Trolex TX6356 User manual

TX6356 User Manual
TX6356-UM-EN-01 3
TX6356 Sentro Humidity Sensor
Contents
1. Product Overview 4
1.1 Operating Features 5
1.2 Application 5
1.3 Product Options 5
1.4 Dimensions 6
1.5 Technical Information 7
1.6 Electrical Details 8
1.7 Sentro Module 9
2. Certification 10
2.1 Australia 10
3. Installation 12
3.1 Safety Precautions 12
3.2 Tools and Test
Equipment Required 12
3.3 Siting Recommendations 12
3.4 Connections 13
3.4.1 0.4 to 2 V Analogue Output
Signal 13
3.4.2 4 to 20 mA Analogue Output
Signal 13
3.4.3 5 to 15 Hz Output Signal 14
3.4.4 Dual Relay Contact 14
3.4.5 RS485 Data Output Signal 14
4. Setup and Calibration 16
4.1 Controls and Indicators 16
4.2 Software Menus 18
4.3 Navigation 19
4.4 Power-up 20
4.5 Main Menu 21
4.5.1 Sentro Setup 22
4.5.2 Output Setup 27
4.5.3 Module Setup 38
4.5.4 Exit 45
4.6 Support 45
5. Operation 46
5.1 Dual Relay Contact Output
Signal 46
5.1.1 To Reset a Latched Relay 46
6. Diagnostics and
Maintenance 48
6.1 Diagnostic Messages 48
6.2 Maintenance 48
6.2.1 Introduction 48
6.2.2 Sentro Humidity Sensor
- Check 49
6.2.3 Sentro Humidity Sensor
- Clean 50
6.2.4 Sentro Humidity Sensor
Output Signal - Check 50
6.2.5 Sentro Humidity Sensor
- Function Test 51
6.3 Disposal 51
6.4 Maintenance Records 52
6.5 Maintenance and
Calibration Log 53
Disclaimers 54
Trademarks 54
Contact Details 54
Document History 54
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4 TX6356-UM-EN-01
1. Product Overview
TX6356.06.
01/02/03/04/
05/06
Sentro Humidity Sensor with bottom projecting sensor head.
For safety monitoring of humidity, in heavy duty applications.
12 V dc - intrinsically safe - Group 1 Underground Mining
TX6356.00.
01/04/05/06
Sentro Humidity Sensor with bottom projecting sensor head.
For safety monitoring of humidity, in heavy duty applications.
24 V dc - General Purpose
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TX6356-UM-EN-01 5
1.1 Operating Features
• High accuracy humidity sensor with calibrated input sensing modules
• Choice of output signals:
- 0.4 to 2 V analogue
- 4 to 20 mA analogue
- 5 to 15 Hz analogue
- RS485 addressable Modbus datacomms
- Dual relay contacts
• Large backlit LCD screen provides clear sensor information and diagnostic data
• Two programmable setpoints for inbuilt visual alarms
• Easy access terminal chamber with large, vibration secure, terminals for
connecting heavy plant cables
• Sensing range: 10 to 90% RH non-condensing
• Sensing accuracy: +/- 5%
1.2 Application
Fixed point humidity sensor for safety monitoring of humidity in heavy-duty
applications. Suitable for use in mining, storage areas, process plants, utilities and
oil & gas.
