MSA ALTAIR 4X Mining Multigas Detector Manual PDF

MSA ALTAIR 4X Mining Multigas Detector Manual PDF
ALTAIR® 4X MSHA
Multigas Detector
Instruction Manual
In North America, to contact your nearest stocking location, dial toll-free 1-800-MSA-2222
To contact MSA International, dial 724-776-8626 or 1-800-MSA-7777.
© MINE SAFETY APPLIANCES COMPANY 2014 - All Rights Reserved
This manual is available on the internet at www.msaSafety.com
Manufactured by
MSA NORTH AMERICA
1000 Cranberry Woods Drive
Cranberry Township, Pennsylvania 16066
(L) Rev 2
10128754
"! WARNING
THIS MANUAL MUST BE CAREFULLY READ BY ALL INDIVIDUALS WHO HAVE OR WILL
HAVE THE RESPONSIBILITY FOR USING OR SERVICING THE PRODUCT. Like any piece
of complex equipment, this instrument will perform as designed only if it is used and serviced in accordance with the manufacturer’s instructions. OTHERWISE, IT COULD FAIL TO
PERFORM AS DESIGNED AND PERSONS WHO RELY ON THIS PRODUCT FOR THEIR
SAFETY COULD SUSTAIN SEVERE PERSONAL INJURY OR DEATH.
The warranties made by Mine Safety Appliances Company with respect to the product are
voided if the product is not used and serviced in accordance with the instructions in this
manual. Please protect yourself and others by following them. We encourage our customers to write or call regarding this equipment prior to use or for any additional information relative to use or repairs.
1. Instrument Safety . . . . . . . . . . . . . . . . . . . .1-1
1.1. Correct Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
1.2. Safety and Precautionary Measures . . . . . . . . . . .1-3
Observe proper battery maintenance . . . . . . . . . . . . .1-5
Be aware of environmental conditions . . . . . . . . . . . . .1-5
Be aware of the procedures
for handling electrostatically sensitive electronics . . . .1-5
Be aware of the product regulations . . . . . . . . . . . . . .1-5
Be aware of the warranty regulations . . . . . . . . . . . . .1-5
1.3. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.3.1 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.3.2 Exclusive Remedy . . . . . . . . . . . . . . . . . . . . . . .1-6
1.3.3 Exclusion of Consequential Damage . . . . . . . .1-6
2. Description . . . . . . . . . . . . . . . . . . . . . . . . .2-1
2.1. Instrument Overview . . . . . . . . . . . . . . . . . . . . . . . .2-1
Figure 2-1. Instrument View . . . . . . . . . . . . . . . . . . .2-1
2.2 Device Hardware Interfaces . . . . . . . . . . . . . . . . . . .2-2
2.2.1 Button Definitions . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.2.2 LED Definitions . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.2.3 Vibrating Alarm . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.2.4 Backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.2.5 Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.2.6 On-Screen Indicators . . . . . . . . . . . . . . . . . . . . .2-4
Figure 2-2. Display and Graphic Symbols . . . . . . . .2-4
2.2.7 Battery Life Indicator . . . . . . . . . . . . . . . . . . . . . .2-5
Battery Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Battery Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Battery Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
To Charge the Instrument . . . . . . . . . . . . . . . . . . . . . .2-7
2.2.8 Operating Beep . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
2.3 Viewing Optional Displays . . . . . . . . . . . . . . . . . . . .2-7
2.3.1 Bump Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
2.3.2 Peak Readings (PEAK page) . . . . . . . . . . . . . . .2-8
2.3.3 Minimum Readings (MIN page) . . . . . . . . . . . . .2-8
2.3.4 Short Term Exposure Limits (STEL page) . . . . .2-8
STEL calculation examples: . . . . . . . . . . . . . . . . . . . .2-9
2.3.5 Time Weighted Average (TWA Page) . . . . . . . . .2-9
i
To Reset the TWA Readings . . . . . . . . . . . . . . . . . . . .2-9
TWA Calculation Examples: . . . . . . . . . . . . . . . . . . .2-10
2.3.6 Time Display . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
2.3.7 Date Display . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
2.3.8 Last Cal Page . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
2.3.9 Cal Due Page . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
2.3.10 Motion Alert Page . . . . . . . . . . . . . . . . . . . . . .2-10
2.4 Sensor Missing Alarm . . . . . . . . . . . . . . . . . . . . . . .2-11
2.5 Sensor Life Warning . . . . . . . . . . . . . . . . . . . . . . . .2-11
2.6 Sensor Life Indicator . . . . . . . . . . . . . . . . . . . . . . .2-11
2.7 Monitoring Toxic Gases . . . . . . . . . . . . . . . . . . . . .2-11
2.8 Monitoring Oxygen Concentration . . . . . . . . . . . . .2-12
2.9 Monitoring Combustible Gases . . . . . . . . . . . . . . .2-13
3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
3.1. Environmental Factors . . . . . . . . . . . . . . . . . . . . . .3-1
Pressure Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Humidity Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Temperature Changes . . . . . . . . . . . . . . . . . . . . . . . . .3-1
3.2. Turning ON and Fresh Air Setup . . . . . . . . . . . . . . .3-2
3.2.1 Screen Displays during Startup . . . . . . . . . . . . .3-3
Instrument Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Instrument Name and Software version . . . . . . . . . . .3-3
Combustible Gas Type . . . . . . . . . . . . . . . . . . . . . . . .3-3
Toxic Gas Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
Alarm Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
STEL and TWA Setpoints . . . . . . . . . . . . . . . . . . . . . .3-4
Calibration Values . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Time and Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Last CAL Date and CAL Due . . . . . . . . . . . . . . . . . . . .3-5
Fresh Air Setup (FAS) . . . . . . . . . . . . . . . . . . . . . . . . .3-5
3.2.2 Fresh Air Setup (FAS) . . . . . . . . . . . . . . . . . . . . .3-5
3.3. Measurement Mode (Normal Operation) . . . . . . . .3-6
Bump Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
Figure 3-1. Fresh Air Setup . . . . . . . . . . . . . . . . . . .3-6
Peak Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Min Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
STEL Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
ii
TWA Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Time / Date Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Motion Alert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
3.4 Instrument Setup . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
3.4.1 Sensor Setup . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9
Figure 3-2. Sensor Setup . . . . . . . . . . . . . . . . . . . . .3-9
3.4.2 Calibration Setup . . . . . . . . . . . . . . . . . . . . . . .3-10
3.4.3 Alarm Setup . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10
Figure 3-3. Calibration Setup . . . . . . . . . . . . . . . . .3-10
Figure 3-4. Alarm Setup . . . . . . . . . . . . . . . . . . . . .3-11
3.4.4 Setup Time and Date . . . . . . . . . . . . . . . . . . . .3-12
3.5 Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12
Connecting Instrument to PC . . . . . . . . . . . . . . . . . .3-12
Figure 3-5. Date and Time Setup . . . . . . . . . . . . .3-12
3.6 Function Tests on the Instrument . . . . . . . . . . . . . .3-13
Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13
3.7 Safe LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13
3.8 Calibration Check . . . . . . . . . . . . . . . . . . . . . . . . . .3-13
3.8.1 Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14
3.8.2 Performing a Calibration Check . . . . . . . . . . .3-14
3.9 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16
3.9.1 Fresh Air Setup and Zero Calibration . . . . . . . .3-16
3.9.2 Span Calibration . . . . . . . . . . . . . . . . . . . . . . . .3-17
3.9.3 Finishing Calibration . . . . . . . . . . . . . . . . . . . . .3-19
4. Maintenance . . . . . . . . . . . . . . . . . . . . . . . .4-1
4.1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
4.2 Live Maintenance Procedure - Replacing and
Adding a Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
4.3 Cleaning the Instrument . . . . . . . . . . . . . . . . . . . . . .4-5
4.4 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
4.5 Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
iii
5. Technical Specifications/Certifications . .5-1
5.1 Technical Specifications . . . . . . . . . . . . . . . . . . . . .5-1
5.2 Factory-set Alarm Thresholds and Setpoints . . . . . .5-2
5.3 Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Performance Specification . . . . . . . . . . . . . . . . . . . . . . .5-2
5.4.1 Combustible Gas . . . . . . . . . . . . . . . . . . . . . . . .5-2
5.4.2 Oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
5.4.3 Carbon Monoxide . . . . . . . . . . . . . . . . . . . . . . . .5-3
5.4.4 Hydrogen Sulfide . . . . . . . . . . . . . . . . . . . . . . . .5-4
5.4.5 Nitrogen Dioxide . . . . . . . . . . . . . . . . . . . . . . . . .5-4
5.5 XCell Sensor Patents . . . . . . . . . . . . . . . . . . . . . .5-5
®
6. Order Information
. . . . . . . . . . . . . . . . . . .6-1
7. Appendix – Flow Charts . . . . . . . . . . . . . . .7-1
7.1. Start Up Sequence (Power ON) . . . . . . . . . . . . . . .7-1
7.2 Fresh Air Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
7.3 Reset Screen Controls . . . . . . . . . . . . . . . . . . . . . . .7-3
7.4 Calibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
7.5 Options Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6
7.6 Sensor Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
7.7 Alarm Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
7.8 Time and Date Setup . . . . . . . . . . . . . . . . . . . . . . . .7-9
iv
1. Instrument Safety
1.1. Correct Use
The ALTAIR 4X Multigas Detector is for use by trained and qualified
personnel. It is designed to be used when performing a hazard
assessment to:
•
Assess potential worker exposure to combustible and toxic gases
and vapors as well as low level of oxygen.
