HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S (01) PDF Document

The HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S comes in various models, each designed to monitor a specific gas. The available models and the gases they monitor are listed below:

To avoid possible personal injury, adhere to the following safety cautions when using your HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S:

• 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 using, inspect the case for cracks and missing parts.

• Use only a sensor specifically designed for the GasAlert Extreme model.

• Do not deactivate the detector during a work shift. Deactivating the detector resets the time-weighted average (TWA), short-term exposure limit (STEL), and maximum gas exposure values to 0.

• Ensure the sensor screen is not blocked.

• If the detector has been disassembled, ensure the front and rear shells are properly aligned and fastened before activating the detector.

• BW recommends to bump test the sensor before each day’s use to confirm its ability to respond to gas. Manually verify that the audible and visual alarms are activated. Calibrate the sensor if the reading is not within the specified limits.

• Calibrate the detector before first-time use, and then at least once every 180 days. For HCN detectors, calibrate once every 30 days.

• Use only the Panasonic CR-2PE/BN battery.

• To reduce the risk of ignition of a flammable atmosphere, batteries must only be changed in a safe area free of hazardous gas.

The main components of the HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S are identified in the table below:

The display elements on the LCD screen of the HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S have specific meanings as described in the following table:

Note: When enabled, the backlight option automatically activates for 3 seconds whenever there is insufficient light. You can also press and hold any button to activate the backlight for 6 seconds. The backlight does not operate when stealth mode is enabled.

The pushbuttons on the HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S perform various functions as detailed in the table below.

To activate the HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S, press the power button in a safe area, free of hazardous gas. When activated, the detector performs several self-tests in the following order:

1. **Display Elements Test:** The LCD displays all screen elements to ensure they are working correctly.

2. **Alarm Function Test:** The detector beeps, the LEDs flash, the backlight activates briefly, and the detector vibrates.

3. **Battery Test:** The detector tests the battery. If the voltage is too low, it performs an automatic shutdown.

4. **Date and Time:** The LCD displays the current year, month, day of the month, day of the week, and time (hour/minute).

5. **Sensor Test:** The detector tests the sensor. If it fails, the detector beeps slowly, LEDs flash slowly, and ALARM flashes.

6. **Gas Type:** The LCD displays the type of gas the detector is manufactured to monitor (e.g., CO).

7. **TWA Alarm Setpoint:** The LCD displays the TWA alarm setpoint (not applicable to O₂ detectors).

8. **STEL Alarm Setpoint:** The LCD displays the STEL alarm setpoint (not applicable to O₂ detectors).

9. **Low Alarm Setpoint:** The LCD displays the low alarm setpoint.

10. **High Alarm Setpoint:** The LCD displays the high alarm setpoint.

11. **Calibration Due Test:** The LCD displays the number of days remaining until the next calibration is due. If calibration is past due, CAL. PAST displays.

12. **Bump Test Fail:** If a previous bump test failed, the detector beeps, vibrates, and BUMP FAIL displays. The detector then automatically deactivates.

If the detector passes the self-test, it enters normal operation and displays the ambient gas reading.

To deactivate your HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S, follow these steps:

1. Press and hold the power button until OFF displays on the screen (approximately 5 seconds).

2. The detector will then beep and vibrate four times, the LEDs will flash four times, and then the detector will deactivate.

Note: If Deactivation Passcode Protection is enabled, you cannot disable the detector without entering a passcode first. PASS will display immediately after OFF, and you must enter the correct passcode.

The confidence beep on the HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S provides continuous confirmation that the detector is operating properly by beeping every 5 seconds. Enabling the confidence beep decreases battery life.

To enable or disable the confidence beep:

1. Ensure the detector is deactivated.

2. Press and hold the power button. While holding the power button, press the up arrow button.

When the confidence beep option is enabled, the detector will automatically begin beeping when activated. If a low battery alarm occurs, the confidence beep deactivates.

To access and navigate the User Options Menu, follow these steps:

1. Press and hold the down arrow and up arrow buttons simultaneously until OPTN displays, and then release the buttons.

2. If passcode protection is not enabled, the EXIT screen automatically displays. If it is enabled, the PASS screen displays. Use the arrow buttons to scroll to the required passcode and press the power button to confirm.

3. From the EXIT screen, use the up or down arrow buttons to scroll through the user options (e.g., CLCK, PASS, STLH).

4. Press the power button to select a displayed option.

5. After configuring an option, the screen returns to EXIT. Press the up or down arrow to select another option, or press the power button to exit the user options menu and return to normal operation.

As a safety precaution, if an option is not selected within 20 seconds, the detector automatically returns to normal operation.

To set the date (year/month/day/day of the week) and time (hour/minute) on your HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S, follow these steps in the user options menu:

1. From the EXIT screen, use the arrow buttons to scroll to the CLCK option.

2. Press the power button to select the option. The year setting will be displayed with ‘Set’ and the last two digits of the year flashing.

