Temperature transmitters for RTD and thermocouples

iTEMP TMT127 / 187 and TMT128 / 188

from €74.-

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High accuracy (in total ambient temperature range)
Fault indication on sensor short or open circuit to NAMUR NE 43
Galvanic isolation

Specs at a glance

Approval	ATEX II (1) G EEx ia
Accuracy	<0.08 %（Pt100）
Measuring range	Fixed, selectable
RTD sensors	3 or 4-wire

Head transmitters

Product / Version		Price / pcs. in EUR			Order code
Approval	Configuration Connection Temperature Sensor	1 to 3	4 to 10	11+
Non-hazardous area	RTD 3-wire Pt100, -200...850oC, min. span 10K	84,-	78,-	74,-	TMT187-A31xxA Select options
Non-hazardous area	RTD 4-wire Pt100, -200...850oC, min. span 10K	84,-	78,-	74,-	TMT187-A41xxA Select options
ATEX II1G EEx ia IIC T4/T5/T6	RTD 3-wire Pt100, -200...850oC, min. span 10K	97,-	91,-	86,-	TMT187-B31xxA Select options
ATEX II1G EEx ia IIC T4/T5/T6	RTD 4-wire Pt100, -200...850oC, min. span 10K	97,-	91,-	86,-	TMT187-B41xxA Select options
Non-hazardous area	Thermoelement	84,-	78,-	74,-	TMT188-AxxxA Select options
ATEX II1G EEx ia IIC T4/T5/T6	Thermoelement	97,-	91,-	86,-	TMT188-BxxxA Select options

DIN rail transmitters

Product / Version		Price / pcs. in EUR			Order code
Approval	Terminal Type Temperature Sensor	1 to 3	4 to 10	11+
Non-hazardous area	RTD 3-wire Pt100, -200...850oC, min. span 10K	101,-	93,-	88,-	TMT127-A31xxA Select options
Non-hazardous area	RTD 4-wire Pt100, -200...850oC, min. span 10K	101,-	93,-	88,-	TMT127-A41xxA Select options
ATEX II2(1)G Ex ia[ia Ga] IIC T6 Gb	RTD 3-wire Pt100, -200...850oC, min. span 10K	114,-	106,-	100,-	TMT127-B31xxA Select options
ATEX II2(1)G Ex ia[ia Ga] IIC T6 Gb	RTD 4-wire	114,-	106,-	100,-	TMT127-B41xxA Select options
Non-hazardous area	Thermoelement	101,-	93,-	88,-	TMT128-AxxxA Select options
ATEX II2(1)G Ex ia[ia Ga] IIC T6 Gb	Thermoelement	114,-	106,-	100,-	TMT128-BxxxA Select options

Accessory

Product / Version				Price / pcs. in EUR			Order code
Housing Field, R4 182x180x165, 5xM20, PC Protection housing Minitec. Synthetic housing with transparent cover. Protection IP66. 4x22.5mm / 2x45mm. Usage: FTL825.				72,85			52010132 Add to cart

Prices valid until 30.06.2019 in EUR per unit (not including shipping and applicable sales tax). See
Endress+Hauser Terms and Conditions

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Application

This range of temperature transmitters are available as either head transmitters (TMT187/188) or as rail mounted devices (TMT127/128). The TMT187/188 head transmitters can be installed in the form B sensor head and have a fixed measurement range as well as a 4 to 20 mA analog output.

Input:
TMT127/187 resistance thermometer (RTD) or
TMT128/188 thermoelements (TC)

Function

The TMT127/187 RTD temperature transmitter is a two-wire transmitter with an analog output and a three- or four-wire resistance thermometer input.

The TMT128/188 TC temperature transmitter is a two-wire transmitter with an analog output and thermocouple input.

