KD Scientific KDS Legacy Series Syringe Pump
| Brand | KD Scientific |
|---|---|
| Origin | USA |
| Manufacturer Type | Manufacturer |
| Origin Category | Imported |
| Model | KDS Legacy Syringe Pump |
| Pricing | Upon Request |
Overview
The KD Scientific KDS Legacy Series Syringe Pump is a precision-engineered, single-channel peristaltic-free fluid delivery system designed for laboratory and industrial applications requiring high reproducibility, long-term stability, and intuitive operation. Built upon the proven KDS platform architecture, the Legacy series employs stepper motor-driven linear actuation coupled with high-resolution microstepping control to achieve smooth, pulseless flow across a wide dynamic range. Unlike peristaltic or gear-driven alternatives, this syringe-based architecture eliminates tubing fatigue, backflow risk, and pulsation artifacts—making it ideal for sensitive applications such as microfluidic device priming, chromatography mobile phase delivery, electrophysiology perfusion, and controlled reagent dosing in analytical or bioprocessing workflows. The pump operates on a closed-loop positional feedback principle: motor step count directly correlates to plunger displacement, enabling volume- and time-based dispensing with traceable accuracy governed by syringe geometry and calibration integrity.
Key Features
- High-precision linear actuation with sub-microliter volumetric resolution (dependent on syringe inner diameter and step resolution)
- Intuitive front-panel interface with directional LED indicators, tactile keypad, and real-time status display
- Dual-mode operation: continuous flow and discrete volume dispensing with programmable start/stop triggers
- Integrated anti-siphon valve control (available on dual-action injection-withdrawal models)
- Power-loss recovery protocol: automatic self-diagnostic and position re-homing upon AC restoration
- Optional footswitch input for hands-free start/stop/pause control in sterile or ergonomic environments
- Configurable audible and visual alarm outputs for end-of-run, occlusion, or error conditions
- Vibration-dampened mechanical housing to minimize acoustic coupling in noise-sensitive setups (e.g., microscopy rigs or low-noise electronics labs)
Sample Compatibility & Compliance
The KDS Legacy Series accommodates standard Luer-lock and Luer-slip syringes ranging from 0.5 mL to 60 mL capacity, including glass, polypropylene, and stainless-steel variants. Syringe selection is supported via an onboard library of over 120 pre-calibrated profiles; users may also define custom syringe dimensions (barrel ID, plunger travel length) for non-standard or OEM components. All firmware and hardware designs comply with IEC 61000-6-2 (immunity) and IEC 61000-6-4 (emission) electromagnetic compatibility standards. While not certified for use in Class I, Division 1 hazardous locations, the pump meets general-purpose laboratory safety requirements under UL 61010-1 and CSA C22.2 No. 61010-1. For regulated environments, audit-trail-capable software integration supports alignment with GLP and GMP documentation practices when paired with validated PC-based control systems.
Software & Data Management
KDS Legacy pumps support both local keyboard programming and external computer control via RS-232 or USB-to-serial interface. The KDS Serial Command Protocol enables full remote orchestration—including parameter upload, real-time flow monitoring, and asynchronous event triggering—using Python, LabVIEW, MATLAB, or custom ASCII command scripts. Programmable sequences consist of up to eight discrete steps, each configurable with independent direction (infuse/withdraw), ramped or constant flow rate (range: 0.001 µL/hr to 120 mL/min, subject to syringe size and motor torque limits), dwell duration (1 second to 12 hours), pause-on-trigger logic, TTL output signaling, and loop repetition (1–100 cycles). No intermediate ramp time specification is required—the controller automatically computes linear velocity interpolation between initial and final flow rates. Sequence files are stored in non-volatile memory and retain integrity during power interruption.
Applications
- Controlled infusion in rodent pharmacokinetic studies (IV, SC, ICV routes)
- Gradient elution in preparative HPLC and FPLC systems
- Time-resolved sample introduction for ICP-MS and LC-MS/MS analysis
- Reagent metering in automated ELISA and PCR setup stations
- Cell culture media exchange and perfusion in bioreactor auxiliary loops
- Calibration standard delivery for flow cytometry and particle counting instruments
- Low-flow solvent delivery in electrochemical cell testing rigs
FAQ
What syringe sizes are supported?
Standard compatibility spans 0.5 mL to 60 mL Luer-lock syringes; custom profiles allow extension to specialized or OEM syringes with known internal diameter and stroke length.
Can multiple Legacy pumps be synchronized?
Yes—KDS 200/400-series models support daisy-chained RS-232 communication with individually assignable addresses, enabling coordinated multi-pump protocols under centralized software control.
Is FDA 21 CFR Part 11 compliance supported?
The pump itself does not include electronic signature or audit-trail functionality; however, when integrated with validated third-party control software meeting Part 11 requirements, full regulatory traceability can be achieved.
How is flow accuracy verified?
Accuracy is determined by syringe dimensional tolerance, motor step fidelity, and mechanical play; users are advised to perform gravimetric or volumetric calibration using NIST-traceable standards prior to critical applications.
Does the pump support analog input/output for external process control?
Analog I/O (0–5 V or 4–20 mA) is not natively available on Legacy models but can be added via optional KDS I/O expansion modules compatible with KDS 200/400 platforms.
