Wise R950 Series Manuale utente

C-QIM-2731-T08_EN_Rev.12

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Explosion proof

thermocouple & RTD

ETR10 series

R950 series

C-QIM-2731-T08_EN_Rev.12

Tel +82-2-300-2300

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Contents

1. General items...................................................................................................................... 3

1.1 Introduction.........................................................................................................................3

1.2 Application.......................................................................................................................... 3

1.3 Warranty.............................................................................................................................3

2. Warning............................................................................................................................... 4

3. Main specs..........................................................................................................................5

3.1 Explosion-proof...................................................................................................................5

3.2 Protection grade.................................................................................................................5

3.3 Temperature sensor types .................................................................................................5

3.4 Accuracy and tolerances.................................................................................................... 5

4. Design................................................................................................................................. 7

4.1 Structure.............................................................................................................................7

4.1.1 Basic type........................................................................................................................ 7

4.1.2 Spring loaded type ..........................................................................................................7

4.1.3 Remote type.................................................................................................................... 7

4.1.4 Extended lead wire type.................................................................................................. 7

4.2 Head................................................................................................................................... 8

4.3 Detector unit and process connection unit material...........................................................9

4.4 Process connection unit................................................................................................... 10

4.4.1 Sheathed cable (MI cable) type..................................................................................... 10

4.4.2 Remote type.................................................................................................................. 10

4.4.3 Extended lead wire type................................................................................................ 11

4.5 Relationship between process connection unit length and head temperature increase.. 12

4.6 Electric parameters...........................................................................................................13

4.6.1 Increased safety (Ex e) ................................................................................................. 13

4.6.2 Intrinsically safe (Ex ia) .................................................................................................13

5. Installation guide ...............................................................................................................14

5.1 Pre-installation checks and precautions...........................................................................14

5.2 Installation requirement....................................................................................................14

5.3 Installation in explosion proof areas.................................................................................16

6. Wiring ................................................................................................................................17

6.1 Extension & compensation wire....................................................................................... 17

6.1.1 Thermocouple(TC) ........................................................................................................17

6.1.2 Resistance thermometer detector(RTD)....................................................................... 17

6.2 Precaution for wiring.........................................................................................................18

6.3 Terminal block wiring........................................................................................................19

6.3.1 Thermocouple (TC) ....................................................................................................... 19

6.3.2 Resistance thermometer detector (RTD)...................................................................... 20

C-QIM-2731-T08_EN_Rev.12

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6.4 International color code table...........................................................................................21

7. Name plate........................................................................................................................22

7.1 Name plate indications..................................................................................................... 22

8. Repair and maintenance...................................................................................................23

9. Defect................................................................................................................................ 23

10.User’s duties......................................................................................................................24

11.Product return.................................................................................................................... 24

C-QIM-2731-T08_EN_Rev.12

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1. General items

1.1 Introduction

WISE Control Inc. temperature sensors and thermowells are precisely fabricated according to

customer specifications. The ETR10 series(R950) is an explosion-proof product designed to be used

in Zone 1(Ex e), Zone 0(Ex ia) with IECEx and ATEX certification. The product come in a variety of

types –basic, spring-loaded, remote type, extension lead wire type–and can be selected and used

accordingly to the usage environment. The products must be tested and stored in appropriate

locations, and the requirements provided in the documentation, test reports and handling manuals,

etc., must be adhered to in order to maintain optimum state during the duration of use.

1.2 Application

Temperature sensors are used for temperature measurements in various processes. Measured values

are used for indication, recording and control in control panels or process systems. Depending on the

process situation, an appropriate thermowell may be selected and used, or a temperature sensor may

be inserted directly into a pipe without a thermowell. The thermowell is designed to protect a

thermometer or temperature sensor from fluid flow velocity, pressure and corrosion, etc., inside pipes.

The design prevents leakage of fluid from inside the pipe when a malfunctioning sensor is being

replaced. The user is responsible for selecting the appropriate thermowell for the process at hand.

WISE Control Inc. may provide advice when selecting products, but will not be held liable for mis-

selection of product.

1.3 Warranty

If one causes damage to the product due to failures to comply with the user manual, or if one

arbitrarily remodels it, changes or repairs the product, the manufacturer will not be responsible for it,

and the product warranty period will expire.