Technical data TMT187 / TMT188

Input
TMT187 (RTD)	Pt100
TMT188 (TC)	Type J, K, N, R, S, T
Output
Output signal	4 to 20 mA transmission is linear to temperature and resistance
Maximum load	(V_{power supply} –8 V)/0.025 A
Input current required	≤3.5 mA
Current limit	≤25 mA
Switch on delay	4 s (during power up I_a = 3.8 mA)
Response time	1 s
Signal on alarm
Underranging	Linear drop to 3.8 mA
Overranging	Linear rise to 20.5 mA
Sensor breakage/ Sensor short circuit	≥ 21.0 mA
Electrical connection
Power supply	U_b = 8 to 35 V, reverse polarity protected Ex U_b = 8 to 30 V
Galvanic isolation	U = 2 kV AC
Allowable ripple	U_ss ≤ 5 V at U_b ≥ 13 V, f_max = 1 kHz
Reference conditions	Calibration temperature 23 °C ± 5 K (73.4 °F ± 9 °F)
Accuracy
Influence of power supply	≤ ±0.01 %/V deviation from 24 V
Load influence	≤ ±0.02 %/100 Ω
Temperature drift	Pt100: T_d = ±(15 ppm/K x (max. measuring range + 200) + 50 ppm/K × preset measuring range) × Δθ TC: T_d = ± (50 ppm/K × max. measuring range + 50 ppm/K × preset measuring range) × Δθ Δθ = Deviation of ambient temperature from the referent working condition (+23 °C ±5 K (73.4 °F ± 9 °F))
Pt100	0.2 K or 0.08 %
Thermocouple type	J and K: typ. 0.5 K N: typ. 1.0 K S and R: typ. 2.0 K Influence of the internal reference junction: Pt100 Class B
Operating conditions
Ambient temperature	–40 to +85 °C (–40 to 185 °F)
Storage temperature	–40 to +100 °C (–40 to 212 °F)
Climatic class	According to EN 60 654-1, Class C
Vibration protection	4 g/2 to 150 Hz acc. to IEC 60 068-2-6
EMC	Interference immunity and interference emission according to EN 61 326-1 (IEC 1326) and NAMUR NE 21
Max. ambient temperature	T4 = 85 °C, T5 = 70 °C, T6 = 55 °C (T4 = 185 °F, T5 = 158 °F, T6 = 131 °F)
Approvals
Ex approval	ATEX II 1G	EEx ia/IIC	EEx ia/IIB
Inductivity and capacity	C_i ≈ 0 F L_i ≈ 0 H	C₀ ≤ 709 µF L₀ ≤ 4.5 mH	C₀ ≤ 1300 µF L₀ ≤ 100 mH
Max. current	I_i = 100 mA	I₀ = 4.5 mA
Max. voltage	U_i = 30 V	U₀ = 9.6 V
Max. power	P_i = 0.75 W	P₀ = 11 mW

Technical data TMT127 / TMT128

Input
TMT127 (RTD)	Pt100
TMT128 (TC)	Type J, K, N, R, S, T
Output
Output signal	4 to 20 mA transmission is linear to temperature and resistance
Max. load	(V_{power supply} –12 V)/0.022 A
Input current required	≤3.5 mA
Current limit	≤23 mA
Switch on delay	4 s (during power up I_a = 3.8 mA)
Response time	1 s
Signal on alarm
Underranging	Linear drop to 3.8 mA
Overranging	Linear rise to 20.5 mA
Sensor breakage/Sensor short circuit	≥21.0 mA
Electrical connection
Power supply	U_b = 12 to 35 V, reverse polarity protected Ex U_b = 12 to 30 V
Galvanic isolation	U = 2 kV AC
Allowable ripple	U_ss ≤ 3 V at U_b ≥ 15 V, f_max = 1 kHz
Reference conditions	Calibration temperature 25 °C ±5 K (77 °F ± 9 °F)
Accuracy
Influence of power supply	≤ ±0.01 %/V deviation from 24 V
Load influence	≤ ±0.02 %/100 Ω
Temperature drift	Pt100: T_d = ±(15 ppm/K × (max. measuring range + 200) + 50 ppm/K × preset measuring range) × Δθ TC: T_d = ±(50 ppm/K × max. measuring range + 50 ppm/K × preset measuring range) × Δθ Δθ = Deviation of ambient temperature from the referent working condition (+23 °C ±5 K (73.4 °F ± 9 °F))
Pt100	0.2 K or 0.08 %
Thermocouple type	J and K: typ. 0.5 K N: typ. 1.0 K, S and R: typ. 2.0 K Influence of the internal reference junction: Pt100 Class B
Operating conditions
Ambient temperature	–40 to +85 °C (–40 to 185 °F)
Storage temperature	–40 to +100 °C (–40 to 212 °F)
Climatic class	according to EN 60 654-1, Class C
Vibration protection	4 g/2 to 150 Hz acc. to IEC 60 068-2-6
EMC	Interference immunity and interference emission according to EN 61 326-1 (IEC 1326) and NAMUR NE 21
Max. ambient temperature	T4 = 85 °C, T5 = 70 °C, T6 = 55 °C (T4 = 185 °F, T5 = 158 °F, T6 = 131 °F)
Approvals
Ex approval	ATEX II 1G	EEx ia/IIC	EEx ia/IIB
Inductivity and capacity	C_i ≈ 0 F L_i ≈ 0 H	C₀ ≤ 24 µF L₀ ≤ 100 mH	C₀ ≤ 12 µF L₀ ≤ 8.5 mH
Max. current	I_i = 100 mA	I₀ = 9.6 mA
Max. voltage	U_i = 30 V	U₀ = 4.4 V
Max. power	P_i = 0.75 W	P₀ = 11 mW

