GasAlert Extreme O2, CO, H2S, PH3, SO2, Cl2, NH3, NO2, HCN, ETO, ClO2, O3, or NO Single Gas Detector User Manual D5561 English iERP: 114642 © 2004 BW Technologies. All rights reserved. Printed in Canada. All product names are trademarks of their respective companies.
Limited Warranty & Limitation of Liability BW Technologies Ltd. (BW) warrants this product to be free from defects in material and workmanship under normal use and service for a period of two years, beginning on the date of shipment to the buyer. This warranty extends only to the sale of new and unused products to the original buyer.
Table of Contents Title Page Introduction ......................................................................................................................................... 1 Contacting BW Technologies ............................................................................................................. 2 Safety Information - Read First........................................................................................................... 2 Getting Started................................
GasAlert Extreme User Manual Title Page Datalogger Sampling Rate Option...............................................................................................18 Data Transfer Option ...................................................................................................................19 Datalog and Event Log .....................................................................................................................20 Datalog ....................................................
List of Tables Table Title Page 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. GasAlert Extreme Order Number................................................................................... ii GasAlert Extreme Models .............................................................................................. 1 International Symbols .................................................................................................... 4 GasAlert Extreme Detector ............................................
GasAlert Extreme User Manual iv
List of Figures Figure Title Page 1. 2. 3. 4. GasAlert Extreme Detector ............................................................................................ 6 Display Elements ........................................................................................................... 7 Test Cap....................................................................................................................... 30 Replacing the Battery or Sensor ..................................................
GasAlert Extreme User Manual Order Number GAXT-X GAXT-M2 Order Number Description Description GasAlert Extreme O2 GAXT-E GasAlert Extreme ETO GasAlert Extreme CO GAXT-V GasAlert Extreme ClO2 GAXT-G GasAlert Extreme O3 GAXT-N GasAlert Extreme NO (low H2 sensitivity) GAXT-M GasAlert Extreme CO GAXT-H2 GasAlert Extreme H2S (high range) GAXT-H GasAlert Extreme H2S GAXT-P GasAlert Extreme PH3 GAXT-S GasAlert Extreme SO2 GAXT-C GasAlert Extreme Cl2 GAXT-A GasAlert Extreme NH3 GAXT-D
GasAlert Extreme Model Introduction aWarning To ensure your personal safety, read “Safety Information” before you use the detector. GasAlert Extreme CO GasAlert Extreme H2S Gas Monitored Carbon monoxide (ppm) Hydrogen sulfide (ppm) High range GasAlert Extreme H2S Hydrogen sulfide (ppm) GasAlert Extreme PH3 Phosphine (ppm) GasAlert Extreme SO2 Sulfur dioxide (ppm) The detector is a personal safety device. It is your responsibility to respond properly to the alarms.
GasAlert Extreme User Manual Contacting BW Technologies Safety Information - Read First To contact BW Technologies, call: Use the detector only as specified in this manual, otherwise the protection provided by the detector may be impaired. USA: 1-888-749-8878 Canada: 1-800-663-4164 Europe: +44 (0) 1869 233004 Middle East: +971-4-8871766 China: +852-2974-1783 Australia: +61-7-3818-8244 Anywhere in the world: +1-403-248-9226 Address correspondence to: BW Technologies Ltd. 2840 – 2 Avenue S.E.
GasAlert Extreme Safety Information - Read First a Caution To avoid possible personal injury: ⇒ Warning: Substitution of components may impair intrinsic safety. ⇒ Warning: To prevent ignition of flammable or combustible atmospheres, disconnect power before servicing. ⇒ Do not use the detector if it is damaged. Before you use the detector, inspect the case. Look for cracks or missing plastic. ⇒ If the detector is damaged or something is missing, contact BW Technologies immediately.
GasAlert Extreme User Manual a Caution To avoid possible damage to the detector: ⇒ Do not expose the detector to electrical shock and/or severe continuous mechanical shock. ⇒ Do not attempt to disassemble, adjust, or service the detector unless instructions for that procedure are contained in the manual and/or that part is listed as a replacement part. Use only BW Technologies replacement parts.
