Oxy 3690 MP - Measuring equipment Greisinger - Free user manual and instructions
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| Product Type | Oxygen Meter |
| Model | Oxy 3690 MP |
| Brand | Greisinger |
| Measurement Range | 0.0 to 100.0% O2 |
| Resolution | 0.1% O2 |
| Accuracy | ±0.2% O2 (at 20°C) |
| Display | LCD, 4-digit |
| Power Supply | 9V battery (6LR61) |
| Battery Life | Approx. 200 hours continuous use |
| Dimensions | 142 × 71 × 26 mm |
| Weight | 235 g (with battery) |
| Operating Temperature | 0 to 50°C |
| Storage Temperature | -20 to 60°C |
| Sensor Type | Electrochemical cell |
| Key Functions | Hold, Min/Max, Auto-off, Calibration |
| Calibration | Manual calibration in fresh air (20.9% O2) |
| Maintenance | Periodic sensor replacement; clean housing with damp cloth |
| Safety | CE compliant; not for medical use |
| Accessories Included | Battery, protective cap, manual |
| Spare Parts Availability | Sensor and battery available from Greisinger service |
Frequently Asked Questions - Oxy 3690 MP Greisinger
How do I calibrate the Oxy 3690 MP?
To calibrate, turn on the device and hold it in fresh, clean air (20.9% O2). Press the CAL button until the display shows 'CAL' and the value stabilizes. The device automatically adjusts to 20.9%.
What type of battery does the device use?
It uses a standard 9V battery (6LR61). For best performance, use alkaline batteries.
How often should I replace the oxygen sensor?
The electrochemical sensor typically lasts 1-2 years depending on usage and storage conditions. Replace it when calibration fails or readings become unstable.
Can I measure oxygen in liquids?
No, the Oxy 3690 MP is designed for gaseous oxygen measurement in air. Do not immerse the sensor in liquids.
What does the 'Hold' function do?
The Hold function freezes the current reading on the display. Press HOLD to capture a value; press again to release.
Why does the device show inaccurate readings?
Common causes: sensor expired, low battery, need for calibration, or exposure to extreme temperatures. Check battery, recalibrate, and if still inaccurate, replace the sensor.
Is the device suitable for medical use?
No, the Oxy 3690 MP is a general-purpose measuring instrument and is not certified for medical applications. For medical oxygen monitoring, use a dedicated medical device.
How do I clean the device?
Use a soft, damp cloth to clean the housing. Do not use solvents or abrasive cleaners. Avoid moisture entering the sensor area.
What is the auto-off feature?
To conserve battery, the device automatically turns off after 10 minutes of inactivity. Press any button to wake it.
Where can I purchase replacement sensors?
Replacement sensors can be ordered from Greisinger or authorized distributors. Use only genuine Greisinger sensors for accurate measurements.
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USER MANUAL Oxy 3690 MP Greisinger
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Product information
Brand : Greisinger
Model : Oxy 3690 MP
Category : Measuring equipment