Can the V3 pen use 1, 2 or 3 mL of liquid?
Yes. Enter the actual final liquid volume. The cartridge holds up to 3 mL, or 300 clicks; 2 mL represents 200 clicks, and one click always represents 0.01 mL.
SUBVERIX™ / LABORATORY TOOL
Laboratory concentration
calculator.
Choose the V3 pen with a 3 mL cartridge — 300 clicks total, or five complete 60-click scales — or one of the ordered syringes: 0.5 mL insulin, 1 mL insulin or 3 mL disposable.
PRECISE CALCULATIONS
Click, unit or millilitre.
One equation shown on the appropriate scale: pen clicks, U100 syringe units or volume in mL and µL. The calculator only performs mathematical conversions from protocol inputs.
SUBVERIX™ / LAB CALCULATORFour tools, one consistent calculation
mg
Total material content
mL
Total liquid volume
Enter the actual total liquid volume. The V3 cartridge holds up to 3 mL, and one click equals 0.01 mL. Selected volume: 3 ml = 300 clicks.
µg
Material in one research aliquot
For a research aliquot of 1 mg, read the device at 7.5 clicks.
Selected device scale7.5 clicks
7.5
01224364860
Concentration = total material ÷ total liquid volume. Aliquot volume = aliquot amount ÷ concentration.
HOW TO READ THE RESULT
From source values to a physical scale mark.
The calculator performs two connected operations. It first derives concentration from total material content and total liquid volume. It then converts the amount specified by a protocol into volume and the reading used by the selected measuring tool.
Calculation sequence
- Select the exact pen or syringe type whose scale will be used.
- Enter the total material content stated on the label or in the batch documentation.
- Enter the actual final liquid volume. For the V3 pen, this may be between 1 and 3 mL; 3 mL is the cartridge maximum.
- Enter the amount for one protocol aliquot and compare the exact result with the nearest full division.
Four different scales
V3 pen: the cartridge holds up to 3 mL, or 300 clicks. With 2 mL, the available volume represents 200 clicks. One dial scale ends at 60 clicks, and one click equals 0.01 mL.
1 mL U100 syringe: 100 units represent 1 mL and one unit represents 0.01 mL.
0.5 mL U100 syringe: it uses the same U100 standard, but its scale ends at 50 units.
3 mL syringe: the result is reported directly in mL and µL; the physical graduation depends on the specific product.
FREQUENT QUESTIONS
Key distinctions and limitations.
Why can the exact result and nearest mark differ?
The exact result is a mathematical value. The nearest mark shows a setting available on the selected tool and the amount of material represented by that setting.
What does the very small reading warning mean?
The warning appears when the result is below two full divisions of the selected tool. Such a small reading may be difficult to reproduce consistently.
Does the calculator include losses and dead volume?
No. It reports a theoretical result and does not include dead volume, transfer losses, scale tolerance or uncertainty in the actual material content.