Velleman DVM8855 Manual Del Usuario página 9

a exit the application
b select com port
c print data
d switch between online and offline
e save/load data
f clear graph
g clear all data
h current COM port
i status (OnLine = connected)
j data input (red = receiving)
k current date and time
Using the wireless link
Note: connection can only be established when the thermometer is in scan mode. Consider placing
the meter in lock mode [M] for easy handling.
• Make sure the USB connector of the receiver is plugged into the PC. The red status LED on the
receiver lights up.
• Plug the DVM8855 in the transmitter stand. Place the connector pins at the front of grip [9] first,
than tilt down until the meter snaps in place. To remove, lift the back up first.
• Connect the DC connector of the included power adaptor into the transmitter stand and plug the
other end into the mains (100~240CAC, 50~60Hz).
• Start the DT-8855 software and set the correct com port [b], most likely this will be COM3 (verify
with 'device manager').
• Press the 'ON'-button on the transmitter stand and press the online button [d]. When the
thermometer is in SCAN mode, the status LEDs of both transmitter and receiver start blinking in
sync, indicating there is communication. Data will be shown in the data window [n].
• Setup the software as desired. Set the sample time [t], this is the time the software waits
between 2 interrogations of the thermometer. Set the lower [o] and higher [p] time limits. These
are indicated by a horizontal line on the selected temperature. When the temperature crosses
these lines, the graph will turn red (see example below).
• The measured data can be saved and recalled [e]. The file format is .xls (Excel). Data which is
not saved prior to closing the application is lost.
• Note that the transmitter stand also has an analogue output which can be connected to a plotter
(not incl.) or similar device. Signal scale is 1mV/°F (±1.8mV/°C).
02/03/2009
DVM8855
l max. measured temperature
m min. measured temperature
n data window
o lower alarm limit
p higher alarm limit
q set lower range graph
r set higher range graph
s graph display setup
t set sampling time
u current temperature
v current emissivity setting
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