [e-mail]
www.fwmurphy.co.uk

MURPHY SWITCH OF CALIFORNIA

41343 12th Street West
Palmdale, California 93551-1442; USA
[phone] fax [phone]
e-mail [e-mail]
www.murphyswitch.com

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.

MACQUARRIE CORPORATION

1620 Hume Highway
Campbellfield, Vic 3061; Australia
[phone] fax [phone]

e-mail [e-mail]

FW Murphy

P.O. Box 470248
Tulsa, Oklahoma 74147 USA
[phone]

fax [phone]
e-mail [e-mail]

www.fwmurphy.com

R

E

G

I

S

T

E

R

E

D

USA–ISO 9001:2000 FM 28221

UK–ISO 9001:2000 FM 29422

Printed in U.S.A.

WARNING: Perform the wiring operation with the power source “OFF”. Make sure the voltage and current
requirements are within the SWICHGAGE

®

ratings. Before wiring determine voltage and polarity for the
application. Use the appropriate wire size. All connections should be made using a spade (forked) or ring
terminals. For pigtail connections use wire nuts. Conduit is recommended to protect wires from damage.

SPLC and SPLFC

Contact Ratings:

1 S PDT, Center off; 2A , 30VDC, 1 A, 125 VAC pilot dut y.

NOTE: Diagrams below show the pointer in the at rest (shelf) position.

SPLC SPLFC

Start Up
Lock Out
Toggle
Switch

White

Black

Red White Black

Red

SPLBP

Contact Ratings: SPDT dry relay contacts; 10 A, 125 VAC.

NOTE: Diagrams below show the pointer in the at rest (shelf) position.

Yellow

3

Oran

ge

High
(Set)

5

Reset

Set

Common

= 18 GA.

= 16 GA.

Neutral

–

12 VDC
24 VDC

+

Line

Blue

4

1

120 VAC/24 VAC

2

7

9

White

AB

Black

Low

(Reset)

Red

1

4

3

Brown

6

8

6

Transformer Relay Assemblies

For higher voltages the Murphy TR Assemblies can be used in
conjunction with any SWICHGAGE

®

.

45TE and 45TEF

Contact Ratings: 2-SPDT snap-switches (One for high and low
temperature); 2 A inductive, 250 VAC each switch.

NOTE: Diagram below show the pointer in the at rest (shelf) position.

LOW SWITCH HIGH SWITCH

3

2

1

N.C.–Orange

N.O.–Blue

Common–Red

N.C.–Black

N.O.–Brown

Common–Yellow

6

5

4

45TEBP

Contact Ratings: SPDT dry relay contacts; 10 A, 125 VAC.

NOTE: Diagrams below show the pointer in the at r

Common

= 24 GA.

= 18 GA.

= 16 GA.

Neutral

–

12 VDC
24 VDC

Blue

4

1

120 VAC/24 VAC

7

9

White

AB

1

4

3

6

8

Low

est (shelf) position.

Yellow

Brown

ge

Oran

Blue

3

Reset

5

Set

6

Brown

(Reset)

+

Line

Red

2

Yellow

High
(Set)