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Device Hardware Interfaces
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 |
---|---|
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The ![]() When the ▲ button and the ![]() |
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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. |
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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:
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RED / GREEN | 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.
2.2.6 On-Screen Indicators
- Graphic Symbols
- Gas Type
- Gas Concentration
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Alarm Symbol |