3. Connection of the SGI-3, OXI-3 and OXI-3.1
3.1. Start-up
Connect the device to a 230 VAC (115 VAC) grounded power outlet using the supplied
mains cable.
When voltage is connected, the green “
Power
” LED lights up.
After a warm-up period of approx. 20 minutes, the green “
Ready
” LED will light up. The
device is now ready for use.
If the device is disconnected briefly, the subsequent warm-up period will be substantially
shorter (but not less than 3 minutes).
3.2. Connection of measuring gas
It is important to ensure that the measuring system is tight and to use oxygen
diffusion-proof hoses and fittings.
Not all hose materials are well suited. We recommend the use of the PBI-Dansensor A/S
measuring gas hose and the special shielding gas hose with accessory fittings.
Connect the measuring gas to the upper screwed connection ("
GAS IN
"). It is important to
use PBI-Dansensor A/S oxygen diffusion-proof hoses and to tighten the union carefully.
Use the "
RANGE
" push-button (SGI-3 and OXI-3 only) to select the gas to measure:
SGI-3:
"
Inert
", "
Formier 10 %
", "
Formier 5 %
" and "
Formier 2 %
".
OXI-3:
"
%
" and "
ppm
"
OXI-3.1:
"
%
" and "
ppm
" (selected by means of external control voltage via
connector)
"
%
"
used for inert gases in the percentage range.
"
ppm
"
used for inert gases in the ppm range.
"
Inert
"
used for inert gases such as argon (Ar),
nitrogen (N
2
), carbon dioxide (CO
2
), helium (He), and
mixed gases consisting of these constituents and oxygen (O
2
).
"
Formier 10 %
"
used for gases with a reducing effect, such as
formier gas containing hydrogen (H
2
) 10% H
2
that is mixed
with either nitrogen (N
2
) or argon (Ar).
"
Formier 5 %
"
used for a corresponding hydrogen mixture of 5 % H
2
.
"
Formier 2 %
"
used for a corresponding hydrogen mixture of 2 % H
2
.
When measuring formier gas mixtures with other concentration levels, select the
measuring range closest to the gas concentration.
Danger: Under certain circumstances, mixture ratios with a hydrogen (H
2
hydrogen)
content exceeding 6% can be explosive in combination with atmospheric air.
SGI-3/OXI-3/OXI-3.1 User manual
PBI-Dansensor A/S
PBI-210247-H UK 07/11/2005
7
