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Temp’n’Glow IN‐16 Nixie Thermometer Documentation "Temp'n'Glow", the new secret among nixie enthusiasts, is a Nixie tube thermometer for the slim, beautiful IN‐16 tubes. Fast, secure installation without any adjustment are the features of this kit as well as its modern look. 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". A high light is the so‐called "Cathode Poisoning Prevention". This feature allows the digits to go through certain periods (slot‐machine effect). This will protect the cathode deposits and as a result of that your tubes live longer. Enjoy your "Temp'n'Glow" Nixie tube thermometer! This document is copyrighted. No parts of this documentation may be used commercially. ...
Temp’n’Glow IN‐16 Nixie Thermometer Documentation 1 Safety and Legal Warnings DANGER: This circuit design includes a switching‐mode voltage converter which generates 170 VDC. Therefore, assembly should be attempted only by competent qualified personnel experienced in 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 e adhered to. Retain Instructions: The safety and operating instructions should be retained for future reference. • If one of the tubes is broken or damaged, immediately pull the power plug out of the thermometer a nd contact the customer support. • The tubes are made of glass and are consequently very easy to break. Because of their fragility, it is important that you keep the thermometer in a safe place free from the possibility of being struck 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. • No part of the thermometer or the power supply may be used for other purpose other than described i n 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, laundry tub, in a wet basement, near a swimming pool, in a sauna, etc. In addition the thermometer shoul d be kept out of direct sunlight and high temperatures. • Object and liquid entry: Care should be taken so that the thermometer does not fall into liquids or have 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 ...
Temp’n’Glow IN‐16 Nixie Thermometer Documentation 2 Features ‐ Input voltage from 10 ‐ 14 Volt DC ‐ Low current consumption is 150 mA ‐ Standard power adapter for worldwide use available ‐ very high efficiency by using modern switching pow er supply technology ‐ switchable flo or lighting ‐ pcb illuminat ion by LED light (can be switched off) ‐ easy to build ‐ no smd parts ‐ sophisticated software with us er menu ‐ Cross fading selectable in 5 different level s or to be switched off ‐ Cathode poisoning prevention ‐ Up to 2 temperature sensors connectable ‐ "minus sign tube" ‐ "minus sign tube" can also be replaced by left decimal dot ‐ Error detection for faulty te perature sensor or faulty signal ‐ small, compact circuit board ‐ Simple 2‐button operation ‐ including mounting spacers ‐ alternating cycle between inside and outside te mperature selectable ‐ All settings are stored in case of power failure ‐ no adjustment nece ssary ‐ measuring range from ‐55°C to +85°C / ‐67°F to +99° F ‐ Display in ° C or ° F ...
Temp’n’Glow IN‐16 Nixie Thermometer Documentation he inside and outside temperatures (or vice versa) are shown in the interval that is set in the menu change interval) 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 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 2 = Cross Fading value 3 = number of prob es = Unit 5 = CP Prevention Whi yo u are in the menu the following settings are: ‐ Cross fading and CP Prevention are generally deactivated. ‐ The decimal dot of the right tube flashes with an interval of 0.25 secon ds ‐ 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. ...
Temp’n’Glow IN‐16 Nixie Thermometer Documentation 4 = Units The display shows "4x", whereby the value x has the range from 1‐2 . The values of x have the following meanings: = The tubes show the temperature in the unit ° C (factory setting) = The tubes show the temperature in the unit ° F 5 = CP Prevention The display shows "5 x" whereby the value x h as the range from 0‐1. The values of x have the following meani ngs: = 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: The minus sign or the left decimal dot of the lef t tube and the right decimal dot of the right tube is 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 splayed and the minus sign or he left decimal point blinks left in the rhythm of 0.25 seconds (no cross‐fadi ng). he right decimal point of the right tube remains unchanged in its function. ...
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Temp’n’Glow IN‐16 Nixie Thermometer Documentation A little hint to mount the tubes: After you have drilled, you need to connect the tube wires through the holes in the spacer. 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 9 Soldering Attention: If you have purchased the acrylic case for the thermometer, please read that documentati 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 ...
