Ionics Instruments 2004 C-7 DLM 30007-08 Rev. A
FIGURE C-7: CALIBRATE Menu for 800 Series Turbo TOC Analyzer
The TC ZERO OFFSET value will be displayed. Do not change the value from
the default value of 0.0.
Turbo Mode TC Channel Calibration
NOTE
Turbo TOC sampling is available only in on-line mode. Configure the analyzer
to sample from a container as explained in the Operation chapter but do not
place the analyzer in grab sample mode to perform TC and IC channel
calibrations.
Measure a flask of the water used to prepare standards as instructed in the
calibration chapter. Once the readings have stabilized, stop the analyzer by
pressing ENTER and selecting STOP TOC. Use HISTORY to view the data,
then average the last five TC values to determine an accurate TC value for the
water.
Prepare a nominal 2 ppm KHP standard instead of the 25 ppm standard
indicated in the calibration chapter. This may easily be accomplished by
preparing the stock solution in a 250 mL volumetric flask rather than the 100
mL flask indicated in the calibration chapter. This will produce a nominal 400
ppm stock when 0.212 grams of KHP are used to prepare the stock. Make the
IC CALIB. CONSTANT
TC CALIB. CONSTANT
TC ZERO OFFSET
CLEAR
ENTER
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