Trolex Sentro 1 Manuale utente

www.trolex.com

TX6351

•

TX6352

Sentro 1 Universal Gas Detector

TX6351 • TX6352 User Manual

P5536.1600 rev B 3

TX6351 • TX6352 Sentro 1 Universal Gas Detector

Contents

1. Product Overview 4

1.1 Operating Features 4

1.2 Application 5

1.3 Product Options 5

1.4 Dimensions 6

1.5 Technical Information 7

1.6 Electrical Details 9

1.7 Sentro eModules 11

2. Certiﬁcation 18

3. Installation 23

3.1 Safety Precautions 20

3.2 Tools and Test

Equipment Required 24

3.3 Siting Recommendations 25

3.4 Connections 26

3.4.1 0.4 to 2 V Analogue

Output Signal 26

3.4.2 4 to 20 mA Analogue

Output Signal 27

3.4.3 5 to 15 Hz Output Signal 28

3.4.4 Contact Output Signal 28

3.4.5 RS485 Data Output Signal 29

3.5 Connecting in Hazardous

Areas 30

4. Setup and Calibration 31

4.1 Controls and Indicators 31

4.2 Main Display 33

4.3 Security Code Access 34

4.4 Main Menu 35

4.4.1 Calibrate 36

4.4.2 Sentro 1 Setup 39

4.4.3 Output Setup 41

4.4.4 Modbus 44

4.4.5 Module Setup 44

4.4.6 Support 47

5. Diagnostics and

Maintenance 48

5.1 Diagnostic Messages 48

5.2 Maintenance 49

5.3 Maintenance and

Calibration Log 52

5.4 Disposal 53

Disclaimers 53

Trademarks 54

Contact Details 54

Document History 54

www.trolex.com

TX6351 • TX6352 User Manual

4 P5536.1600 rev B

P5536.1600 rev B 5

1. Product Overview

TX6351

3/4 wire device with separate output signal and power lines.

Can be used with any Sentro eModule

TX6352

2-wire line powered 4 to 20 mA output signal.

Can ONLY be used with electrochemical Sentro eModules

1.1 Operating Features

• Fixed sensor for detection of Toxic Gases and Flammable Gases

•

Exclusive pre-calibrated plug-in gas sensing modules for many types of gas and

climatic conditions

• LCD readout and visual LED alarm indicators

• Choice of supply voltage and output signal format

• Heavy duty housing to IP65, EMC compliant

• STEL and TWA monitoring for selected gases

1.2 Application

Fixed point gas detection for safety monitoring in hazardous areas and general purpose

applications.

Underground Mining and Tunnelling

Ex ia I Ma

TX6351.01i

TX6352.01i

Supply Voltage:

12 V dc from an

approved power source

Type of protection:

Intrinsically safe. Ex ia

Category:

I M1

General Purpose

TX6351.03

TX6352.03

Supply Voltage:

24 V dc

1.3 Product Options

4-wire connection

Mining Ex ia

General Purpose

0.4 to 2 V output

TX6351.01i.11

4 to 20 mA output

TX6351.01i.12

TX6351.03.12

5 to 15 Hz output

TX6351.01i.13

Contact output

TX6351.01i.14

TX6351.03.14

RS485 output

TX6351.01i.15

TX6351.03.15

*2-wire line powered

Mining Ex ia

General Purpose

4 to 20 mA output

TX6352.01i.12

TX6352.03.12

*For use with Toxic Gas Sentro eModules only

www.trolex.com www.trolex.com

TX6351 • TX6352 User Manual

6 P5536.1600 rev B

P5536.1600 rev B 7

1.5 Technical Information

Ambient temperature limits

-20 to +40°C

Storage temperature

-20 to +60°C

Ambient pressure

800 to 1100 mbar

Humidity

15% to 90% non-condensing

Protection classiﬁcation

Dust and waterproof to IP65. Gas Port: IP54.

