TR31-3

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WIKA · Temperature measurement · Family TR31

OEM miniature resistance thermometer

Name: OEM miniature resistance thermometer
Brand: WIKA

OEM miniature resistance thermometer with M12 x 1 connector

Range

-50…250 °C

Output

4-20mA · HART

Accuracy

±0.25 K

Protection

IP67

CERoHSEACCCCNEPSIREACHII 1G Ex ia IIC T1 - T6 GaII 1/2G Ex ia IIC T1 - T6 Ga/GbII 2G Ex ia IIC T1 - T6 GbII 1D Ex ia IIIC T135 °C DaII 1/2D Ex ia IIIC T135 °C Da/DbII 2D Ex ia IIIC T135 °C DbEx ia IIC T1 ... T6 GaEx ib IIC T1 ... T6 GbEx ia IIIC T135 °C DaEx ia IIIC T135 °C Db

Price

On request

Depends on configuration

Request a quote

+38 (067) 285-77-70·info@avigan.com.uaViberTelegram

Description

Resistance thermometers of these series are used as universal thermometers for the measurement of liquid and gaseous media in the range -50 ... +250 °C [-58 ... +482 °F]. For use in hazardous areas, intrinsically safe versions are available. They can be used for pressures up to 140 bar [2,030 psi] with 3 mm [0.12 in] sensor diameters and up to 270 bar [3,916 psi] with 6 mm [0.24 in] sensor diameters, depending on the instrument version. All electrical components are protected against humidity (IP67 or IP69K) and designed to withstand vibration (20 g, depending on instrument version).

The resistance thermometer is available with direct sensor output or integrated transmitter, which can be configured individually via the WIKAsoft-TT PC configuration software. Measuring range, damping, error signalling per NAMUR NE 043 and TAG no. can be adjusted.

Insertion length, process connection, sensor and connection method can each be selected for the respective application within the ordering information. The model TR31 resistance thermometer consists of a thermowell/protection tube with

For further approvals, see page 8

Fig. left: Resistance thermometer with M12 x 1, model TR31-3

Fig. centre: Resistance thermometer with directly connected cable, model TR31-K

Fig. right: M12 x 1 adapter to DIN EN 175301-803 angular connector

Special features

Very compact design, high vibration resistance and fast response time
With direct sensor output (Pt100, Pt1000 in 2-, 3- or 4-wire connection) or integrated transmitter with 4 ... 20 mA output signal
Integrated transmitter is individually parameterisable with free-of-charge WIKAsoft-TT PC configuration software
Sensor element with accuracy class A per IEC 60751

Identification

Model	TR31-3
Product family	TR31
Subcategory	Resistance thermometer with integrated transmitter

Measuring range

Temperature ranges

−50…+250 °C · −30…+150 °C · −30…+250 °C · −20…+125 °C · −50…+150 °C

Accuracy

Accuracy class

±0.25 K

Process conditions

Process connection	M12 x 1.5M20 x 1.57/16-20 UNF-2AG ¼ BG ⅜ BG ½ B¼ NPT½ NPT
Process temperature	−50…+250 °C

Electrical characteristics

Output signal	4-20mA · HART
Power supply	DC 10 ... 30 V
Electrical connection	M12 x 1 circular connector (4-pin)

Materials

Probe material	Stainless steel 1.4571, 1.4571
Thermowell material	Stainless steel 1.4571, 1.4571

Operating environment

Ambient temperature	−40…+85 °C
IP rating	IP67
Weight	0.2 kg

Certifications and approvals

Certifications

CERoHSEACCCCNEPSIREACH

Explosion protection

II 1G Ex ia IIC T1 - T6 GaII 1/2G Ex ia IIC T1 - T6 Ga/GbII 2G Ex ia IIC T1 - T6 GbII 1D Ex ia IIIC T135 °C DaII 1/2D Ex ia IIIC T135 °C Da/DbII 2D Ex ia IIIC T135 °C DbCL I, DIV 1, GP A, B, C, D, T1 ... T6CL I, DIV 2, GP A, B, C, D, T1 ... T6CL II / III, DIV 1, GP E, F, G, T1 ... T6CL II / III, DIV 2, GP E, F, G, 135 °CEx ia IIC T1 ... T6 GaEx ib IIC T1 ... T6 GbEx ia IIIC T135 °C DaEx ia IIIC T135 °C Db

