Nixie Temp n Glow IN-16 User manual

Temp’n’GlowIN‐16NixieThermometerDocumentation

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"Temp'n'Glow",thenewsecretamongnixie

enthusiasts,isaNixietubethermometerfortheslim,beautifulIN‐16tubes.

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Fast,secureinstallationwithoutanyadjustmentarethefeaturesofthiskitas

wellasitsmodernlook.

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Butthetechnologyisstateoftheart,too.

Asmartmenusystemmakesoperationeasy.

Adjustablechangeinterval,errordetectionandmanyotherfeaturesarestandardon

"Temp'n'Glow".

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Ahigh togo

lightistheso‐called"CathodePoisoningPrevention".Thisfeatureallowsthedigits

throughcertainperiods(slot‐machineeffect).

Thiswillprotectthecathodedepositsandasaresultofthatyourtubeslivelonger.

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Enjoyyour"Temp'n'Glow"Nixietubethermometer!

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This document is copyrighted.

No parts of this documentation may be used commercially.

Temp’n’GlowIN‐16NixieThermometerDocumentation

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Tableofcontents

1SafetyandLegalWarnings .....................................................................................................3 

2Features ........................................................................................................................................4 

3Functions ......................................................................................................................................4 

4Settings..........................................................................................................................................5 

5Displaylimits ..............................................................................................................................6 

6Errorindication..........................................................................................................................6 

7SpecialNotesontheIN16tubes..........................................................................................6 

8PartList .........................................................................................................................................8 

9Soldering.......................................................................................................................................9

10 MountingoftheNeonglowlamp.................................................................................... 10 

11 Solderthetubes.................................................................................................................... 11 

12 SoldertheLeds...................................................................................................................... 12 

13 SwitchingofftheundersideLEDillumination........................................................... 13 

14 Mountingthetemperaturesensors............................................................................... 14 

15 Maximumlengthofsensorcables.................................................................................. 14 

16 Connectingthethermometertopower........................................................................ 14 

17Specifications......................................................................................................................... 15

Temp’n’GlowIN‐16NixieThermometerDocumentation

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1 Safety and Legal Warnings

DANGER:Thiscircuitdesignincludesaswitching‐modevoltageconverterwhichgenerates170VDC.

experiencedin

Therefore,assemblyshouldbeattemptedonlybycompetentqualifiedpersonnel

electronicsassemblyandhighvoltagesafety.

Safeassemblyandoperationofthiskitiscompletelythereader’sresponsibility.

Readinstructions:Allthesafetyandoperatinginstructionsshouldbereadcarefullyandcompletelybefore

hethermometerisoperated.Heedwarnings:Allwarningsontheapplianceandintheoperating

nstructionsshouldb

ieadheredto.

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RetainInstructions:Thesafetyandoperatinginstructionsshouldberetainedforfuturereference.

nd

•Ifoneofthetubesisbrokenordamaged,immediatelypullthepowerplugoutofthethermometera

contactthecustomersupport.

•Thetubesaremadeofglassandareconsequentlyveryeasytobreak.Becauseoftheirfragility,itis

ofbeingstruck

importantthatyoukeepthethermometerinasafeplacefreefromthepossibility

inadvertently.

•Nopartofthethermometermaybeswallowedorinsertedintobodyopenings.

•Thepowersupplymaynotbeswallowedorinsertedintobodyopenings.

n

•Nopartofthethermometerorthepowersupplymaybeusedforotherpurposeotherthandescribedi

thisusermanual.

•Waterandmoisture:Thethermometershouldbekeptinadryroomfreefromhumidityanddust.The

thermometershouldnotbeusednearwater–forexample,nearabathtub,washbowl,kitchensink,

d

laundrytub,inawetbasement,nearaswimmingpool,inasauna,etc.Inadditionthethermometershoul

bekeptoutofdirectsunlightandhightemperatures.

orhave

•Objectandliquidentry:Careshouldbetakensothatthethermometerdoesnotfallintoliquids

themspilledoverthethermometer.

•Donotusethisapplianceforanythingotherthantheintendeduseasdescribedinthemanual.

•Immediatelypullthepowerplugoutofthethermometerandcontactthecustomersupportifthe

mance.Inthiscase

appliancedoesnotappeartooperatenormallyorexhibitsamarkedchangeinperfor

donotrunthethermometeragain!

•Thisthermometerisnotatoy!Keepthisthermometeroutofthereachofchildren.

Payattentionthatthisthermometershallonlybetouchedbypeoplewhohavecompletelyreadand

•

understoodtheusermanual.

