UniPix&&&&&Atmos&ATMOS&1000&Operation&manual&&&&&Rev.&1.05&page&6/6&
Interfacing ATMOS:
ATMOS! was! conceived! to! allow! transfer! of! the!
captured! results! to! any! computer! (Window,! Mac,!
Linux)! using! the! appropriate! software.!ATMOS!
microUSB! is! connected! to! the! industry! standard!
CP2102!from!Silicon!labs.!
!
Connection! is! read! as! a! serial! port! and!
communication!is!done!at!115200!bauds!using!the!
standard!ASCII!code.!
Commands!are!sent!as!a!single!ASCII!character!and!
will!be!interpreted!by!the!ATMOS!internal!parser.!
Upon! reception! of! a! meaningful! command! the!
device!will!issue!a!reply!followed!by!<CR/LF>!
!
Command/summary:/
The! first! set! of! commands! is! for! downloading!
measurement!data!from!Atmos!:!
l!Atmos! sends! a! string! of! characters! listing!
all! measurements! data! stored! in! the!
memory!
w!Erase!all!data!stored!in!ATMOS!memory!
z!Toggle! the! verbose! mode! on! and! off.! The!
verbose!mode!automatically!returns!all!the!
measurement! data! after! a! calibration!
sequence!
h!Help!command:!this!will!send!the!list!of!all!
available!commands!
!
The! second! set! of! commands! is! for! remote!
controlling! Atmos! for! operation! in! a! robotic!
platform!:!
a!After! receiving! this! command,! Atmos! will!
start!a!calibration!measurement!sequence!
with!the!stored!sequence!parameters.!The!
sequence!parameters!can!be!changed!with!
the!commands!below.!
c!Enter!the!calibration!mode.!
Soon!after!issuing!the!“c”!command,!Atmos!
will!send!the!character!“<”!indicating!that!it!
is!ready!to!read!the!pressure!increase.!The!
calibration! process! takes! place! and! when!
completed! Atmos! send! the! character! “>”!
indicating! that! the! pressure! can! be!
released.!
t!After! receiving! this! command,! Atmos! will!
read! a! string! of! character! terminated! by!
<CR/LF>! used! to! set! the! timing! of! the!
calibration! sequence! (values! should! be!
between!2-10)!
v!Set! the! nominal! displacement! volume! (in!
microliters)! that! is! planned! to! be! tested.!
Enter!a!valid!integer!followed!by!<CR/LF>!
p!After! receiving! this! command,! Atmos! will!
read! a! string! of! character! terminated! by!
<CR/LF>! used! for! the! identification!
number!(max.!8!digits)!of!the!pipette!to!be!
calibrated!
d!After! receiving! this! command,! Atmos! will!
read! a! string! of! character! terminated! by!
<CR/LF>!used!to!set!the!date!in!format!dd-
mm-yy!(i.e.!!24-02-2019).!(note:&the&validity&
of&the&entry&is¬&checked).!
Maintenance
Cleaning
The! instrument! can! be! cleaned! with!a! dry! cloth.!
Never!spill!liquid!on!the!instrument.!
Dust! present! on! the! tip! port! might! be! source! of!
leakage!and!lead!to!improper!measurements.!The!
dust! should! be! carefully! removed! with! a! slightly!
humid!cloth.!Never!use!a!tweezer!because!this!can!
damage!the!port.!
Replacing the joint of the tip port
The!joint!of!the!tip!port!is!designed!to!work!several!
years!without!maintenance.!However,!in!the!case!of!
damage,!the!join!can!be!replaced!by!the!user.!
Please!carefully!follow!these!instructions:!
• Before! changing! the! joint,! order! the!
original!replacement!part!from!UniPix!web!
site!
• Unscrew!the!port!
• Remove!the!elastomer!joint!which!is!inside!
• Replace!by!the!new!joint!
• Tighten! the! port! (recommended! torque:!
0.2!Nm)!
!
ONLY!USE!the!elastomer!joint!provided!by!
UniPix!
A!video!tutorial!is!available!on!UniPix!web!site.!!
Complementary! information! on! maintenance! and!
FAQ!can!be!found!on!the!UniPix!web!site:!
www.unipix-lab.com!
!
