56-101-01175 Revision P Page | 3
C. The process of Calibration requires that the Unit Under Test (UUT) be compared to
Certified Traceable Standards having an accuracy at least 4 times better than the UUT.
Adjustments are made to the UUT in order to align the UUT to the exact values of the
Standards so that the errors at all required test points are zeroed out.
Conducting a simple Bench Check
(*)
(Verification) is quite different to the calibration
process as no adjustments are made to the UUT; so long as test points fall within the
specified allowable tolerances the unit is said to pass. This method disregards the stability
specification for the unit since any number of test increments could fall just within the
maximum allowable error. This may result in units being returned to service and drifting
out of tolerance a few months later.
Note
(*)
:
Barfield does NOT
consider a Bench Check (Verification) process to be a
suitable
or responsible
alternative to an actual calibration/realignment of the
measurement system’s linearity accuracy. Barfield does not endorse this practice
for obvious reasons as the test set cannot be guaranteed to meet its designed
accuracy specifications and especially so under varying operating temperature
situations.
4.
MOBILE DEVICE’S APP INFORMATION
Visit the Apple App Store or Google Play App Store to download the free application,
“Barfield
ADTS,
” onto your iOS or Android mobile device (not supplied).
You can also check Barfield’s website to be redirected to the app store at:
https://www.barfieldinc.com/en/services-and-offers/ground-support-test-equipment
Barfield’s innovative app transforms any iOS and Android tablet or cellphone into a wireless
remote control for the DPS1000.
The app includes all necessary software to remotely operate the DPS1000 using its factory
enabled, free, embedded, secure Wi-Fi (refer to
).
Additionally, the app will detect whether a new firmware version is available when connected
to the DPS1000 and automatically prompt the user to proceed with the upgrade if necessary
(refer to document
42-101-01175_01178
for more detailed information).
5. SOFTWARE UPDATE
A pop up window will appear every six (6) months on the screen, reminding the user to verify
the latest software revision
. Press “Continue” to dismiss the message. Please, check
Barfield’s website regularly for the latest software updates and releases. Also, set up your
mobile device for
automatic updates for Barfield’s ADTS app.