GasAlert Extreme Getting Started Getting Started The items listed below are included with your detector. If the detector is damaged or something is missing, contact the place of purchase immediately. • 3 V lithium CR2-series battery.
GasAlert Extreme User Manual Table 3. GasAlert Extreme Detector Item Figure 1.
GasAlert Extreme Getting Started Table 4. Display Elements Item Function A Numeric value B Gas cylinder C Automatic span sensor D Pass code lock E Set alarm setpoints and user options F Maximum gas exposure G Alarm conditions H Battery Figure 2.
GasAlert Extreme User Manual Table 5. Pushbuttons Pushbutton A E D C 8 Description • To turn on the detector, press A. • To initiate the confidence beep, press A while pressing C at startup. • To turn off the detector, press A and hold for 5 seconds. • To decrement the displayed value, press E. • To enter the user options menu, press E and D simultaneously and hold for 5 seconds. • To initiate calibration and setting alarm setpoints, press and hold E and C simultaneously.
GasAlert Extreme Activating the Detector Activating the Detector 4. To activate the detector, press A. The detector now tests the sensor. If the sensor test fails, the audible alarm emits a slow modulating tone, the visual alarm flashes slowly, and the ALARM icon flashes. The detector begins a self-test. Self-Test Once the detector is activated, it performs the following checks. (Manually check that all actions occur.) 1. The display shows all the elements. 2.
GasAlert Extreme User Manual 6. The display shows the TWA alarm setpoint. (Does not apply to O2.) 7. The display shows the STEL alarm setpoint. (Does not apply to O2.) 9. The display shows the high alarm setpoint. 10. The display shows the calibration information. Calibration Due Date The display shows the following screens: CAL. DUE XXX DAYS (where ‘XXX’ represents a number). 8. 10 The display shows the low alarm setpoint.
GasAlert Extreme Activating the Detector Calibration Past Due If the display shows the following screens: If an incorrect pass code is entered, the detector will shut down. If the correct pass code is entered, the detector enters normal operation so a calibration can be performed. Self-Test Pass It means the detector is past its calibration due date and it needs to be calibrated before use. If the detector passes the self-test, the detector begins normal operation.
GasAlert Extreme User Manual Deactivating the Detector Confidence Beep To turn off the detector, press and hold A for 5 seconds. The confidence beep tells you the battery has sufficient power to appropriately respond to a hazardous level of gas and emit an alarm. Instead of beeping when the battery’s power is low, the audible alarm beeps to advise you the battery has sufficient power. The confidence beep stops when the battery power is low.
GasAlert Extreme User Options Menu 10. RATE: Adjust the datalogger sampling rate. (Only applicable to detectors with the datalogger option.) User Options Menu The following are the available user options: 1. EXIT: Exits the user options menu. 2. CLCK: Adjust the date and time of the detector. 3. PASS: Enable or disable pass code protection. 4. STLH: Enable or disable stealth mode. 5. BKLT: Enable or disable the automatic backlight function.
GasAlert Extreme User Manual Exit Option To exit the options menu and return to normal operation, press C when the display reads EXIT. Enter the current year. Press D to scroll and C to confirm your selection. Enter the month. Press E and D to scroll, and press C to confirm your selection. Date and Time Option The date and time option allows your detector to track the calibration due date and the datalogger information. Set the date and time to your local settings.
GasAlert Extreme User Options Menu Pass Code Protection Option To Activate Pass Code Protection Pass code protection prevents unauthorized personnel from having access to the user options menu, calibration function, and alarm setpoint adjust function. As the PASS display is flashing, scroll to the correct pass code and press C. Note If pass code protect is enabled, press E and D to scroll to the correct pass code when the following screen appears. The factory pass code is provided separately.
GasAlert Extreme User Manual Stealth Mode Option Automatic Backlight Option Stealth mode disables the backlight and the audible and visual alarms. The detector is shipped with stealth mode disabled. This option allows you to disable the automatic backlight of the detector so regardless of the current lighting situation it does not activate. To enter the stealth mode option, press C when the display shows STLH. The detector is shipped with the automatic backlight function enabled.
