Mr. Nixie NixieTherm RGB User manual

Assembly Manual NixieTherm RGB
Page 1
Foreword
DearNixiefriend,
Thankyouforpurchasingthisstate-of-the-artNixiethermometerDIYkit.Youhavepurchasedaproduct
thatcaptivatesas aDIYversionacomponentqualityand choiceofmaterialsthatisoutstandingin the
marketandwillcertainly drawtheattentionoftheiracquaintances inthefuture.
However, this also means that you should not "cobble together" this kit in record time. Take a quiet
eveningandaboutonehourtime to build.
Also, you should already have the necessary equipment and knowledge to be able to build such a
high-quality DIY kit without complications. The resulting success will definitely reward you for your
effortandstamina.
Theinstructionsassumeelectronicfundamentals,i.e.youalreadyknowthatICs,LEDsandtransistors
arepoledcomponentsandmaynotbesolderedinreversepolarity.Thesepartsarealsoverysensitive
forelectrostaticdischarge.Furthermore,theusageofa temperature-controlledsolderingstationwith
max.1mmwidetipandcorrespondinglyfineelectronicsolderaswellasappropriatetools(multimeter,
TX10,PH1/2and minislotted screwdriver, sidecutter,tweezers,magnifying glass,etc.)areadvised.
Please follow the steps and tips and hints in this manual. These are all tried out and tested
and allow you a trouble-free setup.
Important Safety Instructions
Duringinstallation,commissioningandmeasurementsandrepairspecialcareisrequired!Assembling
ofthecircuitis at yourownrisk.Thefunctionalitycan notbeguaranteed,northesuitability forcertain
purposes.Theuser himself has to check this andisresponsibleforthissuitability.
Noliabilitycanbe accepted fordamagesarisingduringor asaresultoftheassembly oroperation,in
particularfordamagesresultingfromalackofelectronicskills.
Thethermometermayonlybeoperatedinatouch-proofhousingindryindoorenviroment.Operation
withoutorwithdefectivetubesisnotpermitted!
The person who has completed a kit or has made an assembly ready by extension or encolure
installation,isaccording toVDE0869a manufacturerandthereforeprovided tosupplyalldocuments
whensellingthedeviceandalsogivehisnameandaddress.
Deviceswhichareassembledfromkitsthemselvesaretobeconsideredasanindustrialproductin
termsofsafety.
And now, after these necessary introductory words - fire up your soldering station ...

Assembly Manual NixieTherm RGB
Page 2
Assembling and functional test
Let’sstartwiththeUSBjackBU1.Solderonlytwoofthe housing tabs from component side for
fixingthepartat themoment.
SolderingthefollowingSMDcomponents,itmakessense,first solder only one pin
andbyre-heatingagain, finallyalignthecomponent.
Next fit and solder C11 (47µ) and C2 (82µ).
NowequipLED1.Notethatthethelongerwireistheanode"A"connection.
NextsolderthefivepinsoftheUSBjackandtheLEDfromsoldersideandcutoffthewires.
Nowequipandsolderinthefollowingorder:
C10 (47µ), T4 (Caution, ESD sensitive MosFet), L1 and C3 (82µ).
Nowfitandsolderpushbuttonswitch S1 - please payattentionforastraightfit,nextfitthe two trim-
potentiometersTR1andTR2(payattentionforthecorrectvalue:102= 1k / 473 = 47k) and the8-
pin.ICsocket.
ThenplugthePIC12F629intoit’s IC socket. Payattentionforcorrectorientationofthenotch.
Takeoneofthetwoattached rubber tubesandshortenittoapprox.11 mm.Nowpushthistube
overthemiddlecomponentwireofIC3.
ThensolderIC3fromthecomponentside. Pay special attention forthecorrectorientation(seeleft
handpicture).
Finally,equipfrombottomsideT5andsolderthistransistorfromthecomponentside.