•
Determine the appropriate gas and vapor monitoring needed for a
workplace.
The ALTAIR 4X Multigas Detector can be equipped to detect:
•
Combustible gases and certain combustible vapors
•
Oxygen-deficient or oxygen-rich atmospheres
•
Specific toxic gases for which a sensor is installed.
" WARNING
Read and follow all instructions carefully.
•
Perform a calibration check before each day's use and
adjust if necessary.
•
Perform a calibration check more frequently if exposed to
silicone, silicates, lead-containing compounds, hydrogen
sulfide, or high contaminant levels.
•
Recheck calibration if unit is subjected to physical shock.
•
Use only to detect gases/vapors for which a sensor is
installed.
•
Do not use to detect combustible dusts or mists.
•
Make sure adequate oxygen is present for accurate
combustible readings (>10% O2).
•
Do not block sensors.
•
Have a trained and qualified person interpret instrument
readings.
1-1
•
Do not recharge Li ION battery in a combustible
atmosphere.
•
Do not alter or modify instrument.
INCORRECT USE CAN CAUSE SERIOUS PERSONAL INJURY
OR DEATH.
NOTE: This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is
operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction
manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own
expense.
" WARNING
This is a class A product. In a domestic environment, this
product may cause radio interference in which case the user
may be required to take adequate measures.
1-2
1.2. Safety and Precautionary Measures
" WARNING
Carefully review the following safety limitations and
precautions before placing this instrument in service.
Incorrect use can cause serious personal injury or death.
•
Check function (see section 3.6) each day before use. MSA
recommends carrying out a routine inspection prior to each day's
use.
•
Perform a Calibration Check (see section 3.8) before each day's
use to verify proper instrument operation. The instrument must
pass the Calibration Check. If it fails the test, perform a calibration
(see section 3.9) before using the instrument.
•
Perform a Calibration Check more frequently if the unit is subjected
to physical shock or high levels of contaminants. Also, perform a
Calibration Check more frequently if the tested atmosphere
contains the following materials, which may desensitize the
combustible gas sensor and reduce its readings:
•
Organic silicones
•
Silicates
•
Lead-containing compounds
•
Hydrogen sulfide exposures over 200 ppm or exposures
over 50 ppm for one minute.
•
The minimum concentration of a combustible gas in air that can
ignite is defined as the Lower Explosive Limit (LEL). A combustible
gas reading of "XXX” indicates the atmosphere is above 100 %
LEL or 5.00 %vol CH4, and an explosion hazard exists. Move
away from hazardous area immediately.
•
Do not use the ALTAIR 4X Multigas Detector to test for combustible
or toxic gases in the following atmospheres as this may result in
erroneous readings:
• Oxygen-deficient or oxygen-rich atmospheres
• Reducing atmospheres
• Furnace stacks
• Inert environments
1-3
•
Do not use the ALTAIR 4X Multigas Detector to test for combustible
gases in atmospheres containing vapors from liquids with a high
flash point (above 38°C, 100°F) as this may result in erroneously
low readings.
•
Do not block sensor openings as this may cause inaccurate
readings. Do not press on the face of the sensors, as this may
damage them and cause erroneous readings. Do not use
compressed air to clean the sensor holes, as the pressure may
damage the sensors.
•
Allow sufficient time for unit to display accurate reading. Response
times vary based on the type of sensor being utilized (see Section
5.4, "Performance Specifications").
•
All instrument readings and information must be interpreted by
someone trained and qualified in interpreting instrument readings
in relation to the specific environment, industrial practice and
exposure limitations.
•
Use of the GalaxyTM or GALAXY GX2 Automated Test System is an
alternate MSHA-approved method for calibrating MSHA-approved
ALTAIR 4X instruments.
•
Use only calibration gas that is 2.5% Methane with an accuracy of
+5% when calibrating MSHA-approved ALTAIR 4X instruments.
•
The maximum acceptable user-set (password protected) Galaxy
Automated Test System tolerance on Bump Limits must be set to
10% or less when calibrating MSHA-approved ALTAIR 4X
instruments.
• GALAXY GX2 Automated Test System Test Setup Mode must be
set to Calibration Only or Calibration Check/Cal on Fail when
calibrating MSHA-approved ALTAIR 4X instruments.
• For 30 CFR Part 75 determinations, the maximum acceptable
user-set (password protected) Galaxy Automated Test System
tolerance on Bump Limits must only be set to such that 19.5%
oxygen can be detected with an accuracy of +0.5% when
calibrating MSHA-approved ALTAIR 4X instruments.
•
For 30 CFR Part 75 determinations, the Galaxy GX2 Automated
Test System Test Setup Mode must be set to Calibration Only or
Calibration Check/Cal on Fail so that 19.5% oxygen can be
detected with an accuracy of +0.5% when calibrating MSHAapproved ALTAIR 4X instruments.
Risk of explosion: Do not recharge instrument in hazardous area.
1-4
Observe proper battery maintenance
Use only battery chargers made available by MSA for use with this
instrument; other chargers may damage the battery pack and the unit.
Dispose of in accordance with local health and safety regulations. Use
of the Galaxy or GALAXY GX2 Automated Test System is an alternate
approved method for charging ALTAIR 4X instruments
Be aware of environmental conditions
A number of environmental factors may affect the sensor readings,
including changes in pressure, humidity and temperature.
Pressure and humidity changes also affect the amount of oxygen
actually present in the atmosphere.
Be aware of the procedures for handling electrostatically sensitive
electronics
The instrument contains electrostatically sensitive components. Do not
open or repair the unit without using appropriate electrostatic discharge
(ESD) protection. The warranty does not cover damage caused by
electrostatic discharges.
Be aware of the product regulations
Follow all relevant national regulations applicable in the country of use.
Be aware of the warranty regulations
The warranties made by Mine Safety Appliances Company with respect
to the product are voided if the product is not used and maintained in
accordance with the instructions in this manual. Please protect yourself
and others by following them. We encourage our customers to write or
call regarding this equipment prior to use or for any additional
information relative to use or service.
1.3. Warranty
ITEM
WARRANTY PERIOD
Chassis and electronics
Three years
All sensors unless otherwise specified
Three years
1.3.1 Warranty
This warranty does not cover filters, fuses, etc. Certain other
accessories not specifically listed here may have different warranty
periods. This warranty is valid only if the product is maintained and
used in accordance with Seller's instructions and/or recommendations.
