Argo-Hytos OPCom - Page 67

Subject to change · V 2.02.20 · EN
Page 67
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Bit Nr. MSB 14 13 12 11 10 9 8
15
ERC 1 -- -- -- -- ISO(i+1)>=
ISO(i)
Flow too
small
Flow too high Concentration
> =ISO 23
ERC2 -- -- -- -- -- -- -- --
ERC3 -- -- -- -- -- -- -- --
ERC4 Temperature
alarm
Concentration
alarm
Power Up
=
1 before first
measurement
Alarm mode
0= Standard
1= Filter
Measuring
mode
=
button
Measuring
mode
=
Digital I/O
Measuring
mode
=
time controlled
Running
measurement
7 6 5 4 3 2 1 LSB
0
-- -- -- -- -- -- -- --
-- -- -- -- -- -- Last
threshold
Calibration
(S5)
reached
First
threshold
Calibration
(S1)
reached
-- -- -- -- -- -- -- --
Meas. mode
=
Automatic
-- Temperature
<-20°C
Temperature
>80°C
Detector
voltage
too high
Detector
voltage
too small
Laser
current
too small
Laser
current
too high
ERC 0x 1 0 2 A
Binary 0 0 0 1 0 0 0 0 0 0 1 0 1 0 1 0
Bit No. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Meaning:
Bit 1 = 1  Laser current too small
Bit 3 = 1  Detector voltage too high
Bit 5 = 1  Temperature <-20°C
Bit 12 = 1  Alarm mode = filter
Table 47: ERC Decoding table
Table 48: Example of an ERC decoding