L100-1S-1 and L100-1S-2 Precision Flow-Rate Peristaltic Pumps

DESCRIPTION

The L100-1S-1 and L100-1S-2 are laboratory peristaltic pumps designed for fine speed adjustment and flow-rate-oriented operation. Both provide a 0.01–100 rpm drive range, an LCD interface and flow-rate calibration. A manufacturer-stated maximum single-channel reference flow of 500 mL/min can be achieved with an appropriate head and tubing configuration. The key choice is the control interface: L100-1S-1 is locally operated, while L100-1S-2 adds external-control and RS485 options for research-system integration.

Product Overview

These pumps suit applications where small adjustments in motor speed matter and a calibrated flow setting is more useful than a basic rpm-only interface. They can be used for compatible reagent delivery, analytical liquid transfer and experimental circulation within a laboratory flow system. Unlike a high-flow transfer pump, their practical value is the fine adjustment at low speed, subject to the selected tube/head geometry and the required fluid conditions.

The two variants should not be merged into a single specification for external control. L100-1S-1 is intended for direct operator use through its keypad; L100-1S-2 additionally supports a footswitch, external signals and RS485. Customers planning automation should select the -2 variant after confirming the communication and electrical interfaces.

How It Works

A peristaltic head displaces liquid by sequentially squeezing flexible tubing. Motor rpm and tube dimensions influence the volume moved over time. The pump's flow-calibration process adjusts the relationship between displayed delivery settings and measured output for a specified setup. Recalibration can be necessary if tubing changes, a different fluid is introduced or operating conditions affect flow.

Package / Configuration

Order the required drive variant with a compatible pump head and tubing arrangement. The manufacturer lists YZ, FG, BZ, DMD and selected DG pump-head families, including several multi-channel options. The head, tubing, connections and any remote-control hardware are configuration items; verify what is included rather than assuming all accessories accompany the drive.

Key Features

• Fine control down to 0.01 rpm at the lower end of the speed range.
• Directly adjustable and reversible pumping direction.
• LCD presentation of pump settings and flow-related operating information.
• Flow-rate calibration for the selected fluid-path configuration.
• Continuous and time-based operating modes.
• Multiple compatible pump-head formats and tubing sizes.
• External signal, footswitch and RS485 operation on L100-1S-2.
• Local keypad-only operating architecture on L100-1S-1.

Technical Specifications

Parameter	L100-1S-1	L100-1S-2
Motor speed	0.01–100 rpm, reversible	0.01–100 rpm, reversible
Speed resolution below 10 rpm	0.01 rpm	0.01 rpm
Speed resolution above 10 rpm	0.1 rpm	0.1 rpm
Maximum reference single-channel flow	500 mL/min	500 mL/min
Display	LCD	LCD
Work modes	Continuous and timed	Continuous and timed
Flow calibration	Yes	Yes
Local control	Keypad	Keypad
Footswitch/external interface	Not listed	Listed
RS485 communication	No	Yes
Dimensions, drive	232 × 142 × 149 mm	232 × 142 × 149 mm
Power	AC 100–240 V, 50/60 Hz, 25 W	Same
Enclosure rating	IP31	IP31
Weight	Approximately 2.38 kg	Approximately 2.38 kg

Applications

The L100-1S family is suited to compatible small-volume analytical circulation, chemical-reagent metering and laboratory test platforms. In electrochemical work, the fine speed setting may be useful when screening flow conditions around a membrane-electrode-assembly cell or a flow electrode. The drive cannot be assumed to remove pulsation; check the actual delivery behaviour and pressure requirement of the connected device.

Compatibility and Selection Guidance

Choose L100-1S-1 for a stand-alone laboratory procedure that needs calibrated settings but does not require instrument-to-pump communication. Choose L100-1S-2 when a computer, programmable controller or another instrument must command the pump. Then specify the required flow range, tubing material and diameter, head type and number of channels. The manufacturer's very low reference flow rates reflect particular pump-head/tubing combinations and should not be treated as universal performance for every head.

Why Source Through ScienceGears

ScienceGears can help Australian and New Zealand researchers compare the two control variants, identify an appropriate pump-head arrangement and coordinate a quotation for experimental flow systems or analytical instruments.

Frequently Asked Questions

What is the main difference between -1 and -2?

The -2 supports external and RS485 control. The -1 is designed for keypad operation without those listed interfaces.

Is the flow rate measured in real time?

Flow settings rely on calibration and pump operating parameters; independent real-time flow measurement should not be assumed.

Is 500 mL/min available with every head?

No. The maximum reference value requires a compatible head and tube combination; different heads cover different ranges.

Can I use these pumps for very low flow?

The low-speed resolution may help, but usable volumetric flow depends on tube dimensions, roller geometry and fluid conditions. Verify the required rate experimentally.

Can a single drive control independent channels?

A multichannel head generally shares the drive speed. If streams must be independently adjusted, choose separate controllable drives or a verified independent-channel architecture.

When should I recalibrate?

Check delivery after changing tubing, head, liquid or important operating conditions, and during extended use as tubing properties change.

Contact ScienceGears

Provide ScienceGears with the flow range, liquid chemistry, intended experiment and local or remote-control preference to discuss a suitable L100-1S-1 or L100-1S-2 configuration.