Hamilton 55019-30 , Single Channel, Aqua, Mechanical SoftGrip Pipette, Adjustable Volume 0.2-2 µL
|Volume Range||0.2 to 2 µL|
|Accuracy at 10 °C||8.00 ±%|
|Precision at 100%||0.60 ±%|
|Precision at 10%||4.00 ±%|
|Accuracy at 100%||1.20 ±%|
SoftGrip Adjustable Volume Pipettes
|Part Number||Volume||At 10% of Pipette Volume||At 100% of Pipette Volume|
|Accuracy (± %)||Precision (%)||Accuracy (± %)||Precision (%)|
|55019-40||100 µL–1 mL||1.60||0.50||0.30||0.12|
We've learned that our best ideas come from listening to people in the lab who use our products. Responding to user demand, we have developed our pipettes putting a priority on addressing the issues of hand strain, fatigue and other injuries caused by pipettes. The result is designs that set new standards for quality, comfort and precision. You'll feel the difference the first time that you pick one up. Hamilton’s line of SoftGrip Manual Pipettes, SofTouch Electronic Pipettes, SoftAide Pipette Controllers and SofTop Quik Dispensers are easy to use, reliable and maximize the efficiency of your lab. Each product features a user-centric design that maximizes quality, comfort and precision.
SoftGrip adjustable volume pipettes are available in 0.2 µL - 1 mL. The isolated volume adjustment makes it so there's no need for a locking mechanism to prevent accidental volume adjustment. Our new generation of pipettes has a dual indicator that improves the volume adjustment accuracy by removing the parallax errors. The slim ejection sleeve is made from a high strength, chemically resistant polymer. The slim design allows the pipette to reach to the bottom of narrow tubes without the need for extended length tips. SoftGrip pipettes have a universal calibration key that reduces the need for costly calibration services. Calibration requires only minutes to perform and eliminates the downtime and cost of alternative calibration methods. The SoftGrip tip nozzle ensures a proper fit with universal pipette tips. Unique color coding and labeling clearly indicates the working ranges of the adjustable volume pipettes.
Are the Hamilton SoftGrip pipettes autoclavable?
Yes, the Hamilton adjustable volume, fixed volume and multi-channel pipettes are autoclavable at 121°C without the need of disassembly or recalibration.
Why are the Hamilton pipettes autoclavable?
All materials used in the SoftGrip pipette, including those in the upper body, are autoclavable. Many competitor models contain materials in the upper body that cannot withstand autoclaving, causing melting or warping that leaves the pipette unusable.
When I want to autoclave the Hamilton SoftGrip pipette, do I need to do anything special to the pipette prior?
It is suggested to loosen the lower body of the Hamilton pipette and placing it inside an autoclave bag before autoclaving. Doing so may extend the life of the pipette.
Adjustable Or FixedAdjustable
Number of Channels1
Pipette TypeAir Displacement
Mechnical Or ElectronicMechanical
Hamilton Pipette Calibration
Calibration of SoftGrip™ pipettes is a simple procedure that requires only a single calibration key. For your convenience, a calibration key is available that fits any SoftGrip Pipette volume range or model.
A convenient feature of your Hamilton pipette is its ability to be calibrated gravimetrically in the lab. To perform calibrations gravimetrically, you will need a good analytical balance. We suggest a six place balance with an accuracy of ± 1.0 µg to calibrate pipettes of total volumes of 25 µL or less. For pipettes of 50 µL or greater, a five place balance with accuracy of ± .01 mg will be adequate. All items used to perform the calibration must be allowed to equilibrate to room temperature.
- After affixing a pipette tip to your pipette, pre-wet the tip prior to taking any measurements by pipetting and dispensing distilled water at least three times.
- Make ten measurements of distilled water per tip, recording the weights. Adjust the data for environmental factors.
- Determine the mean and standard deviation.
- Adjust the volume if necessary; (see Figure 1.)
- Remove the calibration label and locate the calibration reference mark.
- Remove the plunger cap and insert the calibration key.
- Turn the calibration key clockwise to increase volume; counter-clockwise to decrease volume. Each vertical line on the calibration key is approximately 0.2% of the pipette.
- Remove the calibration key and replace the plunger cap. Repeat the gravimetric procedure until results are satisfactory.
- Initial and date a new calibration label, and place it on the pipette hilt.
Figure 1: Pipette calibrations
When setting the volume on adjustable volume pipettes, start your settings from the top digit and work down. The full units are expressed in black digits. Red digits are to the right of the decimal point. The vernier scale at the bottom provides you with the least significant digit. For the 2, 10, 25 and 50 µL pipettes, and the 1 mL pipette, the red digits on the scale reading are to the right of the decimal point. For the 100, 150 and 300 µL pipettes, only the last digit, obtained from the vernier scale, is to the right of the decimal point. See Figure 2.
Figure 2: Adjustable volume pipette settings
|Pipette Volume||2 µL||10 µL||25 µL||50 µL||100 µL||150 µL||300 µL||1 mL|
|Color||Aqua||Purple||Forest Green||Sandstone||Violet||Ochre||Brick Red||Sky Blue|
|Recommended Volume Range||0.2-2 µL||1-10 µL||2.5-25 µL||5-50 µL||10-100 µL||15-150 µL||30-300 µL||0.100-1 mL|
|100% Volume Setting||2.000 µL||10.00 µL||25.00 µL||50.00 µL||100.0 µL||150.0 µL||300.0 µL||1 mL|
|10% Volume Setting||0.200 µL||1.00 µL||2.50 µL||5.00 µL||10.0 µL||15.0 µL||30.0 µL||0.100 mL|
|Smallest Increment of Vernier Scale*||0.002 µL||0.02 µL||0.02 µL||0.02 µL||0.2 µL||0.2 µL||0.2 µL||0.002 mL|
*Although these settings are attainable, for best results we suggest you use your pipette only within the recommended volume range.