2. Safety precautions
Read and understand this manual for the sake of your own safety and the quality of the
work that you perform using this equipment.
The following concepts are used in this manual:
"DANGER"
Indicates a condition that MAY cause danger to life or serious
physical injury.
"WARNING"
Indicates a condition that MAY cause serious physical injury or
damage to the equipment in question.
"NOTE"
Indicates a condition that MAY cause equipment misoperation,
leading to erroneous measuring results.
Follow these instructions carefully:
DANGER:
Opening the device may involve danger to life or serious injury.
Live high-voltage wires may be exposed.
When connecting to mains, the unit
must
be connected to earth.
Under certain circumstances, mixture ratios with a
hydrogen (H
2
hydrogen) content exceeding 6% can be
explosive in combination with atmospheric air.
WARNING:
Always use correct fittings and hoses for gas connections.
Always use correct tools, and keep the gas inlet/outlet in
position when mounting/dismounting the hose connection and
nipples/sleeves.
When relocating/transporting the device it must not be subjected
to shocks.
The device must always be returned in the original transport
container for repair work covered by the guarantee.
The SGI-3/OXI-3 and the OXI-3.1 must never be used without
the measuring gas filter when measuring impure gases.
If the instructions above are not observed, the guarantee does
not apply.
The SGI-3 and the OXI-3 must never be exposed to direct gas
pressure, as the gas flow is controlled by the built-in pump.
NOTE:
The OXI-3.1 was designed to measure oxygen in inert gases
online, where visual display is not required and where the output
signal is linear.
2.1. Recommendations
v
We recommend constant mains supply to avoid delay time when warming up. The
device was designed to be constantly connected to mains, and this does not impair
its service life.
PBI-Dansensor A/S
SGI-3/OXI-3/OXI-3.1 User manual
6
PBI-210247-H UK 07/11/2005