3. Use the arrow buttons to scroll to the required value and press the power button to confirm and move to the next setting. To bypass a setting and keep the current value, press the power button without changing the value.

4. Repeat step 3 for the remaining date/time changes in the following order:

5. After setting the minutes, the detector will return to the EXIT screen in the user options menu.

The passcode protection option (PASS) prevents unauthorized access to user options and calibration functions. The detector is shipped with this option disabled.

To enable passcode protection:

1. In the user options menu, scroll to the PASS option.

2. Press the power button to select it. ‘Set’ and PASS will flash.

3. Use the arrow buttons to scroll to the required passcode and press the power button to confirm.

4. The ON screen will display and flash. Press the power button to confirm. The LCD returns to the EXIT screen.

To disable passcode protection:

1. Access the user options menu by holding the up and down arrows. You will be prompted to enter the passcode.

2. Enter the correct passcode and press the power button to confirm. You will now be in the user options menu, starting at the EXIT screen.

3. Scroll to the PASS option and press the power button to select it.

4. The LCD displays a flashing OFF screen. Press the power button to confirm the disabling option.

5. You can toggle between ON and OFF options using the arrow keys before confirming your selection.

The stealth (STLH) mode option ensures the HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S is undetected by disabling the audible alarms, visual alarms, and backlight. Only the vibrator alarm remains enabled (note: the vibrator alarm is disabled at -20°C). The detector is shipped with stealth mode disabled.

To enable or disable stealth mode:

1. Enter the user options menu.

2. From the EXIT screen, use the arrow buttons to scroll to the STLH option.

3. Press the power button to select the option. The LCD will flash either ON or OFF.

4. Use the up or down arrow buttons to toggle between the ON (Enabled) and OFF (Disabled) options.

5. When the desired option is displayed, press the power button to confirm the selection. The LCD will return to the EXIT screen.

If stealth mode is enabled, the screen will display STLH continually unless functions are being performed, readings are not 0 ppm for toxics, or the reading is not 20.9% vol for oxygen.

To view the computed gas exposures on your HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S, follow these instructions:

For Toxic Gases:

1. Press the up arrow and power buttons simultaneously. The LCD first displays the Time-Weighted Average (TWA) gas exposure.

2. The LCD will then automatically display the Short-Term Exposure Limit (STEL) gas exposure.

3. Finally, the LCD will display the maximum (MAX) gas exposure.

For Oxygen Detectors:

• Press the up arrow and power buttons simultaneously to view both the maximum low and maximum high levels of oxygen exposure.

Warning: Do not deactivate the detector during a work shift. The detector automatically resets the TWA, STEL, and MAX gas exposures during start-up. If the detector is reactivated during a work shift, the new values will not reflect the entire work shift.

The peak gas exposures (MAX, TWA, and STEL) automatically clear after deactivating the detector.

To clear the peak exposure readings immediately without deactivating the unit, press and hold the power button for 6 seconds. The detector will beep and vibrate two times to confirm that the exposures have been cleared.

Caution: Follow all safety procedures as defined by your employer. Confirm with your supervisor before clearing TWA and STEL alarms.

The standard factory alarm setpoints for the HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S vary by gas type. Note that standard factory alarm setpoints may vary by region. The values are as follows:

When calibrating your HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S, adhere to the following guidelines:

• Use a premium-grade calibration gas approved by the National Institute of Standards and Technology (NIST). Do not use a gas cylinder beyond its expiration date.

• Recommended gas mixtures vary by sensor type (e.g., for H₂S: 10 to 100 ppm balance N₂).

• Before calibrating a new NO or ETO sensor, allow it to stabilize for 2 hours in a safe, hazard-free area.

• Calibrate a new sensor before use. Allow the sensor to stabilize before starting calibration (used: 60 seconds; new: 5 minutes).

• Calibrate the detector at least once every 180 days (for HCN detectors, calibrate at least once every 90 days), depending on use and sensor exposure to contaminants.

• Calibrate the detector if the ambient gas display varies at start-up.

• It is best to calibrate the sensor before changing the alarm setpoints.

• Calibrate only in a safe area that is free of hazardous gas.

• To disable an alarm, set the alarm setpoint to zero.

To perform a full calibration and set the alarm setpoints on your HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S, follow this procedure. To quit at any point, press the power button.

1. Start Calibration

In a safe area, press and hold the down arrow and power button simultaneously until the CAL screen displays. The detector will then display the auto zero screen.

2. Auto Zero

The detector automatically zeroes the sensor, flashing AUTO-ZERO. When complete, the detector beeps twice. Do not apply calibration gas until the flashing gas cylinder icon appears.

