Customer Service - Hach Anatel PAT700 User Manual

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1.13 Customer service

Page 12
Resistivity. Resistance, measured in megohmcentimeters (MΩ-cm), to the flow of
electrical current through high-purity water. Resistivity is a means of continuously
measuring the purity of the water and is the reciprocal of conductivity.
Temperature compensation. Conductivity and resistivity measurements normalized to
25 °C (77 °F) for reporting purposes. Normalized conductivity and resistivity
measurements reflect the values that would be reported at a sample temperature of
25 °C (77 °F) using a model based on sodium chloride in water. Conductivity and
resistivity of electric current in water depend on the temperature of the water. The lower
the temperature, the lower the conductivity and the higher the resistivity.
Total organic carbon (TOC). A measurement of the organics present in water based on
its carbon content. In high-purity water, TOC is measured in parts per billion (ppb). Total
organic carbon is used interchangeably with total oxidizable carbon.
VGA. Video Graphics Adapter.
For customer service:
• Voice:
• FAX:
• Support hot line:
• Website:
US: 1.970.663.9760 or 1.800.373.0531
EU: 41.22.594.6400
US: 1.970.663.9761
EU: 41.22.594.6488
US: 1.877.4 ANATEL (1.877.426.2835)
www.hach.com