TX6400 User Manual TX6400 Sentrum Contents Principle of Operation 3.6.2 Certification and Conformity Application Installation Main Enclosure System Overview Transport Pipe Preparation 2.1.1 Gas Detection Gas Monitoring System 2.1.2 Flow Monitoring Flow Monitoring System 2.1.3 Control and Data Collection Power Supply 2.1.4 Sentrum System Block Diagram 8...
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TX6400 Sentrum Contents Operation and Maintenance 26 Monitoring Accuracy Water Filter Pump Maintenance Modbus Address Registers TX9042 Display Formats Disclaimers Trademarks Contact Details Document History TX6400-UM-EN Rev A www.trolex.com...
The Trolex TX6400 Sentrum Monitoring System is designed to provide the complete solution for Methane Recovery Monitoring applications. Using proven technology, the TX6400 was developed to measure methane at source and at strategic points throughout the methane pipe network. TX6400-UM-EN Rev A...
Sensor recalibration will be required on a six monthly basis. Refer to the individual sensor User Manuals and Product Data Sheets for specific information on the sensors. TX6400-UM-EN Rev A www.trolex.com...
The infrared signature from the Trolex TX6363 head is compensated for temperature and pressure and the compensated signature level is sent to the controller system, where it is treated mathematically to extract the methane content of the mixture.
The TX9042 can also be set to locally data-log the various inputs. This information is stored locally in the TX9042 and can be accessed via the RS485 communications link. The TX9042 has a logging capacity of 22000 readings per channel. TX6400-UM-EN Rev A www.trolex.com...
Technical Details 3.1 TX6400 Sentrum Methane Recovery Monitoring System 3.1.1 Monitors: • Methane • Oxygen - optional • Carbon dioxide - optional • Gas velocity • Gas pressure • Gas temperature • System methane leakage 3.1.2 Specification: Gas temperature limits for gas -10°C to 44°C...
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TX6400 User Manual Example of a typical Sentrum system. TX6400-UM-EN Rev A www.trolex.com...
Intrinsically safe for use in Group I and Group II hazardous areas 3.2.2 Specification Sensing range: 0 to 100% vol methane Ambient temperature limits: -10°C to 44°C Maximum drift: ±0.05% /month Repeatability: ±0.1% Response time (T90): 20 secs Sensing element life: 2 years TX6400-UM-EN Rev A www.trolex.com...
TX6400 User Manual 3.3 TX6363 Infrared Carbon Dioxide Sensor 3.3.1 Features • Poison resistant infrared sensor • Pre-calibrated plug-in sensing module for convenient replacement and servicing • Integral sensors for improved temperature and pressure compensation • Intrinsically safe for use in Group I and Group II hazardous areas 3.3.2 Specification...
3.6.2 Certification and Conformity (N.B. This information only relates to the P5557 .11.xx Dual Pump Controller. For certification and conformity information about the other components of the TX6400 Sentrum, please refer to their specific user manuals.) TX6400-UM-EN Rev A www.trolex.com...
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TX6400 User Manual 3.6.2.1 European Union and International Certification ATEX (European Union) certification for use in underground mines Standards: EN 60079-0:2009 EN 60079-11:2007 EN 50303:2000 IECEx (International) certification for use in underground mines Standards: IEC 60079-0:2007-10 Edition 5 IEC 60079-11:2006 Edition 5...
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10.34 µF 10.34 µF 0 µH 0 µH Pump Motor 2 Connections: T11 w.r.t T12 (0V) 14.4 V 12.6 V 615 mA 549 m 2.22 W 1.73 W 10.34 µF 10.34 µF 0 µH 0 µH TX6400-UM-EN Rev A www.trolex.com...
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TX6400 User Manual 3.6.2.3 South Africa MASC certification for use in underground mines Standards: SANS (IEC) 60079-0:2009 SANS (IEC) 60079-11:2007 Underground mines Product Code: Ex Certificate Number: Ex Certification Code: Ex ia I Ma P5557 .11.05 M/11-221X -20 °C ≤ Ta ≤ +40 °C...
TX6400 User Manual 4.2 Transport Pipe Preparation Separate the two pipe flanges where the orifice plate is to be installed. Insert the orifice plate and bolt the two flanges and orifice plate together. Tighten as necessary. 2. Install the 2 x ¼” BSP threaded boss for methane sampling and fit one ¼”...
Connect two of the supplied hoses from the staple lock fittings on the side of the main enclosure marked Gas Sample In and Gas Sample Out, to the staple lock fittings on the transport pipe and secure using the supplied staples. TX6400-UM-EN Rev A www.trolex.com...
TX6400 User Manual 4.4 Flow Monitoring System Connect the supplied hoses to the two orifice plate fittings taking note of which is connected to Hi and which is connected to Lo. 2. Connect the free end of the hoses to the corresponding staple lock fitting on the side of the main enclosure.
This volume should be >1 lpm and <3 lpm when pump 1 is running. 8. Adjust the flow using the potentiometer on the dual pump controller to obtain a flow between 1 lpm and 3 lpm. TX6400-UM-EN Rev A www.trolex.com...
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TX6400 User Manual Checkpoint Never use the valve on the flow regulator to regulate flow when the system is using the intrinsically safe pumps to provide flow. 9. Switch pump 2 off and note that R4 LED on the Programmable Sensor Controller is lit.
TX6400 User Manual Use the Cursor to select a channel number, press the Confirm key and the display will change to show the following detailed information: Channel 1 Uncorrected methane concentration (%v/v) Channel 2 Gas velocity (l/s) Channel 3 Gas temperature (°C)
This information is used by the controller to calibrate the correction factors once the results of the analysis are available. 4. Information about the last sample taken can be viewed by selecting the View Sample option. TX6400-UM-EN Rev A www.trolex.com...
TX6400 User Manual 5.5 Updating the Analysis Values Once the results from the sample are available then the gas analysis values held in the controller should be updated. From the MDM Setup menu select Enter Analysis. 2. The user is offered the option to change the sample reading, but this is not normally required and should be skipped.
On. 6. The Calib CH1 parameter allows the user to calibrate channel 1. This is an advanced function used during commissioning and should not be adjusted by the user. Head Output is used during commissioning only. TX6400-UM-EN Rev A www.trolex.com...
TX6400 User Manual 5.7 Flow Monitoring When the system is securely mounted, checks need to be made to ensure the flow monitoring system is at zero when there is no flow in the transport pipe. Switch on the previously installed Hart Protocol Communicator (see section 5).
filter can be opened to let the water drain. 6. When the bowl is empty, close the tap. Reconnect the Gas Sample In pipe and open the tap. 8. Fully open the Flow Regulator Valve. 9. Switch sample pump on. TX6400-UM-EN Rev A www.trolex.com...
TX6400 User Manual Checkpoint There may be a small drop in methane purity readings due to the process of draining the filter. This is temporary and will clear in a few moments. 6.3 Pump Maintenance There are two pumps in the sampling system.
TX6400 User Manual TX9042 Display Formats Channel Inputs Channel: Description: Units: Hardware: Channel 1 Methane (uncorrected) 0 to 100% v/v 4 to 20 mA or 0.4 to 2 V Channel 2 Gas velocity 0 to 20 m/sec 4 to 20 mA Channel 3 Gas temperature -20 to +80°C...
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0 to 25% v/v Channel 5 Input Carbon dioxide 0 to 10% v/v Channel 6 Input Pure methane 0 to 100% v/v Result of methane correction algorithm (% vol methane) Flow switch Flow/No flow Channel 8 Input TX6400-UM-EN Rev A www.trolex.com...
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