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Summary of Contents for Quantek 906
- Page 1 MODEL 906 OPERATING INSTRUCTIONS 0-20% or 0-100% Quantek Instruments 183 Magill Drive Grafton, MA 01519 Tel: (508) 839-3940 Fax: (508) 819-3444 Email: sales@quantekinstruments.com 2022...
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Page 2: General Description
GENERAL DESCRIPTION The Quantek Model 906 is a battery or AC operated, portable carbon dioxide analyzer used for the measurement of CO in many different applications. The unit is powered by 115 or 240 Vac or an internal NiMH battery pack (optional), with typically 8-12 hours of operation before recharging is required. - Page 3 PRECAUTIONS Follow these guidelines to prevent damage to the unit: 1. Do not suck liquids into the unit through the sample port. 2. Turn the unit off before plugging or unplugging the charger 3. Do not immerse in water or spray water on the unit 4.
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Page 4: Operation
OPERATION 1. Press the POWER switch to start unit. The meter reading at this point will not be stable. Let the unit warm up. The CO channel needs 1 minute for the infrared sensor to stabilize. 2. If you have a pump: Press the PUMP switch or flow clean air or nitrogen through the inlet port. - Page 5 4. Testing a sample if you do not have a pump: For continuous measurement of a sample stream, the sample must be at some positive pressure to force a flow through the analyzer if not equipped with a pump. NOTE: It is advised that you either “push” your sample through the instrument, or use the pump –...
- Page 6 possible, but requires several modifications prior to shipping. The analyzer contains an internal plumbing bypass, allowing diversion of flow inside the analyzer. However, the maximum recommended flow rate is about 1000cc/min. In some instances (where the flow rate is very low), the bypass may be omitted in manufacturing.
- Page 7 Blunt tip needles are also provided with a luer hub which can be used to connect the white disc filters into the sample stream. A 60 cc gas tight plastic syringe is provided to bring a sample to the unit. The tip connects to the inlet port with short plastic connector, provided.
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Page 8: Calibration Setting
CALIBRATION SETTING The CO calibration can be adjusted as required by turning the CO SPAN potentiometer located on the rear panel. However, you must first introduce a known concentration of CO , using preferably a calibration gas which contains the concentration close to that which you will want to measure later. - Page 9 about 18% if the CO concentration is balanced with Ar, or about 22% with a balance of He. For units with a pump: The preferred calibration method is to attach the sample gas directly to the inlet. “Push” the calibration gas through the instrument without pressing the pump button.
- Page 10 potentiometer in the space labelled “CO2 ZERO” on the back. For some applications and sensors, there is a potentiometer adjustment for the CO zero setting. If you have a potentiometer installed, simply flow nitrogen through the instrument and adjust the potentiometer so that the instrument reads 0.0% or 0.00%.
- Page 11 TWO MODE RED PUMP SWITCH (optional) If equipped with a red pump switch, it is a two mode operation – pressing it lightly will activate the pump according to the timing set on the pump time potentiometer. “Clicking” it into place will set the pump to run continuously until “unclicked”.
- Page 12 One solution to this is to purge with 5L/min of nitrogen, allow the instrument to sit for 10 minutes, then purge again with pure nitrogen. This “double purge” should result in the instrument staying very close to zero. INTERNAL INLINE DIRT / MOISTURE FILTER This analyzer contains an internal filter (25mm dia., .45μm pore size) that provides a second...
- Page 13 If the flow rate of your analyzer seems to have dropped precipitously, and/or the response time of the analyzer is much slower, and/or the pump sounds like it is laboring, then your internal filter may be clogged. Follow these steps to replace it with the spare provided: 1) Unplug the analyzer and discharge it by pressing the power button.
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Page 14: Filter Replacement
If the problem is not solved, then your analyzer may have a different problem and we recommend that you send it in for service. Please contact us if you need additional filters. FILTER REPLACEMENT The filter (either the internal or external filter) should be replaced if any part of it is cracked. -
Page 15: Analog Outputs (Optional)
ANALOG OUTPUTS (OPTIONAL) Analog outputs of 0-1, 0-5, 0-10 Vdc (nominal) or 4-20mA, are located on the rear panel. Looking at the back from left to right, the terminals are: 1. CO ground 2. CO + output The output voltages are nominal at 1or 5 volts, and require a high impedance connection. -
Page 16: Operating Supplies
Shipping and Mailing Address: Quantek Instruments 183 Magill Drive Grafton, MA 01519 Support available through: sales@quantekinstruments.com Or by calling 508-839-3940 OPERATING SUPPLIES 9005 Particulate filter, pkg. of 5 9077 Blunt Needles, pkg. of 3 9088 Package of 15 PTFE liquid &...
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