Housing material

Reinforced polymer

Nett weight

530 g

Cable entries

2 x M20

Electrical connections

4 mm barrier/clamp terminals

Conductors

A maximum of two per terminal

Conductor size

A maximum of 2.5 mm²

Terminal torque

2.4 Nm maximum

Information display

128 x 64 dot graphic backlit LCD

Vibration limits

Vibration limits (IEC 60079-29-1):

•

10 to 30 Hz - 1.00 mm total excursion

•

31 to 150 Hz - 19.6 m/s

acceleration peak

Impact limits

20 joules (housing)

Calibration and setup

Digitally controlled ZERO and SPAN pushbutton

setting

Signal ﬁx

The analogue output signal of the sensor is ﬁxed

during calibration to prevent false alarms from

being initiated

Fault indication

Under range signal transmitted and fault display for:

•

Loss of communications from the sensing

module

•

Sensing module absent for more than 10

seconds

•

Sensor over-range protect

Key coding

Coding stops prevent insertion of a non-valid

sensing module.

1.4 Dimensions

www.trolex.com www.trolex.com

TX6351 • TX6352 User Manual

8 P5536.1600 rev B

P5536.1600 rev B 9

Alarms

Programmable GENERAL alarms and HIGH alarms

with an LED indicator.

The two adjustable alarm setpoints are preset

during manufacture to default values appropriate

to the type of sensor, determined by the sensing

module being used.

STEL and TWA

Automatic setting of STEL and TWA limits to EH40

standards.

STEL: Exposure over 15-minute successive periods

TWA: Exposure over a continuous rolling 8-hour

period

Output signals

0.4 to 2 V

4 to 20 mA

5 to 15 Hz

Dual contacts

RS485 Modbus datacomms

1.6 Electrical Details

General Purpose

TX6351

3/4 wire. Remote powered

4 to 20 mA analogue output

Supply voltage:

18 to 28 V

Max. line load:

500 R at 24 V

Type of sensor:

Toxic

Flammable

Infrared

Supply current:

40 mA

60 mA

TX6351

3/4 wire. Remote powered

Dual output contacts

Supply voltage:

20 to 28 V

Type of sensor:

Toxic

Flammable

Infrared

Supply current:

35 mA

45 mA

60 mA

TX6351

3/4 wire. Remote powered

RS485 datacomms output

Supply voltage:

14 to 28 V

Line:

Modbus protocol

Type of sensor:

Toxic

Flammable

Infrared

Supply current:

40 mA

60 mA

TX6352

2 wire. Line powered

4 to 20 mA analogue output

Supply voltage:

18 to 28 V

Max. Line Load:

300 R

Type of Sensor:

Toxic only

www.trolex.com www.trolex.com

TX6351 • TX6352 User Manual

10 P5536.1600 rev B

P5536.1600 rev B 11

Mining and Tunnelling

TX6351

3/4 wire. Remote powered

4 to 20 mA

Supply voltage:

10 to 14 V

Max. line load:

220 R maximum @ 12 V dc

Type of sensor:

Toxic

Flammable

Infrared

Supply current @ 12 V:

48 mA

70 mA

91 mA

TX6351

3/4 wire. Remote powered

Dual output contacts

Supply voltage:

10 to 14 V

Type of sensor:

Toxic

Flammable

Infrared

Supply current @ 12 V:

60 mA

85 mA

105 mA

TX6351

3/4 wire. Remote powered

RS485 datacomms output

Supply voltage:

10 to 14 V

Line:

Modbus protocol

Type of sensor:

Toxic

Flammable

Infrared

Supply current @ 12 V:

25 mA

60 mA

80 mA

TX6351

3/4 wire. Remote powered

0.4 to 2 V analogue output

Supply voltage:

10 to 14 V

Min. line load:

10 KR

Type of sensor:

Toxic

Flammable

Infrared

Supply current @ 12 V:

20 mA

60 mA

80 mA

TX6351

3/4 wire. Remote powered

5 to 15 Hz analogue output

Supply voltage:

10 to 14 V

Max. line load:

Opto isolated to 2 mA maximum

Type of sensor:

Toxic

Flammable

Infrared

Supply current @ 12 V:

20 mA

60 mA

80 mA

TX6352

2 wire. Remote powered

4 to 20 mA analogue output

Supply voltage:

10 to 14 V

Max. line load:

90 R

Type of sensor:

Toxic only

1.7 Sentro eModules

Plug-in pre-calibrated modules with standardised output data.