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IMPORTANT:Pleasefollowtheassemblystepswithextremecare.Pleaseoperatethethermometeronly

inanenclosedhousingwhichpreventscontactwiththedangerousvoltagespresentonbothprinted

circuitboards(PCB).

DISCLAIMER:Theinformationinthisdocumentisprovidedstrictly'asis'.Itisherebystatedthatthiskitis

tobeassembledonlybyexperiencedelectronicsengineers.Notroubleshootinginformationisprovided.

Readersshouldnotattempttobuildthiskitand/ordesignunlesstheyarecompetentatelectronics

assemblyandunderstandthedangersofmainsvoltages.Further,www.nixieclocks.detakesno

responsibilityforanypossiblepersonalorpropertydamage.Noresponsibilityisacceptedforanydamage,

injury(howeverserious)ordeath.Innoeventshallwww.nixieclocks.debeheldliabletoyouoranythird

partiesforanyspecial,punitive,incidental,indirect,consequential,oranyotherdamagesresultingfrom

heassemblyoruseofthiskitand/ordesign.Theassembledunitshouldbeproperlyencasedtoprevent

contactwithhighvoltages.

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AllapplicableUL,CCE,VDEandlocalregulationsmustbeconsidered.Commercialuseofthekit,circuit

designs,softwareoranypartsthereofrequiresexpresswrittenpermission.

Temp’n’GlowIN‐16NixieThermometerDocumentation

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2 Features

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‐Inputvoltagefrom10‐14VoltDC

‐Lowcurrentconsumptionis150mA

forworldwideuseavailable

ersupplytechnology

‐Standardpoweradapter

‐veryhighefficiencybyusingmodernswitchingpow

orlighting

ionbyLEDlight(canbeswitchedoff)

‐switchableflo

‐pcbilluminat

‐easytobuild

‐nosmdparts

ermenu

sortobeswitchedoff

‐sophisticatedsoftwarewithus

‐Crossfadingselectablein5differentlevel

prevention

‐Cathodepoisoning

‐Upto2temperaturesensorsconnectable

‐"minussigntube"

replacedbyleftdecimaldot

peraturesensororfaultysignal

‐"minussigntube"canalsobe

‐Errordetectionforfaultyte

‐small,compactcircuitboard

‐Simple2‐buttonoperation

mperatureselectable

‐includingmountingspacers

insideandoutsidete

‐alternatingcyclebetween

‐Allsettingsarestoredincaseofpowerfailure

ssary

F

‐noadjustmentnece

‐measuringrangefrom‐55°Cto+85°C/‐67°Fto+99°

‐Displayin°Cor°F

Longcablesavailableforexternalsensorupto10m

Pre‐assembledtemperaturesensorcableavailablefromwebshop

‐

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3 Functions

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Preliminaryhint:

emperaturesensor1=insidetemperature

emperaturesensor2=outsidetemperature

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Leftdecimaldotofthelefttube:

asnofunctioniftheminussignneonlampandR42areinstalled.

howsanegativesignofthetemper inus‐neonlampisinstalledbutR42isinstalled.

Satureifnom

ightdecimaldotofthelefttube:

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RNofunction

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Leftdecimaldotoftherighttube:Nofunction

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isdisplayed.

Rightdecimaldotoftherighttube:

.

Itshowswhethertheinsideortheoutsidetemperatur

tlightsupwhentheoutsidetemperatureisdisplayed

tisnotlitwhentheindoortemperatureisdisplayed.

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Display:

°Cor°F,dependingonwhichunitinthemenuis

Thetwotubespermanentlyshowthetemperaturein

set.

Thedisplayistwodigits–nodisplayof½adegree.

Atnegativetemperature,theminussign(neonlamporleftofthedecimaldotoflefttube)ison.

Temp’n’GlowIN‐16NixieThermometerDocumentation

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(

heinsideandoutsidetemperatures(orviceversa)areshownintheintervalthatissetinthemenu

changeinterval)

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Menu/Settings:

"Menu"buttonintheusermenuisasfollows(circlemenu):

emperatureDisplay>>Changeinterval>>crossfadingvalue>>numberofprobes>>unit>>CP

Prevention

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fter"CPPreventionisshownthemenugoesbacktoTemperaturedisplayifyoupresstheMenubutton

gain.



Themenuisshownby



thelefttubeasfollows:

1=changeinterval

Fadingvalue

es

2=Cross

3=numberofprob

=Unit

5=CPPrevention



Whi yo

le uareinthemenuthefollowingsettingsare:

ds

‐CrossfadingandCPPreventionaregenerallydeactivated.

