Ionics Instruments 2004 Page 3-11 DLM 30007-08 Rev. A
The computer, in conjunction with the DataPro software, allows control of the
analyzer and the autosampler. The autosampler has a capacity for 26 samples
(plus 1 clean-up sample) using 29 x 81mm screw-capped 40 mL sample vials
with Teflon-lined septa or 71 samples (plus 1 clean-up sample) using 16 x 125
mm screw-capped 17 or 18 mL vials with Teflon-lined septa. A stainless steel
needle is used to transfer samples from the sample vials into the analyzer.
Results are displayed and stored on the computer via the software, stored on
the analyzer's internal RAM card, and may be printed.
DataPro consists of three main parts: the Protocol File Editor, the Result
Viewer, and the Message Area. Use the Protocol File Editor to create or edit
the sampling sequence and to store the protocol file on the hard drive. Use the
Results File Viewer to review and print the results from previous analyses.
Watch the Message Area for status information while running the program and
the analyzer.
Multistream
A single analyzer can be used to measure different water streams using the
Multi-stream Sample Inlet System. The system consists of a programmable
stream sampler for 4 sample streams and TOC analyzer firmware for
controlling the sampler and reagent flow rates. The stream selector valve is
housed in an environmental rated enclosure equipped with a controller and
LEDs indicating display. A 5-way stainless steel ball valve is used to select
the sample streams.
Using the firmware in the TOC, it is possible to set the measurement
conditions for each sample stream, select the sampling order, set alarm levels
for individual streams and the duration for TOC, TC and IC measurements for
the different streams. The TOC analyzer will calculate and report averages
and standard deviations for TOC, TC, and IC for each stream. The controller
also has a manual override that permits the user to select a single sample
stream for measurements.
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