Owner's manual

Global Water

800-876-1172 • globalw.com

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Congratulations on your purchase of a Global Water WQ-FDO Dissolved

Oxygen Sensor and GL500 Data Logger. These instruments have been

quality tested and approved for providing accurate and reliable

measurements. We are confident that you will find the logger to be a

valuable asset to your applications. Should you require assistance, our

technical staff will be happy to help.

Table of Contents

I. Overview ▫ ▫ ▫ ▫ ▫ 3

II. System Requirements ▫ ▫ ▫ 3

III. Software and Driver Installation ▫ ▫ 4

IV. Direct Connection ▫ ▫ ▫ ▫ 7

V. Modem Connection ▫ ▫ ▫ ▫ 9

VI. Main Screen ▫ ▫ ▫ ▫ ▫ 11

VII. On-Line Help Files ▫ ▫ ▫ ▫ 15

VIII. Get History ▫ ▫ ▫ ▫ ▫ 16

IX. Setup Menus ▫ ▫ ▫ ▫ ▫ 17

X. General Setup ▫ ▫ ▫ ▫ ▫ 18

XI. Analog Setup ▫ ▫ ▫ ▫ ▫ 21

XII. Digital Setup ▫ ▫ ▫ ▫ ▫ 24

XIII. DO Setup ▫ ▫ ▫ ▫ ▫ 26

XIV. Programming ▫ ▫ ▫ ▫ ▫ 29

XV. Connections ▫ ▫ ▫ ▫ ▫ 30

XVI. Modem Cable Diagrams ▫ ▫ ▫ 31

XVII. Maintenance ▫ ▫ ▫ ▫ ▫ 32

XVIII. Troubleshooting ▫ ▫ ▫ ▫ 32

XIX. Customer Support ▫ ▫ ▫ ▫ 34