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10. AD-4212B-PT / AD-4212A-PT
The AD-4212B-PT / AD-4212A-PT is designed exclusively as a pipette accuracy tester.
Although the performance as a balance is the same as the AD-4212B / AD-4212A production
weighing unit, some of the specifications are different.
10-1 Factory Settings
When shipped, the factory settings of the AD-4212B-PT / AD-4212A-PT as a pipette accuracy tester
are as follows.
Unit
Weighing unit: mg
Minimum weighing value for the AD-4212B-PT: 0.1 mg
Each time the SAMPLE key is pressed, the minimum weighing value changes as below:
0.1 mg → 0.01 mg → 0.001 mg → 1 mg → 0.1 mg ...
Press the SAMPLE key to switch the minimum weighing value as necessary.
For testing a liquid with a volume of less than 100 μL, the recommended minimum weighing value
is 0.01 mg (0.01 μL). With a volume of less than 10 μL, 0.001 mg (0.001 μL).
Function table
Functions related to pipette accuracy testing are as follows.
Class
Item and Parameter
Cond
Condition
trc
ba5fnc
Zero tracking
Environment
Display
5pd
Display refresh rate
ploc
Display lock function
Cp fnc
Cp
Comparator
Comparator mode
0
Fast weighing speed, sensitive value
1
2
Slow weighing speed, stable value
0
OFF
1
Normal
2
Strong
3
Very strong
0
5 times/second
1
10 times/second
0
OFF
1
ON
0
No comparison
1
Comparison, excluding "near zero" when stable or overloaded
2
Comparison, including "near zero" when stable or overloaded
3
Continuous comparison, excluding "near zero"
4
Continuous comparison, including "near zero"
Factory setting
23
Description
FAST
MID.
SLOW
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