Bimetal Thermometer Stainless Steel & Wetted Parts

Type TI.31 - Process Grade Resettable

Applications

• Suitable for medium which does not corrode 304 stainless steel

Special Features

• Process Grade design, 7 year material / workmanship warranty
• Lower (bottom) connection with external reset
• Stainless steel case and wetted parts
• NEMA 4X / IP 65 Weatherproof   

Standard version
Size
3” (76.2 mm) Type TI.31

Accuracy
+ 1.0% full scale value (ASME B40.3)

Ranges
-100 oF to 1000 oF (and equivalent Celsius)

Working Range
Steady: full scale value
Short time: 110% of full scale value

Over Range
Temporary over or under range tolerance of 50% of scale
up to 500 oF(260°C). For ranges above 500°F, maximum
over range is 800°F; continous. 1000°F intermittent.

Connection
Material: 304 stainless steel
Lower mount (LM), 1/2” NPT

Stem
Material: 304 stainless steel
Diameter: 1/4” (6.35 mm)
Length: 2½” to 72” (63.5 mm to 1,828.8 mm)

Measuring Element
Bi-metal helix
WIKA Datasheet TI.31 · 8/2009 Page 1 of 2

Case
Material: 304 stainless steel
Hermetically sealed per ASME B40.3 standard
Ingress protection IP 65
External reset slotted hex head on back of case

Dial
White aluminum, dished, with black markings

Pointer
Black aluminum

Standard Scales
Single: Fahrenheit or Celsius
Dual: Fahrenheit (outer) and Celsius (inner)

Window Gasket
Neoprene
Silicone (-100 oF and over 550 oF)

Dampening
Inert gel to minimize pointer oscillation

Window
Flat instrument glass

Weight
11 oz. (3” dial)
Add 1 oz for every 2” of stem length

Movement
Viscous inert gel to enhance pointer operation