Section 6 Bottle Mode; Calibration And Validation; Onboard Automated Standards Introduction System (Oasis); Toc Calibration Protocol - Hach Anatel PAT700 User Manual

Section 6

6.1 Calibration and validation

6.1.1 Onboard Automated Standards Introduction System (OASIS)

6.1.2 TOC calibration protocol

6.1.3 TOC validation protocol

6.1.4 Conductivity calibration protocol

Bottle Mode
Bottle mode allows you to perform calibration, validation, and system suitability test
procedures on the PAT700. Proper calibration of the analyzer is critical to maintaining
optimum instrument performance. You may perform such functions automatically with the
Onboard Automated Standards Introduction System (OASIS™) using the touch-screen
interface. This method minimizes user intervention by using a prepackaged standards kit
with RFID technology. You may run calibration, validation, and system suitability test
procedures immediately or schedule them to run later.
This section provides general instructions on performing calibration and validation
procedures. Refer to the specific Standard Operating Procedure (SOP) for detailed
instructions.
• Calibration assures the accuracy of instrument's readings at regular intervals.The
PAT700 is calibrated at the factory before shipment. You do not need to perform a
TOC calibration before placing the analyzer into service.
• Validation ensures the accuracy of the calibration by challenging the calibration with
the analysis of a known standard.
• Calibration and validation involve running analyses of one or more standards and
blanks (protocols) to determine analyzer response.
• In bottle mode, the analog output retains the last online TOC, conductivity, and
temperature values, and TOC and conductivity alarms are deactivated.
Four functions are available under bottle mode: run standards, grab sample, excursion
mode, and unload bottles.
The PAT700 Onboard Automated Standards Introduction System (OASIS) is used for
performing standards tests, grab sampling, and excursion sampling. Through the bottle
mode, various bottle test functions can be selected. The OASIS system is automated
through the use of RFID technology (see
bottles with RFID tags are installed in the system, the analyzer uses RFID technology to
read and transmit data about the standards to the analyzer. This system eliminates the
need for manual data entry.
Although equipped to perform automatically using RFID tagged standards, you may also
use bottles without RFID tags by manually entering the standards data when prompted
by the analyzer.
Select up to three levels (250, 500 and 750 ppb) of a sucrose standard. For maximum
accuracy, the procedure allows up to three analysis replicates per standard.
Perform a single-point or multi-point validation of the TOC calibration using up to three
levels of sucrose validation standards.
Perform a conductivity calibration according to the guidelines established in USP Method
<645>. The procedure uses an NIST-traceable calibrated resistor for determining meter
accuracy and an NIST-traceable 100 μS/cm conductivity standard for cell constant
verification.
RFID technology, page 7). When standards
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