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Summary of Contents for Trolex Sentro 1
- Page 1 TX6351 TX6352 • Sentro 1 Universal Gas Detector www.trolex.com...
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Page 2: Table Of Contents
TX6351 • TX6352 User Manual TX6351 • TX6352 Sentro 1 Universal Gas Detector Contents Product Overview Setup and Calibration Operating Features Controls and Indicators Application Main Display Product Options Security Code Access Dimensions Main Menu Technical Information 4.4.1 Calibrate Electrical Details 4.4.2 Sentro 1 Setup... -
Page 3: Product Overview
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 P5536.1600 rev B www.trolex.com www.trolex.com P5536.1600 rev B... -
Page 4: Dimensions
• 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. P5536.1600 rev B www.trolex.com www.trolex.com P5536.1600 rev B... -
Page 5: Electrical Details
40 mA 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 P5536.1600 rev B www.trolex.com www.trolex.com P5536.1600 rev B... -
Page 6: Sentro Emodules
3/4 wire. Remote powered • The signals can operate the two GENERAL alarm and HIGH alarm relays on the 0.4 to 2 V analogue output CONTACT OUTPUT version of Sentro 1. Supply voltage: 10 to 14 V Min. line load:... - Page 7 30 ppm 30 ppm 30 ppm 5 ppm 0.5 ppm concentrations of gas. * Response times are tested by owing test gas using the calibration kit referred to in section 5.2 Maintenance. P5536.1600 rev B www.trolex.com www.trolex.com P5536.1600 rev B...
- Page 8 Periodic calibration of the gas sensor should be carried out whilst it is in service. For oxygen *Response time and carbon monoxide gas sensors Trolex recommends that this is carried out every 3 <30 secs <60 secs <30 secs <40 secs...
- Page 9 100% by volume. Checkpoint Not suitable for use with the TX6352 4 to 20 mA two wire, line powered version of TX6350 .243 .245 .242 .278.2 .278 .279 Sentro 1. Carbon Carbon Carbon Methane Methane Methane Dioxide Dioxide Dioxide...
- Page 10 Sentro Gas Detector, as are the conditions for impact the application. Copies of certifi cates are available from Trolex. protection and external fuse protection in the case of the infrared eModule.
- Page 11 14.4 V TX6351.01i.15 Not critical 1 WRT 2 Ci = 0, unless an rModule is connected to the Sentro 1, then TX9081.01i.15 2 WRT 3 Ci = 0.38 F plus the Ci of the external sensors connected to the 5 WRT 6 14.4 V...
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Page 12: Installation
Lower Explosive Limit (LEL). After this point, the output becomes non-linear and may erroneously indicate that the gas concentration is below the LEL. They should not be used in oxygen enriched or defi cient atmospheres. P5536.1600 rev B www.trolex.com www.trolex.com P5536.1600 rev B... -
Page 13: Tools And Test Equipment Required
Similarly, steam laden atmospheres and system. Training can be provided by qualifi ed Trolex application engineers. condensation can reduce the stability. -
Page 14: Connections
0 V conductor to power the sensor enabling operating distances up to 1,000 m. Alternatively, the sensor may be powered by a suitable power source close by. P5536.1600 rev B www.trolex.com www.trolex.com P5536.1600 rev B... -
Page 15: To 15 Hz Output Signal
Physical layer: RS485 3.4.4 Contact Output Signal Dual independent output contacts for remote Protocol: Trolex proprietary signalling and control. Setpoint values for GENERAL alarm and HIGH alarm are setup Connection mode: Modbus during manufacture to prescribed levels appropriate to the type of gas intended to be monitored;... -
Page 16: Connecting In Hazardous Areas
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. The installation must be in accordance with the Sentro certifi cation parameters. P5536.1600 rev B www.trolex.com www.trolex.com P5536.1600 rev B... -
Page 17: Main Display
TX6351 • TX6352 User Manual 4.2 Main Display Power On NEXT/FUNCTION SELECT/CHANGE Checkpoint Next/Function is the Left hand key Left hand key Left (L) and Select/Change is the Right hand key Right hand key Right (R). P5536.1600 rev B www.trolex.com www.trolex.com P5536.1600 rev B... -
Page 18: Security Code Access
Zero Set Test Gas Security Code Access Section 4.4.1 Span A security code may be requested: Sentro 1 Setup System Information Press the R key to change the digit Display Setup Section 4.4.2 Alert Setup Use the L key to increment the digits... -
Page 19: Calibrate
• Key Done and return • Key Done and return to the Main Display • Go to Span Press L and R together to quit and return to the main display. P5536.1600 rev B www.trolex.com www.trolex.com P5536.1600 rev B... -
Page 20: Sentro 1 Setup
TX6351 • TX6352 User Manual 4.4.2 Sentro 1 Setup Calibrate Span using a Test Gas of DIFFERENT value The display will show the concentration of Span Gas that is EXPECTED to be used. The basic functional characteristics of the sensor can be setup, or reviewed, from a Set the expected value to agree with choice of parameters. -
Page 21: Output Setup
Span can be trimmed or o set. Reset Output • Reset the Zero and Span output Reset the Zero and Span output signal levels to the original signal levels to the original default settings. 0000: Security protection OFF P5536.1600 rev B www.trolex.com www.trolex.com P5536.1600 rev B... - Page 22 Checkpoint The general relay function will be reversed when monitoring oxygen defi ciency (i.e. the relay will de-energise when the measured gas concentration recedes from the setpoint value). P5536.1600 rev B www.trolex.com www.trolex.com P5536.1600 rev B...
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Page 23: Modbus
• 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 functional characteristics of the Sentro eModule may be setup to preference. -
Page 24: Support
If you need technical support to operate this product, or would like details of our after • Toxic gas sensing Sentro eModules • Toxic gas sensing Sentro eModules sales technical support packages, contact service@trolex.com. are equipped to automatically calculate STEL and TWA limits in accordance... -
Page 25: Diagnostics And Maintenance
• Check that the gas concentration has receded, then reset the module the new module into the instrument and by removing it for 2 seconds. return the original for checking and calibration. P5536.1600 rev B www.trolex.com www.trolex.com P5536.1600 rev B... - Page 26 Trolex Product Support Department for an annual safety check. Test gas equipment may be ordered from Trolex using the order code: P5393.23. The kit is comprised of a 0.5 litre/min gas regulator, pipe-work and gassing hoods.
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Page 27: Maintenance And Calibration Log
5.4 Disposal 5.3 Maintenance and Calibration Log Part of the ethos of Trolex is sustainable design. Sentro 1 contains materials that can be recovered, recycled and reused. At the end of its useful life ensure that the Sentro 1 is recycled in accordance with local laws and bylaws for the geographic area Order Reference: TX where it is located. -
Page 28: Trademarks
TX6351 • TX6352 User Manual Trademarks © 2015 Trolex® Limited. Trolex is a registered trademark of Trolex Limited. The use of all trademarks in this document is acknowledged. Document History Revision Date 20 -11- 2014 20 - 01- 2015 11 - 12- 2015... - Page 29 Trolex Ltd. Newby Road, Hazel Grove, Stockport, Cheshire SK7 5DY, UK t: +44 (0)161 483 1435 e: Sales@trolex.com www.trolex.com www.trolex.com...
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