1-5
The Seller shall be released from all obligations under this warranty in
the event repairs or modifications are made by persons other than its
own or authorized service personnel or if the warranty claim results from
physical abuse or misuse of the product. No agent, employee or
representative of the Seller has any authority to bind the Seller to any
affirmation, representation or warranty concerning this product. Seller
makes no warranty concerning components or accessories not
manufactured by the Seller, but will pass on to the Purchaser all
warranties of manufacturers of such components.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESSED, IMPLIED OR STATUTORY, AND IS STRICTLY LIMITED
TO THE TERMS HEREOF. SELLER SPECIFICALLY DISCLAIMS ANY
WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR A
PARTICULAR PURPOSE.
1.3.2 Exclusive Remedy
It is expressly agreed that Purchaser's sole and exclusive remedy for
breach of the above warranty, for any tortious conduct of Seller, or for
any other cause of action, shall be the replacement at Seller's option, of
any equipment or parts thereof, which after examination by Seller is
proven to be defective.
Replacement equipment and/or parts will be provided at no cost to
Purchaser, F.O.B. Seller's Plant. Failure of Seller to successfully replace
any nonconforming equipment or parts shall not cause the remedy
established hereby to fail of its essential purpose.
1.3.3 Exclusion of Consequential Damage
Purchaser specifically understands and agrees that under no
circumstances will seller be liable to purchaser for economic, special,
incidental or consequential damages or losses of any kind whatsoever,
including but not limited to, loss of anticipated profits and any other loss
caused by reason of nonoperation of the goods. This exclusion is
applicable to claims for breach of warranty, tortious conduct or any other
cause of action against seller.
1-6
2. Description
2.1. Instrument Overview
1
2
3
4
5
6
7
Communication
Safe LED (green) and Fault LED (yellow)
Sensor Inlets
Horn
▲ Button
▼ Button
Button
8
9
10
11
12
13
Display
Alarm LEDs (4)
Clip
Charging Connection
Screws (4)
Charge LED (red/green)
Figure 2-1. Instrument View
The instrument monitors gases in ambient air and in the workplace.
The ALTAIR 4X is available with a maximum of three sensors, which
can display readings for four separate gases (one Two Toxic Sensor
provides both CO and NO2 sensing capabilities in a single sensor).
The alarm levels for the individual gases are factory-set and can be
changed through the instrument Setup Menu. These changes can also
be made through MSA LinkTM Software. Ensure that the latest version of
the MSA Link software has been downloaded from MSA’s website
www.MSAsafety.com.
2-1
If gas is present during Fresh Air Setup, the instrument will fail and
enter Measure mode.
2.2 Device Hardware Interfaces
Instrument operation is dialog driven from the display with the aid of the
three function buttons (see FIGURE 2-1).
2.2.1 Button Definitions
BUTTON
DESCRIPTION
The
Button is used to turn instrument ON or OFF and to confirm
user action selections.
When the ▲ button and the
button are pressed simultaneously at
instrument start-up, the Options Setup mode displays.
▼
The ▼ Button is used to page down through data screens
in measuring mode or as a page back and to decrease the values in
Setup mode. Holding this button for 3 seconds while in Normal Measure
mode activates the InstantAlertTM alarm.
▲
The ▲ button is used to reset peak, STEL TWA and acknowledge alarms
(where possible) or access calibration in Measuring mode. It is also used
as page up or to increase the values in Setup mode.
2.2.2 LED Definitions
LED
DESCRIPTION
GREEN
The Safe LED flashes once every 15 seconds to notify the user that the
instrument is ON and operating under the conditions defined in Section
3.7. This option can be turned OFF through the MSA Link software
RED
The Alarm LEDs are visual indications of an alarm condition or any type
of error in the instrument
YELLOW
The yellow LED is a visual indication of an instrument fault condition.
This LED turns ON with the following conditions:
• Instrument memory error
• Sensor Missing
• Sensor Error
RED / GREEN
2-2
The Charge LED is a visual indication of charge status.
Red indicates the instrument is charging
Green indicates the charge is complete
2.2.3 Vibrating Alarm
The instrument is equipped with a vibrating alarm.
2.2.4 Backlight
The backlight automatically activates when any front panel button is
pressed and remains ON for the duration of user-selected timeout. This
ON/OFF duration can be changed through MSA Link software.
2.2.5 Horn
The horn provides an audible alarm.
2-3
2.2.6 On-Screen Indicators
1
2
3
Graphic Symbols
Gas Type
Gas Concentration
Alarm Symbol –
Indicates alarm state
No Gas Cylinder – Indicates cal
gas should not be applied and
instrument must be exposed to
fresh air
Bump Check Symbol –
Indicates successful bump
or cal
Hourglass –
Indicates user should wait
Indicates required interaction
Minimum – Indicates a minimum
value or low alarm
Battery Condition – Indicates
the battery charge level
PEAK Symbol – Indicates
a PEAK reading or high alarm
Sensor Labels
STEL Symbol –
Indicates a STEL alarm
Motion AlertTM – Indicates
Motion Alert is active
TWA Symbol –
Indicates a TWA alarm
Cal Gas Cylinder – Indicates
cal gas must be applied
End of Sensor Life
Warning/Indicator
Figure 2-2. Display and Graphic Symbols
2-4
2.2.7 Battery Life Indicator
The battery condition icon continuously displays in the upper right-hand
corner of the color display. As the battery is depleted, battery icon
segments blank until only the battery icon outline remains.
Each indicator segment represents approximately 25% of the total
battery capacity.
Battery Warning
" WARNING
If battery warning alarm activates while using the instrument, leave the area immediately as the end of battery life is
approaching.
Failure to follow this warning can result in serious personal
injury or death.
The nominal run-time of the instrument at room temperature is 34
hours. Actual run-time will vary depending on ambient temperature,
Alarm conditions, and age of battery. Instrument run-time at -4°F (20°C) is approximately 20 hours.
A Low Battery Warning indicates that a nominal 30 minutes of operation
remain before the battery’s charge is depleted.
The duration of remaining instrument operation during a Low Battery
Warning depends on ambient temperatures.
When the instrument goes into Low Battery Warning, the:
•
battery life indicator flashes
•
alarm sounds
•
alarm LEDs flash
•
display flashes "LOW BATT" and
•
instrument repeats this warning every 60 seconds and continues to
operate until it is turned OFF or battery shutdown occurs
2-5
Battery Shutdown
" WARNING
If the battery shutdown alarm activates, stop using the
instrument as it no longer has enough power to
indicate potential hazards, and persons relying on this product for their safety could sustain serious personal injury or
death.
The instrument goes into battery shutdown mode 60 seconds before
final shutdown (when the batteries can no longer operate the
instrument):
•
"BATT ALARM” and
flash on the display
•
Alarm sounds and lights flash; alarm cannot be silenced
•
No other pages can be viewed; after approximately one minute, the
instrument automatically turns OFF.
When battery shutdown condition occurs:
1. Leave the area immediately.
2. Recharge or replace the battery pack.
Battery Charging
" WARNING
Risk of explosion: Do not recharge instrument in hazardous
area.
" CAUTION
Use of any charger, other than the Charger supplied with the
instrument, may damage or improperly charge the batteries.
•
The charger is capable of charging a completely depleted pack in
less than four hours in normal, room-temperature environments.
NOTE: Allow very hot or cold instruments to stabilize for one hour
at room temperature before attempting to charge.
•
Minimum and maximum ambient temperature to charge the
instrument is 10°C (50°F) and 35°C (95°F), respectively.
•
For best results, charge the instrument at room temperature
(23°C).
2-6
To Charge the Instrument
• Firmly insert the charger connector into the charge port on the
back of the instrument.
•
The battery symbol
scrolls through a progressively
increasing number of segments and the charge LED is red until
90% of full charge is obtained. Then,
remains fully
illuminated and the charge LED turns green while the battery is
trickle charged to its full capacity.
•
If a problem is detected during charging, the battery symbol flashes
and the charge LED is orange. Disconnect the charger
momentarily to reset the charge cycle.
