NIVELCO THERMOCOUNT TXP 1 Series User manual

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Thank you for choosing a NIVELCO instrument.
1. APPLICATION
THERMOCONT TXP resistance thermometers with a drilled thermo-well case are used as temperature
measurement sensors in industrial process control, especially in the gas industry. The temperature sensors
are suitable for temperature measurement of various gaseous media inside pipelines, tanks, and furnaces.
The heat-sink on the outer protective tube provides accurate measurement independently from the ambient
temperature. The double pipe construction - including the inner and outer tube and well - meets the
mechanical and vibrational protection requirements. Process connection and electrical connection are
provided as detailed below. The cable glands provide sealing for the cables.
The outer protective tube is a drilled thermo-well case made from stainless steel. The cover of the housing
has a chain to prevent misplacing it. The Pt100 temperature sensor can be replaced without removing the
instrument from the process.
2. TECHNICAL DATA
TXP–1–TXP–4–TXP–7–
Sensor
A
ccuracy class Pt100A, class “
A
” (MSZ EN 60751), as per order code
Type single, 2-wire dual, 3-wire single, 4-wire
Material of internal protective
tube PTFE
Process connection Spring loaded
Version Ground-independent
Housing
Housing material Powder-coated aluminum (EN AC
–
43100)
Cable gland M20×1.5 or without cable glands, ½" NPT interior thread
Cable
For Ex ia protection type: nickel-plated brass cable gland, or closing bolt;
For Ex d and Ex dia protection types:
Ex d IIC certified cable gland for cable Ø6…Ø12 mm (Ø.236…Ø.472")
Electrical connection Screw type terminal
Ingress protection IP67
Probe
Process connection M33x2, 1″NPT
Material 1.4571 stainless steel
Insertion length max. 500 mm (19.7″), as per order codes
Process pressure Max. 80 bar (8 MPa / 1160 psi)
Measuring range
–
50…+150 °C (−58…+302 °F)
A
mbient temperature
–
30…+80 °C (−22…+176 °F)
Electrical protection Class III
Ex marking
II 1 G Ex ia IIB T6…T4 Ga
II 2 G Ex d IIB T6…T4 Gb
II 1/2 G Ex d ia IIB T6…T4 Ga/Gb
Ex Information Ui: 30 V, Ii: 140 mA, Pi: 1,1W, Co= 0, Lo= 0
2.1 EX TEMPERATURE CLASSIFICATION
Temperature class T6 T5 T4
Max. ambient temperature +65 °C (+149 °F) +70 °C (+158 °F) +70 °C (+158 °F)
Max. medium temperature +85 °C (+185 °F) +100 °C (+212 °F) +135 °C (+275 °F)
2.2 ACCESSORIES
User’s Manual
Warranty Card
EU Declaration of Conformity
2.3 ORDER CODES
THERMOCONT T X P – – Ex (1)
PROCESS CONNECTION CODE SENSOR TYPE /PT100
CLASS “A” CODE PROBE LENGTH CODE EX CERTIFICATE CODE
1" NPT 1 Single, 2-wire 1 120 mm 0 None 0
M33x2 V Dual, 3-wire 4 160 mm 1 Ex d ia IIB / ½″NPT(2) 6
Single, 4-wire 7 200 mm 2 Ex ia IIB 7
250 mm 3 Ex d ia IIB 8
(1) The order code of the Ex-version ends in “Ex” 300 mm 4 Ex d IIB 9
(2) Without cable glands, use glands with protection designation "d" only 350 mm 5
400 mm 6
450 mm 7
500 mm 8

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2.4 DIMENSIONS
TXP–1–TXP–V–LABEL OF THE INCORPORATED SENSOR
The sensor insert has a unique manufacturing
identification number.
3. MOUNTING
The temperature sensor has a threaded process connection. The cables are sealed by the cable glands. The cable glands can be regular or Ex approved type.
4. SPECIAL CONDITIONS FOR SAFE USE
Do not remove the housing cover when energized!
The housing of the device must be connected to the equipotential network.
The device must be operated only with properly sealed Ex d IIC or Ex d IIB certified protective cable gland.
The unused cable gland must be closed with certified closing bolt.
When the wiring is finished and the housing cover is closed, the chain must be attached.
Take heed that the process connection of the instrument could be the same temperature as the measured medium. Therefore, the temperature class of the
instrument depends on the highest process temperature.
Tightening torque for the NPT 1" process connection types is 45 Nm.
II 1/2 G Ex d ia IIB T__ Gb approved temperature sensors must be operated from certified [Ex ia] IIC or [Ex ia] IIB intrinsically safe circuits of the following technical
specifications:
Ui: 30 V, Ii: 140 mA, Pi: 1,1W
5. WIRING
Wiring of 2-wire single temperature sensor Wiring of 4-wire single temperature sensor Wiring of 3-wire dual temperature sensor
6. MAINTENANCE, REPAIR
The device does not require regular maintenance. The warranty card contains the terms and conditions. Before returning the device for repairs, it must be cleaned
thoroughly. The parts in contact with the medium may contain harmful substances; therefore, they must be decontaminated.
Our official form (Returned Equipment Handling Form) must be filled and enclosed in the parcel. Download it from our website www.nivelco.com. The device must be sent
back with a declaration of decontamination. A statement must be provided in the declaration that the decontamination process was successfully completed and that the
device is clean from any hazardous substances.
7. STORAGE CONDITIONS
Ambient temperature: –25…+60 °C (–13…+140 °F).
txp171en22h03
April 2022
NIVELCO reserves the right to change anything in this manual without notice!