Introduction
The Quantek Instruments 901 Headspace Oxygen Analyzer is a compact, handheld device designed for measuring residual oxygen levels in sealed packages. Its portable design allows for on-site analysis, providing accurate readings for quality control and process monitoring. This manual provides essential information for the proper setup, operation, maintenance, and troubleshooting of your analyzer.
Important Safety Notice: This product is not approved or intended for, and should not be used for medical, clinical, surgical, or other patient-oriented applications.
Product Overview
Image: The Quantek Instruments 901 Headspace Oxygen Analyzer, a black and blue handheld device with a digital display showing "21.0 PERCENT O₂", two control buttons labeled "POWER" and "PUMP", and indicator lights for "Low Batt" and "Sampling". A white sampling probe with a thin tube extends from the top right.
1. Setup
1.1 Unpacking and Inspection
Carefully remove all components from the packaging. Verify that all included items are present:
- One sampling probe assembly
- Two needles
- Two probe filters
- 200 foam seal pads
- Four rechargeable NiCad batteries
- One charger with 115 VAC adapter
1.2 Battery Installation and Charging
- Open the battery compartment located on the back of the analyzer.
- Insert the four rechargeable NiCad batteries, ensuring correct polarity.
- Close the battery compartment securely.
- Connect the charger to the analyzer and plug the 115 VAC adapter into a power outlet. Allow the batteries to charge fully before first use.
Note: The analyzer must always be used with rechargeable NiCad batteries.
1.3 Attaching the Sampling Probe
- Carefully attach one of the needles to the sampling probe assembly.
- Connect the sampling probe assembly to the designated port on the top of the analyzer. Ensure a secure connection to prevent leaks.
- Install a probe filter into the sampling probe assembly.
2. Operating Instructions
2.1 Powering On/Off
- To power on the analyzer, press the POWER button. The display will illuminate and show the current oxygen percentage.
- To power off, press and hold the POWER button until the display turns off.
- The analyzer features an auto shut-off function after 45 minutes of non-use to conserve battery life.
2.2 Measuring Oxygen Levels
- Ensure the analyzer is powered on and the sampling probe is correctly attached with a fresh needle and filter.
- Place a foam seal pad on the package surface where you intend to sample.
- Carefully pierce the package through the foam seal pad with the sampling needle.
- Press the PUMP button to activate the internal pump. The "Sampling" indicator light will illuminate. The pump will draw a sample from the package headspace to the sensor.
- Observe the digital display for the oxygen percentage reading. Allow the reading to stabilize.
- Once the reading is stable, release the PUMP button.
- Carefully withdraw the needle from the package.
The analyzer is capable of measuring oxygen levels from very low to very high concentrations (50% to 100%) without sensor overload.
3. Maintenance
3.1 Probe Filter Replacement
Regularly inspect and replace the probe filter to ensure accurate readings and prevent contamination of the sensor. Replace the filter if it appears discolored or clogged.
3.2 Cleaning
- Wipe the exterior of the analyzer with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Ensure no liquids enter the analyzer's ports or openings.
3.3 Battery Care
- Recharge the NiCad batteries when the "Low Batt" indicator illuminates.
- For long-term storage, ensure batteries are fully charged and store the analyzer in a cool, dry place.
4. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Analyzer does not power on. | Dead or improperly installed batteries. | Check battery installation and charge the batteries. Ensure only NiCad batteries are used. |
| "Low Batt" indicator is on. | Batteries require charging. | Connect the analyzer to the charger and allow batteries to fully charge. |
| Inaccurate or fluctuating readings. | Clogged probe filter, loose probe connection, or sensor issue. | Replace the probe filter. Check that the sampling probe is securely connected. If issues persist, contact support. |
| Pump does not activate. | Low battery or internal malfunction. | Ensure batteries are charged. If the problem continues, contact support. |
5. Specifications
- Model Number: AO-10360-20
- Product Type: Lab Supply
- Measurement Range: Residual oxygen levels in packages (capable of 50% to 100% without sensor overload)
- Power Source: Four rechargeable NiCad batteries
- Charger: 115 VAC adapter
- Auto Shut-off: After 45 minutes of non-use
- Dimensions (L x W x H): Approximately 12.38" x 12.12" x 6.45" (Package Dimensions, actual unit dimensions may vary slightly)
- Weight: Approximately 3.85 lbs (Package Weight, actual unit weight may vary slightly)
- Included Accessories: One sampling probe assembly, two needles, two probe filters, 200 foam seal pads, four rechargeable NiCad batteries, charger with 115 VAC adapter.
- Country Of Origin: United States
6. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your authorized Quantek Instruments dealer or visit the official Quantek Instruments website. Please have your model number (AO-10360-20) and purchase date available when contacting support.