2.2.8 Operating Beep
This operating beep activates every 30 seconds by momentarily
beeping the horn and flashing the alarm LEDs under the following
conditions:
•
Operating beep is enabled
•
Instrument is on normal Measure Gases page
•
Instrument is not in battery warning
•
Instrument is not in gas alarm
•
Audible and visual options are enabled
2.3 Viewing Optional Displays
The Main Screen appears at instrument turn-ON.
Optional displays can be viewed by pressing the ▼ button to move to:
2.3.1 Bump Mode
To select the Bump mode, press the
button
To move forward, press the ▼ button.
To move backward to the Main page, press the ▲ button.
2-7
2.3.2 Peak Readings (PEAK page)
The peak icon
shows the highest levels of gas recorded by the
instrument since turn-ON or since peak readings were reset.
To reset the peak readings:
1. Access the PEAK page.
2. Press the ▲ button.
2.3.3 Minimum Readings (MIN page)
This page shows the lowest level of oxygen recorded by the instrument
since turn-ON or since the MIN reading was reset.
The minimum icon
appears on the display
To reset the MIN readings:
1. Access the MIN page.
2. Press the ▲ button.
2.3.4 Short Term Exposure Limits (STEL page)
" WARNING
If the STEL alarm activates, leave the contaminated area
immediately; the ambient gas concentration has reached the
preset STEL alarm level. Failure to follow this warning will
cause over-exposure to toxic gases and persons relying on
this product for their safety could sustain serious personal
injury or death.
The STEL icon
appears on the display to show the average
exposure over a 15-minute period.
When the amount of gas detected by the instrument is greater than the
STEL limit:
•
Alarm sounds
•
Alarm LEDs flash
•
STEL icon flashes.
To reset the STEL:
1. Access the STEL page.
2-8
2. Press the ▲ button.
The STEL alarm is calculated over a 15-minute exposure.
STEL calculation examples:
Assume the instrument has been running for at least 15 minutes:
•
15-minute exposure of 35 ppm:
(15 minutes x 35 PPM)
15 minutes
•
= 35 PPM
10-minute exposure of 35 ppm and
5 minute-exposure of 15 ppm:
(10 minutes x 35 PPM) + (5 minutes x 15 PPM)
= 25 PPM
15 minutes
This page can be de-activated through MSA Link.
2.3.5 Time Weighted Average (TWA Page)
" WARNING
If the TWA alarm activates, leave the contaminated area
immediately; the ambient gas concentration has reached the
preset TWA alarm level. Failure to follow this warning will
cause over-exposure to toxic gases and persons relying on
this product for their safety could sustain serious personal
injury or death.
The TWA icon
appears on the display to show the average exposure
since the instrument was turned ON or since the TWA reading was
reset. When the amount of gas detected is greater than the eight-hour
TWA limit:
•
alarm sounds
•
alarm lights flash
•
TWA icon flashes.
To Reset the TWA Readings
1. Access the TWA Page.
2. Press the
▲
button.
The TWA alarm is calculated over an eight-hour exposure.
2-9
TWA Calculation Examples:
•
1-hour exposure of 50 ppm:
(1 hour x 50 PPM) + (7 hours x 0 PPM)
8 hours
•
4-hour exposure of 50 ppm and
4-hour exposure of 100 ppm:
(4 hours x 50 PPM) + (4 hours x 100 PPM)
8 hours
•
= 6.25 PPM
= 75 PPM
12-hour exposure of 100 ppm:
(12 hours x 100 PPM)
8 hours
= 150 PPM
2.3.6 Time Display
Current time appears on the display in a 12-hour format by default.
A 24-hour format can be selected using MSA Link.
2.3.7 Date Display
Current date appears on the display in the format: MM-DD-YYYY.
2.3.8 Last Cal Page
Displays the instrument's last successful calibration date in the format:
MM-DD-YYYY.
2.3.9 Cal Due Page
Displays the days until the instrument's next calibration is due
(user selectable).
2.3.10 Motion Alert Page
To activate or deactivate the Motion Alert feature, press the ▲ button
while the Motion Alert Activation page is displayed. When the Motion
Alert feature is active, the r symbol flashes every 3 seconds. The
instrument enters pre-alarm when no motion is detected for 20 seconds.
This condition can be cleared by moving the instrument.
2-10
After 30 seconds of inactivity, the full Motion Alert alarm is triggered.
This alarm can only be cleared by pressing the ▲ button
2.4 Sensor Missing Alarm
The instrument enters the Sensor Missing alarm if the instrument
detects that a sensor is not properly installed in the instrument.
If a sensor is detected as missing, the following occurs:
•
"SENSOR ERROR" displays
•
The flag above the sensor detected as missing
flashes on the display
•
Alarm sounds and lights flash
•
Yellow Fault LED is on solid
•
If there is a sensor error at startup, the instrument shuts OFF
in 60 seconds.
2.5 Sensor Life Warning
If a sensor is nearing its end of life, the instrument warns the user
following a sensor calibration. While the sensor is still fully functional at
this point, the warning gives the user time to plan for a replacement
sensor and minimize downtime. The
is continuously displayed .
See calibration section 3.9 for more details.
2.6 Sensor Life Indicator
If the instrument cannot calibrate one or more sensors, the instrument
displays "Span" "Err" followed by the
and
to indicate end of
sensor life. See calibration section 3.9 for more details.
2.7 Monitoring Toxic Gases
The instrument can monitor the concentration of the following toxic
gases in ambient air:
• Carbon Monoxide (CO)
• Nitrogen Dioxide (NO2)
•
Hydrogen Sulfide (H2S).
The instrument displays the gas concentration in parts per million (PPM)
or mg/m3 on the Measuring page until another page is selected or the
instrument is turned OFF.
2-11
" WARNING
If an alarm activates while using the instrument, leave the
area immediately.
Remaining in the area under such circumstances can cause
serious personal injury or death.
The instrument has four gas alarms for each toxic gas:
•
•
•
•
HIGH Alarm
LOW Alarm
STEL Alarm
TWA Alarm.
If the gas concentration reaches or exceeds the alarm setpoint, the
instrument:
•
backlight turns ON
•
a vibrating alarm triggers
•
displays and flashes the Alarm icon
and either the Minimum
icon
(LOW alarm) or the Maximum icon
(HIGH alarm)
•
enters an alarm state.
2.8 Monitoring Oxygen Concentration
The instrument monitors oxygen concentration in ambient air. The alarm
setpoints can be set to activate on two different conditions:
•
•
Enriched - oxygen concentration > 20.8 % or
Deficient - oxygen concentration < 19.5 %.
" WARNING
If an alarm activates while using the instrument, leave the
area immediately.
Remaining in the area under such circumstances can cause
serious personal injury or death.
When the alarm setpoint is reached for either of the above conditions:
•
an alarm sounds
•
alarm LEDs flash
•
a vibrating alarm triggers
2-12
•
instrument displays and flashes the Alarm icon
and either the
Minimum icon
(Enriched alarm) or the Maximum icon
(Deficient alarm) along with the corresponding oxygen
concentration.
The LOW alarm (oxygen deficient) is latching and will not automatically
reset when the O2 concentration rises above the LOW setpoint. To
reset the alarm, press the ▲ button. If the alarm condition still exists,
the ▲ button only silences the alarm for five seconds.
False oxygen alarms can occur due to changes in barometric pressure
(altitude) or extreme changes in ambient temperature.
It is recommended that an oxygen calibration be performed at the
temperature and pressure of use. Be sure that the instrument is in
known fresh air before performing a calibration.
2.9 Monitoring Combustible Gases
The instrument displays the combustible gas concentration in %LEL or
%CH4 on the Measuring page until another page is selected or the
instrument is turned OFF.
" WARNING
If an alarm activates while using the instrument, leave the
area immediately.
Remaining in the area under such circumstances can cause
serious personal injury or death.
The instrument has two alarm setpoints:
•
HIGH Alarm
•
LOW Alarm.
If the gas concentration reaches or exceeds the alarm setpoint, the
instrument:
•
backlight turns ON
•
a vibrating alarm triggers
•
displays and flashes the alarm icon
and either the minimum
icon
(LOW alarm) or the maximum icon
(HIGH alarm)
•
enters an alarm state.