•

Each module stores all the necessary data about its type identiﬁcation, sensing

range and speciﬁc calibration. This data is automatically recognised by Sentro when

the module is loaded into the module bay.

•

The modules are pre-calibrated so can be substituted at any time by a replacement

module – usually of the same type, but an alternative may be inserted if required.

•

Insert coding stops to prevent invalid module combinations.

•

The sensing module will identify itself when plugged into the sensor housing and

auto conﬁguration will take place.

•

All Sentro Modules have two output alarm signals for GENERAL alarm and HIGH

alarm. Default values are entered during manufacture and these can be changed to

preferred values.

•

The alarm signals can be set to illuminate built-in ﬂashing LED indicators.

•

The signals can operate the two GENERAL alarm and HIGH alarm relays on the

CONTACT OUTPUT version of Sentro 1.

Gas Sensor

www.trolex.com www.trolex.com

TX6351 • TX6352 User Manual

12 P5536.1600 rev B

P5536.1600 rev B 13

Flammable gases • Poison resistant catalytic sensor

The sensor can be conﬁgured to respond to many ﬂammable

gases and vapours. It is usual to calibrate to methane in

terms of %LEL or %volume.

TX6350

.240

.246

.244

Methane CH

Sensing element

Poison resistant pellistor with active temperature compensation

Sensing range

0 to 100% LEL

based on 4.4%v/v

0 to 4% v/v

0 to 5% v/v

Linearity

Linear up to 3% v/v

3% to 5% ±0.25%

Max. Drift @ 25°C

±0.25% CH4 v/v per month

*Response time t(63)

<15 secs

*Response time t(90)

<20 secs

Sensing element life

>5 years in clean atmosphere

Warm up time

<5 mins in air or 1% v/v CH4

Stabilisation time

≥15 mins

GENERAL alarm

10% LEL (.240)

0.40% (.246)

0.50% (.244)

HIGH alarm

25% LEL (.240)

1.00% (.246)

1.25% (.244)

* Response times are tested by owing test gas using the calibration kit referred to in section 5.2

Maintenance.

Checkpoint

Not suitable for use with the TX6352 4 to 20 mA two wire, line powered version of

Sentro.

Checkpoint

The pellistor is automatically protected against exposure to excessively high

concentrations of gas.

Section 4.4.5

Toxic gases • Electrochemical cells

Selected toxic gas modules are equipped with automatic

STEL/TWA calculation in accordance with EH40.

TX6350

.250.50

.250.250

.250.300

.250.500

.251

.252

Carbon

Monoxide

Carbon

Monoxide

Carbon

Monoxide

Carbon

Monoxide

Hydrogen

Sulphide

Sulphur

Dioxide

Sensing

element

Electrochemical cell

Sensing range

0 to

50 ppm

0 to

250 ppm

0 to

300 ppm

0 to

500 ppm

0 to

50 ppm

0 to

20 ppm

Linearity

±2% FS

Drift

2% per month

Repeatability

±2%

*Response

time t(63)

<20 secs

<30 secs

<20 secs

*Response

time t(90)

<30 secs

<45 secs

<30 secs

Operating life

2 years

Relative

humidity

15 to 90% non-condensing

Operating

temperature

-10 to +40°C

GENERAL

alarm

18 ppm

38 ppm

45 ppm

75 ppm

8 ppm

3 ppm

HIGH alarm

15 ppm

75ppm

90 ppm

150 ppm

15 ppm

6 ppm

STEL & TWA

200 ppm

10 ppm

1 ppm

30 ppm

5 ppm

0.5 ppm

* Response times are tested by owing test gas using the calibration kit referred to in section 5.2

Maintenance.

Section 4.4.5

www.trolex.com www.trolex.com

TX6351 • TX6352 User Manual

14 P5536.1600 rev B

P5536.1600 rev B 15

Toxic gases • Electrochemical cells - continued

Selected toxic gas modules are equipped with automatic

STEL/TWA calculation in accordance with EH40.