PluginnowtheUSBpowersupply.ThegreenLEDbelowtheUSBsocketmustlightup and the six
RGBLEDsmustalsostartwiththeir color sequence (startingwithredcolour).
NowmeasurethevoltagebetweenAand GND and adjust itto140V(+/-3V)
withTR2HV-ADJUST.
Thenmeasure-justfor control -thefollowingvoltageswithrespect to GND:
ULM ~ 0.3V (temperature dependent, 10mV per ° C)
UREF ~ 2.1V (in the wiper’s middle
position of TR1 TEMP-CAL)
UTEMP ~ 1.9V (6.2 x ULM)
Disconnectnowthepower supply
andcarefullyplacetheboardaside,
butpayattention,asthecapacitorsof
theHV booster remain charged for a
fewseconds.

Assembly Manual NixieTherm RGB
Page 3
If everything is ok. we will start assembling the IN-13 tube and the scale
Pickupthescaleandremovefirsttheprotectivefilmontheside facing away from the engraving a
littlebit.
Thengently removetheinnercut-out of thescale(thetube’soutline),as it wasusedonlyfor
transportationprotection.Nextpickupthetwo tube clips and removealsotheprotectivefilmsfrom
bothsides.Nowfixthescaleupsidedowninasmallvise.
Attention: Please secure the jaws with Gaffer tape or use another protection to avoid
scratching the scale.
Gentlypushthetwo clips intothescalewith
theircutoutfacingtotherear of the scale.
Nextinsertthetubein correct direction,the
anodegridisonfrontside;thefullymirrored
surfacewiththeimprintisontherearside.
ApplytwoM3x10screwstosecurethetwo
LEDcovers(donotforgettoremovethe
protectivefilm)andthe twomounting
bracketsonthescale.Pleasedonotfasten
thescrewstoohard.
Installthecovers inthatwaythattheoval
cutoutisfacingtothe tube’s buttom,the
smallrectangularcutoutto the latertobe
attachedPCB.
Beforefasteningthesecondscrew
compress the sides of the scale to be sure,
thatthetubeclambnextto the LEDcoverswill
properfitintothecutoutof the scale.
Alignthemountingheight ofthetubethatthe
yellow/redmarkonthe tube’s glas willmatch
the14°Clineofthescale.
Threadnowcarefullythe threewiresofthe
tubethroughthecutoutinthePCBwithout
crossingeachother,placethescaleonthe
PCB as shown and secure it with two M3 x 6
self-tappingscrews.
Cutthepinkrubbertube in two halvesand
slide itovertheouterwiresof the IN-13 tube
and all the way down through the cutout.
Nowsolderallthreewiresofthetubewithit’s
solderingpadsandcuttheprotrudingwires.

Assembly Manual NixieTherm RGB
Page 4
Burn-in procedure
Many-butnot all -IN-13tubesareinitially
unableofdisplayingthe full heightoftheglow
colunm.ThereforeonnecttheNixieTherm
boardtotheUSBsupplyandhaveaclose
looktotheIN-13 tube.
Tip: Ifyouonlyseeone small glowandnot
thesmall"pilotglow"lefthand from themain
columnandalsonottheanode grid, thetube
isinstalledthewrong wayroundandyou
haveto"turn"the tubeafterremovingthe
scale.
Nowfit a short piece of wire (for example
fromtheLEDsorthetube) into theburn-in
padsXandY.Theglowcolumnofthe tube
willnowbecomebrighterand will slowly
moveup.
Theburn-inprocedureis finishedwhenthe
glowcolumnreachesthetop ofthetube.This
maytakeseveralminutes.Donotbe
impatient.Note:Thetubeand thetransistor
T3onthebottomwillbecomewarm during
thisprocedure.
Installation into the enclosure
Removetheburn-inwire and thepower
supplyfromtheNixieTherm. Peelupthe
protectivefilmfromthebottompanel and the
rearpanelfrombothsideseach.
