RADWAG AS series Operating Instruction

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7. plunger string
8. plunger hanger
9. upper balance
10. balance string
11. down pan
12. additional loads for levelling initial load.
13.4.1. Testing thickness solids
Thickness of solids can be tested in one of 3 liquids:
• H2O (distilled water),
• C2H5OH (spirit 100% +/- 0.1% in temp. 20
0
C),
• AnotHEr (another liquid with known thickness)
Give temperature of liquid for distilled water and spirit. For liquid with
known thickness value is written on keyboard.
To test thickness weigh sample on upper pan and weigh the same sample
in liquid (on lower pan). Result is represented on display automatically
after replacing sample in liquid.
13.4.2. Testing thickness of liquid
Basic element for measuring thickness of liquid is glass plunger. It has
precise capacity shown on hook.
Before final measurements this value should be introduced to balance
memory. To test thickness of liquid weigh glass plunger on upper pan and
in tested liquid. Result of testing is shown on display automatically after
introducing mass of plunger.
13.5. Pipettes calibration
Process of pipettes calibration is very simple and user friendly. It amounts to
introduction of environmental data, parameters of calibration process and
parameters of tested pipette.
13.5.1. Data introduction
To start function of pipettes calibration and to introduce necessary
calibration parameters, follow the instruction from the drawing:

RADWAG AS series Specifications

General

Display	LCD with backlight
Maximum Capacity	Varies by model
Readability	Varies by model
Pan Size	Varies by model
Calibration	Internal or external, depending on model
Stabilization Time	≤ 3 seconds
Interface	RS232, USB
Repeatability (Standard deviation)	Varies by model
Linearity	Varies by model
Net Weight	Varies by model
Protection Class	IP 43