Delta T Micro-Perfusion Pump (Ultra Low-Flow)

The Micro-Perfusion Pump is a miniature, single or dual, channel, full-featured peristaltic pump designed for specific ranges of flow rates conducive to microscopy. Unlike most peristaltic pumps that are driven by stepper motors, the Micro-Perfusion Pump is driven by a tachometer regulated, multi-stage DC gear motor. This assures a smooth analog rotation of the roller spindle, free of instantaneous steps. The Problem: When imaging cells in any structure such as a chamber having a coverslip as an observation surface, one must appreciate the fact that any rapid changes in flow rate will translate to micro-dynamic changes in pressure within the dish causing the coverslip to react like a diaphragm forcing the specimen to go out of focus with each step. The Solution: To eliminate this problem at the lower flow rates and significantly reduce it at higher flow rates, Bioptechs recommends the model Delta T Micro-Perfusion Pump for use with all its micro-observation systems. This Delta T Micro-Perfusion Pump is a miniature, dual channel, full-featured peristaltic pump designed specifically for low-flow rates. Unlike most peristaltic pumps that are driven by stepper motors, the Delta T Micro-Perfusion Pump is driven by a tachometer regulated, multi-stage DC gear motor. This assures a smooth analog rotation of the roller spindle, free of instantaneous steps. It is regulated by either the internal control circuitry adjustable from 0.8 µL/min to 18 ml/min (dependent on pump model). The pump comes with a 9 volt AC adapter and also contains an internal 9 volt battery which can function as the primary power supply if needed. The most efficient tubing size for Delta T applications is 0.031 ID. The pump tubes are available in silicone rubber and C-Flex. They are terminated with a 1/16" tubing barb. The base of the pump is threaded for easy mounting to a stand or fixture near the microscope. An optional rod mounting clamp is available for mounting to a 1/2" rod.To prevent a culture dish from overflowing, the tubing in the pump head has two different inside diameters. Therefore, you can simply apply media to the dish at a rate slower than it is aspirated away. To control the level in the dish, simply adjust the height of the aspiration tube. Features Compact Usable as either single or dual channel Precise speed setting feature Flow rates of 0.8 µL/min to 18 ml/min (pump dependant) Compatible with 1/16" tubing Universal 9VDC adapter that accepts an input of 100 – 240VAC. Power supply has plugs for US, Europe, UK, and Australia 9V battery backup Can be operated on internal battery if desired Micro-Perfusion Pump Rod Mounting Clamp The Micro-Perfusion Pump Rod Mounting Clamp provides a method of mounting perfusion pumps onto conventional 1/2" support post. Makes positioning perfusion pumps adjacent to the microscope easy and convenient. Order tube sets separately. Tube sets are not included with pump.