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DialTemp
™
Surface Thermometers
Dual Fahrenheit and Celsius Dials
Operating
Instructions
This unique,
handy little gage
is great for use
in sensing the
temperature
of almost any
surface. The
bi-metal sensing
element is exposed
to allow quick accurate
response to surface
temperature, but adequately
shielded from damage by a protective cover and heat
collector. For the most accurate reading this surface
thermometer should be used in still air. Place the gage
on the surface where you wish to know the temperature
dial face up with bimetal sensing element against
the surface. The magnets will allow placement in any
position on a ferrous surface. It can also be used on
any other material with a horizontal surface. Allow about
a minute for the sensing element to stabilize and then
read the temperature. Higher or lower air temperatures
surrounding the thermometer or a draft over the surface
may slightly affect the temperature indicated.
Some Typical Applications
Air ducts, boilers, cabinets, drums, engines, enclosures,
fire boxes, manifolds, platens, plumbing, piping,
refrigerators and many others.
Magnet.
Heated
surface.
Side view. Back view.
Protective
cover and
heat collector.
Magnet.
Specifications
Head Size: 5.08 cm (2")
Height: 1.27 cm (1
Weight: 56.7 g (2 oz) approximately
Dial: White background, blue marks and numbers
Case: Aluminum with optically clear crystal
Sensing Element: Precision calibrated bimetal coil
Accuracy: ±2% of full scale
Response Time: Approximately 1 minute
Mounting: 2 magnets on back
1
⁄2")
To Order
Model No. Range
SUR-15 -20 to 65°C (0 to 150°F)
SUR-25 -20 to 120°C (0 to 250°F)
SUR-50 -20 to 260°C (0 to 500°F)
SUR-75 10 to 400°C (50 to 750°F)
Bimetallic
sensing
element.
Accessories and Options
Mounting Threads and Bushings
1
⁄8 NPT – Models Q, G, H
1
⁄4 NPT – All models
1
⁄2 NPT – All models
3
⁄8 NPT – Models Q, G, H
3
⁄4 NPT Adaptor Bushing—Models
A, R, B, S, X, XR, V, VR, J
Hex Bushing: Models A, R, B, S
Other Threads on Special Order
Other Options
Pointed stems (for all models), add “-PS”
Pocket case/clip (for 5 or 6" stems only)
Unbreakable clear plastic crystals, add “-PC”
Pointer for min and max on 3" models, add “-NMP”
Pointer for min and max on 5" models, add “-NMPS”
Custom thermometers, dials, ranges, fixtures
Silicone filling—models A, R, add “-SF” up to 9"
*
Silicone filling—models B, S, add “-SF” up to 9"
*
Silicone filling—models X, XR, add “-SF” up to 9"
*
Silicone filling—models V, VR, and J, add “-SF” up to 9"
*
Over 9": additional cost per additional inch.
*
PFA coating: additional cost per additional inch.
Ordering Example: SUR-75, 10 to 400°C range.
External mounting brackets facilitate
surface mounting on cabinets,
ovens, coolers, flat surfaces.
External
Mounting
Brackets for
Models
G and H
E-15
Model C-10
&
Model T-27
Clip Hanger and Spring
Handle—All Models
The C-10 Clip Hanger and T-27
Spring Handles are used on the
rims of tanks, kettles, urns, solder
pots, beakers or other containers.
The Spring Handle can be hand
held allowing thermometer insertion
in hot or corrosive materials without
exposure of the hand. Very handy
items. Available from stock.
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