Additional details

Sensor type	Pt100
Sensor class	A
Probe length	50 mm
Probe diameter	3 mm
Thermowell	Yes
Datasheet languages	EN, DE

Tables from datasheet

Measuring element

Type of measuring element
Version 4 ... 20 mA(modelTR31-x-x-TT)	Pt1000 (measuring current < 0.3 mA;self-heating can be ignored)
Version Pt100 (model TR31-x-x-Px) / Pt1000 (model TR31-x-x-Sx)	■ Pt100 (measuring current: 0.1 ... 1.0 mA) ■ Pt1000 (measuring current: 0.1 ... 0.3 mA)
→	For detailed specifications for Pt sensors, see Technical information IN 00.17 at www.wika.com.
Connection method
Version 4 ... 20 mA(modelTR31-x-x-TT)	2-wire
Version Pt100 (model TR31-x-x-Px) / Pt1000 (model TR31-x-x-Sx)	2-wire	The lead resistance is recorded as an error in the measurement
3-wire	With a cable length of 30 m[98.4 ft] or longer, measuring deviations can occur
4-wire	The lead resistance can be ignored
Tolerance value of the measuring element 1) per IEC 60751
Version 4 ... 20 mA(modelTR31-x-x-TT)	Class A
Version Pt100 (model TR31-x-x-Px) / Pt1000 (model TR31-x-x-Sx)	■ Class A ■ Class B at	2-wire

Accuracy specifications (4 ... 20 mA version)

Tolerance value of the measuring element 1) per IEC 60751	Class A
Measuring deviation of the transmitter per IEC 62828	±0.25 K
Total measuring deviation per IEC 62828	Measuring deviation of the measuring element and transmitter
Influence of ambient temperature	0.1 %of the set measuring span / 10 KT a
Influence of supply voltage	±0.025 %/V(depending on the supply voltage U B )
Influence of load	±0.05 %/ 100Ω
Linearisation	Linear to temperature per IEC 60751
Output error	±0.1% 2)
Reference conditions
Ambient temperatureT a ref	23 °C
Supply voltage U B ref	DC 12V

Measuring range

Temperature range
Version 4 ... 20 mA(modelTR31-x-x-TT)	■ Without neck tube -30 ...+150 °C [-22 ...+302 °F] ■ With neck tube -30 ...+250 °C [-22 ...+482 °F] 1) 2) ■ Version with FKM O-ring: -20 ...+125 °C [-4 ...+257 °F]
Version Pt100 (model TR31-x-x-Px) / Pt1000 (model TR31-x-x-Sx)	Class A	■ Without neck tube -30 ...+150 °C [-22 ...+302 °F] ■ With neck tube -30 ...+250 °C [-22 ...+482 °F] 2) ■ Version with FKM O-ring: -20 ...+125 °C [-4 ...+257 °F]
	Class B	■ Without neck tube -50 ...+150 °C [-58 ...+302 °F] ■ With neck tube -50 ...+250 °C [-58 ...+482 °F] 2)
Unit (4 ... 20 mA version)	Configurable °C, °F, K
Temperature at the connector (Pt100, Pt1000 version)	Max. 85 °C [185 °F]
Measuring span (4 ... 20 mA version)	Minimum 20 K, maximum 300 K

Process connection
Type of process connection	■ G¼B ■ G⅜B ■ G½B ■ ¼NPT ■ ½NPT ■ M12 x 1.5 ■ M20 x 1.5 ■ 7/16-20 UNF-2A
Protection tube
Protection tube diameter	■ 3 mm[0.12 in] ■ 6 mm[0.24 in]
Insertion length U 1	■ 50 mm[1.97 in] ■ 75 mm[2.95 in] 1) ■ 100 mm[3.94 in] 1) ■ 120 mm[4.72 in] 1) ■ 150 mm[5.91 in] 1) ■ 200 mm[7.87 in] 1) ■ 250 mm[9.84 in] 1) ■ 300 mm[11.81 in] 1) ■ 350 mm[13.78 in] 1) ■ 400 mm[15.75 in] 1) Other insertion lengths on
request
Material (wetted)	Stainless steel 1.4571

