Longer GF200-1B GF400 1B GF650-1B General Flow Rate Pump

The Longer GF Series Peristaltic Pumps (GF200-1B, GF400-1B and GF650-1B) have been developed for applications where maintaining a precise, stable flow rate is essential.

Combining intelligent closed-loop flow control with intuitive operation and a versatile range of compatible pump heads, the GF Series provides highly accurate fluid transfer for laboratory, pilot plant and industrial processes.

Constant Flow Control

The defining feature of the GF Series is its ability to deliver stable, repeatable flow rates rather than simply controlling pump speed. Its integrated closed-loop control algorithm continuously regulates pump performance to maintain the required flow, helping to improve process consistency and reduce operator intervention.

Three Working Modes

Available operating modes include:

• Continuous flow operation
• Timed dispensing
• Single volume dispensing

These operating modes allow the pump to be used for continuous process transfer, repeatable batch dispensing or precise volumetric delivery depending on the application.

Intuitive Controls and Display

A bright 3.5-inch colour display provides clear visibility of operating parameters including flow rate, speed, dispensing volume, operating time and pump status. The touchscreen interface is complemented by physical buttons, providing fast, reliable operation even when wearing laboratory gloves.

Designed for Automation

The GF Series has been designed to integrate easily into automated systems and OEM equipment.

Multiple control methods are supported, including:

• Touchscreen and keypad operation
• Foot switch and handheld dispenser control
• External analogue and digital signals
• RS485 communication using Modbus RTU or Longer communication protocol