XD ONE uses two LED icons and audio sequences. The STEL alarm flashes the amber icon with two beeps per second, while the TWA alarm flashes the red icon with three beeps per second.
If both alarms are triggered at the same time, the TWA alarm takes priority.
The manuals note that particulate types and operating environments vary. AIR XD, XD1+, and XD ONE provide maintenance guidance based on average dust loading: low loading up to 5 mg/m3, medium loading up to 10 mg/m3, and high loading at 10 mg/m3 or above.
The schedules are guidance only; the site environment should be assessed periodically to set the appropriate routine.
XD ONE is a portable dust monitor designed to provide data on airborne particulates so users can take action in relation to particulate-related health hazards.
It can monitor selected PM sizes and TSP, display STEL and TWA audio-visual alarm warnings, log data on device, and connect to BreatheLITE for live readings and analysis.
XD ONE can be configured to measure and warn users based on PM1.0, PM2.5, PM4.25, and PM10, and it can report Total Suspended Particulates.
The manual describes recording particulates between 0.35 µm and 40 µm.
XD ONE is a portable monitor for a range of applications and environments. It alerts users to changes in particulate levels relative to predefined thresholds and limits.
The manual states it is suitable for indoor or outdoor ambient air conditions and can cope with both high and low particulate concentration levels.
XD ONE defaults include operating mode Normal, alarm PM size PM4.25, TWA period 8 hours, TWA threshold 1000 µg/m3, STEL period 15 minutes, STEL threshold 1000 µg/m3, log rate 10 seconds, and particle density 1.65 g/ml.
Default settings can be manually changed with Trolex BreatheLITE.
XD ONE begins particulate sampling automatically once the power-on and startup routine is complete.
STEL and TWA calculations, alarm warnings, and data recording are active alongside particulate sampling after startup.
XD ONE self-test checks OPC sensor communications, internal electronic hardware, battery pack function and calibration, data logging communications, and EEPROM memory.
Green flashing icons indicate a pass result, while red flashing icons indicate a failure or identified error.
A green flashing battery icon indicates 100% to 70% charge, amber indicates 69% to 40%, and red indicates 39% or lower.
When battery charge falls below 10%, the red warning flashes every second. At 0%, automatic low-power shutdown starts.
XD ONE provides Normal, In-cab, Data-log, and Live readout modes.
Normal mode records data and checks alarm thresholds; In-cab keeps sensing active while powered via USB; Data-log records without triggering warnings; Live readout streams live particulate data to BreatheLITE while also logging data.