Trolex TX6377 User manual

TX6377-UM-EN-Rev01 1

2 TX6377-UM-EN-Rev01 www.trolex.com

TX6377 User Manual
TX6377-UM-EN-Rev01 3
TX6377 Sentry
Contents
1. Product Overview 5
1.1 Operating Features 5
1.2 Application 6
1.3 Product Options 6
1.4 Dimensions 7
1.4.1 TX6377 Sentry - Front View 7
1.4.2 TX6377 Sentry - Side View 8
1.5 Technical Information 9
1.6 Electrical Details 11
1.7 Sentro eModules Gas
Sensing Modules 12
1.8 Sentry Environmental
Monitoring 13
1.8.1 Internal Environmental
Monitoring 13
1.8.2 External Environmental
Monitoring 13
2. Certification 14
3. Contents of Sentry Package 15
3.1 TX6377 Version 15
3.2 TX6377.10 Version 16
4. Installing 17
4.1 Safety Precautions 17
4.2 Tools and Test Equipment
Required 17
4.3 Sentry Operation 18
4.4 Siting Recommendations 18
4.5 Sensor Management 18
5. Setup and Calibration 19
5.1 Controls and Indicators 19
5.1.1 Front View 19
5.1.2 Side View 20
5.1.3 Navigation 21
5.2 Start-up Screen 22
5.2.1 Base Screens 22
5.2.2 Detailed Sensor Input View 24
5.2.3 Mono View 25
5.2.4 Minmax View 26
5.2.5 Trend View 26
5.2.6 Log View 27
5.3 Sentry Security Barrier 27
6. Audio/Visual Alarm
References 28
7. First Level Maintenance,
Repair and Spares 29
7.1 Sentry Planned Preventative
Maintenance 29
7.1.1 Introduction 29
7.1.2 Tools and Materials 30
7.1.3 Sentry Parts and Accessories
- Check 32
7.1.4 Sentry - Check 33
7.1.5 Sentro eModules - Calibrate 36
7.1.6 Sentry - Bump Test 46
7.1.7 Sentry - Stow 47
7.1.8 Sentry Oxygen eModule
- Replace 48
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7.1.9 Sentry Carbon Monoxide
eModules - Replace 48
7.1.10 Sentry Carbon Dioxide/Methane
eModules - Replace 49
7.1.11 Sentry Rear Half Battery
Pack - Replace 50
7.1.12 Sentry Battery - Charge 51
7.2 Sentry - Repair 53
7.3 Sentry - Post Emergency
Event Overhaul 53
7.4 Maintenance Records 53
7.5 Maintenance Log 54
7.6 Disposal 55
7.7 Recommended Spares 56
8. Appendix A 57
8.1 The Sentry Quick Start Guide 57
9. Appendix B 61
9.1 Sentry eModule
Replacement Instructions 61
10. Appendix C 63
10.1 Service and Maintenance Kit
Details 63
10.1.1 Introduction 63
10.1.2 Minor Service Kit 64
10.1.3 Base Maintenance Kit 65
10.1.4 Interim Service Kit 67
10.1.5 Major Service Kit 67
11. Appendix D 68
11.1 Guidelines for Deployment
and Use of TX6377 Sentry in
Refuge Alternatives covered
by 30CFR Parts 7 & 75 68
11.1.1 Refuge Alternatives with
Airlocks 68
11.1.2 Refuge Alternatives without
Airlocks 70
Disclaimers 72
Trademarks 72
Document History 72
Contact Details 72
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TX6377 User Manual
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1. Product Overview
TX6377 Sentry (front view)
1.1 Operating Features
• Integrated, battery powered, transportable, environmental monitoring system
for use in confined spaces and refuge chambers
• Pre-calibrated plug-in Sentro eModules to continuously monitor four
atmospheric gases
• Carbon dioxide
• Carbon monoxide (separate low and high sensors)
• Methane
• Oxygen
• LCD screen
• Pre-configured built-in audio/visual alarms
• Heavy duty, impact resistant housing to IP65
• EMC compliant
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• Data logging on all five channels (carbon dioxide, carbon monoxide (low and
high), methane and oxygen
• Rechargeable, plug-in battery pack provides over 192 hours of operation
• Natural diffusion for internal sampling or manual gas pump manifold application
for external sampling
1.2 Application
The Sentry environmental monitoring system can be stored for long periods of time
in refuge chambers or confined spaces ready for immediate use if an emergency
event occurs. Plug-in pre-calibrated gas sensing eModules will then continuously
monitor a range of four atmospheric gases, operating a clear display of current and
historic accumulated data of all the measured gas concentrations. A waterproof
Navigation Keypad gives direct access to the information:
• Instantaneous gas concentration display
• Detail information display of each gas sensor
• Minimum and maximum readings reached
• Trend analysis
• 4000 points of data logging with time and date stamp
Inbuilt audio/visual alarms provide discrete alerts of gas concentration levels
exceeding factory configured thresholds. The Sentry is powered by a detachable
12 V dc rechargeable battery that will power the environmental monitoring system
for more than 192 hours. A manual gas pump operated gas manifold is temporarily
attached when specific measurement samples need to be taken from outside the
immediate area.