Dimensions (in mm)

TMT187 / TMT188

Temperature transmitters - Dimensions 1 — **Installation according to operation instructions**

TMT127 / TMT128

Temperature transmitters - Dimensions 2 — **Installation according to operation instructions**

Electrical connection

TMT187 / TMT188 – Power supply and current output

TMT187 / TMT188 – Sensor connection

a) SETUP socket

b) TMT187 three-wire RTD

c) TMT187 four-wire RTD

d) TMT188 TC

TMT127 / TMT128 – Power supply and current output

TMT127 / TMT128 – Sensor connection

Temperature transmitters - Wiring 3 — a) TC

b) RTD three-wire

c) RTD four-wire

Measuring ranges

TMT127/187 (RTD) Pt100

Code	Measuring range	Code	Measuring range
BA	–50...+100 °C	FE	0...100 °C
CA	–40...+60 °C	FG	0...150 °C
DA	–30...+60 °C	FH	0...200 °C
DB	–30...+150 °C	FI	0...250 °C
EA	–20...+20 °C	FJ	0...300 °C
EB	–20...+60 °C	FK	0...400 °C
FC	0...+50 °C	FL	0...500 °C
		FN	0...600 °C

TMT128/188 (TC)

Code	Measuring range	Code	Measuring range	Code	Measuring range
Type J	0...1200 °C	Type K	0...200 °C	Type N	0...1200 °C
JAB	0...150 °C	KAB	0...150 °C	NAB	0...150 °C
JAK	0...200 °C	KAK	0...200 °C	NAK	0...200 °C
JAC	0...250 °C	KAC	0...250 °C	NAC	0...250 °C
JAL	0...300 °C	KAL	0...300 °C	NAL	0...300 °C
JAD	0...400 °C	KAD	0...400 °C	NAD	0...400 °C
JAE	0...600 °C	KAE	0...600 °C	NAE	0...600 °C
JAF	0...900 °C	KAF	0...900 °C	NAF	0...900 °C
JAG	0...1000 °C	KAG	0...1000 °C	NAG	0...1000 °C
JAH	0...1200 °C	KAH	0...1200 °C	NAH	0...1200 °C
Type R	0...1600° C	Type S	0...1600 °C	Type T	–50...+300 °C
RAE	0...600 °C	SAE	0...600 °C	TJA	–50...+200 °C
RAF	0...900 °C	SAF	0...900 °C	TAA	0...100 °C
RAG	0...1000 °C	SAG	0...1000 °C	TAB	0...150 °C
RAH	0...1200 °C	SAH	0...1200 °C	TAK	0...200 °C
RAI	0...1400 °C	SAI	0...1400 °C	TAC	0...250 °C
RAJ	0...1600 °C	SAJ	0...1600 °C	TAL	0...300 °C
More measuring ranges and sensor types on request!

More documents for TMT127

More documents for TMT128

More documents for TMT187

More documents for TMT188