1.3 Product Options
Bottom Projecting Sensor
Output
Order Reference
Group 1 Underground
Mining Ex ia
General Purpose
4 to 20 mA output TX6356.06.01 TX6356.00.01
0.4 to 2 V output TX6356.06.02 N/A
5 to 15 Hz output TX6356.06.03 N/A
RS485 output TX6356.06.04 TX6356.00.04
Dual relay contacts -
normally closed
TX6356.06.05 TX6356.00.05
Dual relay contacts -
normally open
TX6356.06.06 TX6356.00.06
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6 TX6356-UM-EN-01
1.4 Dimensions
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1.5 Technical Information
Humidity sensing range 10 to 90% non-condensing
Accuracy +/- 5%
Linearity ±2% FS
Operating temperature
range
-20 to +40°C
Storage temperature limits -20 to + 60°C
Protection classification Housing - dust and waterproof to IP65
Sensor head - protected to IP54
Housing material Reinforced polymer
Sensor housing material Polycarbonate
Nett weight 750 g
Information display 128 x 64 dot graphic backlit LCD screen
Mounting Two 6.5 mm diameter fixing holes with Unistrut
6946 indents
Cable entries 1 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
Vibration limits Vibration limits (EN 60079-29-1):
• 10 to 30 Hz - 1.00 mm total excursion
• 31 to 150 Hz - 19.6 m/s2acceleration peak
Impact limits 20 joules (housing)
Output Signals • 0.4 to 2 V
• 4 to 20 mA
• 5 to 15 Hz
• Dual relay contacts (normally open OR
normally closed)
• RS485 data
Alarms Programmable General and High alarm levels
with LED indicators
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8 TX6356-UM-EN-01
Menu configuration • Security code protection
• Setpoint level and mode adjustment
• Data output protocol configuration
• Flow units selection
• Duty display text entry
Fault indication • Loss of communications
• Sensing module absent
• Sensor over-range
1.6 Electrical Details
0.4 to 2 V Output Signal - 3/4 wire - remote powered
Supply voltage Group 1 10 to 14 V dc
Minimum line load Group 1 10 K ohms
Supply current Group 1 20 mA @ 12 V dc
4 to 20 mA Output Signal - 3/4 wire - remote powered
Supply voltage Group 1 10 to 14 V dc
General Purpose 18 to 28 V dc
Maximum line load Group 1 220 ohm at 12 V dc
General Purpose 500 ohm at 24 V dc
Supply current Group 1 48 mA @ 12 V dc
General Purpose 40 mA @ 24 V dc
5 to 15 Hz Output Signal - 3/4 wire - remote powered
Supply voltage Group 1 10 to 14 V dc
Maximum line load Group 1 Opto isolated to 2 mA
maximum
Supply current Group 1 20 mA @ 12 V dc
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Dual Relay Contacts
Supply voltage Group 1 10 to 14 V dc
General Purpose 20 to 28 V dc
Contact rating Group 1 5 A at 230 V dc
General Purpose 5 A at 230 V dc
Supply current Group 1 60 mA
General Purpose 35 mA
RS485 Data Output
Supply voltage Group 1 10 to 14 V dc
General Purpose 14 to 28 V dc
Data protocol Group 1 and
General Purpose
RS485 Modbus
Supply current Group 1 25 mA
General Purpose 40 mA
1.7 Sentro Module
Plug-in pre-calibrated sensing module with standardised output data.
• The sensing module stores all the necessary data about its type identification,
sensing range and specific calibration. This data is automatically recognised by
the Sentro when the sensing module is loaded into the module bay
• The sensing modules are pre-calibrated so they can be replaced at any time by
a replacement sensing module
• The sensing module will identify itself when plugged into the sensor housing
and auto configuration will take place
• All Sentro sensing 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 two alarm signals can be set to illuminate built-in flashing LED indicators
• The two alarm signals can be set to operate the General alarm and High alarm
relays on the Dual Relay Contact version of the Sentro.
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10 TX6356-UM-EN-01
2. Certification
2.1 Australia
Ex certified for use in underground mines: TX6356.06.xx
Ex Certificate Number: IECEx ITA 14.0006X
Ex ia I Ma (-20°C ≤ Ta ≤ + 40°C)
Conditions of Safe Use
The following safety parameters are applicable to the Sentro 1 TX6356 Humidity
Sensor/Transmitter.
Input Parameters
Model
Field Screw
Terminals
Ui li Ci Li Pi
TX6356.06.01
(4 to 20 mA)
5 WRT 6 14.4 V * 1 0 0 -
1 WRT (2 or 3) - - - - -
TX6356.06.02
(0.4 to 2 V)
5 WRT 6 14.4 V * 1 0 0 -
1 WRT (2 or 3) - - - - -
TX6356.06.03
(5 to 15 Hz)
5 WRT 6 14.4 V * 1 0 0 -
1 WRT 2 16.5 V - 0 0 2.5 W
TX6356.06.04
(RS485)
5 WRT 6 14.4 V * 1 0 0 -
1 WRT 2
2 WRT 3
6.88 V * 1 0 0 -
TX6356.06.05
(dual relay
normally closed)
5 WRT 6 14.4 V * 1 0 0 -
1 WRT 2 30 V * 1 0 0 -
3 WRT 4 30 V * 1 0 0 -
TX6356.06.06
(dual relay
normally open)
5 WRT 6 14.4 V * 1 0 0 -
1 WRT 2 30 V * 1 0 0 -
3 WRT 4 30 V * 1 0 0 -
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Output Parameters
Model
Field Screw
Terminals
Uo lo Po Co Lo * 2
TX6356.06.01
(4 to 20 mA)
5 WRT 6 -----
1 WRT (2 or 3) 14.4 V 477 mA 1.72 W * 3 2.1 mH
TX6356.06.02
(0.4 to 2 V)
5 WRT 6 -----
1 WRT (2 or 3) 14.4 V 40 mA 135 mW * 3 292 mH
TX6356.06.03
(5 to 15 Hz)
5 WRT 6 -----
1 WRT 2 00000
TX6356.06.04
(RS485)
5 WRT 6 -----
1 WRT 2
2 WRT 3
5.88 V 66 mA 97 mW * 3 26 mH
TX6356.06.05
(dual relay
normally closed)
5 WRT 6 -----
1 WRT 2 00000
3 WRT 4 00000
TX6356.06.06
(dual relay
normally open)
5 WRT 6 -----
1 WRT 2 00000
3 WRT 4 00000
* 1 Ii Not critical
* 2 Lo Is calculated using the formula ½Lo (Io*1.5)2= 525 uJ.