C-QIM-2731-T08_EN_Rev.12

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2. Warning

Guide on handling for safe use

For the safe and correct use of the product, make sure to read the handling guide carefully before use.

Handling errors can cause device malfunctions, and it can lead to injury, accidents, etc..

Warning !

1) For the safety, only a worker with professional skills in electronics and electrical construction

is allowed to install the product

2) Make sure to use the product within the rated input/output range set in the specifications

3) Install the product in the environment of use indicated in the specifications.

4) Install wiring in accordance with the indoor wiring provisions and the Technical Standard for

Electrical Installations.

5) Make sure power has been cut off before performing wiring work.

6) Use wires with a sheath-insulated crimp terminal at the end.

7) Cable glands of the same explosion proof grade or higher.

8) Do not disassemble the product under any circumstances.

9) Use the product in the permissible temperature range.

10) Do not apply excessive loads, vibrations, or impacts.

11) When selecting a thermowell for the product, select a thermowell appropriate to the usage

conditions and environment.

12) The customer is responsible for mis-selection of thermowells.

13) Do not grab the head and turn it. Using a tool, hold the hexagonal screw parts to turn it. O-

ring can cause changes over time or characteristics change, and it can lead to a loss of

necessary functions for sealing, thus it requires periodic replacement, and in general, it is

recommended to replace it every 5 years.

C-QIM-2731-T08_EN_Rev.12

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3. Main specs

3.1 Explosion-proof

Model: R950 (ETR10 series)

Explosion-proofing grade:ATEX II 2G Ex e IIC T6…T1 Gb, IECEx Ex e IIC T6…T1 Gb,

KCs Ex e IIC T6…T1, CSA Ex eb IIC T6…T1 Gb

ATEX II 1/2 G Ex ia IIC T6…T3 Ga/Gb, IECEx Ex ia IIC T6…T3 Ga/Gb,

KCs Ex ia IIC T6

Explosion-proofing technology: IEC 60079-0, IEC 60079-7, IEC 60079-11, IEC 60079-26

3.2 Protection grade

IP65

3.3 Temperature sensor types

Thermocouple (TC)

ATEX

IECEx

KCs

CSA

Ex e

K, E, N, J, T, B, R, S

Ex ia

K, E, N, J, T, B, R, S

Resistance thermometer detector (RTD): Pt100Ωat 0℃

3.4 Accuracy and tolerances

Thermocouple (TC)

Class 1, Class 2 (DIN/IEC584-2, BS/EN60584-2, JIS C1602)

Special, Standard (ASTM E230, E988, ISA-MC96.1)

Resistance thermometer detector (RTD)

Class A : ± (0.15 + 0.002 l t l)

Class B : ± (0.3 + 0.005 l t l)

Please consult the table below for details.

C-QIM-2731-T08_EN_Rev.12

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1) Thermocouple (TC): Class 1,2,3(IEC/EN 60584-2) or Standard / Special(ASTM E230, ANSI MC 96.1)

Type

Class

Temperature range

Maximum deviation

Standard

-200 ~ 0 ℃

The greater of ±2.2 ℃or ±2%

0 ~ 1260 ℃

The greater of ±2.2 ℃or ±0.75%

Special

0 ~ 1260 ℃

The greater of ±1.1 ℃or ±0.4%

Standard

-200 ~ 0 ℃

The greater of ±1.7 ℃or ±1%

0 ~ 870 ℃

The greater of ±1.7 ℃or ±0.5%

Special

0 ~ 870 ℃

The greater of ±1.0 ℃or ±0.4%

Standard

870 ~ 1700 ℃

±0.5%

Special

870 ~ 1700 ℃

±0.25%

Standard

0 ~ 1480 ℃

The greater of ±1.5 ℃or ±0.25%

Special

0 ~ 1480 ℃

The greater of ±0.6 ℃or ±0.1%

Standard

0 ~ 1480 ℃

The greater of ±1.5 ℃or ±0.25%

Special

0 ~ 1480 ℃

The greater of ±0.6 ℃or ±0.1%

Standard

0 ~ 1260 ℃

The greater of ±2.2 ℃or ±0.75%

Special

0 ~ 1260 ℃

The greater of ±1.1 ℃or ±0.4%

Standard

-200 ~ 0 ℃

The greater of ±1.0 ℃or ±1.5%

0 ~ 370 ℃

The greater of ±1.0 ℃or ±0.75%

Special

0 ~ 370 ℃

The greater of ±0.5 ℃or ±0.4%

Standard

0 ~ 760 ℃

The greater of ±2.2 ℃or ±0.75%

Special

0 ~ 760 ℃

The greater of ±1.1 ℃or ±0.4%

*Note.

