
Buying a laboratory balance is a long-term investment. Our warehouse balances are 20 years old – many last a generation or more of technician’s abuse. Analytical balances can also be expensive – you can buy a car for less than a top end balance. So where do you start decided what you need?
Here is a checklist we prepared that may or not make things clearer.
Checklist for buying a balance
|
Definition |
Readability |
Grams or mg or ug – how many decimal places |
What repeatability |
Once calibrated how well will it keep giving the true result |
What range |
Do you want to weight 100 gram or 1kg |
Minimum weight |
|
Connectivity |
How do you want to communicate with a PC |
Portability |
|
Pan size |
|
Tare |
What maximum can you tare off and how does it affect the total |
Weighing units |
Grams and ? |
What is the Readability value?
Decimal places or “figure”. Often people say we want a balance with 1 or 2 or even 6 decimal places – or they may say I want a five-figure balance so what do they mean?
Well what they really mean is grams to that number of decimals. So a 5 figure balance is 0.00000 places.
But actually most tech sheets don’t show that at all! What they show is mg. Which is 1/1000 of a gram.
Readability translation
“Figures” or “places” |
Grams |
mg |
ug |
1 |
0.1 |
100 |
|
2 |
0.01 |
10 |
|
3 |
0.001 |
1 |
|
4 |
0.0001 |
0.1 |
|
5 |
0.00001 |
0.01 |
|
6 |
0.000001 |
0.001 |
1 |
So once you have filled in the checklist – the next step is the have a look around the many options we have on our web shop then get hold of us and we can start the quotation process.
We know these things can take a while – so don’t worry if we have to discuss a few different options.
This month we have a few of the lower readability balances (read in grams or 0.1 or 0.01 grams) on offer on the front page.
The offers will only last while our stock lasts. So once we sell out the offer is over! (Prices exclude GST)
Each of them has their own benefits, but I have the below summary table which will hopefully help: