Harvard Apparatus Syringe Infusion Pump 11
The Harvard Apparatus 55-1199 is a classic, high-precision single-syringe infusion pump from the legendary Pump 11 series. Known for its "legendary reliability," this microprocessor-controlled unit is designed for applications requiring consistent, low-to-moderate back pressure and smooth fluid delivery, such as mass spec calibration, microfluidics, and drug studies.
Core Functionality & Performance
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Infusion-Only Operation: The 55-1199 model is an "Infusion Only" pump, meaning it moves in one direction to dispense fluid.
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Smooth Flow: It utilizes a micro-stepping drive to eliminate the "pulsing" common in lesser pumps, ensuring a near-continuous flow even at microliter rates.
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Calibration: Features automatic calibration. You simply enter the syringe's inside diameter (ID), and the microprocessor calculates the correct motor speed to achieve your target flow rate.
- Non-Volatile Memory: The pump "remembers" your last settings (syringe size and flow rate) even after being powered off, which is essential for repetitive lab protocols.
| Feature | Details |
| Syringe Compatibility | 1 syringe: 10 µL to 60 mL |
| Flow Rate Range | 0.0014 µl/hr (with 0.5 µl syringe) to 26.55 ml/min (with 60 ml syringe) |
| Accuracy / Reproducibility | ±0.5% / ±0.1% |
| Linear Force | Average of 17 lbs (8 kg) |
| Display | 2-line, 16-character vacuum fluorescent display |
| Dimensions | 9″ W x 4.5″ D x 4.5″ H (22.9 x 11.4 x 11.4 cm) |
Used, tested to be in great working condition.
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