View all (20)

Output signal (4 ... 20 mA version)
Analogue output	4 ... 20 mA, 2-wire
Load R A	R A ≤ (U B - 10 V) / 23 mAwith R A in Ωand U B inV The permissible load depends on the loop supply voltage. For communication with the instrument, with programming unit PU-548, a max. load of 350 Ωis admissible.
Load diagram	Not for instruments with Ex version Load R A inΩ 0 10 24 30 36 1083 833 583
Factory configuration	Voltage U B inV
Measuring range	0 ... 150 °C [32 ... 302 °F] Other measuring ranges are adjustable
Current values for error signalling	Configurable in accordance with NAMUR NE 043 downscale ≤ 3.6mA upscale ≥ 21.0mA
Current value for sensor short-circuit	Not configurable in accordance with NAMUR NE 043 downscale ≤ 3.6mA
Communication
Info data	TAG no., description and user message can be stored in transmitter
Configuration and calibration data	Permanently stored
Configuration software	WIKAsoft-TT → Configuration software (multilingual) as a download from www.wika.com
Voltage supply
Supply voltage U B	DC 10 ...30V
Supply voltage input	Protected against reverse polarity
Permissible residual ripple of supply voltage	10 %generated by U B < 3 %ripple of the output current
Time response
Switch-on delay, electrical	Max. 4 s (time before the first measured value)
Warm-up time	After approx. 4 minutes, the instrument will function to the specifications (accuracy) given in the data sheet.

Pin	Signal	Description
1	L+	10 ...30V
2	VQ	not connected
3	L-	0V
4	C	not connected

Pin	Signal	Description
Brown	L+	10 ...30V
Blue	L-	0V

Operating conditions
Ambient temperature range
M12 x 1 circular connector (model TR31-3-x-xx)	4 ... 20 mAversion	■ -40 ...+85 °C [-40 ...+185 °F] ■ Version with FKM O-ring: -20 °C [-4 °F]
	Pt100 / Pt1000 version	■ -50 ...+85 °C [-58 ...+185 °F] ■ Version with FKM O-ring: -20 °C [-4 °F]
Directly connected cable (model TR31-K-x-xx)	-20 ...+80 °C [-4 ...+176 °F]
Storage temperature range
M12 x 1 circular connector (model TR31-3-x-xx)	■ -40 ...+85 °C [-40 ...+185 °F] ■ Version with FKM O-ring: -20 °C [-4 °F]
Directly connected cable (model TR31-K-x-xx)	-20 ...+80 °C [-4 ...+176 °F]
Climate class per IEC 60654-1
M12 x 1 circular connector (model TR31-3-x-xx)	4 ... 20 mAversion	■ Cx (-40 ...+85 °C [-40 ...+185 °F], 5 ... 95 %r.h.) ■ Version with FKM O-ring: -20 °C [-4 °F]
	Pt100 / Pt1000 version	■ Cx (-50 ...+85 °C [-58 ...+185 °F], 5 ... 95 %r.h.) ■ Version with FKM O-ring: -20 °C [-4 °F]
Directly connected cable (model TR31-K-x-xx)	Cx (-20 ...+80 °C [-4 ...+176 °F], 5 ... 95 %r.h.) Version with FKM O-ring: -20 °C [-4 °F]
Maximum operating pressure 1) 2)
For protection tube diameter 3 mm[0.12 in]	140 bar [2,030 psi]
For protection tube diameter 6 mm[0.24 in]	270 bar [3,916 psi]
Salt mist	IEC 60068-2-11
Vibration resistance per IEC 60751	10 ... 2,000 Hz, 20 g 1)
Shock resistance per IEC 60068-2-27	50 g, 6 ms, 3 axes, 3 directions, three times per direction
Conditions for outdoor use (only applies to UL approval)	■ The instrument is suitable for applications with pollution degree 3. ■ The power supply must be suitable for operation above 2,000 mshould the temperature transmitter be used at this altitude. ■ The instrument shall be installed in locations sheltered from the weather. ■ The instrument shall be installed sun/UV irradiation protected.
Material	Stainless steel
Ingress protection (IP code)
Case with connected connector or directly connected cable 3)	■ IP67 per IEC/EN 60529 ■ IP69 per IEC/EN 60529 ■ IP69K per ISO 20653
Coupler connector, not connected	IP67 per IEC/EN 60529
Weight	Approx. 0.2 ... 0.7 kg [0.44 ... 1.54 lbs] - depending on version

