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Checklist for buying a balance

Posted on 6/23/2024
Checklist for buying a balance

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
Standard RS232, USB, Optional Ethernet, 2nd RS232

Portability

Pan size

Tare

What maximum can you tare off and how does it affect the total

Weighing units

Grams and ?
Counting option allows you to weigh x and work out how many total

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: