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Myron L 6P and 4P User Manual

Page 5

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I.

INTRODUCTION

Thank you for selecting the feature-packed Ultrameter II™, one of the

Myron L Company’s latest in an increasing line of instruments utilizing

advanced microprocessor-based circuitry and SMT manufacturing

processes. This circuitry makes the instrument extremely accurate,

reliable and very easy to use.

The Ultrameter II incorporates several new features including a clock

with time and date, an increased memory of up to 100 locations with

time and date stamp, the ability of the user to adjust the timeout “Auto

OFF”, and enhanced performance. See Features and Specifications on

pages 2 & 3.

The most exciting new feature is data logging with the ability to download

the memory or stored test data with its corresponding time and date.

This feature allows the user to create spreadsheets and graphs with

ease, and quickly and accurately manipulate data more effectively. The

optional uDock™ and software is compatible with most computers using

either Microsoft Windows XP or 2000™, or Macintosh OS9.2 or OSX™.

The data may be imported into a variety of spreadsheet formats like

Microsoft Excel CSV™.

Please Note: Although the Myron L Company has performed extensive

testing, we cannot guarantee compatibility of all applications and formats.

We suggest testing your application and format for compatibility before

relying on it.

For your convenience, on the bottom side of your Ultrameter II is a

brief set of instructions. A waterproof pocket sized card with abbreviated

instructions is also included with the instrument.

Special note ...... Conductivity, resistivity, and TDS require mathematical

correction to 25°C values (ref. Temperature Compensation, pg. 37). On

the left of the Ultrameter II’s liquid crystal display is shown an indicator of

the salt solution characteristic used to model temperature compensation

of conductivity and its TDS conversion. The indicator may be KCl,

NaCl, 442™ or USER. Selection affects the temperature correction of

conductivity, and the calculation of TDS from compensated conductivity

(ref. Conductivity Conversion to Total Dissolved Solids (TDS), pg. 40).

The selection can affect the reported conductivity of hot or cold solutions,

and will change the reported TDS of a solution. Generally, using KCl for

conductivity, NaCl for resistivity, and 442 (Natural Water characteristic)

for TDS will reflect present industry practice for standardization. This is

how your instrument, as shipped from the factory, is set to operate. For

use in sea water desalination for example, both the conductivity and

TDS may easily be changed to NaCl.