Honeywell BW Ultra User Manual page 57

LCD Liquid crystal display.
LCD is a technology that is commonly used for display screens on mobile digital devices.
Normal atmosphere
A fresh air environment with 20.9% v/v oxygen (O ) that is free of hazardous gas
2
Operating Life The period of operational use required to attain the specified operating limit.
Operating life includes normal operating time, alarm time, and all types of idle time.
OSHA
The US OSHA method is defined as a moving average that accumulates over an 8-hour
average. If the worker is in the field longer, the oldest accumulated values (first hour) are
replaced by the newest values (ninth hour). This continues for the duration of the work shift
until the detector is deactivated.
PPM
Parts per million, a measure of concentration.
Reboot
Restart the operating system for the module
Service Life
The expected lifetime of a product, as specified by the manufacturer.
Station
An area or zone dedicated to a specific activity. A compliance testing station may contain
several IntelliDoX modules and gangs of connected modules.
Stealth mode
When enabled, the backlight, visual alarms, and audible alarms are disabled. During an alarm,
the vibrator activates and readings are displayed on the LCD.
STEL
The Short-Term exposure Limit is the maximum permissible gas concentration a worker can be
safely exposed to for short periods of time (5-15 minutes maximum).
TWA Alarm
The time-weighted average (TWA) is a safety measure used to calculate accumulated averages
of gases. Using the US Occupational Safety and Health Administration (OSHA) method or the
American Conference of Governmental Hygienists (ACGIH) method, an average is calculated to
ensure the detector alarms when the TWA has accumulated.
V/V
Volume percent concentration.
BW Ultra 57 User Manual