Surface Mount Models* | Dimensions | Panel Mount Models |
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(102 mm) |
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(86 mm)
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(138 mm) |
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1/2 in. (13 mm) conduit
120
120
120
(200 mm)
9/32 in.
(7 mm) dia. 3 places
Mounting Hole
(121 mm) diameter.
Sensing Bulb
7 in.
1/4 in. (6 mm) dia. holes (3 places.) on
120
apart, clocking as shown
1/2 NPT
Optional
1/2 NPT
conduit
connector 
(std. with
*SPLCE, SPLBPE, 45TEE and 45TEBPE versions feature square case, but altered to fit standard round panel
(178 mm)
Bulb Minimum Insertion Compression Nut
Ranges and Accuracy — Sensing Bulb Insertion
| Temperature Ranges Available (dual scale dials) |
| Accuracy (SPL and 45 Series Models) |
| Minimum Sensing Bulb |
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| Fahrenheit | Celsius |
| Lower 1/4 | Middle 1/2 | Upper 1/4 |
| Insertion into Process |
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| 15° to 250°F | 9° to 121°C |
| ±8°F/±4°C | ±2°F/±1°C | ±2°F/±1°C |
| 5 in. (127 mm) | |
| 130° to 350°F | 60° to 180°C |
| ±8°F/±4°C | ±2°F/±1°C | ±3°F/±1.5°C |
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| 260° to 450°F | 127° to 232°C |
| ±8°F/±4°C | ±2°F/±1°C | ±3°F/±1.5°C |
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Using a Thermowell
Start-Up Lockout
Installing a thermowell is rec- ommended for high pressure applications or corrosive envi- ronments. It also allows sens- ing bulbs to be changed or adjusted without opening the connection to process. Murphy offer thermowells for a variety of applications.
For details see Murphy bulletin
Capillary
Tube
Application
Sensing Bulb
Active Section
Thermowell 
into the Process
The SPLC SWICHGAGE® low limit contact can be bypassed for equipment start up. A toggle switch is provided for this purpose. The toggle switch must be manually reset when temperature rises above the low limit.
SPLC Series
RUN
Start Up Lockout |
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Toggle Switch | START |
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| 250 | 270 | 290 |
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| 220 |
| 300 |
SPLC |
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TEMPERATURE |
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| 200 |
| 320 |
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| MURPHY |
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| 170 | SWICHGAGE® | 340 |
| TULSA, U.S.A. | ||
| °C |
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| °F |
| 350 |
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Toggle |
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switch |
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| Low Limit |
Red White Black | Contact |
