Trolex TX6353 User manual
TX6353 User Manual
TX6353-UM-EN-01 Draft r 3
TX6353 SentrO P
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 10
1.7.1 Sentro eModules 11
2. Certification 14
2.1 Pennsylvania State 14
2.2 MSHA 14
3. Installing 16
3.1 Safety Precautions 16
3.2 Tools and Test
Equipment Required 17
3.3 Siting Recommendations 18
3.4 Connections 19
3.4.1 RS485 Data Output Signal 19
3.4.2 Auxiliary Output Signal 19
4. Setup and Calibration 20
4.1 Controls and Indicators 20
4.2 Main Display 22
4.3 Function Menus 23
4.4 Setup and Calibrate 24
4.4.1 Start-up Screen 24
4.4.2 Main Display 24
4.4.3 Main Menu 24
4.4.4 Calibrate 25
4.4.5 TX6353 Setup 28
4.4.6 Output Setup 39
4.4.7 Module Setup 43
4.4.8 Exit 45
4.5 Support 45
5. Diagnostics and
Maintenance 46
5.1 Diagnostic Messages 46
5.2 Maintenance 47
5.2.1 Introduction 47
5.2.2 SentrO P Gas Inlet Port -
Check and Clean 48
5.2.3 SentrO P - Bump Test 48
5.2.4 Sentro eModules - Calibrate 48
5.2.5 SentrO P - Safety Check 49
5.2.6 Sentro eModules - Replace 49
5.3 Recommended Test Gas
Concentrations 51
5.4 Disposal 52
5.5 Maintenance Records 53
5.6 Maintenance Log 53
Disclaimers 54
Trademarks 54
Contact Details 54
Document History 54
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4 TX6353-UM-EN-01 Draft r
1. Product Overview
TX6353.03 SentrO P Open Protocol gas detector
12 V dc - intrinsically safe Mining and Tunnelling
TX6353.04 SentrO P Open Protocol gas detector
24 V dc - General Purpose
1.1 Operating Features
• High accuracy gas detector with serial data output configured for open network
integration, on newly installed or existing data networks
• Pre-calibrated plug-in gas sensing eModule can be replaced in seconds for ease
of calibration and maintenance
• Large backlit LCD screen provides concise menu driven calibration guide and
sensor diagnostics
• Two inbuilt LED alarm indicators for General and High alarm with programmable
setpoints
• Auxiliary analogue output signal to drive a local audio visual alarm unit when
required
• Power supply voltage level data is transmitted over the RS485 Modbus for
constant monitoring
• Certified intrinsically safe for 12 V dc operating areas
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TX6353 User Manual
TX6353-UM-EN-01 Draft r 5
1.2 Application
Fixed point gas detection for safety monitoring in hazardous areas and general
purpose applications; for applications on data communication networks.
Intrinsically Safe:
TX6353.03
Supply Voltage:
12 V dc from an approved intrinsically
safe power source
General Purpose:
TX6353.04
Supply Voltage:
24 V dc
1.3 Product Options
TX6353 SentrO P Intrinsically
Safe Mining and
Tunnelling Ex
General Purpose
12 V dc TX6353.03 -
24 V dc -TX6353.04
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6 TX6353-UM-EN-01 Draft r
1.4 Dimensions
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TX6353 User Manual
TX6353-UM-EN-01 Draft r 7
1.5 Technical Information
TX6353.03
Intrinsically Safe Mining
and Tunnelling Ex
TX6353.04
General Purpose
Supply voltage 12 V dc 24 V dc
Supply voltage range 7.5 to 14.4 V dc 7.5 to 28 V dc
Current consumption
electrochemical cell 20 mA
pellistor cell 55 mA
electrochemical cell 15 mA
pellistor cell 30 mA
Current consumption
with backlight
electrochemical cell 25 mA
pellistor cell 60 mA
electrochemical cell 20 mA
pellistor cell 35 mA
Output signal RS485 Modbus
Auxiliary alarm output
signal
0.4 to 2.0 V analogue output signal proportional to
the measured gas concentration value, for powering
a suitable local audio visual alarm unit
Gases detected Carbon monoxide at 0 to 50 ppm
Hydrogen sulphide at 0 to 50 ppm
Methane at 0 to 4% v/v
Nitric oxide at 0 to 50 ppm
Nitrogen dioxide at 0 to 20 ppm
Oxygen at 0 to 25% v/v
eModule working life Minimum 2 years, dependent upon eModule type
and monitoring conditions
1
2
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8 TX6353-UM-EN-01 Draft r
Operating temperature
range
-10 to +40°C
Storage temperature -20 to +60°C
Humidity 90% non-condensing
Housing materials Reinforced polymer. EMC protected and proof
against surface electrostatic charge
Protection classification Housing dust and waterproof to IP65
Gas port protected to IP54
Weight 550 g
Mounting Two 6.5 mm diameter fixing holes with Unistrut
6946 indents
Cable entries 2 x M20
Electrical connections 4 mm barrier/clamp terminals with circuit
segregation barriers
Conductors A maximum of two per terminal
Conductor size A maximum of 2 x 2.5 mm²
Terminal torque 2.4 Nm maximum
Information display 128 x 65 dot graphic LCD screen (Backlit)
Vibration limits (EN 61779)
10 to 200 Hz, 7g peak
Impact limits 20 joules (housing)
Calibration and setup
Digitally controlled Zero and Span pushbutton setting
Signal fix The transmitted 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 communication between sensing
eModule and transmitter
• Critical reduction in sensor sensitivity
• Sensor over-range protection
Alarms Inbuilt adjustable visual alarm LEDs for General and
High alarms. Programmable setpoints and options
selectable from the setup menus
3
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1.6 Electrical Details
TX6353.03 TX6353.04
Output signal RS485
Supply voltage 7.5 to 14.4 V dc 7.5 to 28 V dc
Supply current no backlight:
electrochemical sensor
pellistor sensor
20 mA
55 mA
15 mA
30 mA
RS485 protocol Modbus to system requirements
Auxiliary Output for Powering a Local Audio Visual Alarm
Output signal 0.4 to 2 V for the measured gas concentration
Minimum line load 10 Kohm
Power for the audio visual alarm can be supplied from the sensor
Checkpoint
The TX6353 12 V dc version of the sensor is certified intrinsically safe and may
be located in the hazardous area when used in conjunction with approved
intrinsically safe apparatus.
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10 TX6353-UM-EN-01 Draft r
1.7 Sentro eModules
Plug-in pre-calibrated eModules with standardised output data.
• Each eModule stores all the necessary data about its type identification, sensing
range and specific calibration. This data is automatically recognised by SentrO P
when the eModule is loaded into the module bay.
• The eModules are pre-calibrated so can be substituted at any time by a
replacement eModule – usually of the same type, but an alternative may be
inserted if required.
• The sensing eModule will identify itself when plugged into the sensor housing
and auto configuration will take place.
• All Sentro eModules 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 General and High alarm signals illuminate built-in flashing LED indicators
located at the right hand side of the LCD screen window.
Sentro eModule
Gas Sensor
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