TX6350

.254

.254.10

.257

.259

.261

Nitrogen

Dioxide

Nitrogen

Dioxide

Oxygen

Nitric Oxide

Hydrogen H

Sensing element

Electrochemical Cell

Sensing range

0 to 20 ppm

0 to 10

ppm

0 to 25%

0 to 50 ppm

0 to

1000 ppm

Linearity

±2% FS

±0.3% vol

±5% FS

±2% FS

Drift

2% per month

10%

per year

2% per month

Repeatability

±2%

*Response time

t(63)

<20 secs

N/A

<20 secs

<30 secs

*Response time

t(90)

<30 secs

<60 secs

<30 secs

<40 secs

Operating life

2 years

Relative humidity

15 to 90% non-condensing

Operating

temperature

-10 to +40°C

GENERAL

alarm

3 ppm

1.5 ppm

19%

(under)

8 ppm

150 ppm

HIGH alarm

6 ppm

3 ppm

23%

(over)

15 ppm

300 ppm

STEL & TWA

1 ppm

N/A

10 ppm

N/A

0.5 ppm

N/A

25 ppm

N/A

* Response times are tested by owing test gas using the calibration kit referred to in section 5.2

Maintenance.

Checkpoint

Toxic gas Sentro eModules have a very low power consumption, enabling 4 to 20 mA two wire

TX6352 line-powered version of Sentro to be used.

Checkpoint

All values listed are nominal and slight variations may occur depending upon operating

conditions.

•

The natural level of oxygen available in the atmosphere is inﬂuenced by relative humidity

and temperature. The oxygen sensor will react to these changes.

•

Sudden changes in atmospheric pressure will also cause temporary instability in

electrochemical sensors which may exceed 60 seconds.

•

Long periods of use in extremely high or low humidity may aect the response of the

sensor and shorten the life of electrochemical sensors.

•

Nitric oxide sensors must be continuously powered to maintain calibration stability. If

power has been absent for more than 10 minutes, it may take 24-48 hours for the sensor

to restore stability. Do not calibrate until the output signal is steady.

•

The presence of high levels of carbon dioxide (over 5%) may have a minor eect on the

accuracy of the oxygen sensor.

Checkpoint

Periodic calibration of the gas sensor should be carried out whilst it is in service. For oxygen

and carbon monoxide gas sensors Trolex recommends that this is carried out every 3

weeks. For other gas sensors Trolex recommends that this is carried out in accordance

with best practice for the industry where the gas sensor is being used, and should take into

consideration local operating conditions.

Section 4.4.5

www.trolex.com www.trolex.com

TX6351 • TX6352 User Manual

16 P5536.1600 rev B

P5536.1600 rev B 17

Checkpoint - Carbon Dioxide Sensors

Normal atmosphere contains carbon dioxide which will aect the sensor signal so

nitrogen gas must be used to accurately calibrate the zero value. Power should be

applied to the sensor and the nitrogen applied for at least 5 minutes to ensure that the

sensor has stabilised.

Checkpoint

Not suitable for use with the TX6352 4 to 20 mA two wire, line powered version of

Sentro 1.

Carbon Dioxide/Methane Gases • Infrared sensor

The sensor is highly specic to the selected gas and exhibits

consistent sensing accuracy with superior long-term stability.

The linear response means that it can be calibrated for low gas

concentrations and high concentrations up to 100% by volume.

TX6350

.243

.245

.242

.278.2

.278

.279

Methane

Carbon

Dioxide

Carbon

Dioxide

Carbon

Dioxide

Sensing element

Infrared

Sensing range

0 to

5% v/v

0 to

100% LEL

0 to

100% v/v

0 to

2% v/v

0 to

5% v/v

0 to

100% v/v

Zero drift

±0.05% v/v

per month

±1% LEL

per month

±0.5% v/v

per month

±0.05% v/v per month

±1% v/v

per month

Repeatability

±0.1% v/v

±2% LEL

±2% v/v

±0.05% v/v

±2% v/v

*Response time

t(63)

<15 secs

*Response time

t(90)

