Calibration
ADwin
18
ADwin-Gold
USB / ENET, manual version 3.8, October 2005
6 Calibration
6.1 General Information
The 2 digital-to-analog (DAC, optional 8) and the 4 analog-to-digital (ADC)
converters of the
ADwin-Gold
systems have been calibrated in factory. In
accordance with the regulations for keeping the measurement accuracy in
your field of application, the systems must be calibrated in regular time inter-
vals.
You calibrate the system with the program
<GoldCalib.exe>
; at standard
installation the path is
<C:\ADwin\Tools\ADwin-Gold>
.
Tools
The following tools are necessary for the calibration:
– A digital multimeter (DMM) with an accuracy of
• 30µV when using 16-bit converters
• 120µV when using 14-bit converters
– A reference voltage source with an accuracy of
• 30µV when using 16-bit converters
• 120µV when using 14-bit converters
– connecting cables from the inputs/outputs to the reference voltage
source and to the measurement device (recommended: BNC cables).
6.2 Calibrating
Connect your
ADwin-Gold
system with the computer and configure it accord-
ing to the program
<ADconfig.exe>
.
Calibration has to be made when the
ADwin-Gold
system reaches its operat-
ing temperature. With a power-up temperature of the device of approx. 20 to
25 degrees Celsius (room temperature), the system reaches the operating
temperature approx. 30 minutes after power-up.
Step 1
Start the
calibration program
<GoldCalib.exe>
. The window
"ADwin-
Gold-ENET/USB Calibration Tool
" appears.
Choose the device number of the system you want to calibrate and confirm by
clicking on
"OK
".
You will get a warning when you haven’t chosen an
ADwin-Gold
system or
one of an older firmware version. You can ignore the warning with
"Yes
" or
return to the previous window with
"No
".
An
overview window
appears. In the header line the device number you have
selected is shown.
