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CFA3000 ISE Analyzer
Instruction Manual
3.2 Check Sample Stream
• Check that the sample intake tube is 1½ to 2 inch (3.81 to 5.08 cm) into the liquid.
• Sample should just overflow the overflow tube. There should be no particulate or bubbles in the tube.
Using a MultiStream Overflow Sampler
Multistream analysis requires an overflow sampler assembly that will accommodate the extra sample streams.
One multistream chamber allows for up to three sample streams; for 4 6 streams, use two chambers.
The sample tubes connect to solenoid valves in the reagent cabinet. The analyzer uses the valves to cycle
through all sample lines, in sequence. First, stream 1 valve is opened, and Valve 1 LED on the keypad panel is
lit. When the measurement is complete, Valve 1 will be closed, and Valve 2 is opened to begin sampling stream
2. The keypad panel will show Valve 1 LED lit as the Displayed Stream, and Valve 2 LED is lit for the Selected
Stream.
LED's on the valve pump assembly light up when a particular fluid is taken up by the valve pump assembly.
Figure 32 identifies the valve pump LED designations.
3.2.1 Check Fluidics
Check the following:
• Liquid should overflow in overflow chamber.
• Waste tubing is in waste pipe.
• Sample tube is connected to Overflow Sampler Assembly for single stream; and, for multistream, it is
connected to Common (C) port of sample solenoid valve #1, on left side of reagent cabinet.
• System has no leaks.
3.2.2 Check Reagents
Check the following:
• One hole has been punched in all reagent cap liners.
• Reagent straws are placed in appropriate reagent containers.
• High and low standard tubing are in appropriate containers.
3.2.3 Turn On Power
1. Open the keypad panel door to expose the circuit boards.
2. Press each board in to ensure proper seating.
3. Simultaneously press Power button on the back wall of upper cabinet and Reset button on the CPU board
(yellow ejector), then release.
4. First release the Power button, then the Reset button. The Keypad should display ”H E L O", then four
dashes " ".
5. Pull pump forward and check leak detector by dipping finger in tap water and touching detector behind
pump. Leak detector LED on keypad panel will light up.
6. Turn main power switch to OFF.
7. Dry leak detector
8. Wait 20 seconds, then switch main power switch back to ON. Leak detector LED should be off.