2-13
When gas reading reaches 100% LEL or 5.00% CH4, the instrument
enters a Lock Alarm state, the combustible sensor shuts down and
displays “xxx” in place of the actual reading. This state can only be
reset by turning the instrument OFF and ON in a fresh air environment.
" WARNING
A combustible gas reading of "100" or "5.00" indicates the
atmosphere is above 100% LEL or 5.00% vol CH4,
respectively, and an explosion hazard exists. Move away
from contaminated area immediately.
In such cases, the instrument LockAlarm feature activates.
2-14
3. Operation
Instrument operation is dialog driven from the display with the aid of the
three Function buttons (see Section 2).
3.1. Environmental Factors
A number of environmental factors may affect the gas sensor readings,
including changes in pressure, humidity and temperature. Pressure
and humidity changes affect the amount of oxygen actually present in
the atmosphere.
Pressure Changes
If pressure changes rapidly (e.g., stepping through airlock) the oxygen
sensor reading may temporarily shift, and possibly cause the detector to
go into alarm. While the percentage of oxygen may remain at or near
20.8 vol%, the total amount of oxygen present in the atmosphere
available for respiration may become a hazard if the overall pressure is
reduced by a significant degree.
Humidity Changes
If humidity changes by any significant degree (e.g., going from a dry, air
conditioned environment to outdoor, moisture laden air), oxygen
readings can be reduced by up to 0.5 %, due to water vapor in the air
displacing oxygen.
The oxygen sensor has a special filter to reduce the effects of humidity
changes on oxygen readings. This effect will not be noticed
immediately, but slowly impacts oxygen readings over several hours.
Temperature Changes
The sensors have built-in temperature compensation. However, if
temperature shifts dramatically, the sensor reading may shift. Zero the
instrument at the work site temperature for the least effect.
3-1
3.2. Turning ON and Fresh Air Setup
Instrument operation is dialog driven from the display with the aid of the
three Function buttons (see Section 2.2.1). For more information, see
the flow charts in Section 7.
Turn the instrument ON with the
button.
The instrument performs a self test and then goes to Fresh Air Setup:
•
all display segments are activated
•
audible alarm sounds
•
alarm LEDs light
•
vibrating alarm is activated.
During the self test, the instrument checks for missing sensors. In the
case of a missing sensor, the instrument displays the Sensor Missing
screen and alarms until it is turned OFF. Otherwise, the turn-ON
sequence continues.
The instrument displays:
•
Alarm and display self test
•
Manufacturer name
•
Instrument name
•
Software version
•
Sensor discovery
•
Combustible gas type
•
Toxic gas units
•
Alarm setpoints (
•
Calibration values
•
Date and time display
•
Last cal date (if activated)
•
CAL due date (if activated)
•
Fresh Air Setup option.
,
)(
,
)
Refer to flowchart in Appendix, Section 7.1.
3-2
3.2.1 Screen Displays during Startup
During the power-up sequence, all automatic page display timeouts are
preset to a range from two to four seconds. Several sequences and
screens occur during start up:
Instrument Self Test
The instrument performs a self test.
Instrument Name and Software version
Software version and instrument name display.
Combustible Gas Type
Name of Combustible Gas Type displays, e.g. BUTANE. Combustible
gas type can be changed manually through the SENSOR SETUP menu
or the MSA Link software.
Toxic Gas Units
Name of Toxic Gas Units displays (ppm or mg/m3).
Toxic units can only be modified through the MSA Link software.
3-3
Alarm Setpoints
Alarm setpoints for all installed and activated sensors display.
LOW alarm setpoints display, followed by HIGH alarm setpoints.
Alarm setpoints can be changed manually through the Setup menu or
the MSA Link software.
STEL and TWA Setpoints
The preset STEL and TWA values for installed and activated
sensors display.
Calibration Values
The preset Calibration values for installed and activated
sensors display.
Time and Date
The date displays in a month, day and year format.
In the event that the battery is fully discharged, the time and date reset.
At startup, the user is prompted to enter the time and date.
If the time and date information is missing, they are reset to
[Jan-01-2008] with time stamp [00:00].
3-4
Last CAL Date and CAL Due
These display options can be set by MSA Link software. If these options
are not set, these screens are not displayed.
•
By default Last Cal is activated.
•
By default Cal Due is deactivated
Fresh Air Setup (FAS)
The FAS screen is prompted (see Section 3.2.2)
3.2.2 Fresh Air Setup (FAS)
The Fresh Air Setup (FAS) is for automatic ZERO calibration of
the instrument.
The FAS has limits. The zero of any sensor that is outside of these
limits will not be adjusted by the FAS command.
If a battery charging cycle is interrupted before it is completed
(4 hours for a fully discharged battery), allow the instrument’s
internal temperature to stabilize for 30 minutes before performing a
Fresh Air Setup.
" WARNING
Do not activate the Fresh Air Setup unless you are certain
you are in fresh, uncontaminated air; otherwise, inaccurate
readings can occur which can falsely indicate that a hazardous atmosphere is safe. If you have any doubts as to the
quality of the surrounding air, do not use the Fresh Air Setup
feature. Do not use the Fresh Air Setup as a substitute for
daily calibration checks. The calibration check is required to
verify span accuracy. Failure to follow this warning can
result in serious personal injury or death.
3-5
Figure 3-1. Fresh Air Setup
If this option is enabled, the instrument displays "FAS?", prompting the
user to perform a Fresh Air Setup.
1. Press the ▲ button to bypass the Fresh Air Setup.
•
The Fresh Air Setup is skipped
•
The instrument goes to the Measuring page (Main page).
2. Press the
Setup.
button within 10 seconds to perform the Fresh Air
• The instrument starts the FAS.
• The screen shows a No Gas Symbol, a blinking hourglass, and
all enabled gas sensor readings.
• At the end of the FAS Calibration, the instrument displays "FAS
OK" or "FAS ERR". along with the flags of the sensors that
were outside of the FAS limits. All sensors that are within the
FAS limits will be zeroed.
3.3. Measurement Mode (Normal Operation)
In Normal Operation mode, the user can check the Minimum and Peak
readings prior to clearing the STEL and TWA values or performing a
Span and Zero Calibration.
The following options pages can be executed from the Normal
Operation screen:
Bump Page
This page allows the user to perform a bump check.
3-6
Peak Page
This page shows the peak readings for all sensors.
Min Page
This page shows the minimum reading for the oxygen sensor.
STEL Page
This page shows the calculated STEL readings of the instrument
TWA Page
This page shows the calculated TWA readings of the instrument.
Time / Date Page
This page shows actual time and date settings of the instrument.
3-7
Motion Alert
This page allows the Motion Alert feature to be activated or deactivated.
Using the three instrument buttons, the user can navigate through each
sub-menu in a top/down sequence.
Refer to section 2.3 and 7.3 in the appendix for detailed instructions on
navigating through these screens.
3.4 Instrument Setup
This section describes the configuration options that are available
through the Options Setup menus. These menus can be accessed only
when the instrument is turned ON while pressing and holding the ▲
button (see Sections 3.2 and 7.3).
This mode can only be activated at instrument turn-ON.
The operation is as follows:
1. Press and hold the ▲ button while turning the instrument ON.
•
Use the ▲ and ▼ buttons to enter the setup password.
The default password is "672".
2. Press
button to enter the setup menus.
• Incorrect password: instrument enters the Measure mode.
• Correct password: instrument continues/beeps three times.
The password can be changed through the MSA Link software.
In the Setup mode:
•
Press the
•
Press ▲ button to increase values by one or toggle a selection ON
or OFF.
•
Press and hold ▲ button to increase values by 10.
3-8
button to store chosen value or go to the next page.
•
Press ▼ button to decrease values by one or toggle a selection
ON or OFF.
Press and hold ▼ button to decrease values by 10.
The following options are available by pressing the ▼ and ▲ buttons:
•
Sensor Setup (SENSOR SETUP) - see Section 3.4.1
•
Calibration Setup (CAL SETUP) - see Section 3.4.2
•
Alarm Setup (ALARM SETUP) - see Section 3.4.3
•
Setup Time and Date (TIME SET) - see Section 3.4.4
•
EXIT.
