WIKA TI.20 Data sheet
Mechanical
Temperature Measurement
Bimetal Thermometer - Industrial Grade - All Stainless Steel Construction
Type TI.20, 2” Dial Size - Back Connected
Datasheet TI.20
Applications
A wide range of applications including machine building,
vessels, micro-brewing, boilers and water systems/piping
Heating and air-conditioning technology (HVAC)
Temperature measurement in harsh and agressive
environments
Product features
Back connection with external reset
Robust industrial design
All stainless steel case construction
NSF approval available
Specications
Size
2” (50.8 mm) - Type TI.20
Accuracy
+ 1.0% full scale value per ASME B40.3 Grade A
Min./Max. Ranges
From -100 oF (-70 oC) to +1000 oF (+540 oC)
From -50 oC to +550 oC (as single scale)
Reference table on page 2
Working Range
Steady: full scale value
Short time: 110% of full scale value
Over/Under Range Protection
< +500 oF (+260 oC): Temporary up to 50% of full scale
> +500 oF (+260 oC): Continuous to 800 oF (+427 oC)
Intermittant up to 1000 oF (+538 oC)
Connection
Material: 304 stainless steel
Center back mount (CBM)
1/4” NPT
Stem
Material: 304 stainless steel
Diameter: ¼” (6.35 mm)
Length: 2½” to 24” (63.5 mm to 609.6 mm)
Measuring Element
Bi-metal helix
Thermometer TI.20
Case
Material: 304 stainless steel; hermetically sealed per ASME
B40.3 standard
Dial
White aluminum, dished, with black markings
Pointer
Black aluminum
Standard Scales
Single: Fahrenheit or Celsius
Dual: Fahrenheit (outer) and Celsius (inner)
Window
Flat instrument glass
Weight
5 oz. (142 g), 2” (50 mm) dial;
Add 1 oz. (28 g) for every 2” (50 mm) of stem length
Dampening
Inert gel to minimize pointer oscillation
Order Options (min. order may apply)
Special scales and dial markings; Acrylic windows
Calibration certication traceable to NIST
Warranty
Limited one year warranty as stated in WIKA’s Terms &
Conditions of Sale
Datasheet TI.20 · 6/2015
Page 1 of 2
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Dimensions
Standard versions
STANDARD RANGES
Fahrenheit
Single Scale
Dual Scale F & C
F Outer, C Inner
Celsius
Single Scale
-100/150 F -100/150 F & -70/70 C -50/50 C
-40/120 F 40/120 F & -40/50 C -20/120 C
0/140 F 0/140 F & -20/60 C 0/50 C
0/200 F 0/200 F & -15/90 C 0/100 C
0/250 F 0/250 F & -20/120 C 0/150 C
20/240 F 20/240 F & -5/115 C 0/200 C
25/125 F 25/125 F & -5/50 C
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0/250 C
50/300 F 50/300 F & 10/150 C 0/300 C
50/400 F 50/400 F & 10/200 C 0/450 C
50/550 F 50/500 F & 10/260 C 100/550 C
150/750 F 150/750 F & 65/400 C
200/1000 F1200/1000 F & 100/540 C
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Not recommended for continous service over 800°F (425°C)
1
1
1
Stem Length
2½” (63.5 mm)
4” (101.6 mm)
6” (152.4 mm)
9” (228.6 mm)
12” (304.8 mm)
15” (381.0 mm)
18” (457.2 mm)
24” (609.6 mm)
WIKA TYPE DIAL SIZE A B C S (STEM LENGTH)
20 2” (50.8 mm) 2-1/16” (52.4 mm) 7/16” (11.1 mm) 1/4” (6.4 mm) As Specied
Note: Thermowells for temperature instruments are recommended for all process systems where pressure, velocity, or viscous, abrasive and corrosive materials are present individually or in
combination. A properly selected thermowell protects the temperature instrument from possible damage resulting from these process variables. Furthermore, a thermowell permits removal of the
temperature instrument for replacement, repair or testing without eecting the process media or the system.
Ordering information
State computer part number (if available) /type number/size/range/connection size and locations/options required. WIKA reserves the right to make changes without prior notice.
Datasheet TI.20 · 6/2015Page 2 of 2
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WIKA Instrument Corporation
1000 Wiegand Boulevard
Lawrenceville, GA 30043
1-888-WIKA-USA /770-513-8200 (in GA)
Fax 770-338-5118
info@wika.com www.wika.com
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