8
MORDAX : DATA
User Guide
SYS V. 01.00.00
BOOT V. 01.00.00
Updated: 161229
Like all measurement equipment, the voltage accuracy of the DATA’s inputs and outputs are reliant on many factors, such as
the system’s calibration scheme, the initial accuracy of the performed calibration, and changes in the physical environment
(e.i., temperature). To best mediate environmental effects, it is recommended to perform calibrations after the DATA has been
powered on for a period of 30 minutes or longer. The DATA’s votlage calibration is composed of two interlinked routines, Manual
Calibration and Automatic Calibration. Let’s take a look at each of these.
Manual Calibration is used to calibrate the DATA’s digital-to-analog converters (DACs); these are the DATA’s voltage outputs.
Unlike the Automatic Calibration covered next, Manual Calibration is not intended to be performed often, as it requires the use
of a Digital Multimeter (DMM) or other voltage measurement device with sub-millivolt precision. At the factory, each DATA is put
through a “burn-in” period, where the unit is powered for ~1 hour, after which manual calibration is performed using a 5.5 digit
DMM, in addition to other tests. Despite calibration at the factory, the Manual Calibration routine may need to be performed on
your DATA from time to time. As long as you have access to a reliable DMM or similar device, the process is simple:
Automatic Calibration is used to calibrate the DATA’s analog to digital converters (ADCs); these are the DATA’s voltage input
sensors. Automatic Calibration relies on the DATA’s internal signal routing matrix to send known voltage levels into the ADCs
and record their values. This process should be done whenever using the DATA in a new environment, after the unit has warmed
up, prefferably for > 30 minutes.
To perform Automatic Calibration, enter the Settings program, navigate to the ‘Miscellaneous Systems Items’ page, then scroll
with the rotary encoder knob to select ‘Auto Calibration Routine’ from the submenu and follow the on-screen instructions.
Calibration
Manual Calibration
Automatic Calibration
1. Power on the DATA for at least 30 minutes. From the DATA’s main
menu, hit button 1-4 to access the Settings program.
2. The Settings program opens in the ‘Memory’ page. Hit button
2-2 to navigate to the ‘Miscellaneous Systems Items’ page (top box
MISC), then scroll with the rotary encoder knob to select ‘Manual
Calibration Routine’ from the submenu. With this item highlighted,
push in on the encoder to access the Manual Calibration Routine.
This takes you to the entry screen for the routine; press START to
begin.
3. Follow the on-screen instructions, first measuring the OUT1 jack
for a range of voltages, then the OUT2, OUT3, and OUT4 jacks.
4. Once Manual Calibration is complete, the calibration information
is stored in the DATA’s onboard non-volatile memory. Neither Manual
Calibration information nor Automatic Calibration information are
stored on the microSD Card, so if your card is ever replaced for
any reason, you won’t need to perform a Manual Calibration again
(unless you want to).
5. Immediately after the Manual Calibration finishes, the DATA will
start the Automatic Calibration routine to calibrate the DATA’s analog
to digital converters (ADCs), applying the new Manual Calibration
values.
