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TX6351 • TX6352 User Manual

P5536.1600 rev A 41

Relay 1 Function Mode
Relay 2 Function Mode

• This item will appear in the

menu on the

Contact Output

version only.

• The operating function of each

relay can be independently setup.

Checkpoint

The general relay function will be reversed when monitoring oxygen deficiency

(i.e. the relay will de-energise when the measured gas concentration recedes

from the setpoint value).

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Summary of Contents for TX6351

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Page 3: ...Output Signal 23 3 4 2 4 to 20 mA Analogue Output Signal 24 3 4 3 5 to 15 Hz Output Signal 25 3 4 4 Contact Output Signal 25 3 4 5 RS485 Data Output Signal 26 3 5 Connecting in Hazardous Areas 27 4 S...

Page 4: ...th 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 c...

Page 5: ...trinsically 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 01 11 4 to 2...

Page 6: ...6 P5536 1600 rev A 1 4 Dimensions www trolex com...

Page 7: ...maximum Information display 128 x 64 dot graphic backlit LCD Vibration limits Vibration limits EN 60079 29 1 10 to 30 Hz 1 00 mm total excursion 31 to 150 Hz 19 6 m s2 acceleration peak Impact limits...

Page 8: ...ult values appropriate to the type of sensor determined by the sensing module being used STEL andTWA Automatic calibration of STEL and TWA limits to EH40 standards STEL Exposure over 15 minute success...

Page 9: ...A 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...

Page 10: ...X6351 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...

Page 11: ...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...

Page 12: ...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 T63 15 secs Response time T90 20 secs Sensing element life 5 years in clean atmosphere War...

Page 13: ...ensing 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 timeT63 20 secs 3...

Page 14: ...ell Sensing range 0 to 20 ppm 0 to 10 ppm 0 to 25 0 to 50 ppm 0 to 1000 ppm Linearity 2 FS 5 FS 2 FS Drift 2 per month 10 per year 2 per month Repeatability 2 Response time T63 20 secs N A 20 secs 70...

Page 15: ...he 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...

Page 16: ...ioxide CO2 Carbon Dioxide CO2 Carbon Dioxide CO2 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...

Page 17: ...ffect 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 sen...

Page 18: ...th 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 th...

Page 19: ...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...

Page 20: ...nsor Transmitters Model Terminals Input Parameters Ui li Ci Li Pi TX6351 01i 11 and TX9081 01i 11 5 WRT 6 14 4 V 1 2 3 1 WRT 2 or 3 TX6351 01i 12 and TX9081 01i 12 5 WRT 6 14 4 V 1 2 3 1 WRT 2 or 3 TX...

Page 21: ...0 0 0 TX6352 01i 12 1 WRT 2 0 0 1 Ii Not critical 2 Ci Ci 0 unless an rModule is connected to the Sentro 1 then Ci 0 38 F plus the Ci of the external sensors connected to the rModule 3 Li Total Li of...

Page 22: ...chemical cells for toxic gases can be affected by other interfering gases which may displace the subject gas being monitored Steam laden atmospheres and condensation can also reduce the sensitivity Fl...

Page 23: ...contains a gas that dilutes or displaces the air this may reduce the response of catalytic sensors Similarly steam laden atmospheres and condensation can reduce the stability High Concentrations of F...

Page 24: ...sited where they are capable of monitoring those parts of a plant where gas may accumulate or where a source of gas release is expected to occur This way the earliest possible warning of a gas releas...

Page 25: ...sor current consumption Both the signal and the power supply to the sensor are being carried in the common 0 V conductor so at some point influenced by the length of the cable and the resistance of th...

Page 26: ...entro eModules only The output signal from terminals 1 and 2 is a conventional 4 to 20 mA two wire current regulated signal loop Electrochemical cells have very low power consumption so the same loop...

Page 27: ...nt output contacts for remote signalling and control Setpoint values for GENERAL alarm and HIGH alarm are setup during manufacture to prescribed levels appropriate to the type of gas intended to be mo...

Page 28: ...n a single data cable The address code of the sensor is marked on the duty label of the sensor Physical layer RS485 Protocol Trolex proprietary Connection mode Modbus Number of points 32 Maximum dista...

Page 29: ...eas category M1 when used with approved monitoring apparatus Power for the sensor must be derived from an approved 12 V dc power supply e g TX6642 Intrinsically Safe Power Supply or approved apparatus...

Page 30: ...30 P5536 1600 rev A 4 Setup and Calibration 4 1 Controls and Indicators www trolex com...

Page 31: ...TX6351 TX6352 User Manual P5536 1600 rev A 31 www trolex com...

