HP E5050A Colloid Dielectric Probe

Product Summary

The HP E5050A Colloid Dielectric Probe offers new capabilities for measuring liquids with bulk conductive properties in-situ and without sample preparation. The dielectric profile of a material often yields key parameters about the nature of colloids. Applications include: Uniformity and concentration of dispersed phase; particle size and shape; colloidal structure analysis, emulsification analysis.

Although dielectric spectroscopy is a well established technique, its use has so far been limited to non-conducting systems because of the electrode polarization problem. This limitation has been overcome because the E5050A uses an electrodeless system which provides permittivity and conductivity data from 200 kHz to 20 MHz.

Product Features

• No electrode polarization

  The new sensing technique solves the electrode polarization problem which has limited dielectric spectroscopy to low-conductivity systems.

• Easy probing

  Perform measurements by simply putting the probe into the liquid material. The probe size and shape make it suitable for on-line monitoring and control applications.

• Conductivity measurements Along with the relative permittivity, conductivity data are also provided.

• Visual interface Dielectric dispersion curves are automatically displayed and correlation factors can be entered to display colloidal parameters directly.

• Yeast Monitoring application software. Option 001 Yeast measurement application software for measuring biomass allows the user to conveniently translate dielectric data into cell concentration information.

Product Specifications

Frequency range:
	200 kHz to 20 MHz  specified
	 75 kHz to 30 MHz  operating
Measurement Parameters:
	Relative Permittivity: e', e''
	Conductivity 	     : k', k''
Maximum Temperature 120 deg. C.
Cable length 2 meters
Probe size: Thickness      = 14mm
            Outer Diameter = 40mm
            Inner Diameter = 7.5mm
            Length of Arm  = 160mm

Minimum distance of 20 mm between probe and vessel required.

Product Ordering Information

A complete system consists of:
HP E5050A	Colloid Dielectric Probe
   Opt 001	Yeast Measurement software

HP 82345B PC Automation Kit 
HP 4285A Precision LCR Meter

HP Vectra PC or equivalent- The computer must be configured with a
minimum of an 80486/33MHz or higher processor, 16MB or more of RAM, 20MB
of free space on a hard disk, one 3.5" 1.44 MB floppy disk drive, and a
1024x768 super VGA monitor.

HP E5050A Colloid Dielectric Probe Product Overview

Sample Permittivity Data of Colloidal Liquids using the HP E5050A. Product Note

HP E5050A Inquiry Form

Evaluation of Colloids by Dielectric Spectroscopy AN

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