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Technical Datasheet
TD 00017E/24/EN/01.13
• Class A sensor
• Fiberglass insulated inset
• Ø 6 mm (Ø 0.24”) protecting tube
Complete product information:
www.e-direct.us/tst487
Specs at a glance:
• Temperature range:
-50 to +300 °C
• Tolerance: Pt100 Class A
• Immersion length (diameter):
50 / 100 / 150 / 250 mm
(Ø 6 mm)
2” / 3.9” / 5.9” / 9.8” (Ø 0.24”)
• Response time:
≤ 3.5 s (T50), ≤ 8 s (T90)
RTD thermometer with screw thread for simple applications
Omnigrad T TST487
$ 83.00

2. Omnigrad T TST487 2
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Application / Function
Application The Omnigrad T TST487
is a general purpose RTD thermometer
particularly suited to many light and
medium duty applications either in
vessels or pipes. It can be applied
where pressure and temperature are
not extreme and where the
performance/cost ratio is very
important.
Function The Omnigrad T TST487
RTD thermometer assembly includes a
single Pt100 insulated probe and a
terminal head. The process connection
is threaded G ½”.
The inset is available either with
flying leads for head transmitter
mounting or with terminal block.
Installation instructions
Pipe installation:
a) At elbows, against the flow
b) In smaller pipes, leant against
the flow
c) Perpendicular to the flow
a) b)
c)

3. Omnigrad T TST487 3
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DimensionsTechnical data
Technical data Dimensions (in inches)
Sensor
Sensing element Platinum resistance, 1×Pt100 (100 Ω at 0
°C)
Tolerance Class A acc. to IEC 751: -50 to +250 °C
Class B acc. to IEC 751: 250 to 300°C
Wiring Four-wire connection, fiberglass insulated
cable
Insulation resistance ≥ 100 MΩ, test voltage 250 V at ambient
temperature
Electrical connection Flying leads or terminal block
Sheath diameter 6 mm (0.24)
Operating
temperature
-50 to +300 °C (-58 to +572 °F)
Sheath SS 316L/1.440 4
Response time T50/3.5 s; T90/8 s; according to IEC 751, in
moving water at 0.4 m/s
Ambient temperature -40 to +100 °C (-40 to +212 °F)
Process connection
Material SS 316Ti/1.4571
Connection G ½
Terminal head
Type DIN 43 729 form B
Protection class IP 66/68
Electrical connection M20×1.5, cable gland
Material Aluminum, polyester powder coated
L
4.23
2.76
1.1
3.2
0.6
Ø 0.24
G ½
welded
L = Immersion length
Installation according to operation instructions
Tolerance values
2.5
400
Class B (ºC)
Class A (ºC)
ºC
Ω
350300250200150100500-50-100-150-200
2.0
1.5
1.0
0.5

4. Omnigrad T TST487 4
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More products to complete your measuring point …
Electrical connection
red
white
white
red
Terminal block
For direct cable connection
red
red
white
Pt100
white
For mounting of head transmitter
Flying leads Omnigrad T TST487 Order no. Price/pcs. in USD
Terminal Type Immersion Length L 1 to 5 6 to 10 11 to 35
Flying leads 50 mm (2) TST487-1A2A 94.00 87.00 83.00
100 mm (3.9) TST487-1A2B 94.00 87.00 83.00
150 mm (5.9) TST487-1A2C 98.00 91.00 86.00
250 mm (9.8) TST487-1A2D 100.00 93.00 88.00
Terminal block 50 mm (2) TST487-1A3A 106.00 98.00 93.00
100 mm (3.9) TST487-1A3B 106.00 98.00 93.00
150 mm (5.9) TST487-1A3C 110.00 102.00 96.00
250 mm (9.8) TST487-1A3D 112.00 104.00 98.00
Prices valid until 09.30.2013 in U.S. dollars per unit (not including shipping and applicable sales tax).
See Endress+Hauser, Inc. Terms and Conditions of Sale for shipping, tax, and payment terms.
Complete product information:
www.e-direct.us/tst487
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Contact
E-direct
Endress+Hauser, Inc.
2350 Endress Place
Greenwood, IN 46143
Direct order
Internet www.e-direct.us
by phone 888-EH-DIRECT
(343-4732)
per Fax 317-535-8498
E-Mail e-direct@us.endress.com