
Floc Tester ET840
Controlled and Reproducible Testing
The ET840 allows two stirring speeds to be programmed to reproduce different stages of the treatment process. Speed changes can be controlled automatically by time or carried out manually, providing flexibility for different testing procedures.
Digital speed adjustment from 20 to 250 rpm and a programmable timer from 1 to 240 minutes, with continuous operation also available, give operators precise control over test conditions.
Four stirring positions allow multiple samples to be compared simultaneously, while the continuously adjustable stirrer height accommodates beakers from 500 mL to 1,500 mL.
Enhanced Sample Visibility
A key feature of the ET840 is its flexible rear and floor lighting, providing clear illumination of samples throughout the test. Improved visibility makes it easier to observe floc formation, settling behaviour and differences between samples.
A large illuminated display provides clear visibility of operating settings, while the intuitive, language-independent controls make the instrument straightforward to operate during routine laboratory testing.
Combined with corrosion-resistant stainless steel stirrers and a robust laboratory design, the ET840 provides a practical solution for regular coagulation and flocculation studies.
Key Features
- Coagulation-flocculation testing in accordance with ASTM D2035-19
- Four stirring positions for simultaneous sample comparison
- Suitable for 500–1,500 mL beakers
- Digital speed adjustment from 20–250 rpm
- Two programmable stirring speeds
- Time-controlled or manual speed changes
- Programmable timer from 1–240 minutes
- Continuous operation available
- Continuously adjustable stirrer height
- Corrosion-resistant stainless steel stirrers
- Flexible rear and floor lighting for improved sample visibility
- Large illuminated display
- Intuitive, language-independent operation
- Robust design for routine laboratory use
Applications
- Drinking Water Treatment
- Wastewater Treatment
- Raw Water Treatment
- Coagulation and Flocculation Studies
- Flocculant Selection
- Chemical Dosing Optimisation
- Laboratory Treatment Simulations
- Water Treatment Process Development
| Order Code | Description |
|---|---|
| 2419113 | ET840 benchtop with 4 stirring positions |
| 419165 | 1000ml, glass beaker |
| 416166 | 1000ml, plastic beaker |
| 419167 | 1500ml, glass beaker |