GasAlert Extreme User Options Menu Latching Alarm Option Automatic Oxygen Calibration Option The latching alarm option allows an alarm to remain active until the user acknowledges the alarm by pressing C. This option allows you to enable or disable the automatic Oxygen calibration. Enabling this option allows the GasAlert Extreme Oxygen detector to calibrate its sensor during startup. (Sensor is calibrated after the display shows when the next calibration is due.
GasAlert Extreme User Manual Calibration Past Protection Option This option allows you to enable an automatic shutdown at startup if the detector is past due for a calibration. The detector is shipped with English as the language default. Scroll to the appropriate language and press C to confirm your choice. The detector is shipped with this option disabled. Datalogger Sampling Rate Option To enter the calibration past protection option, press C when the display reads PAST.
GasAlert Extreme User Options Menu Data Transfer Option This option transfers the datalog/event log information from the detector to the PC. Once you select one of the three options, the display will administer a countdown to indicate that the data is transferring. Note You need an IR DataLink (or other BW accessory) in order to transfer the data from the detector to the PC. To enter the data transfer option, press C when the display shows SEND.
GasAlert Extreme User Manual If the connection between the detector and the IR DataLink is disturbed during a transfer, the following display appears before exiting to the user options menu. Datalog and Event Log The GasAlert Extreme datalogger version allows the detector to record various information so a report can be compiled. Datalog Note If the transfer fails, selecting LAST will resume the transfer from where the initial send failed.
GasAlert Extreme Datalog and Event Log • The period that STEL is calculated; Event Log • Confidence beep is on/off; • Automatic backlight is on/off; An event log is data which is recorded when an event (i.e., an alarm) occurs.
GasAlert Extreme User Manual Alarms Table 7 describes the computed gas exposures. Table 6 describes detector alarms and shows how the display looks for each alarm. Table 6.
GasAlert Extreme Alarms Table 6. Alarms (cont.
GasAlert Extreme User Manual Table 7. Computed Gas Exposures Computed Gas Exposures a Warning To avoid possible personal injury, do not turn off the detector during a work shift. The detector automatically resets the TWA, STEL, and maximum gas exposures at startup. If you restart the detector during a work shift, these values will not reflect the entire work shift. Gas Exposure TWA Description • • STEL • • Maximum* • Time-weighted average based on an 8-hour workday. Accumulated value.
GasAlert Extreme Alarms Viewing Gas Exposures Toxic Gases Press C and D simultaneously and the display first shows the TWA gas exposure. Press C and hold for 6 seconds to clear the TWA, STEL, and maximum gas exposure. The detector emits two beeps and two vibrations to confirm that the exposures have been cleared. Oxygen If you have an Oxygen detector, pressing C and D simultaneously displays both the very low and very high levels of Oxygen exposure. The display then shows the STEL gas exposure.
GasAlert Extreme User Manual Resetting Gas Alarm Setpoints Gas Alarm Setpoints The detector’s gas alarm setpoints trigger the gas alarms described in the table below. Table 8. Gas Alarm Setpoints Alarm TWA above TWA alarm setpoint. (O2: Not applicable) STEL Alarm STEL above STEL alarm setpoint. (O2: Not applicable) Low Alarm Toxic Gases: Ambient gas level above low alarm setpoint. Table 9 lists the factory alarm setpoints. Table 9.
GasAlert Extreme Alarms Gas TWA STEL Low High ClO2 0.10 ppm 0.30 ppm 0.10 ppm 0.30 ppm O3 0.10 ppm 0.10 ppm 0.10 ppm 0.20 ppm NO 25 ppm 25 ppm 25 ppm 25 ppm To change the factory alarm setpoints, refer to the section Calibration and Setting Alarm Setpoints. Note You can disable an alarm by setting the alarm setpoint to 0. The ETO sensor is extremely cross sensitive and it responds strongly to CO.