‐Thedecimaldotoftherighttubeflasheswithanintervalof0.25secon

.

‐Theminussignresp.theleftdecimaldotofthelefttubeisturnedoff



Afterselectingthemenuitem,the"Set"buttonisusedtochangethevalues.

Thisvalueisindicatedintherighttube.Eachpressofthebutton"Set"incrementsthevaluebyonestep.

fterhavingreachedthehighestvalue,thevalueserieswillstartagainfromthebeginning.Subsequently,

llsettingsaredescribed.

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4 Settings

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„1“=changeinterval

rebythevalueofxistherange1‐9(inseconds).

nside/outside/oronlyoneofthem)isupdatedatarangeof1‐9seconds.

Thedisplayshows"1x"whe

aluex=Thetemperature(i

actorysetting=2seconds.



astherangefrom0‐5.

„2“=CrossFadingvalue

wherebythevaluexh

ollowingmeanings:

Thedisplayshows"2x"

Thevaluesofxhavethef

f

0=CrossFadingisof

1=veryfastcrossfading

rysetting)

2=CrossFadingfast

3=Crossfadingfast(facto

=slowcrossfading

5=veryslowcrossfading



Thecross‐fadingaffectsalldigitsofthetubes,theminussign(ortheleftdecimaldotofthelefttube)and

therightdecimaldotoftherighttube.

heCrossFadingisgenerallynotactivewhenscrollingthroughduringtheCPProtection,orwhileyouare

nthemenuandwhileanerrorisdisplayedbytheleftdecimaldot.



„3“=Numberofsensors

Thedisplayshows"3x",wherebythevaluexhastherangefrom1‐2.

Thevaluesofxhavethefollowingmeanings:

1=onetemperaturesensorisconnectedtosocket1orsolderedonthepcb

2=onetemperaturesensorisconnectedtoasocketorsolderedonthepcbandasecondtemperature

ensorisalsoconnectedtosocket2orsolderedonthepcb(theusualwayforoutdoortemperature

easurement)‐(factorysetting)



Temp’n’GlowIN‐16NixieThermometerDocumentation



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4=Units

Thedisplayshows"4x",wherebythevaluexhastherangefrom1‐2

(factorysetting)

.

Thevaluesofxhavethefollowingmeanings:

=Thetubesshowthetemperatureintheunit°C

=Thetubesshowthetemperatureintheunit°F



astherangefrom0‐1.

5=CPPrevention

x"wherebythevaluexh

ngs:

Thedisplayshows"5

Thevaluesofxhavethefollowingmeani

=Preventionisoff

1=CPPreventionison(factorysetting)



IfCPpreventionisswitchedon,theCathodePoisoningPreventionisexecutedevery5minutes.

Thisisdoneasfollows:

ttubeandtherightdecimaldotoftherighttubeis

Theminussignortheleftdecimaldotofthelef

switchedon.

Thedigits0‐9arescrolledthroughbothtubes.

urationofthescrolloperation:4seconds

fterhavingdonethatthedisplaywillshowthetemperaturesagain.



5 Display limits



fthe(theoretical)temperatureisbelow‐99orover+99°Cor°Fthedisplaystillshows‐99to+99.

6 Error indication

Ifoneofthesensorisnotconnectedorproducesabadsignal,then"99"isdi

heleftdecimalpointblinksleftintherhythmof0.25seconds(nocross‐fadi

herightdecimalpointoftherighttuberemainsunchangedinitsfunction.

splayedandtheminussignor

ng).



7 Special Notes on the IN-16 tubes

ThereareseveralvariantsoftheIN‐16tubes.OnehasaholewithØ4mminthespacer,theotherhasnot.

Hereyoucanseethisdifference:



Withhole:withouthole

 



fyoufitanyunderbodylightingtubes,thisdifferenceisnotimportanttoyou.However,ifyouinstallan

underbodylighting,youhavetorefertothefollowing.



Ifyouusetheversionwithaholeinthespacer,thereisnoneedtochangeanything,becausetheLED

exactlyfitsintothishole.

Butifyouusetheversionwithoutthehole,thenyouhavetodrillaholeofØ4,5mmintothemiddleofthe

spacer.Todoso,slideawaythespacerfromthetubeanddrillthehole.

Note:FromNocrotecyougetmatchedtubesetsWITHholeinspacerfortheLEDs(HERE)

Temp’n’GlowIN‐16NixieThermometerDocumentation





Alittlehinttomountthetubes:

holesinthespacer.



Afteryouhavedrilled,youneedtoconnectthetubewiresthroughthe

hiscaneasilybedonebya„spiralstaircasecut“ofthewires.

henthethreadingintothespacerandtheboardwillbemucheasier.