3. Set Span (Adjusting Calibration Gas Concentration)

After a successful auto zero, the Set SPAN screen appears. Use the arrow buttons to adjust the concentration value on the screen to match the value on your gas cylinder. Press the power button to save the new value and proceed.

4. Span (Applying Gas)

The screen now displays a flashing gas cylinder icon. Attach the test cap and hose, and apply the calibration gas at the recommended flow rate. When the detector senses a sufficient concentration (approx. 30 seconds), it beeps once and begins spanning. The process takes 2-5 minutes depending on the gas type. When complete, the detector beeps three times and automatically displays the calibration due date screen.

5. Setting the Calibration Due Date

Use the arrow buttons to set the number of days until the next calibration is due (1 to 365). Press the power button to save and proceed to the TWA alarm setpoint.

6. Setting Alarm Setpoints (TWA, STEL, Low, High)

For each alarm setpoint screen (TWA, STEL, LOW, HIGH), use the arrow buttons to scroll to the desired value. Press the power button to save the value and proceed to the next setpoint. You can bypass any setpoint by pressing the power button without changing the value.

After setting the High alarm setpoint and pressing the power button, calibration is complete. The detector beeps and vibrates four times before returning to normal operation.

To replace the battery in your HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S, follow these steps in a safe area free of hazardous gas. Use only the Panasonic CR-2PE/BN battery.

1. Deactivate the detector.

2. Remove the four machine screws on the rear shell and then remove the rear shell itself.

3. Remove the old battery.

4. Insert the new battery.

5. Re-assemble the detector. When re-assembling, ensure the following:

• Clean the seal on the front and rear shells with a soft, damp cloth. Do not use solvents, soaps, or polishes.

• Ensure the front and rear shells are properly aligned to create a proper environmental seal.

• Torque the four machine screws to 3-4 in-lbs in a crisscross pattern to ensure a proper seal. Do not overtighten.

Note: When the battery is removed, the clock reverts to its default value. You will need to reset it.

To replace the sensor in your HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S, follow these steps:

1. Deactivate the detector.

2. Remove the four machine screws on the rear shell and remove the rear shell.

3. Remove the two machine screws from the PCB (Printed Circuit Board).

4. Carefully remove the PCB.

5. Replace the old sensor. Gently rock the sensor back and forth to remove it if it is held tightly.

6. Re-assemble the detector. When re-assembling, ensure the following:

• Clean the seal on the front and rear shells with a soft, damp cloth. Do not use solvents, soaps, or polishes.

• Ensure the front and rear shells are properly aligned to create a proper environmental seal.

• Torque the screws to 3-4 in-lbs in a crisscross pattern. Do not overtighten.

After replacing a sensor, allow the new sensor 5 minutes to stabilize before use. For an ETO or NO sensor, allow the new sensor 2 hours to stabilize before use.

If you encounter a problem with your HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S, refer to the solutions in the table below.

The following tables list the specified replacement parts and accessories for the HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S.

Replacement Sensors and Screens:

General Accessories:

The technical specifications for the HONEYWELL BW TECHNOLOGIES GASALERT EXTREME H2S are as follows:

• **Instrument dimensions:** 2.8 x 5.0 x 9.5 cm (1.1 x 2.0 x 3.75 in.)

• **Weight:** 82 g (2.9 oz.)

• **Intrinsically safe operating temperature:** -40 °C to +50 °C (-40 °F to +122 °F)

• **Operating temperature, sensor-specific:**

– H₂S, SO₂, HCN: -40 °C to +50 °C (-40 °F to +122 °F)

– CO: -30 °C to +50 °C (-22 °F to +122 °F)

– NH₃, NH₃ (high range): -20 °C to +40 °C (-4 °F to +104 °F)

– Other gases: -20 °C to +50 °C (-4 °F to +122 °F)

• **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-condensing)

– O₂: 0% to 99% relative humidity (non-condensing)

• **Sensor type:** Plug-in electrochemical cells

• **Calibration:** Auto zero, set span, and span sensor

• **Alarm conditions:** TWA alarm, STEL alarm, low alarm, high alarm, sensor alarm, low battery alarm, confidence beep, automatic shutdown alarm.

• **Audible alarm:** 95 dB at 0.3 m (1 ft.) typical

• **Visual alarm:** Red light-emitting diode (LED)

• **Display:** Alpha-numeric liquid crystal display (LCD)

• **Backlight:** Automatically activates for 3 seconds when there is insufficient light and during alarm conditions. Any button reactivates the backlight for 6 seconds.

• **Self-test:** Initiated upon activation

• **Battery test:** Every 0.5 seconds

• **Battery:** Panasonic CR-2PE/BN battery

• **Warranty:** 2 years including sensors.

• **Detection Ranges:** Vary by gas, e.g., H₂S: 0 – 100 ppm (1 ppm increments); H₂S (high range): 0 – 500 ppm (1 ppm increments).