Gravimat®

Key Features

1. TRACEABILITY
Instant data export to Excel™
Excellent reproducibility and repeatability
Compatible with LIMS, printer and bar-code

2. ACCURATE
Precise weighing system
High precision Watson Marlow pumps
Distribution and weighing functions in 1

3. USER-FRIENDLY
Easy cleaning: all stainless steel + electronic parts protected
Languages: English, French, German, Spanish, Italian, Japanese, Chinese…

4. HIGH-QUALITY
ISO 7218 / ISO 6887-1 / AFNOR V08-010 standards
Made in France: ISO 9001 V2000 standards

5. AVAILABLE IN:
Gravimat^® 1 pump
Gravimat^® 2 pumps

Technical Specifications

Gravimat^®
Gravimetric dilutor
Microbiological analyses
Gravimetric dilution / Liquid dispensing
Precise weighing system
For sample analyses requiring traceability

Dilution time : < 20 secs. for 250 ml
Dilution time with Booster kit: > 10 secs. for 250 ml
Dilution factor : from 1/2 to 1/999

Weighing and dispensing functions in one unit.
Accuracy (for a sample weight > 1g): < 0.05 g for sample weighing
Accuracy (for a sample weight > 1g): > 99 % for liquid mass dispensing
Maximum weight: 2500 g (Platform of 5000 g optional)

Weighing platform: accuracy 0.05 g
Liquid dispensing: accuracy 0.1 g
Multi-lingual screen: French, English, German, Spanish, Italian, Japanese, Chinese
RS 232 output for printer or LIMS Printed data: date, time, user code, pump selection, sample ID, sample weight, dilution factor, dilution accuracy.

All stainless steel: easy to clean
Power: 100/240 V - 50/60 Hz

1 year guarantee (after registration of the guarantee registration)

Gravimat^® single pump
Maximum charge: 2500 g
Power: 100/240 V - 50/60 Hz
Size (l x w x h): 42 x 31 x 32 cm
Weight: 11 kg
Ref. 510 230

Gravimat^® double pump
Maximum charge: 2500 g
Power: 100/240 V - 50/60 Hz
Size (l x w x h): 42 x 31 x 32 cm
Weight: 13 kg
Ref. 512 230

Delivered with 1 or 2 pumps, 2 sets of autoclavable dispensing assemblies per pump, 1 BagOpen^®, 1 round weighing platform, 1 autoclavable 5 liter bottle, Sample packs of BagFilter^® P, BagFilter^® S, BagPage^®, BagLight^®.

Options


Booster kit	Thermal printer RS 232 output	Barcode reader
Reference: 511 000	Reference: 521 000	Reference: 522 000

Stand for broth bags	Dispensing arm
Ref. 513 013	Ref. 513 002


5 L autoclavable bottle	500 g COFRAC weight	Weighing cell of 5000 g
Ref. 513 001	Ref. 513 005	Ref. 600 000

Consumables

Choose sterile filter bags for instant filtration of the sample during its homogenization:
no more risks of cross-contamination!


BagFilter^® 400 ml	BagPage^® 400 ml	BagLight^® 400 ml	RollBag^® 400 ml
Side-filter bag	Full-surface filter bag	Plain bag	Sampling/blender bag
Réf. 111 425	Réf. 122 025	Réf. 132 025	Réf. 145 040

F.A.Q

What is a gravimetric dilution ?
A gravimetric dilution is a dilution calculated with the weight of a sample (for example : a 25 g sample diluted at 1/10 must weight 250 g at the end of the dilution. The dilutor adds 225 g of diluent). This allow for an ultra-precise and rapid dilution because the sample is weighed permanently during the distribution of liquid. This is an important step in the microbiological analysis because it is essential to dilute a sample before blending then analyze it.

What are Gravimat^®’s features ?
Gravimat^® is very useful for microbiological analysis that require traceability. You can perform gravimetric dilution and liquid distribution. Gravimat^® It is also a high precision balance.

What are Gravimat^®’s advantages ?
Gravimat^® gravimetric dilutor is user-friendly, reliable, quick and evolutive. The dilutions are repeatable and reproducible, ensuring your laboratory the greatest accuracy and quality. You can connect on the Gravimat^® any LIMS, the printer and the barcode reader, to ensure sample’s traceability.

What are the application areas of Gravimat^® ?
Gravimat^® is widely used in food microbiology, pharmaceutical, medical and environmental analysis. It ensures traceability of your sample countings and offer a considerable time-saving, making laboratory work more reliable, more enjoyable and more efficient. It is also used in industrial analysis laboratories. It can also be used in chemical dilution and in fragrance industries.

What is Gravimat^®’s accuracy ?
For a sample weight superior to 1 g, it is less than 0,05 g of the sample weighing and more than 99% of the distibuted diluent mass. For liquid distribution, accuracy is 0,1 g.

How long does it take to perform a dilution with Gravimat^® ?
The dilution time of Gravimat^® is very quick: less than 20 seconds for 250 ml. With the "booster kit", optional, it became less than 10 seconds.

Can I connect two diluents simultaneously ?
Yes. thanks to the two pumps, you can connect two diluents simultaneously. With the optionnal stand for broth bags, you can also use broth bags.

Is traceability ensured ?
Yes. Gravimat^® has a RS 232 port to connect a printer (option) and can be connected to a LIMS system. Printed data are : pump selection, accuracy, sample weight, total weight and the dilution or distribution factor.

Is it easy to clean ?
Yes. Gravimat^® is stainless steel to make cleaning easier, and all the electronic parts are protected.

What is delivered with Gravimat^® ?
Gravimat^® comes with one or two pumps, 2 tubings per pump and a BagFilter^® filter-bags sample pack.

Does Gravimat^® require a lot of maintenance ?
No, it’s a device that requires only little maintenance because it is robust and stainless steel.Thanks to its design, the circuit board is protected from liquid projections.