No. The Group I manual states that the USB connector on the base of the equipment shall only be connected to the Trolex TX8805 AIR XD USB Drive in the hazardous area.

USB drives with no power source, such as standard USB sticks, may be connected to the USB connector in the safe area for test purposes.

The Group I AIR XD manual covers intrinsically safe underground mining versions and includes IECEx, ATEX/IECEx, and MASC certification information, certificate codes, and special conditions of use.

It also defines intrinsically safe circuit parameters for connectors and states that hazardous-area USB connection is limited to the Trolex TX8805 AIR XD USB Drive.

For AIR XD instruments connected to a DC power supply, the installer must ensure the DC supply meets reinforced insulation requirements of EN61010-1 or equivalent.

The General Purpose AIR XD manual lists +9 V to +36 V DC input; the Group I intrinsically safe manual lists a nominal 12 V, 500 mA supply with intrinsically safe parameters that must be observed.

For AIR XD instruments connected to an AC power supply, the installer must ensure the instrument is protected by an external fuse or circuit breaker rated at a maximum of 5 A and that the instrument is externally earthed.

Follow the rating plate and wiring information in the manual for the installed model.

AIR XD is designed to allow infrequent pressure washing during maintenance schedules, but the inlet cap must be closed first.

Keep an appropriate distance between the pressure washer and the instrument, and do not direct the water jet at the underside of the instrument because water must not enter the air flow path.

During the compliance audit procedure, AIR XD exports specific TRX files for the logged test period only. These files use a QA prefix so they can be identified separately from normal operational data logging files.

The files can be imported into Trolex Breathe software for analysis if required.

Fault 0x0009 means AIR XD failed to load and apply user-configured settings and default settings will be applied.

Re-apply the custom settings and check whether the unit saves and restores files. If that fails, contact Trolex or an approved distributor.

Fault 0x0301 means communication with the particulate sensor assembly has been lost.

Check the D-type connector to the sensor housing and power cycle the unit. If the issue remains unresolved, contact the support route specified in the manual.

Fault 0x0304 indicates fan current too high, and 0x0305 indicates no fan current. Both point to possible particulate sampling fan malfunction.

Check that the instrument is operating within the rated temperature range. If the fault persists, use the support route in the manual.

Fault 0x0306 means the sensor laser current is high and the particulate sensor may have failed or be operating at excessive temperature. Check that the instrument is within its rated temperature range.

Fault 0x0307 means the sensor laser current is low and the sensor may have failed. The manual directs users to contact Trolex or an approved distributor.