* 3 Co Co = 1 uF, unless the conditions stated in 60079-11 2011,
Clause 10.1.5.2 part b can be satisfied.
WRT With Respect To
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3. Installation
3.1 Safety Precautions
Hazardous areas
Do not disassemble the humidity sensor whilst in the hazardous area or use a
sensor that has a damaged housing in the hazardous area.
3.2. Tools andTest Equipment Required
No special tools are needed.
3.3. Siting Recommendations
Location of Humidity Sensors
Each installation needs to be considered in its own right, with reference to safety
authorities and in compliance with mandatory local safety regulations. The sensor
must be operated in accordance with the User Manual to maintain safety, reliability
and to preserve safety integrity where applicable.
It is important that sensors are located in positions determined in consultation
with those who have specialised knowledge of the plant or installation and of the
principles of humidity. Reference should also be made to those responsible for the
engineering layout and topology of the plant as they will be most familiar with the
nature of the potential dangers and the most likely sources of high humidity.
Sensor coverage cannot be simply expressed in terms of ‘number per unit area’.
Sensors need to be sited where they are capable of monitoring those parts of a
plant where humidity may accumulate or where a source of humidity is expected
to occur. This way, the earliest possible warning of humidity can be given to initiate
shutdown functions, alarm functions or safe evacuation of the premises.
Sensor Management
A very important part of an efficient humidity monitoring system is the training of
plant personnel in operation and maintenance of the sensors and the complete
monitoring system. Training can be provided by qualified Trolex application
engineers.
Once a sensor installation is complete, the sensor locations and types should be
formally recorded and a planned test and maintenance procedure instituted.
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TX6356-UM-EN-01 13
3.4 Connections
3.4.1 0.4 to 2 V Analogue Output
Signal
The output signal from terminals 1 and 2 is a
low impedance two-wire voltage output. Can
be configured as 3 or 4 wire.
3.4.2 4 to 20 mA Analogue Output
Signal
The output signal from terminals 1 and 2 is
a conventional 4 to 20 mA two wire current
regulated signal loop. Can be configured as 3
or 4 wire.
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14 TX6356-UM-EN-01
3.4.3 5 to 15 Hz Output Signal
A square wave, frequency variable output
that is proportional to the measured value.
A pull up resistor may be required at the
monitoring device.
3.4.4 Dual Relay Contact
Dual independent relay contacts for remote
signalling and control. Setpoint values for
General and High alarms may be adjusted to
preference.
3.4.5 RS485 Data Output Signal
RS485 serial data output with analogue
signal intelligence.
Use in conjunction with a PC for data display
and setpoint alarm warnings.
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Up to 32 sensors acting as slaves can
communicate with the master unit on 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 distance: 1,000 m
Recommended cable (specified in BS5308
Part 1) for locally powered sensors:
• 1 twisted pair
• 0.5 mm2
• Overall screen
Recommended cable for sensors that are
powered through the data cable:
• 2 twisted pair
• 0.5 mm2
• Individual/overall screen
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4. Setup and Calibration
4.1 Controls and Indicators
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4.2 Software Menus
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4.3 Navigation
NEXT SELECT/CHANGE
Checkpoint
To use the Sentro Humidity Sensor software and navigate between menus you
must press the Setup Buttons:
Next is the Left button - L
Select/Change is the Right button - R.
The use of these buttons is abbreviated to Land Rthroughout this User Manual.
To access the L(Next) and R(Select/Change) buttons you need to remove the
front cover. Use a cross head screwdriver to remove the four screws securing the
front cover and move it out of the way.
Checkpoint
The Sentro Humidity Sensor is factory configured with the Security Code unset.
If a Security Code has been subsequently set it will need to be successfully
entered before the menus can be accessed.
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4.4 Power-up
When the Sentro Humidity Sensor is powered-up the Start-up Screen will
appear. The Start-up Screen displays basic information about the system including
the software version, driver version and output type.
Power On
After five seconds the Main Display will appear. The Main Display displays the
current humidity level.
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