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 ‐ Cut the fuse holder contac ts ‐ Stretch silver w ire (diame ter 1mm) ‐ Solder wire from the rear ‐ Bend the wires ‐ Pull 2 pieces of shrinking tube (21 mm) over the glow lamp wires and shrink ‐ Pull a piece of shrinking tube (18 mm) over the wire of the hold er and shrink ‐ Blacken the front tabs of the holder with a black permanent mar ker to prevent a mirror effect. ‐ Solder holder into the board (distance is set by shrinking tube) Building the glow lamp holder ...
Temp’n’Glow IN‐16 Nixie Thermometer Documentation 11 Solder the tubes Next, the tubes are soldered. The tube is now getting a "step cut" so the wires can be put into the holes on the pcb more easily. To be sure that the tube is soldered correctly into the board it is important to know where the anode is. Figure 4 The "step cut" The anode is marked white and you find it at the back of the tube. You can see this easily in the picture below. Figure 5 Anode marked white – tube layout IN‐16 The longest wire after the “step cut” should be the anode wire. See where this wire goes: Figure 6 Anode marked on the pcb ...
Temp’n’Glow IN‐16 Nixie Thermometer Documentation So start with this wire and put the rest of them into the other holes on the board. Do not cross any wires . All holes hold wires after the tube has been mounted. No hole is free! lign the tubes rectangular. You should first solder only two wires and check the angle. Now solder the est of the wires and cut he rest not too close to the pcb. Figure 7 tubes and glow lamp mounted 12 Solder the Leds efore you solder the Leds, you have to bend the according to the following sketch. ...
Temp’n’Glow IN‐16 Nixie Thermometer Documentation Figure 8 LED bent Solder the Led’s so that the anode goes in the hole "A " and the cathode in the hole "K". The anode is the longer wire of the LED. The diode must look through the hole in the board. It has to be placed entirely on the tube floor so that the blue light can be clearly seen. If the distance is too long, the blue lig ts cannot be seen well. Please be careful that the wires of the LED do not touch the tube contacts!! Figure 9 LED soldered 13 Switching off the underside LED illumination The Leds illuminate the underside of the board, creating a beautiful effect in a n acrylic enclosure at night. f you do not want the effect, you can easily „switch“ that off. With the kit you have received 2 adhesive pads. They can seal the lights towards the bottom and thus is blocking the light downwards. To turn off the under body lighting you knead the adhesive pads for half a minute in your fingers and then form them into a ball. Press the balls carefully to the LED as shown in the Figure below. e careful not to press the wires from the LED to the pins of the Nixie tubes. Make sure that the pins of the ubes are cut short. Figure 10 adhesive pads mounted to prevent under body lighting ...
Temp’n’Glow IN‐16 Nixie Thermometer Documentation 14 Mounting the temperature sensors You can connect one or two sensors to your board. The temperature sensor (IC6 on the board) should not be soldered because the temperature is higher in he immediate vicinity of the board than the room temperature and thus the temperature would be incorrect. This component position is only for testing purposes. lways connect the temperature sensors using shielded cable to the board for accurate readings. With your kit you get a readymade cable (1 meter) with a se nsor and a plug connected. The cable(s) are connected to the terminals X1 and (or) X2. ou can also make a cable yourself. Please do that according to a special documentation that is available or download from our website. 15 Maximum length of sensor cables The thermometer is designed for a maximum cable length of 10 meters. Please only use the cables from the shop. Otherwise you might get disturbances in the capacity of the cable data transfer. or short cables (1 meter), you can use your own 2 pin, fully shielded cable. But we recommend the cable rom our web shop. 16 Connecting the thermometer to power All necessary settings can be made using the menu system. The thermometer must be mounted in a ...
Temp’n’Glow IN‐16 Nixie Thermometer Documentation 17 Specifications Minimum input voltage: 10 V Nominal input voltage: 12 V Maximum input voltage: 14 V Maximum input current at 12 V: 150 m A Maximum input power at 12V: 1.8 W Measuring range: ‐55 ° C to +99 ° C Range: ‐ 67 ° F to +99 ° F Tolerance: ± 0.5 ° C in the ran e of ‐10 ° C to +85 ° C Overall width module: 97 mm otal depth Module: 67 mm otal height module: 65 mm all rights reserved – www.nixiekitworld.com ‐ April 2012 ...