O2NE+ & Safe-Ox+
User Manual Int. Approved
Document ref: P0120-820-14 August 2017 Page 7 of 23
Commercial in Confidence
4.3 Wiring installation
It is necessary to identify the model of Ax O2NE+™/Safe-Ox+™ prior to installation. The
calibration certificate accompanying each instrument will clearly identify the information
required.
***
ENSURE THAT THE
ELECTRICAL SUPPLY TO THE INSTRUMENT
IS SWITCHED OFF
WHILST INSTALLING ANY WIRING
***
4.4 AC supply models
Mains powered Ax O2NE+™/Safe-Ox+™'s are pre-wired with a mains cable, fitted with a plug
suited to the destination country. Where internal plug fuses are fitted, these are 3 amp. Ensure
that the unit is connected to the correct supply voltage (i.e. 110 or 230V AC). Where no fuse is
fitted in the plug, the instrument should be powered from a 3 amp fused outlet. The Ax
O2NE+™/Safe-Ox+™ is fitted with an internal fuse, which is rated at 500mA.
4.5 DC supply models
DC powered Ax O2NE+™/Safe-Ox+™ 's require a DC supply in the range 9-24V DC. A 2m
cable is factory fitted to the instrument. The DC supply should be connected to this cable as
follows:
1) Blue wire negative (0Volts)
2) Red wire positive (9 to 24Volts)
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