The Masterflex L/S Precision Variable-Speed Console Drive, 3–300 RPM, 115/230 VAC (7527-20) is a high-accuracy peristaltic pump drive built for reliable fluid metering, transfer, and dispensing across laboratory and industrial workflows. With ±0.25% speed control accuracy over a 3 to 300 RPM range and universal 90–260 VAC power compatibility, it delivers the precise, repeatable flow regulation needed for chemical dosing, reagent delivery, and process-critical fluid handling.
Product Features
- Speed range from 3 RPM to 300 RPM with ±0.25% speed control accuracy for precise fluid metering and repeatable flow rates
- Supports up to two Masterflex L/S pump heads on a single drive for dual-channel operation or increased total flow output
- Three-digit LED display shows real-time motor RPM, allowing operators to verify speed settings at a glance
- Reversible motor enables bidirectional pumping, ideal for purging tubing lines before or after each run
- Separate speed and power (on/off) controls maintain your dialled-in speed setting when switching the pump on and off between batches
- Universal voltage input (90–260 VAC, 50/60 Hz) for operation on both 115V and 230V mains power worldwide
- Stackable, splash-resistant ABS plastic housing rated to IP33 saves bench space and withstands typical laboratory spills
- DB9 rear-panel connector for remote control of speed, direction, and start/stop via contact closure, open collector, footswitch, or handheld remote
- Compatible with eight L/S pump head types including Standard, Easy-Load, Easy-Load II, Easy-Load 3, High Performance, Cartridge, Multichannel, and PTFE Tubing
- Built-in current-limiting safety circuit automatically shuts down the motor if incorrect tubing is loaded or the pump head is overloaded
Benefits
- Wide 3–300 RPM speed range covers both low-flow metering and higher-throughput transfer applications from a single drive
- Run two channels simultaneously from one compact unit, reducing equipment costs and bench footprint
- Contamination-free fluid path — peristaltic design ensures liquid only contacts the tubing, eliminating cross-contamination between runs
- Flexible integration into automated workflows through the DB9 remote I/O interface
- Worldwide power compatibility removes the need for external voltage converters across international facilities
- Durable, low-maintenance construction suited to continuous-duty laboratory and process applications
Why Choose the Masterflex L/S Precision Variable-Speed Console Drive (7527-20)?
The Masterflex L/S Precision Console Drive (7527-20) combines tight ±0.25% speed accuracy, a versatile 3–300 RPM range, and remote I/O connectivity in a compact, stackable package. It is the ideal choice for laboratory and process professionals who need dependable, contamination-free fluid handling across a broad speed range — from low-flow metering to medium-throughput transfer — with the flexibility to run dual-channel configurations from one reliable drive unit.
Compare Masterflex L/S Precision Variable-Speed Console Drives
| Specification | 7527-30 | 7527-20 | 7527-10 |
|---|---|---|---|
| Speed Range | 1–100 RPM | 3–300 RPM | 6–600 RPM |
| Max Pump Heads | 4 | 2 | 2 |
| Flow Rate Range | 0.06–3,400 mL/min | 0.06–3,400 mL/min | 0.36–3,400 mL/min |
| Speed Control Accuracy | ±0.25% | ±0.25% | ±0.25% |
| Input Voltage | 90–260 VAC | 90–260 VAC | 90–260 VAC |
| Enclosure Rating | IP33 | IP33 | IP33 |
| Best For | Low-speed metering & multichannel operation | Versatile mid-range metering & transfer | High-throughput transfer & large-volume dispensing |
