Hach BioTector B3500e, User Manual

Page: 138 / 163

Page 138
29_PRESSURE TEST OFF There are two pressure tests carried
out in BioTector. One is a daily
pressure test and the other, called
pressure check, is carried out every
analysis cycle. This function relates to
the daily pressure test. Pressure/Flow
Test cycle has been switched off. See
Section 8.3.4.5 Pressure/Flow Test
Program for details.
Activate the Pressure/Flow Test
cycle by programming the factory
flow settings in Pressure/Flow
Test Program menu.
System factory configuration settings
are available in the MMC/SD card
shipped with the BioTector.
30_TOC/TC SPAN CAL FAIL
31_TIC SPAN CAL FAIL
TOC/TC/TIC Span Calibration result is
outside the specified TOC/TC/TIC
BAND defined in Span Program menu.
See Section 8.3.4.3 Span Program
for details.
Check the concentration of the
standard solution used.
Check the settings in Span
Calibration menu.
Check the operation of the
BioTector.
33_TOC/TC SPAN CHCK
FAIL
34_TIC SPAN CHCK FAIL
TOC/TC/TIC Span Check result is
outside the specified TOC/TC/TIC
BAND defined in Span Program menu.
See Section 8.3.4.3 Span Program
for details.
Check the concentration of the
standard solution used.
Check the settings in Span
Calibration menu.
Check the operation of the
BioTector.
42_ZERO CAL FAIL Zero Calibration result is outside the
specified ZERO BAND defined in Zero
Program menu. See Section 8.3.4.2
Zero Program for details.
Check the stability of the zero
reactions and the quality of the
reagents used.
Check the settings in Zero
Program menu.
Repeat the zero calibration cycle.
43_ZERO CHCK FAIL Zero Check result is outside the
specified ZERO BAND defined in Zero
Program menu. See Section 8.3.4.2
Zero Program for details.
Check the stability of the zero
reactions and the quality of the
reagents used.
Check the settings in Zero
Program menu.
Repeat the zero calibration cycle.
50_TIC OVERFLOW High TIC reading at the end of the TIC
phase, even though the TIC sparge
time has been automatically extended
to its maximum time of 300s. See
Section 8.3.6 Reaction Check for
details.
Exceptionally high TIC.
Check system operation ranges in
System Range Data menu.
Increase operation range to
reduce injected sample volume.
Increase the TIC SPARGE TIME
in System Program, System
Program 1 menu.
51_TOC OVERFLOW High TOC readings at the end of TOC
phase, even though the TOC time has
been automatically extended to its
maximum time of 300s. See Section
8.3.6 Reaction Check for details.
Exceptionally high TOC.
Check system operation ranges in
System Range Data menu.
Increase operation range to
reduce injected sample volume.
Increase the TOC SPARGE TIME
in System Program, System
Program 1 menu.