User Manual and Instructions
Contents
1. L Igniter Electric Match Bea ga Recommended igniter electric matches The XSSRT 1 has been tested using the Daveyfire 28B 28BR and OXRAL igniters electric matches It is recommended that you test the model you are using to insure proper ignition occurs We here at XAVIEN have used igniters electric matches that are easily available to us for testing If you are using something different than what is listed and want to make sure it will work before buying a XSSRT 1 email us and we will look into testing a unit using your model of igniter electric match Our time is limited so no guarantees on how fast we can do this Battery Connections The XSSRT 1 was designed to operate using a 9V alkaline battery We here at XAVIEN recommend using a switch 3A MAX CURRENT to insure ease of use when powering the unit up and down We have equipped the unit with a small green power indicator so the user can easily identify when the unit has power applied It is recommended that the user do tests using their igniter electric match configurations before assuming anything will work This will help to insure that the XSSRT 1 and your configuration will work to your expectations In figure 6 we have a basic diagram of the battery connections that are recommended by us It is always a good idea to insure2. 22 seconds On On Off Off Off On Delay 35 seconds Off Off Off On Off On Delay 40 seconds On On On On Off On Delay 47 seconds On On Off Off On On Delay 51 seconds Off Off On On On On Delay 60 seconds On On On On On On Delay 63 seconds XSSRT 1 FAILSAFES The XSSRT 1 has two failsafes to protect against accidental timer countdowns The failsafes are ENABLED when FS1 and FS2 are connected together as in figure 3 The unit will NOT begin countdown until BOTH failsafes have been DISABLED OPENED When FS1 is OPENED after power up assuming BOTH failsafes are connected the RED ARMED LED will come on letting the user know it is ARMED Figure 3 FAILSAFES ENABLED FAIL SAFES FS1 FS2 OOOO Vy of Jumper wires Once a failsafe has been DISABLED opened the only way to reset the failsafe is to turn the power off Once this is done you can ENABLE the failsafe and turn the power back on We at XAVIEN have had good luck using solder as the jumper wires for the failsafes Place the length of solder directly under the engine when it ignites it will melt the solder and countdown will begin You can also use the pull pin technique or break wire technique Figure 4 shows an XDSRT 1 set up using both failsafes with the pull pin and break wire technique To ARM the timers you turn the key lock switch OFF
3. once this is done the RED ARMED LED should activate assuming you have the power from the battery connected and turned on Once the rocket takes off the FS2 connection will be broken OPENED and countdown will begin Make sure you remove the key of the key lock switch before the rocket is launched Figure 4 Basic timer configuration PYROTECHNIC DEVICES e 5 de D RED LED turns on eel when timer is ARMED Jg FS1 OPEN sge ERE ES KEY LOCK le TO ARM DISARM a TIMER FS1 Wire loops back where it can be pulled OPEN E A by the rocket after launch Wire is 2 pieces that have exposed copper twisted together FS2 V4 IMPORTANT All connections FAILSAFE settings and switch position must be set BEFORE you apply power to the XSSRT 1 Pyrotechnic Installation The XSSRT 1 has been tested using various igniters and electric matches To install a pyrotechnic device onto the XSSRT 1 you simply unscrew the terminals located as in figure 5 The terminals are screw based terminal blocks for easy access and reliability User does not need to worry about which terminal goes to which leg of the igniter electric match Make sure you hand tighten screw terminals after igniter electric match has been installed Figure 5 Pyrotechnic device install location
4. xavier XSSRT 1 Xavien Single Stage Rocket Timer User Manual and Instructions 3 O O O N H a s ca a ni d GY sid NO E MM MMM M PEA a i Wid XAVIEN PO Box 7433 Goodyear Az 85338 www xavien com System Overview The XSSRT 1 is a precise 1 second to 63 seconds single stage timing system used to control the ignition system in a rocket Time settings are set using a 6 position DIP switch that eases programming It runs off of an external DC power supply ranging from 7V to 15V a 9V alkaline battery is ideal for powering the XSSRT 1 Various igniters electric matches may be used because of the versatility and design of the XSSRT 1 Specifications Battery external 7 15 VDC Dimensions 0 95 0 05 W x 2 5 0 02 L Weight 14 2 grams Nominal Battery Load 15mA Delay Settings 1 second to 63 seconds in 1 sec increments Operational Overview Figure 1 depicts the component layout of the XSSRT 1 The switches are labeled 1 through 6 accordingly The ON position for the switches are labeled at the top of each DIP switch pack Figure 1 XSSRT 1 Assembly MCU DIP Switch C 000000 Igniter Electric x Match y