3.4.1 Sensor Setup
Each sensor can be turned ON or OFF.
For more information, see the flow charts in Section 7.6.
Figure 3-2. Sensor Setup
1. To bypass this setup, press the ▲ or ▼ button; otherwise, continue
as follows.
2. Press the
button to enter the submenu.
3. Use the ▲ or ▼ button to change the option and confirm with the
button.
4. Repeat this procedure for all other sensors.
5. After setting the last sensor, continue to Calibration Setup.
3-9
3.4.2 Calibration Setup
The user can change and set the calibration values for each sensor.
It is also possible to select whether the Cal Due screen is displayed and
set the number of days until the next calibration is due. For more
information, see the flow charts in Section 7.7.
Figure 3-3. Calibration Setup
1. To bypass this setup, press the ▲ or ▼ button; otherwise, continue
as follows.
2. Press the
•
button to enter the submenu.
The calibration gas concentration of the first sensor is shown.
3. Press the ▲ or ▼ button to change the value.
4. Press the
•
5.
button to store the value.
Setup screen for the next sensor is displayed.
Repeat the procedure for all other sensors.
•
After setting the last sensor, the user is prompted to set
CALDUE.
6. Press the ▲ or ▼ button to enable or disable CALDUE Press the
button to confirm the selection.
7. If CALDUE is set ON, press the ▲ or ▼ button to select the
number of days
8. Confirm with the
button.
9. After confirmation, continue to Alarm setup.
3.4.3 Alarm Setup
The user can switch all alarms ON or OFF and change the alarm
setpoints for each sensor. For more information, see the Section 7.8
flow charts. See section 5.2 for alarm adjustment limits. The value of the
High Alarm can only be set to a value higher than the Low Alarm
setpoint.
3-10
Figure 3-4. Alarm Setup
1. To bypass this setup, press the ▼ or ▲; otherwise, continue
as follows.
2. Press the
button to enter the submenu.
3. Set alarms ON or OFF by pressing the ▲ or ▼ button. Confirm
with the
button.
• LOW ALARM settings for the first sensor display
4. Press the ▲ or ▼button to change the value.
5. Press the
button to store the value.
• HIGH ALARM settings for the first sensor display.
6. Press the ▲ or ▼ button to change the value.
7. Press the
button to store the value.
• STEL ALARM settings (for toxic sensors only) display.
8. Press the ▲ or ▼ button to change the value.
9. Press the
button to store the value.
• TWA ALARM settings (for toxic sensor only) for display.
10.Press the ▲ or ▼ button to change the value.
11. Press the
button to store the value.
12.Repeat the procedure for all other sensors.
13.After setting the last sensor, continue to Time and Date setup.
60% LEL or 3.0% volume of methane is the maximum High Alarm
setpoint that can be programmed by the user.
The alarms can be silenced momentarily by pressing the ▲ button.
However, if the gas concentration causing the alarm is still present, the
unit will go back into alarm.
3-11
3.4.4 Setup Time and Date
This submenu is for setting date and time. For more information see the
flow charts in Section 7.9.
Figure 3-5. Date and Time Setup
1 To bypass this setup, press the ▼ or ▲ button; otherwise,
continue as follows.
2. Press the
button to enter the submenu.
3. Set month by pressing the ▲ or ▼ button.
4. Press the
button to confirm month.
5. Repeat this procedure for day, year, hours and minutes.
•
By default, time displays in a 12-hour format.
•
The EXIT screen displays next.
6. Confirming this screen with the
setup.
button exits the instrument
•
If the sensors have not warmed up yet, the countdown
displays.
•
The instrument then goes to Measuring mode.
3.5 Data Logging
Connecting Instrument to PC
1. Switch ON the ALTAIR 4X and align the Datalink Communication
port on the ALTAIR 4X to the IR interface of the PC.
2. Use the MSA Link software to communicate with the instrument.
See MSA Link documentation for detailed instructions.
3-12
3.6 Function Tests on the Instrument
Alarm Test
Turn ON the instrument. Verify that:
•
all LCD segments are activated momentarily
•
alarm LEDs flash
•
horn sounds briefly
•
vibrating alarm triggers briefly.
3.7 Safe LED
The instrument is equipped with a green "SAFE LED". This green SAFE
LED flashes every 15 seconds under the following conditions:
•
the SAFE LED feature is enabled
•
instrument is in Measurement mode (Normal Operation)
•
•
combustible reading is 0% LEL or 0.00% CH4
Oxygen (O2) reading is 20.8%
•
Carbon Monoxide (CO) reading is 0 ppm or 0 mg/m3
•
•
Nitrogen Dioxide (NO2) reading is 0 ppm or 0 mg/m3
Hydrogen Sulfide (H2S) reading is 0 ppm or 0 mg/m³
•
no gas alarms are present (low or high)
•
instrument is not in Low Battery warning or alarm
•
CO, H2S, STEL and TWA readings are 0 ppm or 0 mg/m³.
3.8 Calibration Check
" WARNING
Perform a Calibration Check before each day’s use to verify
proper instrument operation. Failure to perform this test can
result in serious personal injury or death.
This test quickly confirms that the gas sensors are functioning. Perform
a full calibration periodically to ensure accuracy and immediately if the
instrument fails the Calibration Check. The Calibration Check can be
performed using the procedure below or automatically using the
GALAXY GX2 Test Stand.
3-13
3.8.1 Equipment.
See accessory section for ordering information for these components.
•
Calibration Check Gas Cylinder
•
0.25 liters/min. Flow Regulator
•
1/8" ID Superthane Ester Tubing
•
ALTAIR 4X Calibration Cap.
3.8.2 Performing a Calibration Check
The calibration check is simple and should only take about one minute.
Perform this calibration check before each day's use.
1. Turn ON the ALTAIR 4X Detector in clean, fresh air.
2. Verify that readings indicate no gas is present.
3. Attach calibration cap to the ALTAIR 4X Multigas Detector.
• Insert tab on calibration icap into slot on instrument.
• Press calibration cap as shown until it seats onto instrument.
•
3-14
Press both side tabs down onto instrument until they snap in.
4. Attach regulator (supplied with calibration kit) to the cylinder.
5. Connect tubing (supplied with calibration kit) to the regulator.
6. Attach other end of tubing to the calibration cap.
7. Open the valve on the regulator.
•
The regulator flow rate is 0.25 lpm.
•
The reading on the ALTAIR 4X Multigas Detector display
should be within the limits stated on the calibration cylinder or
limits determined by your company.
•
If necessary, change cylinder to introduce other
calibration gases.
•
If readings are not within these limits, the ALTAIR 4X Multigas
Detector requires recalibration. See Section 3.9, "Calibration."
3-15
3.9 Calibration
•
For 30 C.F.R. Part 75 determinations (MSHA versions), the ALTAIR
4X Multigas Detector must be operated in the 0-5% by volume
CH4 mode and must be calibrated with 2.5% by volume methane.
The ALTAIR 4X can be calibrated manually using this procedure or
automatically using the Galaxy or GALAXY GX2 Test Stand. Refer to
7.7 of the Appendix. Calibration must be performed using a flow
regulator with a flow rate set to 0.25 liters per minute.
If a battery charging cycle is interrupted before it is completed (4 hours
for a fully discharged battery), allow the instrument’s internal
temperature to stabilize for 30 minutes before performing a Calibration.
3.9.1 Fresh Air Setup and Zero Calibration
To skip the ZERO procedure and move directly to the calibration span
procedure, push the ▲ button. If no button is pushed for 30 seconds,
the instrument prompts user to perform a SPAN calibration before
returning to the Normal Operation mode.
1. Press and hold the ▲ button in Normal Operation mode for three
seconds.
2. If calibration lockout option is selected, enter password.
3-16
If calibration lockout option is NOT selected:
•
ZERO screen displays.
