16
Problem solving: if any of the tests described above failed, you
should change the connecting cable and repeat the test. If the test
still shows the same result, the transmitter or the cable is defective.
Please note: the O
sensor at 25°C (77°F). All commonly used tables programmed in
each transmitter for solubility, salinity correction, etc apply stan-
dardized values, e.g. temperature 25°C (77°F), pressure 1.013bar
(14.69 psi) and a relative humidity 100%. The transmitter calcu-
lates back the value that the sensor would deliver under these refer-
ence conditions. This compensated value may differ from the direct
current delivered by the simulator if for example the calibration pres-
sure (manually tipped or automatically measured by some trans-
mitter) differs from 1.013bar (14.69psi) or if the relative humidity
typed in is different from 100%.
3.3
Product specification
Current in air InPro 6900
Zero current (in N
Current in air InPro 6800
InPro 6800/6900/6950
52 200 952
Sensor-Simulator simulates the behavior of a
2
)
2
Polarization
voltage –675mV
400 ±5nA
0nA
67 ±3nA
© 03/14 Mettler-Toledo AG, Greifensee
Accessories O
2
Polarization
voltage –500mV
297 ±5nA
0nA
50 ±3nA
Printed in Switzerland
sensors