Contact Us

Multi Channel Pipettes

Multi Channel Pipettes

Multi-Channel Adjustable Volume

With the multi-channel pipettes you have the option of either a 5 µL – 50 µL or 30 µL – 300 µL in both the 8 and 12-channels. With the unique, long tip ejector lever and movable lower body can be rotated a full 360° relative to the handle to provide maximum comfort for left- or right-handed use. 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. 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.

Technical Details

Part # / Ref Volume Range Channels Increments
55019-50
5 µL to 50 µL
8
0.02 µL
55019-54
5 µL to 50 µL
12
0.02 µL
55019-52
30 µL to 300 µL
8
0.2 µL
55019-56
30 µL to 300 µL
12
0.2 µL

SoftGrip Adjustable Volume Pipettes

Part Number Volume Accuracy (± %)
@ 10%
Pipette Volume		 Precision (%)
@ 10%
Pipette Volume		 Accuracy (± %)
@ 100%
Pipette Volume		 Precision (%)
@ 100%
Pipette Volume
55019-30 0.2–2 µL 8 4 1.2 0.6
55019-32 1–10 µL 2.5 1.2 0.8 0.4
55019-34 2.5–25 µL 4.5 1.5 0.8 0.2
55019-36 10–100 µL 1.8 0.7 0.6 0.15
55019-38 30–300 µL 1.2 0.4 0.4 0.15
55019-40 100 µL–1 mL 1.6 0.5 0.3 0.12

SoftGrip Multi-Channel Pipettes

Part Number Volume Accuracy (± %)
@ 10%
Pipette Volume		 Precision (%)
@ 10%
Pipette Volume		 Accuracy (± %)
@ 100%
Pipette Volume		 Precision (%)
@ 100%
Pipette Volume
55019-50 5–50 µL x 8 2 2 0.8 0.35
55019-52 30–300 µL x 8 1.2 0.7 0.5 0.3
55019-54 5–50 µL x 12 5 2 1.00 0.5
55019-56 30–300 µL x 12 2.4 1.2 1.00 0.5

SoftGrip Fixed Volume Pipettes

Part Number Volume Accuracy (± %)
@ 100%
Pipette Volume		 Precision (%)
@ 100%
Pipette Volume
55019-01 5 µL 0.8 0.75
55019-03 10 µL 0.8 0.4
55019-05 25 µL 0.6 0.3
55019-07 50 µL 0.5 0.3
55019-09 100 µL 0.4 0.2
55019-11 200 µL 0.4 0.18
55019-13 250 µL 0.4 0.18
55019-15 300 µL 0.4 0.18
55019-17 500 µL 0.4 0.18
55019-19 1 mL 0.3 0.12

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.
Pipette Calibration - Step 1
Pipette Calibration - Step 1

Remove the calibration label. Initial and date a new calibration label to place on the pipette.

Pipette Calibration - Step 2
Pipette Calibration - Step 2

Locate the calibration reference mark and remove the plunger cap.

Pipette Calibration - Step 3
Pipette Calibration - Step 3

Insert the calibration key. Each vertical line on the calibration key is approximately 0.2% of the pipette's total volume.

Pipette Calibration - Step 4
Pipette Calibration - Step 4

Turn the calibration key clockwise to increase volume, counter-clockwise to decrease volume.

Volume Settings

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 below.

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
Reading 200 100 250 500 100 150 300 100
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
Reading 020 010 025 050 010 015 030 010
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

Downloads

Hamilton’s knowledge base provides a range of explanatory articles, frequently asked questions, and document downloads.