AttachthefourM3x12plasticspacerstothebottompanelwithfourM3x8panheadscrews.
Thenfitthefourplasticself-adhesitivefeets to the edges ofthebottom.
SticktheM2.5x6 screw through the drill holes of the printed circuit board atitedges and slide a
self-retaining2.7mmspaceroverthescrewthread from the solder side. Insertthecircuitboard
togetherwiththerearpanel and tighten thecircuitboard.
Finally,removethe protectivefilmsfromthe
threesidepanels,thetoppanelofthecase
andthescale,insertthesidepanels and then
attachcarefullythe topcover.Thesidepanels
needsometimesaslightadjustmenttofitinto
thetopcover’soutouts.After tighteningthe
topcoverwiththeremainingfourM3x 8 pan
headscrews,yourNixieTherm isnearlyready
foruse.
Re-plugthepowersupply totheNixieTherm
andletitoperationalfor aboutanhour.Inthe
meantime,placeanaccuratethermometer
nexttotheNixieTherm.Afteronehouradjust
thedisplayedtemperaturerangeof the
NixieThermwiththetrimmer behind thescale
tothevalueof thereferencethermometer.
Congratulations.

Check Qty. Value Package Ref.
41µ 100
V
Ceramic 1206 C1,C5,C6,C7
4 330pF Ceramic 0805 C4,C8,C9,C12
3 SS19FA Schottky Diode SOD-123FA D1,D2,D3
6 LED PLCC4 RGB Com. Anode 3528 LED1…LED6
1 NE555DR Timer SO-8 IC5
1 LMV358LIDT Dual Operational Amplifier SO-8 IC4
3 T2N7002BK MosFet Transistor SOT-23 T1,T2,T3
1 BC846B NPN Transistor SOT-23 T6
3 Resistor 51R 1206 R1a,R3,R17
2 Resistor 150R 1206 R1b,R2
12 Resistor 1k3 1206 R4,R9,R11,R14a,R14b,R15,R18,R21,R22,R
24,R26,R28
10 Resistor 27k 1206 R5,R6,R7,R10,R12,R13,R16,R19,R20,R27
2 Resistor 270k 1206 R8,R25
13
52
Check Qty. Value Package Ref.
1 LM35DZ Temp-Sensor TO-92 IC3
1 MPSA42 HV-Transistor TO-92 Ammo T5
1 LED ocean 1.8 mm LED7
1 IC Socket DIP-8 IC1
1 PIC12F629 programed DIP-8 IC1
1 BUK98180 MosFet Transistor SOT-323 T4
1 Mini-USB Connector BU1
2 47uF / 100 µF16V Size 6.3 x 5 C10,C11
2 82uF 6V3 Polymer Size 6.3 x 5 C2,C3
1 1 k Trimmer TR1
1 47 k Trimmer TR2
1 Push Button Switch 13 mm S1
1 Inductor 47 uH 10 x 10 L1
8 Fk M3 x 8 Tx Flathat Screw M3 x 8 Fixing top and bottom cover
2 GF M3 x 10 Tx Selftapping Screw M3 x 10 Fixing mounting brackets on scale
2 GF M3 x 6 Tx Selftapping Screw M3 x 6 Fixing mounting brackets on PCB
4 GF M2.5 x 6 Pz Selftapping Screw M2.5 x 6 Fixing PCB on bottom
2 Mounting Brackets M3 + 3,2 mm Mounting scale on PCB
4 DI 12mm Plastic Spacer white M3 Spacers for top and bottom cover
4 Spacer 2.7 x 2 mm for M2.5 Spacers for PCB
2 Rubber Tube 20 mm Isolation of the IN-13 / LM35DZ wires
4 Bumpers selfadhesive transparent 8 x 2.2 mm
22
47
Check Qty. Value Package Ref.
