Alarm Program - Hach BioTector B7000i User Manual

8.2.9 Alarm Program

ALARM 1 TOC
ALARM 2 TIC
ALARM 3 COD
..................... ...
ALARM 6 BOD
CO2 ALARM 1
CO2 ALARM 2
CO2 ALARM 3
.....................
CO2 ALARM 6
--> OUTPUT DEVICES
STREAM 1  If ALARM 1-6 is not programmed in Output Devices menu, this
20.0mgC/l
STREAM 2
10.0mgC/l
 ALARM 1-6 operates on a specific stream and reaction result
STREAM 1
70.0mgO/l
......
STREAM 2
35.0mgO/l
 In ALARM 1 20.0mgC/l setting, 20mgC/l defines the desired
50.0ppm  If CO2 ALARM 1-6 is not programmed in Output Devices menu,
100.0ppm
150.0ppm
......
 CO2 ALARM 1-6 is a predictor function of a possible high
250.0ppm
 If programmed, the alarm level (ppm CO
 Note that in TIC & TOC and VOC analysis types, the CO
 Output Devices is a link to System Configuration, Output
option will not be available in this menu. See section
Output Devices for details.
type. In "ALARM 1 TOC STREAM 1" setting, TOC is the desired
reaction result, which can also be programmed as TIC, TC,
VOC, COD, BOD, LPI, LP or TOCk (TOC in kg/h). STREAM 1 is
the selected stream.
COD/BOD/LPI/FLOW Program
alarm activation level. The concentration level determines the
alarm condition, where the Alarm Relay is set or reset at the end
of each reaction once the calibrated result is known. In this
example, ALARM 1 relay is activated when the TOC result of
STREAM 1 exceeds 20mgC/l concentration level.
this option will not be available in this menu. See section
Output Devices for details.
TOC/TC (COD or BOD if programmed) level for a specific
stream. By default, this function is disabled by 0.0ppm setting. If
programmed, it provides an earlier warning of an unusually high
TOC result from the rising slope of the CO
during the reaction.
selected carefully considering the temperature effect, which
could be significant on the CO
margins needs to be given for the settings which will create an
actual early warning for an unusually high reading. At the end of
the reaction, the CO2 Alarm Relay status is maintained or reset
depending on the reading. In addition, this function is only
suitable for multi-stream systems operating on fixed ranges, or
systems operating on a single range. The use of this function is
not recommended for systems which uses automatic range
change.
used for the CO2 ALARM 1-6 is the TOC CO
TC – TIC analysis type, the CO
Devices menu.
See Section
for details.
peak generated
2
peak) need to be
2
peaks. In other words, enough
2
2
peak. In TC and
2
peak used is the TC CO peak.
2 2
8.3.5
8.2.4
8.3.5
peak
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