Hazardous gas atmosphere	Temperature class	Ambient temperature range (T a )	Maximum surface temperature (T max ) at the tip of the probe or protection tube
II 1G Ex ia IIC T1 - T6 Ga II 1/2G Ex ia IIC T1 - T6 Ga/Gb II 2G Ex ia IIC T1 - T6 Gb	T6	-40 ...+45 °C	T M (medium temperature) + self-heating (15 K)
T5	-40 ...+60 °C	Pay attention to the special conditions for safe use.
T4	-40 ...+85 °C
T3	-40 ...+85 °C
T2	-40 ...+85 °C
T1	-40 ...+85 °C

Hazardous dust/air atmospheres	Power P i	Ambient temperature range (T a )	Maximum surface temperature (T max ) at the tip of the probe or protection tube
II 1D Ex ia IIIC T135 °C Da II 1/2D Ex ia IIIC T135 °C Da/Db II 2D Ex ia IIIC T135 °C Db	750mW 650mW 550mW	-40 ...+40 °C -40 ...+70 °C -40 ...+85 °C	T M (medium temperature) + self-heating (15 K) Pay attention to the special conditions for safe use.

Parameters	Hazardous gas atmosphere	Hazardous dust/air atmospheres
Terminals	+ / -	+ / -
Voltage U i	DC 30V	DC 30V
Current l i	120mA	120mA
Power P i	800mW	750/650/550mW
Effective internal capacitance C i	29.7 nF	29.7 nF
Effective internal inductance L i	Negligible	Negligible
Maximum self-heating at the probe or protection tube tip	15 K	15 K

Marking	Temperature class	Ambient temperature range (T a )	Maximum surface temperature (T max ) at the tip of the probe or protection tube
II 1G Ex ia IIC T1 - T6 Ga II 1/2G Ex ia IIC T1 - T6 Ga/Gb II 2G Ex ia IIC T1 - T6 Gb	T6	-50 ...+80 °C -50 ...+85 °C	T M (medium temperature) + self-heating Pay attention to the special conditions for safe use.
T5
T4	-50 ...+85 °C
T3	-50 ...+85 °C
T2	-50 ...+85 °C
T1	-50 ...+85 °C

Marking	Power P i	Ambient temperature range (T a )	Maximum surface temperature (T max ) at the tip of the probe or protection tube
II 1D Ex ia IIICT135 °C Da II 1/2D Ex ia IIICT135 °C Da/Db II 2D Ex ia IIICT135 °C Db	750mW 650mW 550mW	-50 ...+40 °C -50 ...+70 °C -50 ...+85 °C	T M (medium temperature) + self-heating Pay attention to the special conditions for safe use.

Parameters	Gas applications	Dust applications
Terminals	1 - 4	1 - 4
Voltage U i	DC 30V	DC 30V
Current l i	550mA	250mA
Power P i	1,500mW	750/650/550mW
Effective internal capacitance C i	Negligible	Negligible
Effective internal inductance L i	Negligible	Negligible
Maximum self-heating at the probe or protection tube tip	(R th ) = 335 K/W	(R th ) = 335 K/W

Description	Region
EU declaration of conformity	European Union
EMCdirective 1) 2) EN 61326 emission (group 1, class B) and immunity (industrial application) Configuration at 20 %of the full measuring range

Logo	Description		Region
	EU declaration of conformity ATEX directive Hazardous areas	European Union
	IECEx - in combination with ATEX Hazardous areas	International
	- Ex i Zone 0 Zone 1 Zone 1 Zone 20 Zone 21 Zone 21	Ex ia IIC T1 ...T6 Ga gas Ex ia IIC T1 ...T6 Ga/Gb Ex ia IIC T1 ...T6 Gb Ex ia IIIC T135 °C Da dust Ex ia IIIC T135 °C Da/Db Ex ia IIIC T135 °C Db

