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Global Water
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(800)876-1172
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www.globalw.com
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Introduction
The GL400 Datalogger
Congratulations on your purchase of the Global Water GL400 Datalogger. This instrument has been quality
tested and approved to provide accurate and reliable measurements for a variety of sensors. We are confi-
dent you will find the GL400 to be a valuable asset for your applications. Should you require assistance,
our technical staff will be happy to help.
The GL400 is the latest addition to our line of rugged remote monitoring instrumentation and comes in two
varieties: the 8-channel (GL400-7-1) and 2-channel (GL400-1-1) loggers. The 8-channel logger features 7-
analog and 1-pulse channels for data recording, while the 2-channel features 1-analog and 1-pulse. The
Global Logger* software package operates on the user-friendly operating systems Microsoft Windows® 95,
98, ME, NT, 2000 and XP**.
Remote monitoring sensors are connected to the GL400's internal terminal junctions. Types of sensors that
are typically used include Dissolved Oxygen, pH, Conductivity, Turbidity, Temperature, ORP, Water
Level, Wind Speed, Wind Direction, Humidity, Barometric Pressure, Solar Radiation and Rain Gauges.
Contact us for unique, special and custom modifications to meet the requirements of your application.
The GL400 Datalogger is designed to accept any 4-20 mA sensors. Twisted pair 2-wire and 3-wire sensors
can be quickly connected to the logger's terminal strip providing them with switched power and connecting
them to the GL400’s data processes.
The GL400's rugged, lockable and weather-resistant enclosure can easily be hidden, bolted to a post or se-
cured inside an additional container for added protection from the elements, animals, or vandals.
Introduction
* Copyright © Global Water Instrumentation, Inc. 2001
**Windows® 95, 98, ME, NT, 2000 & XP are trademarks of the Microsoft Corporation
Features
GL400-7-1
GL400-1-1
Data
•
Windows based Global Logger* software
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Tabular display/printout
•
Data in standard spreadsheet format
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Communication cable included (RS232C)
Logger
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7-analog 1-pulse channels
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Low power internal battery with charger
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8,000 data logs per channel
•
12-bit or 1/4,000 resolution
•
UV protected PVC weather-resistant enclosure
Data
•
Windows based Global Logger* software
•
Tabular display/printout
•
Data in standard spreadsheet format
•
Communication cable included (RS232C)
Logger
•
1-analog 1-pulse channels
•
Low power internal battery with charger
•
19,500 data logs per channel
•
12-bit or 1/4,000 resolution
•
UV protected PVC weather-resistant enclosure