3. With the instrument exposed to fresh air, press the
button to
confirm the ZERO screen. A sensor Refresh and Zero Calibration
now occur.
NOTE: Alternatively, press the ▼ button to execute a
Fresh Air setup (FAS). See section 3.2.2 for more details.
•
After ZERO calibration completes, the instrument momentarily
displays “ZERO PASS” or “ZERO ERR” along with the flag of any
sensor that failed.
NOTE: During instrument zero calibration, the oxygen sensor is
also span calibrated to 20.8% oxygen fresh air, adjusting
the calibration curve as needed. During instrument span
calibration, the O2 sensor’s accuracy is checked against a
known oxygen gas concentration without adjusting the
calibration curve.
3.9.2 Span Calibration
To skip the Span procedure, push the ▲ button.
If no button is pushed for 30 seconds, the instrument returns to the
Measuring mode.
1. Once the zero is set, the span screen displays.
2. Connect the appropriate calibration gas to the instrument.
3-17
3. Attach the calibration cap to the instrument.
• Insert tab on calibration cap into slot on instrument.
• Press calibration cap as shown until it seats onto instrument.
•
Press both side tabs down onto instrument until they snap in.
•
Ensure that the calibration cap is properly seated.
• Connect one end of the tubing to the calibration cap.
• Connect other end of tubing to the cylinder regulator
(supplied in the calibration kit).
4. Open the valve on the regulator.
5. Press the
button to calibrate (span) the instrument.
• LEDs flash
• SPAN calibration starts.
3-18
After the SPAN calibration completes, the instrument momentarily
displays "SPAN PASS" successfully.
If a sensor is nearing its end of life, this"SPAN PASS" indication is
followed by the end of sensor life warning ( ). The
icon, and
gas type of the sensor nearing end of life, blink for 15 seconds
when the instrument returns to Measure mode. When in Measure
mode, the heart icon is continuously displayed.
If the span calibration is unsuccessful:
•
a Sensor Life Indicator displays (
and
) to show the
sensor has reached its end of life and should be replaced
•
The unit remains in alarm state until the ▲ button is pressed
•
The
and
symbols remain on the display until a
successful calibration or the sensor in question is replaced.
NOTE: A span calibration can fail for many reasons other than a
sensor at the end of its life. If a span calibration failure
occurs, verify items such as remaining gas in the
calibration cylinder, gas expiration date, security of the
calibration cap, etc. and repeat calibration prior to
replacing the sensor.
3.9.3 Finishing Calibration
1. Close the valve on the regulator.
2. Remove the calibration cap.
The calibration procedure adjusts the span value for any sensor
that passes the calibration test; sensors that fail calibration are left
unchanged. Since residual gas may be present, the instrument
may briefly go into an exposure alarm after the calibration sequence
is completed.
3-19
4. Maintenance
If an error occurs during operation, use the displayed error codes to
determine appropriate next steps.
" WARNING
Repair or alteration of the ALTAIR 4X Multigas Detector,
beyond the procedures described in this manual or by anyone other than a person authorized by MSA, could cause the
instrument to fail to perform properly. Use only genuine MSA
replacement parts when performing any maintenance procedures described in this manual. Substitution of components
can seriously impair instrument performance, alter intrinsic
safety characteristics or void agency approvals.
FAILURE TO FOLLOW THIS WARNING CAN RESULT IN
SERIOUS PERSONAL INJURY OR DEATH.
4-1
4.1 Troubleshooting
PROBLEM
DESCRIPTION
REACTION
ERROR TEMP
Temperature is below
-40°F (-40°C) or
above 167°F (75°C)
Return to normal temperature range
and recalibrate.
Contact MSA
ERROR EE
EEPROM Memory error
Contact MSA
ERROR PRG
Flash Memory error
Contact MSA
ERROR RAM
RAM Memory error
Contact MSA
ERROR UNK
Unknown error
Contact MSA
Battery warning repeats
every 60 seconds
Remove from service as soon as
possible and recharge battery
Battery is completely
discharged
Instrument is no longer sensing
gas. Remove from service
and recharge battery
ERROR
CHARGE
Charge error
Instrument must be between
10 and 35°C to charge.
Contact MSA if problem persists
SENSOR
ERROR
Missing Sensor
Verify sensor is properly installed
and recalibrate.
Contact MSA if problem persists
Instrument does
not turn ON
Low battery
Charge instrument
Sensor warning
Sensor is near its end of life
Sensor alarm
Sensor has reached end of life
and cannot be calibrated.
Replace sensor and recalibrate
LOW
BATTERY
BATTERY
ALARM
&
4-2
4.2 Live Maintenance Procedure Replacing and Adding a Sensor
" WARNING
Do not open the instrument in a hazardous area. Failure to
follow this warning can result in serious personal injury or
death.
" CAUTION
Before handling the PC board, the user must be properly
grounded; otherwise, static charges could damage the
electronics. Such damage is not covered by the warranty.
Grounding straps and kits are available from electronics
suppliers.
" WARNING
Remove and reinstall sensors carefully, ensuring that the
components are not damaged; otherwise instrument
intrinsic safety may be adversely affected, wrong readings
could occur, and persons relying on this product for their
safety could sustain serious personal injury or death.
To add a sensor to an instrument that is not already equipped with a
full array of sensors, remove the sensor plug from in front of the
formerly unused sensor housing.
" CAUTION
While instrument case is open, do not touch any internal
components with metallic/conductive objects or tools.
Damage to the instrument can occur.
1. Verify that the instrument is turned OFF.
2. Remove the four case screws, and remove the case front while
carefully noting the orientation of the sensor gasket.
3. Gently lift out and properly discard the sensor to be replaced.
•
Using fingers only, gently remove the toxic, combustible, or
oxygen sensor by gently rocking it while pulling it straight from
its socket.
4. Carefully align the new sensor contact pins with the sockets on the
printed circuit board and pressing it firmly in place.
NOTE: Ensure tab on sensor aligns with groove at top of holder.
4-3
• Insert the toxic sensor by placing it in the left-hand position of
the sensor holder.
• Insert the O2 sensor by placing it in the right-hand position of
the sensor holder.
• Insert the combustible sensor by placing it in the middle
position of the sensor holder.
•
If any sensor is not to be installed, ensure that a sensor plug is
installed properly in its place.
5. Reinstall the case front.
6. Re-install the screws.
7. Power ON the instrument. The instrument automatically senses
that a new sensor is installed and displays the "SENSOR
DSCVRY" screen. If the sensor replaced is the same as the
previous sensor, the instrument starts up normally. Proceed to step
10 and calibrate the instrument.
8. If the sensor installed is not the same as the previous
configuration, the instrument automatically senses the difference
when it is turned ON via "SENSOR CHANGE" on the display and
prompts the user to accept or reject the change. "ACCEPT?"
appears on the display. The left ▼ button accepts or the right ▲
button rejects the change. Go into the sensor setup and turn ON
the appropriate sensor after being prompted for a password.
Refer to sensor setup section 3.4.1 for more details.
9. Calibrate the instrument after the sensors have stabilized.
Allow sensors to stabilize at least 30 minutes before calibration.
" WARNING
Calibration is required after a sensor is installed; otherwise,
the instrument will not perform as expected and persons
relying on this product for their safety could sustain serious
personal injury or death.
4-4
4.3 Cleaning the Instrument
Clean the exterior of the instrument regularly using only a damp cloth.
Do not use cleaning agents as many contain silicones which damage
the combustible sensor.
4.4 Storage
When not in use, store the instrument in a safe, dry place between
65°F and 86°F (18°C and 30°C). After storage, always recheck
instrument calibration before use.
4.5 Shipment
Pack the instrument in its original shipping container with suitable
padding. If the original container is unavailable, an equivalent container
may be substituted.
4-5
5. Technical Specifications/Certifications
5.1 Technical Specifications
WEIGHT
8.3 oz. (instrument with battery and clip)
DIMENSIONS
(L x W x H)
4.4 x 3.00 x 1.37 inches – without fastening clip
ALARMS
Four gas alarm LEDs, a charge status LED, an audible alarm,
and a vibrating alarm
VOLUME OF
AUDIBLE
ALARM
95 dB typical
DISPLAY
LCD display
BATTERY TYPE
Rechargeable Li ION battery.
