BI-870 Dielectric Constant Meter for use with Zeta Potential Measurements

Measure the Dielectric Constant Used in Zeta Potential Measurement with the BI-870.

Zeta potential accuracy of suspended colloidal particles depend on knowing the accuracy of the dielectric constant of the liquid. Depending on the particle of interest, a number of different liquids may be used, including mixtures of various proportions of low and high dielectric solvents. As a mixture, the dielectric constant is not typically known.

The BI-870 allows for the dielectric constant determination of the mixture. The BI-870 Dielectric Constant Meter from Brookhaven Instruments allows users to easily measure dielectric constants.

Users simply insert the probe in the liquid to be measured, adjust the two controls on the front panel, and then read the dielectric constant from the display.

Key Features & Specifications

•Full Scale Sensitivity Dielectric constants of 1–20 and 1–200
•Maximum Conductivity of Sample Range 1–20: 1 μS/cm
•Range 1–200: 10 μS/cm (<0.05 mM 1:1 electrolyte)
•Accuracy 2% Absolute: Repeatability and Linearity 0.2%
•Probe Materials Stainless Steel and Teflon
•Minimum Liquid Required ~25 mL standard probe
•Power Requirements 100/115 and 200/240 VAC; 50/60 Hz; 10 Watts
•Dimensions (H x W x D) 190 x 240 x 70 mm
•Operating Temperature 22° C to 58° C
•Measurement Signal Low-distortion 10 kHz sine wave
•Display Backlit LCD
•Output Analog Recorder, Full Scale Reading 1.999 V
•Calibration Back Panel Adjustment with Reference Liquid

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