Each model has different certification types. See “3.3 Temperature sensor types” and look up the

certifications for the applicable type in the table.

2) Resistance thermometer detector (RTD): Class A, B (IEC/EN 60751)

Tolerance

class

Temperature range of validity (°C)

Tolerance value (℃)

For wire wound resistors

For film resistors

-100 to +450

-30 to +300

±( 0.15 + 0.002 | t | )

-196 to +600

-50 to +500

±( 0.3 + 0.005 | t | )

C-QIM-2731-T08_EN_Rev.12

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4. Design

4.1 Structure

4.1.1 Basic type

Explosion proof products are resistance against pressure and explosion. The enclosure is designed to

withstand the pressure of explosive gases or vapors exploding inside, and to prevent combustion due

to explosive gases or vapors outside the enclosure through joints and lead-ins. The basic type of the

products are comprised of a detector unit and process connection unit welded together. An appropriate

process connection unit may be selected and used depending on the installation environment. The

temperature sensor may be installed by inserting directly, or together with a thermowell appropriate to

the use environment.

4.1.2 Spring loaded type

In the spring-loaded type, a spring is installed inside the head, and the load from the spring allows the

sensor to maintain maximum contact. Detection response time is faster compared to the basic type.

Spring-loaded type sensors are not sealed to allow for movement of the detector unit, and are typically

installed together with a thermowell appropriate to the use environment. When installing the

temperature sensor directly, contact between the process fluid and temperature sensor should be

avoided, or a sealed type sensor should be used instead

4.1.3 Remote type

In the remote type, an extension table extends out beneath the head and is connected to a sheathed

cable The actual measuring element is inside the sheathed cable, and the distance between the head

and measuring element can be selected according to the installation location. The extension cable is

typically insulated stainless steel. Depending on the installation environment, a wall-mount bracket or

2” bracket may be used.

4.1.4 Extended lead wire type

The extended lead wire type does not have a head or terminal block, and is comprised of an extension

cable and sheathed cable. The cable may be insulated stainless steel, or sheathed with PVC, Teflon or

copper braid depending on the use environment.

C-QIM-2731-T08_EN_Rev.12

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4.2 Head

Warning: Certified explosion proof cable glands must be used when installing in hazardous areas.

See the <Table: Head information> below for the types of cables that may be connected.

Table : Head information

Head

Head material

Head thread

(Cable entry size)

Conduit adaptor

material

Explosion proof

(Single/Dual entry

type)

ALDC12.1

(Single entry)

PF 1/2, PF 3/4,

NPT 1/2, NPT 3/4

M20x1.5P

PT (unavailable)

Brass+Ni.plating

316SS

PF 1/2

AC4C

(Dual entry)

PF 1/2

Explosion proof

(Single entry)

Explosion proof

(Double entry)

C-QIM-2731-T08_EN_Rev.12

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4.3 Detector unit and process connection unit material

Metal

Material

Usage

temperature

(℃)

Max.

temperature

(℃)

Characteristic

304SS

900

1000

Typically used in thermowells to protect against heat and

corrosion. Direct use in sulfurous environments or

reducing flame is not recommended.

316SS

900

1000

Contains Mo for outstanding heat, acid and alkaline

resistance.

316L SS

950

1050

Less carbon content than 316.

Better acid and alkaline resistance than 316SS.

321SS

900

1000

Weak sulfur and reducing heat resistance. Outstanding

corrosion and heat resistance

310SS

950

1050

High Ni and Cr content, with optimal high-temperature

strength with high heat and oxidation resistance.

347SS

900

1000

Contains Nb-Ta for better corrosion resistance than

304SS. Outstanding resistance to fine surface corrosion.

446SS

1050

1125

High Cr steel with outstanding resistance to oxidizing and

reducing atmospheres containing sulfur. Suitable for salt

baths, castings and other high-temperature

environments.

Inconel600

1180

1250

High Cr and Ni steel with outstanding resistance to

oxidizing and reducing atmospheres at high temperature.

Cannot be used in sulfurous atmospheres.

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