1 NixieTherm RGB board
p
reassembled NixieTherm RGB
1 Acrylic enclsoure parts incl. Scale
1 IN-13 tube
1USB power supply optional
Total SMD parts preassembled
Total THP
Different parts
Stückliste / BOM NixieTherm RGB
Divers
SMD-Bauteile vorbestückt / SMD components preassembled by PCB manufacture
r
V
om Kunden zu bestückende Bauteile / Trough hole components, assembled by customer
Different parts

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
HV
Title
Size Document Number Rev
Date: Sheet of
by Mr.Nixie 0
NixieTherm RGB
A4
01Saturday, July 13, 2019
Title
Size Document Number Rev
Date: Sheet of
by Mr.Nixie 0
NixieTherm RGB
A4
01Saturday, July 13, 2019
Title
Size Document Number Rev
Date: Sheet of
by Mr.Nixie 0
NixieTherm RGB
A4
01Saturday, July 13, 2019
IN-13 Tube
AUX
Anode
Kathode
USB-Conn.
BURN-IN
Black coloured components needs to be fitted and soldered by hand
C3
82u
C3
82u
C9
330p
C9
330p
R20
27k
R20
27k
C8
330p
C8
330p
R22
1k3
R22
1k3
R9
1k3
R9
1k3
IC4B
LMV358IDT
IC4B
LMV358IDT
5
6
7
8
4
R28
1k3
R28
1k3
UTEMPUTEMP
R3
51R
R3
51R
IC4A
LMV358IDT
IC4A
LMV358IDT
3
2
1
C1
1u
C1
1u
R7
27k
R7
27k
C4
330p
C4
330p
R1b
150R
R1b
150R
R24
1k3
R24
1k3
IC1
PIC12F629
IC1
PIC12F629
VDD
1GP5
2GP4
3MC
4
VSS 8
GP0 7
GP1 6
GP2 5
T3
T2N7002BK
T3
T2N7002BK
R17
51R
R17
51R
LED2
3528
LED2
3528
R G B
A
R14a
1k3
R14a
1k3
BU1BU1
1
2
3
4
5
LED5
3528
LED5
3528
R G B
A
K1K1
C5
1u
C5
1u
R14b
1k3
R14b
1k3
T1
T2N7002BK
T1
T2N7002BK
T4
BUK98180
T4
BUK98180
R2
150R
R2
150R AA
C2
82u
C2
82u
T2
T2N7002BK
T2
T2N7002BK
D2
SS19FA
D2
SS19FA
XX
TR2
47k
TR2
47k
D1
SS19FA
D1
SS19FA
R16
27k
R16
27k
L1
47uH
L1
47uH
C7
1u
C7
1u
R5
27k
R5
27k
R6
27k
R6
27k
R8
270k
R8
270k
R10
27k
R10
27k
R21
1k3
R21
1k3
R13
27k
R13
27k LED7
ocean
LED7
ocean C11
47u
C11
47u
YY
R12
27k
R12
27k
R27
27k
R27
27k
T5
MPSA42
T5
MPSA42
LED1
3528
LED1
3528
R G B
A
LED3
3528
LED3
3528
R G B
A
LED6
3528
LED6
3528
R G B
A
R1a
51R
R1a
51R
R18
1k3
R18
1k3
R26
1k3
R26
1k3
GNDGND
R11
1k3
R11
1k3
UREFUREF
IC5
NE555DR
IC5
NE555DR
GND
1TR
2OUT
3RST
4CV 5
THR 6
DIS 7
VCC 8
ULMULM
TR1
1k
TR1
1k
C6
1u
C6
1u
C10
47u
C10
47u
R25
270k
R25
270k
KK
R15
1k3
R15
1k3
R19
27k
R19
27k
S1
PROGRAM
S1
PROGRAM
D3
SS19FA
D3
SS19FA
R4
1k3
R4
1k3
OUT
VS
GND
IC3
LM35DZ OUT
VS
GND
IC3
LM35DZ
T6
BC846B
T6
BC846B
C12
330p
C12
330p
LED4
3528
LED4
3528
R G B
A