<30 secs

Operating life

<5 years

Relative humidity

15 to 90% non-condensing

Operating

temperature

-10 to +40°C

GENERAL

alarm

0.5% v/v

10% LEL

10% v/v

0.3% v/v

0.75% v/v

15% v/v

HIGH alarm

1.25% v/v

25% LEL

25% v/v

0.6% v/v

1.5% v/v

30% v/v

* Response times are tested by owing test gas using the calibration kit referred to in section 5.2

Maintenance.

www.trolex.com www.trolex.com

TX6351 • TX6352 User Manual

18 P5536.1600 rev B

P5536.1600 rev B 19

2. Certication

2.1 Europe (ATEX)

Ex certiﬁed for use in M1 applications:

Europe (ATEX):

TX6351.01i.xx/TX6352.01i.xx

Ex Certiﬁcate number: SIRA09ATEX2352X

Ex Certiﬁcation code: I M1 Ex ia I Ma (20°C ≤ Ta ≤ +40°C)

Important

– Prior to installation, it is essential that the user refers to

Important – Prior to installation, it is essential that the user refers toImportant

the relevant certiﬁcate to ensure that the termination and cable

parameters are fully complied with and are compatible with

the application. Copies of certiﬁcates are available from

www.trolex.com.

ATEX directive 94/9/EC

EMC directive 2004/108/EC

Special Conditions for Safe Use

The minimum ingress protection stated in the Ex-certiﬁcates for the Sentro eModules

are satisﬁed when mounted in the Sentro Gas Detector, as are the conditions for impact

protection and external fuse protection in the case of the infrared eModule.

The Ex-certiﬁcates associated with the Sentro Modules are listed below:

eModule Flammable Group I SIRA 10ATEX2046U

eModule Toxic Group I SIRA 08ATEX2097U

eModule Infrared Group I SIRA 10ATEX2356U

2.2 Russia (Customs Union)

Ex Certiﬁcate number: TC RU C-GB.

ГБ

05.B.00616

Ex Certiﬁcation code: PO Ex ia I Ma X

Conditions of Use

Prior to installation, it is essential that user refers to the above certiﬁcate for any speciﬁc

conditions of use. The user must ensure that the termination and cable parameters are

fully complied with and are compatible with the application. Copies of certiﬁcates are

available from Trolex.

2.3 South Africa (MASC)

Ex Certiﬁcate number: MASC M/11-419X

Ex Certiﬁcation code: Ex ia I Ma

General Conditions for Safe Use

Prior to installation, it is essential that user refers to the above certiﬁcate to ensure that

the termination and cable parameters are fully complied with and are compatible with

the application. Copies of certiﬁcates are available from Trolex.

2.4 India (CIMFR)

Test report number: CIMFR/TC/P/H738

www.trolex.com www.trolex.com

Questo manuale è adatto per i seguenti modelli

Indice

Altri manuali Trolex Rilevatore di gas

Trolex

Trolex Sentro 8 Manuale utente

Trolex

Trolex Sentro Wireless TX6355 Manuale utente

Trolex

Trolex Sentro 1 TX6351 Manuale utente

Trolex

Trolex TX6373 Manuale utente

Manuali Rilevatore di gas popolari di altre marche

Macurco

Macurco GD-6 Manuale utente

Evikon

Evikon E2632 Manuale utente

Critical Environment Technologies

Critical Environment Technologies CGAS-A Series Manuale utente

MSA

MSA altair 5 Manuale utente

DOD Technologies

DOD Technologies ChemLogic CL96 Manuale utente

DEGA

DEGA NS III LCD Series Manuale utente

RKI Instruments

RKI Instruments 35-3001A-08-01 Manuale utente

PEMTECH

PEMTECH PT2008 Series Manuale utente

Coster

Coster RGS 328 Manuale utente

Sygonix

Sygonix 2483186 Manuale utente

Perry

Perry 1GA 50917MET/P Manuale utente

isweek

isweek AS8900 Manuale utente

Oldham

Oldham OLC 10 Manuale utente

Wizmart

Wizmart NB983 Manuale utente

Beacon

Beacon MEGA Manuale

RKI

RKI GX-6000 Manuale utente

Dräger

Dräger PIR 7000 Manuale utente

GDS

GDS GASMAX EC Manuale utente