GasAlert Extreme User Manual Low Battery Alarm Automatic Shutdown Alarm The detector tests the battery during the activation self-test and continuously thereafter. If the battery voltage is low, the detector activates the low battery alarm. There are two situations where an automatic shutdown alarm occurs: 1. The low battery alarm continues until you replace the battery or the battery power is almost depleted. If the battery voltage drops too low, the detector executes an automatic shutdown.
GasAlert Extreme Calibration and Setting Alarm Setpoints Calibration and Setting Alarm Setpoints • Calibration accuracy is never better than the calibration gas accuracy. BW Technologies recommends a premium grade calibration gas. Gases with NIST (National Institute of Standards and Technology) traceable accuracy will improve the validity of the calibration. Do not use a gas cylinder beyond its expiration date. • Calibrate a new sensor before use.
GasAlert Extreme User Manual Test Cap The test cap and hose, which are shipped with the detector, simplify the sensor testing and calibration. Table 10 and Figure 3 show how to use the test cap and hose when applying gas to the sensor. Table 10. Test Cap Item Description A Test cap B Hose C Regulator and gas cylinder Figure 3.
GasAlert Extreme Calibration and Setting Alarm Setpoints Auto Zero Calibration Procedure To calibrate the detector and set its alarm setpoints, perform the following procedure. 2. The display flashes AUTO-ZERO while the detector automatically zeroes the sensor. Note To quit at any point, press A. The detector retains any saved values and emits four beeps and four vibrations before returning to normal operation. Calibrate O2 in clean air. Start Calibration 1.
GasAlert Extreme User Manual Pass Code Protect Activated After a successful auto zero, the detector asks for the pass code if the detector is pass code protected. The pass code needs to be entered before proceeding to auto span and alarm setpoints. 3. The display will advise calibration is locked. It then requests the pass code. (Refer to Pass Code Protection Option.) Note If the correct code is entered, the detector beeps twice and automatically proceeds to set span.
GasAlert Extreme Calibration and Setting Alarm Setpoints Set Span The display shows the current calibration gas setting. The display flashes prompting you to input a new calibration gas concentration, or you can accept the current value for the span (sensitivity adjustment). 4. To change the calibration gas setting, press D or E until the display matches the concentration of the calibration gas. 5. Press C to save the new value.
GasAlert Extreme User Manual Span The display now shows a flashing gas cylinder prompting you to apply a calibration gas to the sensor or you can skip the span. NH3, Cl2, ClO2, O3, and ETO: 5 minutes; O2: 30 seconds; other gases: 2 minutes (approximately). The audible alarm beeps three times at the end of the span. Note The detector will not span a sensor if: • You do not apply gas to the sensor. • The sensor fails to detect at least a quarter of the expected gas concentration in the first 30 seconds.
GasAlert Extreme Calibration and Setting Alarm Setpoints Setting the Calibration Due Date After a successful calibration, the display shows the number of days remaining before the next calibration is due. (The default setting is 180 days.) The display flashes prompting you to change the calibration due date between 1 and 365 days. 7. If you want to change the next calibration due date, press D or E until the display shows the new value. 8. Press C to save the new value.
GasAlert Extreme User Manual Setting the TWA Alarm Setpoint Setting the STEL Alarm Setpoint The display now shows the TWA alarm setpoint. The display shows the STEL alarm setpoint. The display flashes, prompting you to input a new TWA alarm setpoint. The display flashes prompting you to input a new STEL alarm setpoint. 9. If you want to change the TWA alarm setpoint, press D or E until the display shows the new value. 10. Press C to save the new value.
GasAlert Extreme Calibration and Setting Alarm Setpoints Setting the Low Alarm Setpoint The display now shows the current low alarm setpoint. The display flashes prompting you to input a new low alarm setpoint. Note If you do not press any pushbuttons within 10 seconds of entering the low alarm display, the detector automatically retains the existing value. If you change the low alarm value but pause for 10 seconds before pressing C, the detector rejects the new value.
