NATIONAL Precision Dispenser & Flow Cell Adapter

Product Description

The NATIONAL Precision Dispenser has been designed for use in a broad range of analytical applications requiring a simple low cost means of dispensing fluids with extreme accuracy - better than 1%. The Precision Dispenser can handle volumetric dispensing of aqueous solutions, solvents and acids. The units feature low dead volume valveless piston action and synchronous motor drives.

All PTFE surfaces eliminate the concern of cross contamination. Cleaning is easy using the three position Forward-Off-Reverse switch for control of flow direction; simply back flush the system with solvent in the reverse mode and you are ready for your next sample.

The Precision Dispenser has the capability to function in a single fill or continuous mode, permitting the user to perform static or flow-through analysis. The three speed motor assembly provides a choice of 150, 300 or 600 strokes per minute in the continuous mode by means of a simple belt change. Dispense range is from 0 to 100 microliters. The Precision Dispenser comes complete with a PTFE pump kit.

An optional connector kit with male luer lock adapters is available to connect to standard IR liquid cells and flow through top plates for horizontal ATRs The connections system consisting of luer locks, PTFE tubing, nuts and Tefzel ferrules can be used to 
convert any standard IR liquid cell into a flow cell (to convert a liquid cell to a flow cell order Catalog No. 4327-5139 with the dispenser; if not ordered with a dispenser or for extra flow cells, order 4327-5139 and either 4327-5137 or 4327-5138). The convenient finger tight connections offer assured seals and facilitate quick and easy assembly or disassembly. 

Electrical: 110VAC, 60Hz, 8.5watts, synchronous 150, 300, 600rpm with a 3 prong power cord. RFP for 220VAC. Dimensions: 5 x 5 x 4 wide. Shipping Weight: 6 lbs.

Part No.	Description
4327-5134	Precision Dispenser 0-50 microliters with PTFE tubing adapters and PTFE tubing kit (please specify 1/16" or 1/8" OD tubing)
	220V additional charge
4327-5135	Precision Dispenser 0-100 microliters, with PTFE tubing adapters and PTFE tubing kit (please specify 1/16" or 1/8" OD tubing)
	220V additional charge
4327-5137	1/16" OD x 1/32" ID PTFE tubing kit complete with 10 feet of PTFE tubing, 10 PTFE ferrules and 10 Delrin nuts
4327-5138	1/8" OD x 1/16" ID PTFE tubing kit complete with 10 feet of PTFE tubing, 10 PTFE ferrules and 10 Delrin nuts
4327-5139	Male luer lock adapters for standard sealed liquid cell female luer lock syringe connection. The adapters contain a female thread to be used with Delrin nuts (1 pk/2)
4327-5140	PTFE tubing 1/16" OD x 1/32" ID x 10 feet
4327-5141	Delrin nuts for 1/16" OD tubing (1 pk/10)
4327-5142	Tefzel ferrules for 1/16" OD tubing (1 pk/10)
4327-5143	PTFE tubing 1/8" OD x 1/16" ID x 10 feet
4327-5144	Delrin nuts for 1/8" OD tubing (1 pk/10)
4327-5145	Tefzel ferrules for 1/8" OD tubing (1 pk/10)
4327-5146	PTFE tubing cutter for 1/16" and 1/8" OD PTFE tubing
4327-5147	PTFE tubing cutter replacement blades (1 pk/5)

Engineered for Precision and Flexibility

This dispenser and adapter is tailored for laboratories demanding exact fluid handling. Its variable measurement range supports diverse experimental setups, while the manual operation provides full user control. The systems compatibility with both standard and custom flow cells reinforces its adaptability for research and analytical workflows.


Sterilization Made Simple

Autoclavable construction permits easy cleaning and maintenance in compliance with laboratory sterilization protocols. The ability to withstand repeated autoclave cycles ensures enduring performance and safeguards sample integrity, making it indispensable in life sciences and analytical labs.


Effortless Integration with Lab Setups

Designed to accept standard 1/16 and 1/8 OD tubing, this adapter quickly connects to your existing fluid lines, facilitating seamless integration. Compact dimensions and a durable finish enable effortless use within tight laboratory spaces without sacrificing functionality or precision.