Battery Care
Battery Life Indicator
The battery condition icon continuously displays in the upper right-hand corner of the 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.
The nominal run-time of the device at room temperature is 22 hours. Actual run-time will vary depending on ambient temperature and alarm conditions. The runtime of the device at -4°F (- 20°C) will be approximately 12 hours.
The alarm levels for the individual gases are factory-set and can be changed through the Setup Menu.
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.
A Low Battery Warning indicates that a nominal 30 minutes of operation remain before the battery’s charge is depleted.
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The duration of remaining device operation during a Low Battery -Warning depends on ambient temperatures. |
When the device goes into Low Battery Warning, the:
| • | battery life indicator flashes |
| • | alarm sounds |
| • | alarm LEDs flash |
| • | display flashes "LOW BATT" and  |
| • | device repeats this warning every 60 seconds and continues to operate until it is turned OFF or battery shutdown occurs. |
Battery Shut Down
WARNING!
If the battery shutdown alarm activates, stop using the device as it no longer has enough power to indicate potential hazards, and persons relying on this device for their safety could sustain serious personal injury or death.
The device goes into battery shutdown mode 60 seconds before final shutdown (when the batteries can no longer operate the device):
| • | "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 device -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 device in hazardous area. |
| • | Use of any charger, other than the charger supplied with the device, 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. |
Failure to follow this warning can result in serious personal injury or death.
NOTE: Allow very hot or cold devices 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 device at room temperature (23°C/73°F). |
To Charge the Device
| • | Firmly insert the charger connector into the charge port on the back of the device. |
| • | The battery symbol  scrolls through a progressively increasing number of segments and the charge LED is red until 90% of full charge has been obtained. Then the battery symbol 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 turns orange. Disconnect the charger momentarily to reset the charge cycle. |
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 |
| • | Device is on normal Measure Gases page |
| • | Device is not in battery warning |
| • | Device is not in gas alarm |
| • | Audible and visual options are enabled |