Li ION battery must not be charged in Ex area
INSTRUMENT
RUN TIME
34 hours at 77°F (25°C)
CHARGING TIME ≤ 4 hours
The maximum safe area charging voltage
Um = 6.7 Volts D.C
TEMP RANGE
14
-4
50
to 104°F
to 122°F
to 95°F
(-10 to 40°C)
(-20 to 50°C)
(10 to 35°C)
HUMIDITY
RANGE
15 - 90% relative humidity, non-condensing;
5 - 95% RH intermittent
ATMOSPHERIC
PRESSURE
RANGE
800 to 1200 mbar
INGRESS
PROTECTION
IP 67
MEASURING
METHODS
Combustible gas: Catalytic sensor
O2 and Toxic gas: Electrochemical sensor
MEASURING
RANGE
Combustible
0-100% LEL
0-5.00% CH4
O2
0-30% Vol.
Normal operating range
Extended operating range
While charging battery)
CO
0-1999 ppm
H2S
NO2
0-200 ppm 0-50.0 ppm
5-1
5.2 Factory-set Alarm Thresholds and Setpoints
Sensor LOW
alarm
HIGH
alarm
STEL
TWA
Min
alarm
setpoint
Max
alarm
setpoint
Auto-cal
values
CH4
0.5% CH4
1% CH4
--
--
0.1% CH4
3% CH4
2.5% CH4
O2
19.5%
23.0%
--
--
5
29
15.0%
CO
25 ppm
100 ppm
100
25
15
1700
60 ppm
H 2S
10 ppm
15 ppm
15
10
5
175
20 ppm
NO2
2.5 ppm
5.0 ppm
5.0 ppm
2.5 ppm
1 ppm
47.5 ppm
10 ppm
Per 30CFR Part 75.320, this unit has been MSHA performance tested to 19.5% O2
5.3 Certifications
See instrument label for the approvals that apply to your specific unit.
USA (Mining)
MSHA 30 CFR Part 22, Methane Detector.
Approved for 30 CFR Part 75 Determination testing for methane and oxygen deficiency
Performance Specification
5.4.1 Combustible Gas
Range
0 to 5% CH4
Resolution
0.05% vol CH4
±0.10 %CH4, 0.00% CH4
±0.15 %CH4, 0.25% CH4
Reproducibility
±0.15 %CH4, 0.50% CH4
±0.20 %CH4, 1.00% CH4
±0.20 %CH4, 2.00% CH4
±0.30 %CH4, 3.00% CH4
±0.30 %CH4, 4.00% CH4
±0.30 %CH4, 4.50% CH4
Response Time
(Typical)
5-2
90% of final reading
<10 seconds (methane)
(normal temperature range)
5.4.2 Oxygen
The oxygen sensor has built-in temperature compensation. However,
if temperature shifts dramatically, the oxygen sensor reading may shift.
Zero the instrument at the work place temperature for the least effect.
Range
Resolution
Reproducibility
0 to 30 vol.% O2
0.1 vol.% O2
0.7 vol.% O2 for 0 to 30 vol.% O2
0.7% O2 for O2 < = 15% (MSHA version only)
0.5% O2, for O2: 15%<O2 < =30% (MSHA version only)
Response Time
(Typical)
90% of final reading
<10 seconds (normal temperature range)
Oxygen Sensor
Cross-Sensitivity
The oxygen sensor has no common cross-sensitivities
5.4.3 Carbon Monoxide
Range
0 - 1999 ppm CO
Resolution
1 ppm CO for 6 - 1999 ppm H2S
± 5 ppm CO or 10 % of reading, whichever is greater
(normal temperature range)
Reproducibility
±10 ppm CO or 20 % of reading, whichever is greater
(extended temperature range)
Response Time
(Typical)
TEST GAS APPLIED
90% of final reading
<15 seconds (normal temperature range)
CONCENTRATION
(PPM) APPLIED
CO CHANNEL
% CROSS-SENSITIVITY
Hydrogen Sulfide (H2S)
Carbon Monoxide (CO)
40
0
100
100
Nitric Oxide (NO)
50
84
Nitrogen Dioxide (NO2)
Sulfur Dioxide (SO2)
11
0
9
-4
Chlorine (Cl2)
10
0
Hydrogen Cyanide (HCN)
30
-5
Ammonia (NH3)
Toluene
25
0
53
0
isopropanol
100
-8
Hydrogen (H2)
100
48
5-3
5.4.4 Hydrogen Sulfide
Range
Resolution
Reproducibility
0 - 200 ppm H2S
1 ppm H2S for 3 - 200 ppm H2S
±2 ppm H2S or 10 % of reading, whichever is greater
(normal temperature range)
±5 ppm H2S or 10 % of reading, whichever is greater
extended temperature range)
Response Time
(Typical)
90% of final reading <15 seconds
(normal temperature range)
TEST GAS APPLIED
CONCENTRATION
(PPM) APPLIED
CO CHANNEL %
CROSS-SENSITIVITY
Hydrogen Sulfide (H2S)
Carbon Monoxide (CO)
40
100
100
1
Nitric Oxide (NO)
50
25
Nitrogen Dioxide (NO2)
Sulfur Dioxide (SO2)
11
-1
9
14
Chlorine (Cl2)
Hydrogen Cyanide (HCN)
10
-14
30
-3
Ammonia (NH3)
Toluene
25
-1
53
0
isopropanol
100
-3
Hydrogen (H2)
100
0
5.4.5 Nitrogen Dioxide
Range
Resolution
Reproducibility
0 - 50.0 ppm NO2
0 - 0.1 ppm NO2
±1 ppm NO2 or 10% of reading, whichever is greater
(normal temperature range)
±2 ppm NO2 or 20% of reading, whichever is greater
(extended temperature range)
Response Time
(Typical)
5-4
90% of final reading
20 seconds (normal temperature range)
5.5 XCell Sensor Patents
1. Combustible (P/N 10106722):
Patent Pending
2. Oxygen (P/N 10106729):
Patent Pending
3. Carbon Monoxide/Hydrogen Sulfide
(P/N 10106725):
Patent Pending
5-5
6. Order Information
DESCRIPTION
PART NO.
Stainless Steel Suspender Clip
10069894
34L Quad Gas Mix (2.5% CH4, 15% O2, 60 ppm CO)
34L Quad Gas Mix (2.5% CH4, 15% O2, 60 ppm CO, 10 ppm NO2)
58L Quad Gas Mix (2.5% CH4, 15% O2, 60 ppm CO, 10 ppm NO2)
Calibration Assembly (cap, tube, connector)
10049056
10058172
10058171
10089321
North American Power Supply with Charge Connector
10087913
Charging Cradle Assembly with Power Supply (North America)
10087368
Vehicle Charging Cradle Assembly
10095774
MSA Link Software CD- Rom
10088099
JetEye IR Adapter with USB Connector
10082834
Combustible Sensor Replacement Kit
10121212
O2 Sensor Replacement Kit
CO/H2S Two Toxic Sensor Replacement Kit
10106725
10106729
CO/NO2 Two Toxic Sensor Replacement Kit
Front Housing with Integrated Dust Filters (charcoal)
10121217
10110030
Front Housing with Integrated Dust Filters (Phosphorescent)
10110029
Main Board w/ Battery Pack
10124956
LCD Frame Assembly (frame, LCD, zebra strips, screws)
10110061
Sensors Gasket, Screws (4x), self tapping (2x)
10110062
CD Manual ALTAIR 4X
10106623
6-1
7. Appendix – Flow Charts
7.1. Start Up Sequence (Power ON)
7-1
7.2 Fresh Air Setup
7-2
7.3 Reset Screen Controls
7-3
7-4
7.4 Calibrations
7-5
7.5 Options Setup
7-6
7.6 Sensor Setup
7-7
7.7 Alarm Setup
7-8
7.8 Time and Date Setup
7-9
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement