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Instructions

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1620A “DewK” Thermo-Hygrometer
Getting Started Guide
18
Replace the battery cover.
Replace the DC power cord and switch the power on.
Used batteries must be disposed of properly. See the WARNINGS section at the beginning of
this guide.
Sensor Configuration
The thermo-hygrometer can be used with one or two sensors of either type attached at either of
the two ports. Extension cables can be used with the sensors to allow the sensors to be placed
at remote locations. The extension cables can be up to 30m (100 ft.) in length. When a sensor is
attached, the thermo-hygrometer detects the sensor automatically, reads its calibration param-
eters, and begins to measure if the channel is enabled.
Power Switch
To operate the thermo-hygrometer, slide the rear power switch to the ON ( ) position. When the
thermo-hygrometer is not being used, slide the power switch to the OFF (
) position before
disconnecting the power source to preserve the battery.
Power On Self-Test
When power is turned on, the thermo-hygrometer performs a self-test, checking the system,
sensors, sensor calibration parameters, memory, and buttons. If an error occurs, an error mes-
sage is displayed. See the Troubleshooting section of the User’s Guide for additional informa-
tion on error messages.
Display Contrast
If the display appears too dark or too light, you can use the u and d buttons at the main
screen to adjust the contrast. The contrast can also be adjusted from the DISPLAY SETTING
menu.
Display
The thermo-hygrometer display is originally configured with six default display layouts
enabled. The user can enable and configure any of the 16 display layouts to show a variety of
data in numerical or graphical format. Enabled display layouts can be quickly selected from the
main screen using the l and r buttons.
Alarm Screen
The Alarm Screen can be accessed from the main screen by pressing Exit or by entering the
Alarm Menu. If enabled, the alarm screen will appear automatically when an alarm event oc-
curs. When an alarm is displayed the event can be either hidden by pressing Exit or cleared by
pressing Enter.
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