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Metrohm 899 Coulometer for Trace Water Content Analysis
Product Description
The Metrohm 899 Coulometer is a compact instrument designed for high-precision trace water content determination in liquids, solids, and gases. Key features include:
- Generator Electrode Output: Auto variable DC or pulsating DC at 100, 200, or 400 mA
- Temperature Range: –150 to +250 °C
- Stirrer Speed: Approximately 1700 to 1900 rpm with 15 adjustable steps
- Measurement Range: 10 µg to 200 mg water
- Electrodes: Integrated indicator and generator electrodes without diaphragm
- Measurement Mode: Supports Ipol mode with adjustable polarization current
- User Interface: Mini DIN, USB OTG, and Remote connectivity ports
- Compliance: GLP-compliant with adjustable parameters and precise calibration capabilities
- Housing: Durable PBT casing with stainless steel base for enhanced robustness
- Additional: Integrated magnetic stirrer eliminates the need for external accessories, saving bench space (smaller than A4 footprint)
This system performs absolute coulometric titration without the need for titer determination, ensuring precise and reliable moisture quantification with an intuitive user interface suitable for laboratory operations.
Item Stats
Product details
| Measuring Mode | Ipol (adjustable polarization current) |
| Polarization Current | 5, 10, 20, or 30 uA |
| Generator Electrode Output | Auto variable DC or pulsating DC at 100, 200, 400 mA |
| Maximum Generator Current | 400 mA |
| Temperature Sensor Type | Pt1000 |
| Temperature Measuring Range | –150 to +250°C |
| Temperature Accuracy | ± 0.2°C (–20 to +150°C) |
| Stirrer Speed Range | Approx. 1700 to 1900 rpm, 15 steps |
| Housing Material | PBT (base: stainless steel 1.4301) |
| Ambient Operating Range | +5 to +45°C, max 85% humidity |
| Storage Temperature | –20 to +60°C |
| Interfaces | MSB (Mini DIN), USB OTG, Remote |
| Dimensions (W x D x H with holder) | 5.7 x 11.1 x 7.7 in. (14.4 x 28.2 x 19.5 cm) |
| Weight | 6.17 lb. (2.8 kg) |
| Electrical Requirements | 24 V DC (external power supply, input 20–28 V, max 36 W) |
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