RTD Temperature Sensor omnigrad T

RTD Temperature Sensor omnigrad T
Technical Information
TI 272T/02/en
60021665
RTD Temperature Sensor
omnigrad T -TR 470
RTD sensor with Pt 100, class A
Process connection threaded or with compression
fitting
Application
The Omnigrad T type TR 470 gauge is
used for measuring temperatures from
-50 to 200°C.
The typical applications are:
• tanks and pipes
• factory utilities
• HVAC
• machinery.
Features and benefits
• Small design
• M12 plug-in connector
• Various insertion lengths
• Optional: reduced gauge tip for quick
response times
• Completely made of stainless steel,
components in contact with the process in SS 316L
• Pt 100 accuracy class A
(DIN EN 60751)
omnigrad T -TR 470
Function and system design
Measuring principle
In the RTD (Resistance Temperature Detector) thermometers the sensing element consists of an
electrical resistance with value of 100 Ω at 0°C (called Pt 100, in compliance with standard DIN
EN 60751), which increases at higher temperatures according to a coefficient characteristic of the
resistor material (platinum). In industrial thermometers that comply with the DIN EN 60751
standard, the value of this coefficient is α = 3.85*10-3 °C-1, calculated between 0 and 100°C.
Input values
Measured variable
Temperature
Measuring range
-50...200°C
Output values
Output signal
Analogue, Ω
Supply
Electrical connection
Red
Red
4
3
1
2
ELECTR_g_gd_05_en_10
1 x Pt 100
White
White
Fig. 1:
Electrical connection of the sensor (viewed from above), M12 plug, 4-pin
Accuracy
Measuring error
2
• Class A tolerance as per DIN EN 60751, with operating temperature range of -50...200°C
• Measuring error in °C = 0.15 + 0.002 ⋅ ItI
ItI = numerical value of the temperature in °C, unsigned.
Endress+Hauser
omnigrad T -TR 470
Sensor response time
As per DIN EN 60751 in water flowing at 0.4 m/s:
Sensor tip
t50
t90
∅ 6 mm
≤ 3.0 s
≤ 8.0 s
∅ 4 mm
≤ 2.5 s
≤ 5.0 s
Installation conditions
Installation instructions
Mounting location
a
b
INSTAL_g_gd_07_xx_01
c
Fig. 2:
a
b
c
Pipe installation of the sensor
At angle sections, against the direction of flow
In smaller pipes, turned against the direction of flow
Perpendicular to the direction of flow, with a compression fitting
Environmental conditions
Ambient temperature -limits
90°C max for the M12 connector
Degree of protection
IP67
Shock resistance
4g / 2...150 Hz as per IEC 60068-2-6
Vibration resistance
See ’Shock resistance’
Condensation
Permitted
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3
omnigrad T -TR 470
Process
Process temperature limits
-50...200 °C
Process pressure limits
With a limited flow velocity, the maximum tolerated pressures are the following:
• 5 MPa (50 bar)
• 3.5 MPa (35 bar)
Flow velocity limits
at 20°C
at 200°C.
The highest flow velocity tolerated by the sensor stem diminishes with increasing lengths of the
probe exposed to the stream of fluid.
Mechanical construction
Design, dimensions
TR470_g_dd_07_en_01
0
Fig. 3:
Item 0: without process connection: Item A: with process connection
– L version in 50, 100, 150, 200 mm
– L* version in 100, 150, 200 mm
– L** version in 50 mm
Version A (with process connection) contents a sealing ring (Cu) in the scope of delivery.
Weight
L in mm
50
100
150
200
TR470-0
approx. 45 g
approx. 50 g
approx. 55 g
approx. 60 g
TR470-A
approx. 75 g
approx. 80 g
approx. 85 g
approx. 90 g
Material
Stainless steel; components in contact with the process fluid: SS 316L, Ra ≤ 0.8 µm.
Terminals
M12 plug-in connector (see Chap. Supply).
4
Endress+Hauser
omnigrad T -TR 470
Certificates and approvals
PED approval
The Pressure Equipment Directive (97/23/CE) is respected.
As paragraph 2.1 of article 1 is not applicable to these types of instruments, the CE mark is not
requested for the TR 470 destined for general use.
Other standards and
guidelines
EN 60529:
Degrees of protection by housing (IP-Code).
Further details
Maintenance
The Omnigrad M thermometers do not require any specific maintenance.
Delivery time
For small quantities (5÷10 units) and standard options, between 2 and 5 days depending on the
configuration required.
Endress+Hauser
5
omnigrad T -TR 470
Ordering information
Product structure
TR470-
TR 470 RTD Thermometer
Thermometer with M12 plug-in connector, and with optional threaded process connection.
Designed for general applications. Pt 100 4 wires; temperature range -50...200°C.
Process connection
0 No process connection
A G ½" process connection
Neck length L (material stainless steel)
1
25 mm neck length
Immersion length L
B
C
D
E
50 mm immersion length L
100 mm immersion length L
150 mm immersion length L
200 mm immersion length L
Probe diameter D and material
A
6 mm = D, SS 316L/1.4404
Tip design
S
R
Straight tip
Tapered/reduced tip
RTD type
3
1 Pt 100 TF class A
Housing
0
No housing
Terminal type
A
M12 male output connector
Additional options
TR470-
6
1
A
3 0
0
Additional options not required
A 0
⇐ Order code (complete)
Endress+Hauser
omnigrad T -TR 470
Accessories
Details/Material
ADJ470_g_dd_09_xx_03
Flange welding boss,
TSM470-A.
Seal, adjustable terminal
screw connection,
material of components
in contact with the
process: SS 316L.
Order code: 51004751
Dimensions in mm
ADJ470_g_dd_09_xx_02
Designation
Pos A: Clamping screw (stainless steel)
Pos B: Washer (stainless steel)
Pos C: Sealing cone (PEEK)
ATT470_g_dd_09_xx_02
Flange welding boss,
TSM470-B.
Material of components
in contact with the
process: SS 316L.
Order code: 51004752
ATT470_g_dd_09_xx_01
Pos D: Flange welding boss (316L)
Pos B: Washer (stainless steel)
Pos C: Sealing cone (PEEK)
ADJ470_g_dd_09_xx_01
Threaded compression
fitting, TSM470-A.
Seal, adjustable terminal
screw connection,
material of components
in contact with the
process: SS 316.
Order code: TA50-..
ADJ470_g_dd_09_xx_04
Pos D: Flange welding boss (316L)
Pos. 1: Clamping nut (stainless steel)
Pos. 2: Sealing cone (SS or PTFE)
Pos. 3: Thread socket (316)
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7
Supplementary documentation
❑ TA Fittings & Sockets - omnigrad TA50, TA55, TA60, TA70, TA75
❑ E+H Thermolab - Calibration certificates for industrial thermometers.
RTD and thermocouples.
TI 091T/02/en
TI 236T/02/en
Subject to modification
Endress+Hauser GmbH+Co.
Instruments International
P.O. Box 2222
D-79574 Weil am Rhein
Germany
Tel. (07621) 975-02
Tx 773926
Fax (07621) 975 345
e-mail: info@ii.endress.com
Internet:
http://www.endress.com
11.01
TI 272T/02/en/08.03
60021665
FM+SGML6.0
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