Gravimetric diluters
Gravimetric diluters – accurate and reproducible sample preparation
Interscience gravimetric diluters (DiluFlow series) are designed specifically for microbiology, cosmetics and food industry laboratories where accurate, rapid and traceable sample preparation is essential.
Gravimetric dilution is based on weight measurement, eliminating errors associated with volume measurement and ensuring maximum accuracy, repeatability and standards compliance.
Features:
- Automatic, weight-based dilution
- Faster sample preparation for high sample throughput
- Excellent reproducibility for routine testing
- Complies with ISO, HACCP and microbiological standards
- Reduces operator errors
Applications:
- Microbiological testing of food
- Raw material and finished product control
- Pharmaceutical and cosmetics QC
- Research and reference laboratories
- HACCP- and ISO-based quality control
DiluFlow systems are compatible with other Interscience sample preparation and microbiology solutions (e.g. bags, homogenisers and accessories), enabling a complete workflow to be built using products from a single manufacturer.
Contact us, and we will help you choose!
Available models:
| Feature Model | DiluFlow 3 kg | DiluFlow Pro 5 kg | DiluFlow Elite 5 kg | DiluFlow Elite 1 kg |
|---|---|---|---|---|
| Configuration | Single-pump | Dual-pump | Single-pump | Dual-pump |
| Resolution (up to 200 g) | 0.01 g | |||
| Weighing range | 0.1 to 3000 g | 0.1 to 5000 g | 0.1 to 1000 g | |
| Max. load without support | 4500 g | 7000 g | 1500 g | |
| Weighing accuracy | 0- 100 g: ± 0.05 g 100- 3000 g: ± 0.1% | 0 -100g: ± 0.05 g 100- 5000 g: ± 0.1% | 0 -20 g: ± 0.01 g 20- 1000 g: ± 0.1% | |
| Dilution ratio | 1/2 – 1/99 | 1/2 – 1/1000 (custom ratios can also be set) | ||
| Minimum sample weight for dilution | 5 g | 0.5 g | ||
| Minimum sample weight for dispensing | 5 g | |||
| Dilution / dispensing accuracy | >99% (in Standard or Accurate mode, under optimal conditions) | |||
| Time to dilute a 25 g sample to 1/10 | <9s (Booster Kit + Fast mode) | <8s (Booster Kit + Fast mode) | ||
| Time to dilute a 375 g sample to 1/10 | – | <80s (Booster Kit + Fast mode) | <75s (Booster Kit + Fast mode) | – |
| Maximum number of pumps | 2 built-in | 2 built-in + 4 external | ||
| Dilution / dispensing modes | Fast / Standard / Accurate | |||
| Spare parts availability | 10 years | |||
| Standards compliance | ISO 7218, ISO 6887 | |||
| Traceability (traceability) | Printer / monitoring software (Excel™, OpenOffice™, CSV export) |
Printer / Excel™, CSV / USB export / bidirectional LIMS connection | ||
| LIMS connection type | – | File sharing, web service | ||
| Exported data | Sample weight Total weight Dilution ratio Dilution accuracy Use of right or left pump (with monitoring software) Sample number Operator name Date Time |
Sample weight Total weight Dilution ratio Dilution accuracy Use of right or left pump (with monitoring software) Sample number Operator name Date Time Diluent name Diluent batch number Date of last calibration Name of program run |
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DiluFlow – Available accessories and expansion options
DiluFlow gravimetric diluters operate as modular systems, allowing the instruments to be expanded with a wide range of accessories and optional modules to meet laboratory workflow and documentation requirements.
Documentation and data entry
- Thermal printer (with RS232 and USB connections)
- Thermal paper rolls for printer
- Labels and label printing solutions
- Barcode scanner (1D / 2D)
- Handheld trigger (Handy Gun) – electronic start button
- Foot pedal – for hands-free operation
Dilution and liquid handling
- Booster Kit – for accelerated dilution cycles
- External pump module for diluent
- 6-nozzle holder – for simultaneous use of multiple dispensers
- Adjustable dispensing system for different containers
Bottles and diluent storage
- 2-litre GL45 glass bottle (autoclavable)
- 5-litre GL45 glass bottle (autoclavable)
- Jumbo Kit (20 litres) – for large volumes of diluent
Bags and support systems
- BagOpen® stand for broth and dilution bags
- Freestanding support for broth bags
- Integrated instrument stand
- BagOpen® 80/100 mL – for low-volume samples
- BagOpen® 400 – stainless steel version for large bags
Weighing, support and stability
- Weighing platform for supporting larger samples
- Clamping platform for securing tubes and containers
- Certified reference weight (500 g) – for calibration
- GeckoGrip fasteners – for stable positioning of BagOpen bags