PinoutIN‐16seenfromtop



Stepcutofwires



Temp’n’GlowIN‐16NixieThermometerDocumentation





8 Part List

Part No Pieces Description

BRD1 1 pcb

ASP 2 Adhesive pads

C01 1 Capacitor 1 nF

C10-C16 7 Capacitor 100 nF

C31 1 Electrolytic-Capacitor 4.7µF, U=250V

C23 1 Capacitor-Capacitor 220µF/25V

CR1 1 Resonator, 3-pin, 4MHz

D1 1 Diode UF4004

D2 1 Diode, 1N4004

H1-H4 10 Screw M3x6mm

H1-H4 4 Distance holder M3 15 mm

IC5 2 Bolt, M3

IC1-2 2 74141 or similar

IC3 1 ATtiny461-20PU

IC3 1 IC-socket 20 pin

IC4 1 MC34063A

IC5 1 Regulator, 5Volt, 1A, 7805

IC6 1 DS18S20 Temperature sensor with cable (1 meter)

L1 1 Coil 330 µH / 1,4 A

R10-R11 2 Resistor, 180 Ohm

R20 1 Resistor, 390 Ohm

R30-R31 2 Resistor, 2,2k

R32-R33 2 Resistor, 4,7k

R38 1 Resistor, 8,2k

R40-R43 4 Resistor, 16k - R42 resistor not needed if you do not use left decimal point in left tube

R50-R51 2 Resistor, 68k

R60 1 Resistor, 180k

R70 1 Resistor, 1,1M

S1-S2 2 Push button 3.5x8, 35mm

T1-T2 2 Transistor MPSA42

T3 1 FET IRF630, mounted on pcb

X1-X2 2 Connector for temperature sensors, angled, 2,54mm, 3 pin

JP1 1 Jumper Header, 2 pin, angled

JP1 1 Jumper black, 2,54 mm

X3 1 Socket for power supply plug (5,5mm / 2,5 mm)

You get a complete set of 2 IN-16 tubes with hole in spacer, 2 LEDs and the Minus

Glow Lamp from www.nocrotec.com



Temp’n’GlowIN‐16NixieThermometerDocumentation





9 Soldering

Attention:Ifyouhavepurchasedtheacryliccasefor

documentati

thethermometer,pleasereadthat

onfirst!

Firstsolderalltheflatcomponentssuchasresistorsanddiodes.

ResistorR42:Thisisonlyusedifnoglowlamp(GL1),buttheleftdecimalpointofthelefttubeisusedas

anegativeindicator.

IfyouusetheGL1glowlamp,R42isnotmounted.

ThensoldertheICs.IC3issocketed,sosolderthesocketherefirst.WhensolderingtheICspleasewatch

utforthemarkingthatyoufindontheICandonthepcb.ThenL1,thecapacitors,theresonatorCR1and

hecoilaresolderedin.Theresonatorhasnopolarity.



Figure1resistoranddiodesmounted



Figure2jumperpins,capacitorsmounted



NowsolderthetransistorsT1,T2,T3andIC5.T3andIC5haveaheatsink.Thecomponentsareinstalled

horizontallyandaresecuredwithM3x6screwsandM3nutsonto the board. This is to cool the

components.Thentheconnectionsforthetemperaturesensors,thepushbuttonsandthepowersupply

connectoraresoldered.Whenyousolderthepowersupplyconnectormakesurethatitisflushtotheback

ofthepcb.Thisisimportant,ifyouconsidertouseouracrylichousing.

Temp’n’GlowIN‐16NixieThermometerDocumentation





Figure3pcbnearlyready



Nowturnthecircuitboardandsoldertheholderfortheglowlamp,ifyouwish.Youcanmounttheneon

lowlampwithouttheholder.Thewiresoftheneonglowlampshouldbeisolatedwithshrinkingtubeto

reventashortcircuit.



10 Mounting of the Neon glow lamp

‐Cutfuseholdertab

ts

ter1mm)

‐Cutthefuseholdercontac

ire(diame

‐Stretchsilverw

‐Solderwirefromtherear

‐Bendthewires

‐Pull2piecesofshrinkingtube(21mm)overtheglowlampwiresandshrink

erandshrink

kertopreventamirroreffect.

‐Pullapieceofshrinkingtube(18mm)overthewireofthehold

Blackenthefronttabsoftheholderwithablackpermanentmar

Solderholderintotheboard(distanceissetbyshrinkingtube)

‐



  

Buildingtheglowlampholder

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