The water content decides whether a batch of nuts survives storage and transport without mould, and at settlement it decides what is being paid for. The oven method answers that after hours. The humimeter FSG answers in seconds, from a two litre sample, without shelling and without destroying the goods.
The instrument measures nuts in the shell and shelled, as well as roasted and ground. It carries 19 factory curves and four free slots for curves prepared for a particular product.
Your benefits
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The FSG is not a meter you pour a random handful into. Every curve has a portion weight assigned to it - it is part of the curve name - and the repeatability of the result depends on keeping to that weight. The digital scale and the measuring container are part of the delivery.
With walnuts in the shell the chamber is filled exactly to the upper edge: too much material is as unacceptable as too little.
A fast electrical measurement depends on several factors at once, so the manufacturer recommends comparing the readings periodically with the oven method, the reference method. For supervision of measuring equipment there is the check set art. no. 14813 - reference material and a weight made specifically for the FSG. A small deviation from the laboratory result can be taken out with the offset function, which corrects the curve on the device.
Where a product has no curve at all, there are three routes: a laboratory analysis and a new curve from samples you send in (art. no. 11217), loading a curve that already exists in the catalogue (art. no. 12297), or adjusting a factory curve to measurements taken at your site (art. no. 14823).
The FSG reports water content, that is how much the water in a batch weighs relative to the batch itself - the figure used for settlement and for storage. Whether mould will develop in the product is decided by water activity, the water available to micro-organisms. The two do not replace one another. Water activity is measured with the humimeter RH2 and its water activity chamber.
| Parameter | Value |
|---|---|
| Article number | 13200 |
| Measuring range | 0 to 50 % water content, depending on the calibration curve |
| Resolution | 0.1 % water content; 0.5 °C/°F temperature |
| Calibration accuracy against the reference material | ±0.5 % |
| Sample size | 2.0 litre chamber; portion weight depends on the curve |
| Compensation | sample temperature measurement; bulk density compensated by weighing the portion |
| Temperature range when determining water content | 0 to +50 °C |
| Temperature compensation | automatic |
| Storage temperature | -20 to +60 °C |
| Protection rating | IP 40 |
| Display | backlit matrix display 128 × 64 |
| Current consumption | 60 mA with the backlight on |
| Memory | hold function, manual logger for 10 000 readings with measuring point reports |
| Offset function | correction of the calibration curve |
| Dimensions | 226 × 165 × 240 mm |
| Weight | 3 kg with batteries |
| Power supply | 4 alkaline AA batteries, 1.5 V |
| Menu languages | English, German, Italian, French, Spanish, Portuguese, Czech, Russian, Polish, international |
The name of every curve begins with the portion weight that has to be weighed out. The list below follows operating manual v2.7.
| # | Product / calibration curve | Sample weight | Measuring range (water content) |
|---|---|---|---|
| 1 | Peanuts unshelled | 400 g | 2 % - 11 % |
| 2 | Peanuts shelled | 1 000 g | 2 % - 10 % |
| 3 | Peanuts roasted | 1 000 g | 2 % - 10 % |
| 4 | Walnuts large unshelled *1) | 350 g | 2 % - 50 % |
| 5 | Walnuts unshelled *2) | 550 g | 2 % - 50 % |
| 6 | Walnuts shelled | 650 g | 1 % - 8 % |
| 7 | Walnuts ground | 560 g | 1 % - 8 % |
| 8 | Macadamia unshelled | 1 000 g | 2 % - 10 % |
| 9 | Macadamia shelled | 1 000 g | 1 % - 8 % |
| 10 | Almonds shelled | 1 000 g | 1 % - 12 % |
| 11 | Hazelnuts unshelled | 600 g | 3 % - 30 % |
| 12 | Hazelnuts shelled | 900 g | 1 % - 9 % |
| 13 | Brazil nuts shelled | 950 g | 1 % - 6 % |
| 14 | Cashew nuts unshelled | 700 g | 8 % - 28 % |
| 15 | Cashew nuts shelled | 900 g | 2 % - 20 % |
| 16 | Spiral noodles | 450 g | 5 % - 15 % |
| 17 | Pekan nuts unshelled | 850 g | 1.5 % - 14 % |
| 18 | Normal chestnuts | 700 g | 10 % - 60 % |
| 19 | Large chestnuts | 700 g | 15 % - 50 % |
*1) Always choose the curve „550 g Walnuts unshelled” unless 550 g does not fit into the measuring chamber (the chamber is filled exactly to the upper edge - neither excess material nor less than 550 g is allowed).
*2) If 550 g does not fit completely into the measuring chamber, choose the curve „350 g walnuts large unshelled”.
Scope of delivery
The scale and the container are not extras: without them the portion required by the curve cannot be weighed out. The USB module with the software is included as well, so nothing has to be bought to move readings to a PC. |
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Polski