Sentry is housed in a robust shockproof housing and is dust and moisture proof up
to IP65 standards with integral EMC protection. Safety latches enable the front and
rear halves to be quickly disassembled for maintenance and ease of transport.
1.3 Product Options
Mining Ex:
TX6377
Supply Voltage:
12 V dc from built in battery pack
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TX6377-UM-EN-Rev01 7
1.4 Dimensions
1.4.1 TX6377 Sentry - Front View
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1.4.2 TX6377 Sentry - Side View
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1.5 Technical Information
Sensing module: • Plug-in, pre-calibrated Sentro eModules with
characterised compensation. Accommodation
for up to four modules.
Protection classification: • Housing IP65
• Gas port IP54
Operating temperature: • -10°C to 30°C (14 to 86°F)
Storage temperature: • -20°C to 40°C (-4 to 140°F)
Humidity: • 0 to 95% non-condensing
Pressure: • 700 to 1300 mbar
Housing material: • Reinforced polymer, anti-static, suitable for use
in hazardous areas. EMC compliant
Weight: • 15 kg (33 lb)
Alarm indicators: • High-brightness, area warning, flashing alarm
and audible alarm
Audible alarm: • Integral audible sounder 81 db at 300 mm
(12 inches)
• Mute function
Gas infusion: • Natural diffusion for refuge sampling
• Manual gas pump assisted gas manifold for
exterior sampling
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Display: • 128 x 64 pixels, graphic LCD screen with
backlight illumination
• Alarm indicators for all four sensor inputs
• Simultaneous readings of all sensor input levels
• Individual reading of all sensor input levels with
Min and Max data retention - not applicable to
carbon dioxide
• Graphic Trend display of individual sensor values
- not applicable to carbon dioxide
• Scrolling display of Logged data - not applicable
to carbon dioxide
Function programming: • Keycode security barrier - enabled by default
• One factory programmed setpoint alarm level
(Warning alarm), set for Over, for each sensor
input
• Two factory programmed setpoint alarm levels
(Warning alarm), set for - Over and Under for
oxygen sensor input only
• Factory programmed audio visual alarm
functions indicate Warning alarms
• Factory programmed discrete alarm for sensor
fault
• 24-hour clock and calendar
Data logging: • Automatic period logging
• Default log period of 90 secs - does not log
carbon dioxide readings
• 4000 readings per sensor with time, date and
alarm event report
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1.6 Electrical Details
Sentry
Supply voltage
12 V dc from built-in rechargeable sealed lead acid battery
pack
Supply current 200 mA (maximum loading)
Typical battery life 192 hours
Battery charge
time
48 hours
Sentry Charger
Supply voltage Universal 100 to 265 V ac 50/60 Hz
Output voltage 14.8 V dc 800 mA
Indicators
Red LED - fast charge
Green LED - float charge
Caution
Only charge the Sentry battery with the Sentry battery charger.
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1.7 Sentro eModules Gas Sensing
Modules
• Sentry is fitted with four plug-in pre-
calibrated gas sensing modules -
eModules. These are accessible when
the front cover of the Sentry is removed.