Page 32: ...32 P5536 1600 rev A 4 2 Main Display Power On NEXT FUNCTION SELECT CHANGE Checkpoint Next Function is the Left hand key L and Select Change is the Right hand key R www trolex com...

Page 33: ...entro may be safely removed for setup in a hazardous area even with the power applied 4 3 Security Code Access A security code may be requested Press the R key to change the digit Use the L key to inc...

Page 34: ...o 8 minutes during calibration to allow the gas value to stabilise Section 4 4 1 Section 4 4 2 Section 4 4 3 Section 4 4 4 Section 4 4 5 Zero Set Test Gas Span System Information Display Setup Alert S...

Page 35: ...P5536 1600 rev A 35 4 4 1 Calibrate Connect a Gas Test Kit equipped with both clean air and the appropriate test gas canisters Calibrate Zero Follow the prompt bar and screen instructions Go to Span S...

Page 36: ...v A Calibrate Span using aTest Gas of EXPECTED value Follow the prompt bar and screen instructions Key Done and return to the Main Display Press L and R together to quit and return to the main display...

Page 37: ...FERENT value The display will show the concentration of Span Gas that is EXPECTED to be used Set the expected value to agree with the actual Test Gas value Follow the prompt bar and screen instruction...

Page 38: ...e sensor can be setup or reviewed from a choice of parameters System Information Display Display Setup The display backlight illumination may be set to on or off to reduce power consumption TX6351 onl...

Page 39: ...integral GENERAL and HIGH visual alarms can be set to ON or OFF The confidence condition flash can be set to ON or OFF Set Security Code A four digit security code can be entered to prevent unauthori...

Page 40: ...m acceptance Trim Output Zero The level of the transmitted output signal when the sensor is measuring a Zero gas concentration can be trimmed or offset Trim Output Span The level of the transmitted ou...

Page 41: ...n the menu on the Contact Output version only The operating function of each relay can be independently setup Checkpoint The general relay function will be reversed when monitoring oxygen deficiency i...

Page 42: ...42 P5536 1600 rev A To Reset a Latched Relay Press L to view Relay Status Checkpoint A Relay will stay LATCHED if the initiating signal has not receded www trolex com...

Page 43: ...600 1200 2400 4800 9600 14400 19200 28800 38400 57600 115200 TX On 0 to 99 ms TX Off 0 to 99 ms Duplex Half 4 4 5 Module Setup The functional characteristics of the Sentro eModule may be setup to pre...

Page 44: ...int The setpoint output signal data will also be available for transmission on the RS485 Modbus version of Sentro Checkpoint The Contact Output version of Sentro 1 is also equipped with two relays The...

Page 45: ...et to ON or OFF The accumulated STEL and TWA data can be reset to zero ready for the start of a new working period Checkpoint STEL OVER or TWA OVER will be displayed when limits are exceeded If the vi...

Page 46: ...46 P5536 1600 rev A 4 4 6 Support If you need technical support to operate this product or would like details of our after sales technical support packages contact service trolex com www trolex com...

Page 47: ...it of the sensing element The transmitted output signal from the sensor will be clamped at full scale to prevent ambiguous output data from being transmitted and will latch in this condition The pelli...

Page 48: ...sensor at pre determined intervals by injecting a test gas Gas Sensing Modules The Sentro eModules should be changed at regular intervals to ensure the accuracy of response Service history is logged w...

Page 49: ...ovement related to time level of exposure to gas and the nature of the environment so Trolex recommend that the sensors should be bump tested with a suitable test gas at regular intervals This should...

Page 50: ...0 to 100 of range SO2 in air CO2 Nitrogen 100 50 to 100 of range CO2 in air O2 Nitrogen 100 Clean air or 50 to 100 of range O2 in N2 Standard test gas canisters are available from our Product Support...

Page 51: ...nual P5536 1600 rev A 51 5 3 Maintenance and Calibration Log Order Reference TX Serial Number Date Purchased Gas Type Location Date Scheduled Check Fault Recalibrate Change Modules Return to Trolex Co...

Page 52: ...hic area where it is located The end of its useful life is to be determined by the owner operator of the equipment and not Trolex Ensure that the Sentro 1 is recycled by licenced waste contractors wit...

Page 53: ...in this publication please notify us at marketing trolex com No part of this document may be reproduced in any form or by any means electronic or mechanical including photocopying without express writ...

Page 54: ...Contact Details Trolex Ltd Newby Road Hazel Grove Stockport Cheshire SK7 5DY UK 44 0 161 483 1435 sales trolex com...

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