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The gas, temperature and barometric pressure unit values are coded as defined in the following
tables:
Note: If the instrument stops sending measurement data to the module, then after 30 seconds the module
sets the event mask to the value PROFIBUS-DP value not updated (0x80000000) bit mask.
Gas unit Value Temperature unit Value
Barometric
pressure unit
Value
bar 0 K 0 bar 0
mbar 1 °C 1 mbar 1
Pa 2 °F 2 psia 2
kPa 3 atm. 3
hPa 4 Pa 4
psia 5 kPa 5
atm. 6 hPa 6
mbar->bar 9
Pa->KPa 10
%Vbar 12
ppm Vbar 13
%Vext 14
ppm Vext 15
ppm Vbar->%Vbar 16
ppm Vext->%Vext 17
ppm 18
ppb 19
g/l 20
mg/l 21
µg/l 22
%O
2
23
%Air 24 Note: For the field “Event”, refer to the column “Bit mask value” in
Table 4 on page 109.
g/kg 25
V/V 26
%W 27
cc/kg 28
ml/l 29
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