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Chapter 3
To begin calibration and/or to change time interval settings, click the Setup button. A Global Water
Setup window will display.
Datalogger Name and Sensor Warmup Time
If you want to change the datalogger name, click in the Name field and type in a new name.
In order to supply connected sensors with adequate power for accurate data measurments, set the Sensor
Warmup Time field to the specification indicated in your sensor manual. Note that this field should reflect
the sensor specification with the longest warm-up time. This setting dictates the length of time power is
applied to the attached sensors before the datalogger takes a reading.
For example, you set Global Logger* to a sensor warm-up time of 3 seconds, and to record readings every
20 minutes at fixed intervals. If the process begins at 12:02:00, power will be applied to attached sensors
immediately and readings taken at 12:02:03. At 12:22:00, power will again be applied to the attached sen-
sors, and the datalogger will take readings at 12:22:03. Note that if the recording interval fields are less
than or equal to the Sensor Warmup Time field, any attached sensors are powered continuously.
To change warm-up time, click in the Sensor Warmup Time field and enter the desired time (0 –15 sec-
onds). You may also click the up/down arrows to the right of the text field to increase or decrease the value
by 1.
*Copyright © Global Water Instrumentation, Inc. 2001
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recording interval
fields
Global Water ● (800)876-1172 ● www.globalw.com
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