Quantek - Model 902D -Benchtop Oxygen and CO2 Headspace Analyzer

Easy Sampling & Analysis
The Model 902D analyzer sample probe is tipped with a particulate filter and luer fit syringe needle with side-port holes to prevent plugging. When the pump is activated, sample is drawn through the probe and tubing and then to the oxygen sensor.

The pump is electronically timed to draw in the precise amount of sample required for the analysis, and then turns itself off after the pre-set sampling time (5 to 10 seconds). The O2 and CO2 concentration is read on the display within 20-25 seconds.

About the Sensors
The solid-state infrared CO2 sensor has no moving parts, a compact optical cell, and microprocessor-based calibration factors using a 6th order polynomial equation and 32 bit processor to linearize the full range measurement up to 100%.

Both sensors are unaffected by high levels of background gases such as nitrogen.

The expected life of the CO2 sensor is theoretically unlimited, as it contains no moving parts.

The expected electrochemical O2 sensor life is typically 5 years, unlike other analyzers with an electrochemical sensor that last 1-2 years.

About the Pump
The rugged miniature diaphragm pump has electronically controlled timing function to operate only when sampling. It provides high flow rate and long operating life.

The pump is electronically timed to draw in the amount of sample required for the analysis, and then turns itself off after the pre-set sampling time (5 to 10 seconds).

Optional Rechargeable Battery
If equipped with the optional battery, the 902D can within transported to your facility to conduct testing with no AC outlet available. Totally sealed, long-life battery (optional) accepts full or partial charging cycle. Charger module plugs into standard 115V outlet for charging or continuous operation, though it can accept 100-240V for worldwide use.

Microprocessor/Electronics
Micro-processor based electronics provide sensor signal processing, battery charging, pump timing and on/off control for high accuracy and reliability with minimal component use and reduced size and cost.

• Carbon Dioxide Sensor Type: Solid-state Infrared
• Accuracy - Carbon Dioxide: Accuracy (for 0-100% range) ± 1% of reading, or ± 0.2% CO2 (whichever is greater), Accuracy (for 0-20% range) ± 1% of reading or ± 0.1% CO2 (whichever is greater)
• CO2 Minimum Detection Limit: 0.1% (0-100% range) or 0.01% (0-20% range)
• CO2 Calibration Controls: Potentiometer SPAN adjustment for CO2.
• CO2 Calibration Frequency: Every 12 months; calibration gas recommended.
• Expected Lifetime (oxygen): 4-5 years
• Oxygen Range: 0.0 to 100%
• Oxygen Sensitivity: 0.1% O2
• O2 Resolution: 0.1% O2 (optional .01%)
• Analog Output: Not Available
• Accuracy: : +/- 1% of reading; +/- 0.1% absolute below 10.0%
• Drift: less than 0.4% per year
• Oxygen Sensor Type: Proprietary Electrochemical
• Response Time: 25 seconds to T95
• O2 Sensor Lifetime: 4-5 Years
• O2 Sensor Body: ABS Resin
• Sample Connection: Sample Probe
• Sample Method: Pump
• Sample Pump: Miniature diaphragm type with ~5cc/sec flow
• Pump Timing: 2-12 second adjustable pump time, potentiometer on back of analyzer
• Minimum Sample Required: 15cc
• Sampling Assembly: Probe with female luer connection for filter and needle, low volume PTFE tubing
• Oxygen Calibration Controls: SPAN adjustment, zero adjustment
• Instrument Calibration: Calibrates with room air; coarse SPAN adjustment on back; fine span adjustment on side; ZERO adjustment on side (calibration gas recommended for CO2)
• Exhaust port: Vents to air
• Power Supply: 100-240V (50-60Hz) Charger included, with US or international interchangeable plug adapter (upon request)
• Backup Power: Optional 12V internal battery pack
• Battery Operation: Optional
• Input Voltage: 100-240V, 50-60Hz
• Battery Life: 8-12 hours before recharging
• Measures: O2, CO2: O2, CO2
• Form Factor: Benchtop
• Size: 9.8W x 4H x 10L in. (249 x 102 x 254 mm)
• Weight: 9.8 lb. (4.4 Kg)
• Warranty: 2 years, parts and labor
• Standards: CE, RoHS
• Included Consumables: 200 foam septas, 2 luer fit needles, 2 particulate filters, 2 liquid block filters
• Options: Battery, 0.01% resolution for O2
• Included Documentation: Owners manual (includes operating instructions with detailed calibration instructions, calibration certficate, precautions), NIST calibration certificate
• Origin of Goods: Our products are manufactured in the U.S.A.
• Products by Gas: Oxygen and CO2
• Products by Applications: Headspace / Package

• Algae Experiments
• Baked foods
• Biofuel
• Bioreactors
• Bottles
• Cannabis
• Canned Goods
• Carbon Capture and Storage
• Cell Culture
• Cheese
• Chicken
• CO2 Mitigation
• Coffee
• Controlled Atmosphere rooms
• Dairy products
• Desserts
• Fermentation
• Fruit Storage areas
• Fyrite Replacement
• Gas Blending
• Glove Box
• Greenhouse CO2 Research
• Incubators
• Inert gas systems
• Meats
• Nitrogen Generation
• Nitrogen purged enclosures
• Offgas Analysis
• Oxygen generators
• Pet Foods
• Prepared Meals
• Process Applications
• Produce
• Reflow ovens
• Sandwich Packages
• Snack foods
• Welding

• Built-in pump, sample probe.
• Starter pack of 200 foam septas
• 2 needles.
• 2 small moisture filters,
• 2 small moisture blocking filters,
• Power supply / charger (for analyzers with optional internal battery) – (International compatible 100-240V)
• Certificate of Calibration (traceable to NIST standards)

Optional Items

• Optional Internal battery pack (NiMH), capable of 2100 cycles
• Optional upgrade oxygen LCD to .01%”