Thermocouple, B type, Assembly

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$1,095.74

B type thermocouple assembles with protection head and corundum thermowell, should use wooden case for packing. Its thermo wire diameter is Ф0.5mm. B type thermocouple has the best performence and longest life. It can directly measure the temperature in the range of 0~1600 ℃ in various production processes.

Total Length of Thermowell *

SKU: ATO-TC-BA

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Delivery date: 6-12 days

Overview
Dimension

As a temperature sensor, thermocouple assembly is usually used with display instruments, recording instruments and signal conditioners.

Specification

1. Thermocouple temperature range chart

Category	Type of sensing element	Relationship between wire diameter and temperature
Category	Type of sensing element	Thermo wire diameter (mm)	Long-term temperature (℃)	Short-tem temperature (℃)
Platinum Rhodium 30 - Platinum Rhodium 6	B type	Φ0.5	1600	1800
Platinum Rhodium 13 - Platinum	R type	Φ0.5	1300	1600
Platinum Rhodium 10 - Platinum	S type	Φ0.5	1300	1600
Nickel chromium silicon - Nickel silicon magnesium	N type	Φ0.3	700	800
		Φ0.5	800	900
		Φ0.8, Φ1.0	900	1000
		Φ1.2, Φ1.6	1000	1100
		Φ2.0, Φ2.5	1100	1200
		Φ3.2	1200	1300
Nickel chromium - Nickel silicon	K type	Φ0.3	700	800
		Φ0.5	800	900
		Φ0.8, Φ1.0	900	1000
		Φ1.2, Φ1.6	1000	1100
		Φ2.0, Φ2.5	1100	1200
		Φ3.2	1200	1300
Nickel chromium - Copper nickel	E type	Φ0.3	350	450
		Φ0.5	450	550
		Φ0.8, Φ1.0	550	650
		Φ1.2, Φ1.6	650	750
		Φ2.0, Φ2.5	750	900
Iron - Constantan	J type	Φ0.3, Φ0.5	300	400
		Φ0.8, Φ1.0	400	500
		Φ1.2, Φ1.6	500	600
		Φ2.0, Φ2.5	600	750
Copper - Copper nickel	T type	Φ0.2	150	200
		Φ0.3, Φ0.5	200	250
		Φ1.0	250	300
		Φ1.6	350	400

2. Thermowell application temperature range chart

Thermowell material	Long-term temperature	Short-term temperature
Corundum CT1	1600	1800
High alumina CT2	1300	1600
Nickel base wrought superalloys 3YC52	1300	1350
Nickel base wrought superalloys GH3039	1250	1320
Nickel base superalloys GH3030	1200	1250
Heat resistant stainless steel 2Cr25Ni20	1200	1250
Silicon carbide	1100	1150
Stainless steel 316L	900	950
Stainless steel 1Cr18Ni9Ti	800	900

3. Thermowell installing form (unit: mm)

4. Selection chart

Total length of thermowell (L or L*L1)	Branch number	Thermowell installing form	Protection head form	Diameter and material of thermowell
300~2150mm (for I1, I2, I3, I4); 500500mm, 750500mm, 750*750mm (for I5); 225~450mm (for I6)	B1: Single branch; B2: Double branch	I0: No thermowell; I1: No fixed device; I2: Fixing thread; I3: Movable flange; I4: Fixed flange; I5: Rectangular movable flange; I6: Taper thermowell and fixing thread	C1: No protection head; C2: All stainless steel protection head; C3: Waterproof protection head; C4: Explosion-proof protection head	D0: Φ16mm; D1: Φ25mm, double-deck; D2: Φ16mm high quality aluminum; D3: Φ20mm high quality aluminum

5. Thermocouple assembly installation diagram

Application

Tips: Insulating bush of thermocouple
There must have favorable insulation between two pieces of thermode. And the insulating bush is just used to prevent short circuit of the two pieces of thermode. Various insulating materials have their own limitations, thus they must be selected according to temperature measurement and characteristics of insulating materials. For the convenience of usage, insulating materials are often made into round or oval shape tubular insulating bush, and structures include single-hole, double hole, four-hole and other specifications.

Fixed Installation Dimension Drawing

Design serial number		1
Structure diagram
Name		Fixed thread
Size		M272 (default), G3/4", M332, G1", other
Protection tube	Diameter	φ12mm, φ16mm, other
	Texture of material	1Cr18Ni9Ti, 2Cr25Ni20, other
	Withstand voltage	≤10MPa
Design serial number		2
Structure diagram
Name		Movable flange
Protection tube	Diameter	φ12mm, φ16mm, other
	Texture of material	1Cr18Ni9Ti, 2Cr25Ni20, other
	Withstand voltage	Atmospheric pressure
Design serial number		3
Structure diagram
Name		Fixed flange
Size		DN15mm (default)	D0	95mm	DN20mm	105mm
			D1	65mm		75mm
			D2	45mm		55mm
			φn	4-φ14mm		4-φ14mm
		DN25mm	D0	115mm	DN32mm	140mm
			D1	85mm		100mm
			D2	65mm		78mm
			φn	4-φ14mm		4-φ18mm
		DN40mm	D0	150mm	DN50mm	165mm
			D1	110mm		125mm
			D2	85mm		100mm
			φn	4-φ18mm		4-φ18mm
		H	12mm
Protection tube	Diameter	φ12mm, φ16mm, other
	Texture of material	1Cr18Ni9Ti, 2Cr25Ni20, other
	Withstand voltage	≤6.4MPa
Design serial number		4
Structure diagram
Name		Conical fixed thread
Size		M272 (default), M332, G1", other
Protection tube	Diameter	φ12mm, φ16mm, other
	Texture of material	1Cr18Ni9Ti, 2Cr25Ni20, other
	Withstand voltage	≥30MPa

Existing reviews of Thermocouple, B type, Assembly

Do you have programming software available for B type transmitters？

We just purchased four of these smart B type transmitters, and I am scaling them for 4ma = 0° C (or 32° F) and 20ma = 1800° C (or 3272° F). Is this correct? It works out correct when I use a process meter to simulate the B thermocouple signal, but it is 300 degrees low @ 2250° F when connected to a real type B thermocouple.
Also, there is a programming port - do you have programming software available for that, or is it only factory programmed?

From: Carson | Date: 26/05/2022

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ATO Responded

Hi, Carson,

Thanks for the feedback. This programming port is only used for factory programming calibration. Usually, the transmitter is calibrated when it leaves the factory. For "it is 300 degrees low 2250° F when connected to a real type B thermocouple " you mentioned, could you please provide us with some pictures of the test for confirmation.

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