EC500 V2.3 3/08

2

Introduction

Congratulations on your purchase of the ExStik

Solids (TDS) / Salinity meter. With the EC500’s dynamic cell-constant technology it is

possible to measure a wide range of Conductivity, TDS, and Salinity with the same

electrode. Careful use and maintenance will provide years of reliable service.

Powering the ExStik™

The ExStik

weak, the ‘BAT’ indicator appears on the LCD. Press the ON/OFF key to turn the ExStik

®

on or off. The auto power off feature shuts the ExStik

inactivity to preserve battery life.

Getting Started

•

For new meters, remove the battery cap and then remove the battery insulating strip.

•

Remove the cap from the bottom of the ExStik to expose the pH electrode, reference

junction and conductivity electrodes.

•

Before the first use or after storage, soak the electrode in tap water or pH 4 buffer

solution for about 10 minutes.

•

White KCL crystals may be present in the cap or on the electrode. This is to be

expected depending on the length of time in storage. These crystals will dissolve

while soaking the electrode or they can be rinsed away with tap water.

•

For best results calibrate with pH 7 buffer solution first, then calibrate with the buffer

solution closest to the expected pH value of the solution or material to be tested.

•

To preserve the pH electrode life keep the sponge in the protective cap soaked with

tap water or pH 4 buffer solution.

•

For best results, calibrate for conductivity with a standard in the expected range of

the sample. For maximum accuracy calibrate from low conductivity value standards

to high value standards.

Warranty

of defects in parts and workmanship for one year from date of shipment (a six month limited

warranty applies to sensors and cables). If it should become necessary to return the instrument for

service during or beyond the warranty period, contact the Customer Service Department at (781)

890-7440 ext. 210 for authorization or visit our website www.extech.com for contact information. A

Return Authorization (RA) number must be issued before any product is returned to Extech. The

sender is responsible for shipping charges, freight, insurance and proper packaging to prevent

damage in transit. This warranty does not apply to defects resulting from action of the user such as

misuse, improper wiring, operation outside of specification, improper maintenance or repair, or

unauthorized modification. Extech specifically disclaims any implied warranties or merchantability

or fitness for a specific purpose and will not be liable for any direct, indirect, incidental or

consequential damages. Extech's total liability is limited to repair or replacement of the product.

The warranty set forth above is inclusive and no other warranty, whether written or oral, is

expressed or implied.