GasAlert Extreme User Manual Setting the High Alarm Setpoint The display shows the high alarm setpoint. The display flashes prompting you to input a new high alarm setpoint. 15. If you want to change the high alarm setpoint, press D or E until the display shows the new value. 16. Press C to save the new value. Note If you do not press any pushbuttons within 10 seconds of viewing this display, the detector automatically retains the existing high alarm setpoint.
GasAlert Extreme Maintenance Maintenance Cleaning a Sensor To keep the detector in good operating condition, perform the following basic maintenance as required: Remove the sensor. Clean using a soft, clean brush. Do not use water. • Calibrate, test, and inspect the detector at regular intervals. • Keep an operations log of all maintenance, calibrations, and alarm events. • Clean the exterior with a soft damp cloth. Do not use solvents, soaps, or polishes.
GasAlert Extreme User Manual Replacing the Battery or Sensor a Warning To avoid possible personal injury: Replace the battery as soon as the detector emits a low battery alarm. Figure 4 and Table 11 illustrate how to replace the battery or sensor. If the detector is on, shut down the detector before replacing the battery or sensor. Use a Phillips head screwdriver to loosen and tighten any screws. Do not use excessive force when removing or inserting the sensor, or the sensor can be damaged.
GasAlert Extreme Replacing the Battery or Sensor Table 11. Replacing the Battery or Sensor Item Description A Detector back screws B Detector back C Battery D Main board screws E Main board F Sensor G Detector front H Sensor screen Figure 4.
GasAlert Extreme User Manual The detector’s electronics are protected from variations in humidity and corrosive atmospheres. If you encounter a problem, try the solutions listed in the following table. Troubleshooting This section describes the various problems you may encounter with your detector and how you can fix those problems. If you still are unable to correct the problem, contact BW Technologies. Table 12. Troubleshooting Tips Problem The detector does not turn on.
GasAlert Extreme Troubleshooting Table 12. Troubleshooting Tips (cont.) Problem Possible Cause Solution The activation self-test fails during one of the checks. → General fault → Contact BW → Alarm setpoints are incorrect → Reset alarm setpoints The detector does not display normal ambient gas reading after activation self-test.
GasAlert Extreme User Manual Table 12. Troubleshooting Tips (cont.) Problem Possible Cause Solution → Alarm setpoint(s) are set incorrectly → Reset alarm setpoints → Alarm setpoint(s) set to zero → Reset alarm setpoints → Detector is in calibration mode → Complete the calibration procedure → Ambient gas levels are near alarm setpoint or the sensor is exposed to a puff of the targeted gas → Detector is operating normally. Use caution in suspect areas. Check maximum gas exposure reading.
GasAlert Extreme Replacement Parts and Accessories Model No. Replacement Parts and Accessories a Warning To avoid personal injury or damage to the detector, use only specified replacement parts. To order any parts or accessories, contact BW Technologies. Table 13. Replacement Parts and Accessories Model No.
GasAlert Extreme User Manual Specifications Sensor type: Plug-in electrochemical cells Operating temperature: H2S, SO2, HCN: -40°C to +50°C (-40°F to +122°F) CO: -30°C to +50°C (-22°F to +122°F) Other gases: -20°C to +50°C (-4°F to +122°F) Calibration: Auto zero, set span, and span sensor Operating humidity: CO, H2S, SO2, Cl2, HCN, NO2, NH3, PH3, ETO, NO, O3: 15% to 90% relative humidity (non-condensing) Cl2: 10% to 95% relative humidity (non-condensing) ClO2: 15% to 95% relative humidity (non-condensi
GasAlert Extreme General Specifications for Datalogger Units General Specifications for Datalogger Units Storage: Maximum of 8 months of data at 5-second intervals (based on a normal workweek). Memory Type: Wrap-around memory ensures most recent data is always saved. Sample Rate: One reading every 5 seconds (standard).
GasAlert Extreme O2, CO, H2S, PH3, SO2, Cl2, NH3, NO2, HCN, ETO, ClO2, O3, or NO Single Gas Detector User Manual D5561/3 English iERP: 116330 © 2004 BW Technologies. All rights reserved. Printed in Canada. All product names are trademarks of their respective companies.