GE Sievers 500 RL, Operation And Maintenance Manual, Page: 70 / 186

GE Analytical Instruments ©2010 70 of 226 DLM 74001-04 Rev. A
Chapter 4: Basic Analyzer Operation
1. Select the Setup tab (see Figure 11).
2. If you are running the Analyzer with a continuous water source, select an On-Line mode:
• Select On-Line to measure TOC continuously and return measurement results every 6 minutes.
• Select On-Line Timed to display a single TOC measurement at specific times of the day. Press the
Configure button and specify the hour and minute for the first measurement; then, specify the time
interval for successive measurements ( 30 Minutes , 1 Hour , 4 Hour , 8 Hour , 24 Hour ). At each
specified interval, the Analyzer displays data for the measurement that occurred at that time.
• Select On-Line Averaged to return the averaged value of the last 10 TOC measurements over a
specific time interval. Press the Configure button and specify the hour and minute for the first
measurement, then specify the time interval. At each specified interval, the Analyzer displays data
reflecting the average TOC value since the last specified interval. Also press the
Threshold button to
specify a TOC level above which the Analyzer will switch to On-Line mode for the remainder of the
interval. When the threshold is exceeded, the Analyzer gives the average value for the interval thus
far and then returns measurements every 6 minutes.
3. If you are sampling from a vial in the Analyzer’s iOS or Super iOS System, press the Grab button. Follow
the instructions under “Grab Mode Measurement Settings” on page 70 for configuring Grab mode. Grab
mode is not available for configurations with the Sample Inlet Block.
4. Press the Menu button to exit and save your settings.
Figure 11: The Setup Tab
Grab Mode Measurement Settings
When selecting Grab mode (available on configurations with an iOS or Super iOS ), you need to specify the
number of replicate measurements and rejects as follows:
1. On the Setup tab, press the Configure Mode button.