Mr Muller,

In regards to your post, I can see a couple of variables that might need addressed. You mentioned the variablilty of materials, I was wondering if the material is sampled for changes in density throught out the process .

In our experience, draft weights are normally used as a system check against the belt scale readings. The comparisons of individual weights can be significant.

I would also imagine the bulk density of the material is wide ranging. The conveyor belt scale can wiegh over a wide range, however the belt tension can change considerably depending on the loading. I would also suggest material testing over a number of feed rates.

regards,

Todd Dietrich

Kaskaskia Valley Scale Co.

www.kvsco.com ■

Dear Sir,

If the Belt scale is installed & aligned Properly, and material test carried out, there is no reason why it should not be accurate. The Following could affect the accuracy:

1. The Material is of very light weight in nature.

2. If the Flow of material is not uniform and contineous.

3. If the belt tension is not OK

4. If the Idlers, preceeding & succeeding are not of Good Quality.

we supply 2 / 4 Load cell based belt scales and we have achieved repeatedly 0.2-0.5% accuracy in various mining, fertilizer, cement, power & Sugar Industries.

You may contact us for any of your requirement as far as weighing is concerned.

regards

V Sundar

COO Orange weighing & Slutions Pvt Ltd

Bangalore india

0091 9483527761 ■

Even 0.3% involves many tonnes but this is considerably less than the accepted variations in belt weighers.

I am just interested to find out how the consumables are treated in the berthing draft surveys.

Operating the vessels gearing and providing on-board services need to be taken into account which, as the thread starter intimates, can be frustrating.

I should know whether or not the hatches are sealed on departure, but sadly I don't. Freight container doors are sealed and this saves all the bother...is bulk shipping up to speed hereabouts? ■