v
sensor warm (ready to measure) = 15 VDC (10 mA)
pin 4 (+) & pin 7 (-) :
“Measuring range” input:
v
“ppm” measuring range = 0 VDC
v
“%” measuring range = 10-32 VDC (10 mA)
pin 6 (+) & pin 5 (-) :
15 VDC supply output, max. 10 mA
pin 5 (-) :
Internally connected to pin 2 (-)
pin 8 (+):
Internally connected to pin 1 (+)
5.4. Voltage and current output
Jumper “JM3” (the upper jumper in the small PCB) determines whether the output (pin 1
& pin 2) in the DIN connector is a current output or a voltage output.
v
JM3 in pos. 1-2 = Current output (max. 500 Ohm)
v
JM3 in pos. 2-3 = Voltage output (0 - 5 VDC)
The factory setting is normally current output on SGI-3 and OXI-3, and voltage output on
OXI-3.1.
Warning:
It is important that the connection between the device and the printer or other
data collection equipment is made correctly.
When using the current output to supply peripheral equipment, only pin 1 (or 8) and pin 2
(or 5) should be connected.
Connected equipment must be galvanically separated from mains (and ground), and it
must not send voltage back to the output of the device.
When welding:
Use a screened cable between the oxygen indicator and the connected equipment. The
screen should
only
be connected to the
housing of the DIN connector
linked to the
oxygen indicator.
The cable between the device and the printer must be connected before mains voltage is
supplied.
SGI-3/OXI-3/OXI-3.1 User manual
PBI-Dansensor A/S
PBI-210247-H UK 07/11/2005
11