• Each Sentro eModule stores all
the necessary data about its type,
identification, sensing range and specific
calibration. This data is automatically
recognised by Sentry when the eModule
is loaded into the module bay
• The Sentro eModules are pre-calibrated
so can be substituted at any time by a
replacement eModule
• Insert coding stops ensure the correct
Sentro eModule can only be fitted in the
correct location
• The Sentro eModule will identify itself
when plugged into its specific location
and auto configuration will take place
• All Sentro eModules have a Warning
alarm level. Default values are entered
during manufacture
• A separate Fault signal will also
be generated if a sensor electrical
failure is detected or in the event of a
communication failure
Sentro eModule
Integral Gas Sensor
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1.8 Sentry Environment Monitoring
1.8.1 Internal Environment Monitoring
1.8.2 External Environment Monitoring
Sample monitoring for external sample using a gas manifold, manual gas pump,
flow indicator and gas sample hoses.
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2. Certification
1. United States of America (MSHA)
IS Approval (Title 30 CFR Part 18) - Approval no. 18-A140004-0
Refuge Alternative Air Monitoring Component Approval (Title 30 CFR
Section 7.507) – Approval No. LPA140001-0
Specific Conditions of Use
1. The battery is to be charged in fresh air only.
2. The Panasonic CR2032 lithium cell is not user-replaceable.
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3. Contents of Sentry
Package
After receiving your Sentry you must check
it is complete.
3.1 TX6377 Version
If you have ordered TX6377 check these
items are present:
1. Sentry - assembled, comprising:
• Front half with gas manifold and a set of
eModules installed
• Rear half battery pack complete with
Quick Start Guide attached
• Base plate
Checkpoint
The Sentry On/Off switch is protected in
transit by a yellow plastic cap. Remove and
discard the yellow plastic cap on receipt of
your Sentry.
2. Gas sample kit, comprising:
• Gas sample hoses
• Flow indicator
• Manual gas pump
3. Sentry User Manual - TX6377-UM-EN.
Checkpoint
If any items are missing or damaged
contact your local Trolex service agent.
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3.2 TX6377.10 Version
If you have ordered TX6377.10 check these
items are present:
1. Sentry front half with gas manifold and a
set of eModules installed.
Checkpoint
The Sentry On/Off switch is protected in
transit by a yellow plastic cap. Remove and
discard the yellow plastic cap on receipt of
your Sentry.
2. Sentry User Manual - TX6377-UM-EN.
Checkpoint
If any items are missing or damaged
contact your local Trolex service agent.
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4. Installing
4.1 Safety Precautions
Hazardous Areas
DO NOT use a Sentry that has a damaged housing in the hazardous area.
Operating Life of Gas Sensors
Oxygen sensing cells must be replaced every eighteen months. Carbon monoxide,
carbon dioxide and methane sensing cells must be replaced every three years.
Sensitivity
Electrochemical cells for carbon monoxide will also respond to certain cross-
interfering gases, notably hydrogen and ethylene, but at lower levels.
Flammable
Be aware that some toxic gases are also ‘flammable’ at high percentage
concentrations.
Discrimination
Infrared sensors are highly specific to the defined gas type and may NOT respond
to other similar gases.
Toxicity
Be aware that most flammable gases and vapours are also toxic at low
concentrations of LEL.
4.2 Tools andTest Equipment Required
No special tools or test equipment are needed.
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4.3 Sentry Operation
Operation of the Sentry is described in the Sentry Quick Start Guide
TX6377-QS-EN, a copy of it is attached to the Sentry rear half battery pack.
4.4 Siting Recommendations
The installation needs to be considered in its own right, with reference to safety
authorities and in compliance with mandatory local safety regulations. The Sentry
must be operated in accordance with the User Manual and Quick Start Guide
TX6377-QS-EN to maintain safety, reliability and to preserve safety integrity where
applicable.
It is important that the Sentry is located in positions determined in consultation
with those who have specialised knowledge of the installation and of the principles
of gas dispersion.
4.5 Sensor Management
A very important part of the Sentry environmental monitoring system is the training
of personnel in the operation and maintenance of the sensing eModules and the
complete environmental monitoring system. Training can be provided by your local
Trolex service agent.
Once a Sentry installation is complete, the Sentry rear half battery pack and
eModule details should be formally recorded and a planned test and maintenance
procedure instituted for pending replacement.
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5. Setup and Calibration
5.1 Controls and Indicators
5.1.1 Front View
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5.1.2 Side View
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