Sensor Configuration; Power Switch; Power On Self-Test; Display Contrast - Fluke 5020AThermo-Hygrometer 5020A User Manual

5020A
Users Manual
Used batteries must be disposed of properly. See Warnings at the beginning of this
manual.

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 parameters, and begins to measure if the channel is
enabled (see Measuring).

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 message is displayed. See Troubleshooting for additional information on error
messages.

Display Contrast

If the display appears too dark or too light, you can use the A and D buttons at the main
screen to adjust the contrast. The contrast can also be adjusted from the DISPLAY
SETTING menu (see Display Setting).

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 (see Display Layout). Enabled display
layouts can be quickly selected from the main screen using the B and C buttons.

Alarm Screen

The Alarm Screen can be accessed from the main screen by pressing Exit or by entering
the Alarm Menu (see Alarm Menu). If enabled, the alarm screen will appear
automatically when an alarm event occurs. When an alarm is displayed the event can be
either hidden by pressing Exit or cleared by pressing Enter.

Measuring

The thermo-hygrometer will automatically make measurements on enabled channels at
the set period when a sensor is attached. Channels are enabled using the CHANNEL
SETTING function in the CHANNEL menu (see Record Setting). The measurement
period is also set with this function.
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