Description			Region
CSA	USA and Canada
Safety (e.g. electr. safety, overpressure, ...)
Hazardous areas - Ex i (for Canada)	Division 1 gas Division 2 gas Division 1 dust	CL I, DIV 1, GP A, B, C, D, T1 ...T6 CL I, DIV 2, GP A, B, C, D, T1 ...T6 CL II / III, DIV 1, GP E, F, G, T1 ...T6
UL (only for instrument version without explosion protection)	USA and Canada
Safety (e.g. electr.	safety, overpressure,
EAC EMCdirective 1) Hazardous areas - Ex i Zone 0 gas Zone 1 gas 1 Ex ia IICT6…T1 Gb X Zone 20 dust Ex ia IIIC T135 °C Da X Zone 21 dust Ex ia IIIC T135 °C Db X Ukraine areas	Ex ia IICT6…T1 Ga X	Eurasian Economic Community
Ex Hazardous Ex i Zone 0 gas II 1G Ex ia IIC T1 ...T6 Ga Zone 1 mounting to zone 0 gas II 1/2G Ex ia IIC T1 ...T6 Ga/Gb	Ukraine
INMETRO
Hazardous areas Ex i Zone 0 gas Ex ia IIC T6 ...T1 Ga Zone 1 mounting to zone 0 gas Ex ia IIC T6 ...T1 Ga/Gb Zone 1 Ex ia IIC T6 ...T1 Gb Zone 20 dust Ex ia IIIC T135°C Da Zone 21 mounting to zone 20 dust Ex ia IIIC T135°C Da/Db Zone 21 Ex ia IIIC T135°C Db 2) areas Ex i Zone 0 gas Ex ia IIC T1 ...T6 Ga Zone 1 mounting to zone 0 gas Ex ia IIC T1 ...T6 Ga/Gb	Brasilien
CCC Hazardous - Zone 1 gas Ex ia IIC T1 ...T6 Gb Zone 20 dust Ex ia IIICT 135°C Da	China
NEPSI 1) Explosionsgefährdete Bereiche Ex i Zone 0 gas Ex ia IIC T1 ∼ T6 Ga
			China

Logo	Description	Region
	PAC Kazakhstan Metrology, measurement technology	Kazakhstan
-	MChS Permission for commissioning	Kazakhstan
-	PAC Ukraine Metrology, measurement technology	Ukraine
	PAC Uzbekistan Metrology, measurement technology	Uzbekistan

Certification type	Measurement accuracy	Material certificate
2.2 test report	x	x
3.1 inspection certificate	x	x
DAkkS calibration certificate	x	-

	Special features	Order no.
Programming unit Model PU-548	■ Easy to use ■ LED status display ■ Compact design ■ No further voltage supply needed, neither for the programming unit nor for the transmitter	14231581
Adapter cable M12 to PU-548	Adapter cable for the connection of a modelTR31 resistance thermometer to the model PU-548 programming unit	14003193
M12 x 1 transmitter adapter to DIN EN 175301-803 angular connector (yellow female connector element)	Adapter for the connection of a resistance thermometer with a DIN EN 175301-803 angular connector form A with a 4 ...20mA output signal → see data sheet AC 80.17 Case: PA Ambient temperature: -40 ...+115 °C [-40 ...+239 °F] Union nut: Zinc die-cast Contacts: Copper-zinc alloy, tin-plated Dielectric strength: 500V Ingress protection: IP65 4 ...20mA M12 x 1 connector Angular connector	14069503
M12 x 1 Pt adapter to DIN EN 175301-803 angular connector (black female connector element)	Adapter for the connection of the resistance thermometer with a DIN EN 175301-803 form A angular connector with direct resistance output signal → see data sheet AC 80.17 Case: PA Ambient temperature: -40 ...+115 °C [-40 ...+239 °F] Union nut: Zinc die-cast Contacts: Copper-zinc alloy, tin-plated Dielectric strength: 500V Ingress protection: IP65 mA 4 ...20mA M12 x 1 connector Angular connector	14061115
Angular connector	Per DIN EN 175301-803 form A	11427567
Sealing for angular connector	For use with angular connector DIN EN 175301-803-A EPDM, brown	11437902