TOC EVOLUTION:
USER &
MAINTENANCE MANUAL
Page:
15/74
Instructions No.: 10844
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6.7
Calibration and Testing
The analyser can include 4 maintenance cycles.
Step No.
Cycles
Objective
Following step
Step 1
Manual Measure on
TOC standard (Phtalate)
Analysis of the oxidation
yield – Grab sample
If faulty, switch to step 2
or 3
Step 2*
Manual measure on TIC
(Sodium Carbonate)
(Not mandatory)
Grab sample
If the operation is correct,
switch to step 3
Step 3**
Zero measure (DIW)
Offset calculation on DIW
If the operation is correct,
switch to step 4
Step 4
Calibration on TOC
(Phtalate)
Calibration on TOC
End
*Step 2 may not be implemented in the device depending on the configuration.
** Only for ranges <20ppm.
The
“
Manual measure on TIC” and “Zero measure”
may not be present on the analyser
according to the situation. If this is the case, only use the
“
TOC Calibration
”
and
“
Manual Measure
TOC
”
Zero measure*
TOC calibration
Manual Measure TOC
Manual Measure
TIC*
Standard
Deionized Water
See value on test
certificate
Middle of range / Client
standard
Middle of range
Recommended
frequency
Once per month and
During each reagent
time
Once per month and
During each reagent
time
Once per month and
During each reagent
time
(If a failure occurs)
Duration
6-10 min
6-10 min
6-10 min
6-10 min
The calibration method is described in section 11.2.1 Maintenance Manual / Regular Maintenance /
Calibration.