The STRATEC Air Displacement Pipettor is a fully automatic pipetting module for OEM liquid handling applications that require highest pipetting performance, precision, and reliable process control. Fluid aspiration and dispensing are performed via air pressure instead of liquid displacement. Disposable tips ensure reliable and contamination-free pipetting. Minimized internal air volumes and dead volumes, together with the integrated syringe and syringe drive, support rapid movement and stable, accurate aspirate and dispense steps.
The open-system design allows the use of tips from many manufacturers, while flexible application options such as multi-aspirate and multi-dispense operations make the module suitable for a wide range of liquid handling workflows. The STRATEC Air Displacement Pipettor integrates multiple sensors and control functions to monitor the pipetting performance throughout each cycle. Sensors for tip presence, liquid level detection, clot detection, and aspirate and dispense verification support advanced process control. Ceramic components contribute to enhanced lifetime and a maintenance-free syringe concept, making the STRATEC Air Displacement Pipettor a compact and reliable solution for high-precision OEM pipetting applications.
Specifications
Drive | Brushless DC motor with rotary encoder and home sensor |
Nominal volume | 1000 µl |
Pipetting range | 1 - 1000 µl |
Volume resolution | 0.33 µl |
Max. pump drive speed | 1000 µl/s |
Pipetting performance | Tip size: 300 µl | 300 µl | 300 µl | 1100 µl Targer volume: 5 µl | 10 µl | 100 µl | 1000 µl Accuracy*: ≤ 20.0 % | ≤ 10.0 % | ≤ 2.0 % | ≤ 0.8 % Precision CV*: ≤ 2.0 % | ≤ 1.0 % | ≤ 0.3 % | ≤ 0.3 % |
Sensors | Position encoder for syringe drive, probe capacity sensor, pressure sensor, supply voltage monitoring |
Expected lifetime | Several million dispenses/fluid transfers |
Disposable tip compatibility | Adapters for tips between 50 µl and 1100 µl from several manufacturers available |
Power requirements | 24 Vᴅᴄ ± 1.5 Vᴅᴄ, 400 mA |
Communication | RS232, TCP/IP |
*Pipetting performance is specified based on EN ISO 8655-5 standards under optimized conditions with suitable tip
Frequently Asked Questions
- What are the main advantages of the STRATEC Air Displacement Pipettor?
The STRATEC Air Displacement Pipettor features a ceramic syringe and syringe drive fully integrated into the pipettor housing, supporting a compact and maintenance-free design without additional tubing. Sensor-based process control and flexible flow profile parametrization ensure precise aspirate and dispensing performance, while disposable tips make carryover virtually impossible.
- How does the Pipettor support process control?
A tip presence sensor checks whether a tip is correctly mounted, while pressure monitoring supports barometric liquid level detection, and clot detection. Capacitive sensing adds further liquid level detection and clot detection capabilities. The encoder on the pump drive supports dynamic motion control and contributes to highest pipetting performance.
- How does the Air Displacement Pipettor support flexible liquid handling?
It supports multi-aspirate and multi-dispense operation and allows the pipetting process to be adapted to different application requirements. Flow profile parametrization, together with the possibility to use tips from many manufacturers, makes the module well suited for OEM instruments that require adaptable liquid handling.
- What are the key performance specifications?
The pipette has a nominal volume of 1000 µl and a supported pipetting range of 1 to 1000 µl. Volume resolution is 0.33 µl, and maximum pump drive speed is 1000 µl/s. Depending on tip size and target volume, accuracy reaches up to ≤ 0.8% and precision CV reaches up to ≤ 0.3%. *
*Pipetting performance is specified for DI water with up to 0.1 % Triton X100 based on EN ISO 8655-5 standards under optimized conditions with suitable tip
- What custom solution does STRATEC offer for complex liquid handling in OEM instruments?
STRATEC offers individually tailored gantry-based pipetting solutions for complex liquid handling workflows. Depending on the partner’s requirements, the system can be equipped with multiple pipettes on a gantry and be configured for single-sided or two-sided operation. This system-level solution makes it straightforward to integrate STRATEC’s proven pipetting modules into OEM analytical instruments.
