Instructions

1620A “DewK” Thermo-Hygrometer
Getting Started Guide
10
Connect the Sensor
The sensor for channel 1 connects to the socket at the top-right, and the sensor for channel 2, if
used, connects to the socket on the right side. Either sensor may be used with an optional exten-
sion cable up to 100 feet (30 meters) in length.
Connect the Power Source
The thermo-hygrometer draws power from the provided power adapter. Plug the adapter into
a wall outlet of the appropriate voltage and insert the DC plug into the DC power input of the
thermo-hygrometer.
Switch the Power On
Power is turned on and off with the power switch located below the stand on the back panel. To
switch the power on, toggle the power switch to the ‘
’ position. To switch power off, toggle the
power switch to the ‘
’ position. The instrument takes a few seconds to power up, initialize,
and begin normal operation. A self-test is performed, displaying the channel configuration and
status of the system, calibration, % battery power, memory, and buttons. If the thermo-hygrom-
eter calibration has expired and the alert message is enabled, the user is notified and must press
the Enter button to continue initialization. If an error message is displayed on power up see the
Troubleshooting section in the User’s Guide.
Measure Temperature
After initialization, the temperature and relative humidity measurements for the enabled chan-
nels are displayed. If recording is enabled, the measurements will be automatically stored in
memory. The display can be configured to display the measurements in a variety of numerical
and graphical formats. For information on the various modes of operation of the thermo-hy-
grometer, see the Menu Functions section of the User’s Guide.