5. WWW XAVIEN COM 8 S Battery zZ Battery RED ARMED LED FS1 FS2 FAILSAFES Figure 2 gives a close look at the DIP switches and explains time value of each switch Table 1 gives examples of various time settings For example to get a delay of 10 seconds you would turn ON switch 2 and switch 4 2 seconds 8 seconds 10 seconds rest would be OFF The timing begins counting down as soon as BOTH failsafes are OPEN disabled If the unit is powered up with both failsafes OPEN the unit begins counting down immediately Make sure failsafes are in place BEFORE applying power to the unit Figure 2 DIP Switch with all switches in the OFF position Al EE Switch Time Value 1 second 2 seconds 4 seconds 8 seconds 16 seconds 32 seconds O On amp GO Po IMPORTANT Switches MUST be set prior to turning power on to XSSRT 1 The MCU ONLY reads the switch settings on power up If changes need to be made turn unit OFF set switches and cycle power back ON Table 1 Example of delay settings Switch Setting Time Delay 1 2 3 4 5 6 Off Off Off Off Off Off Delay 1 second default On Off Off Off Off Off Delay 1 second Off On Off Off Off Off Delay 2 seconds On On Off Off Off Off Delay 3 seconds Off On Off On Off Off Delay 10 seconds Off Off Off Off On Off Delay 16 seconds Off On On Off On Off Delay
6. are 0 125 this allows various size screws to be used Just verify the clearance of both the screw and the head to insure a proper fit without damaging the unit XSSRT 1 0 5 12 7mm 2 05 52 07mm 2 5 63 49mm OUTPUT URGENT The XSSRT 1 MUST be protected from ejection charge and motor residue These are corrosive and over time can damage the XSSRT 1 If this occurs the warranty does not cover this type of damage Igniter Electric Match Sources Manufacturers e Daveyfire 7311 Greenhaven Drive Suite 100 Sacramento CA 95831 www daveyfire com e Luna Tech OXRAL 148 Moon Drive Owens Cross Roads AL 35763 www oxral com www pyropak com Handling Precautions These units are sensitive to damage from ESD and should always be handled in a properly grounded environment damage from ESD is not covered under the warranty Never transport or handle a rocket with an XSSRT 1 that is powered up and connected to live pyrotechnic charges When installing an XSSRT 1 to igniters make sure unit is powered off Before cycling power ON verify that both failsafes are ARMED to prevent accidental discharge l Product Disclaimer and Limit of Liability Since the use and application of this equipment are beyond our control the purchaser or user agrees to hold XAVIEN and their agents from any and all legal claims demands actions debts liabilities judgments costs and attorney fees arisin
7. g out of claimed on account of or in any manner predicted upon loss or damage to property of or injuries to or death of any and all persons arising out of the use of this equipment Due to the nature of electronic devices the application and environments for these devices the possibility of failure can never be completely ruled out It is the responsibility of the purchaser or user of this equipment to properly test and simulate the actual conditions under which the device is intended to be used to ensure the highest degree of reliability safety and success Product Warranty The XSSRT 1 has a warranty of 1 year starting from date of purchase as long as all the guidelines have been followed that are outlined is this document Any improper use or carelessness on the part of user will void the warranty If your unit has problems send an email to RMA XAVIEN COM Once this has been done XAVIEN will send you a return material authorization RMA number that you need to include with your unit DO NOT send any units back to XAVIEN without this RMA number if we receive product with no RMA it will NOT be accepted and mailed back unrepaired Revision History PCB REV 1 00A DATE 08 15 2003 FW REV 1 00A DATE 08 15 2003 DOC REV 1 01A DATE 08 09 2005 UPDATED LOGO
8. you have a fresh new battery before any launches occur After all the cost of a battery is nothing compared to the time and money spent on many of our users rockets Figure 6 Recommended battery connections XSSRT 1 S Co NJIAYX 002 GREEN POWER LED POWER SWITCH Ad311Vg 3NMVAT1V A6 Setup Sequence This is the recommended sequence for setting up the XSSRT 1 1 2 3 4 Make sure unit is NOT powered up if it is turn it OFF Set DIP switches to desired time delay Install failsafes making sure screw terminals are not loose hand tighten only Install igniter electric match making sure screw terminals are not loose hand tighten only Install a fresh 9V battery making sure screw terminals are not loose hand tighten only Reversing the polarity of the battery can damage the XSSRT 1 when installing the battery refer to figure 1 for the correct polarity If green LED is ON turn switch to OFF position if you will not be immediately launching your rocket This saves on the life of the battery When you are ready to launch turn switch to ON position the XSSRT 1 is ready to go Mounting Installation The XSSRT 1 must be installed securely to prevent the unit from being damaged during use Since this unit does not depend on a g switch orientation of the unit is very flexible The mounting holes
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