Houston Radar LLC
Contents
1. 31 CENE 31 JAPPROV ABS 31 DATA INTE ACES pube 31 MECHANICA D 31 PERTO TEAN remp eL EI SIM MC MD DIM 32 APPENDIX A HOOKING UP THE TRIGGER OUTPUTS THE RADAR M 33 APPENDIX B OPTIONAL BREAKOUT IO BOARD CONNECTIONS 34 OPTIONAL BREAKOUT IO BOARD CONNECTIONS eee e 35 APPENDIX C KEEPING TIME WITH AN EXTERNAL CLOCK BACKUP BATTERY d 36 INTRODUCTION Congratulations on your purchase of the Houston Radar directional Doppler Speed Sensor 55300 This state of the art 24GHz K band microwave Doppler radar 18 specifically designed for the license free battery operated speed measurement and monitoring market Utilizing high performance ultra low power DSP Digital Signal Processing technology and microwave components based on a planar patch array antenna with integrated low power PHEMT oscillator you will find that this high quality product meets your exacting standards for performance and reliability Some of the highlights of this product include Complete speed output Doppler radar with digital proce2. 5 Close Page 19 of 38 Houston Radar 55300 User Manual BOSTON STEP 5 Set Detection Sensitivi 6 Connect to Radar Advanced Connection Radar Setup You can adjust the radar sensitivity via the Speed Unit slider or the numeric up dn Typically the Speed Limits Units mph sensitivity may need to be reduced if you Speed Detection Limits need to restrict the pickup range of the radar B Minimum Detectable Speed Maximum Detectal 11 Low end is limited by radar specification Limits not apply to statistics o llection Detection Sensitivity of Max Range Min 100 rj 10 Detection Direction elect larget For Outp Incoming Outgoing Select Fastest 7 Select Strongest Slow Speed Targets Filter Favor Rejecton of False Slow Pickup Tuning Fork for 30 secs After Power Targets Over Detection Latency Up Detects Both Directions For This Duration More Write To Radar Connected Serial on COM5 Close STEP 6 Set Detection Direction amp Target Selector 6 Connect to Rada Detection Direction Select Incoming for picking up approaching targets and Advanced Outgoing for picking up receding targets Both types cannot be selected Connection Ra
3. Houston 55300 User Manual and Installation Guide K Band Doppler Speed Sensor Built Type SS300 DFT SS300 OFD Rev 8 22 August 2012 55300 in Weatherproof Enclosure 55300 Open Frame Version 55300 55300 Houston Radar LLC 12818 Century Dr Stafford TX 77477 Http www Houston Radar com Email sales Houston Radar com Contact 1 888 602 3111 This device complies with part 15 of the Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Any modification or use other than specified in this manual will strictly void the certification to operate the device This device carries modular approval and as such 15 labeled with ID TIASS300 If this label 1s not visible when the module is installed inside another device then the outside of the device into which the module is installed must also display a label referring to the enclosed 55300 module This exterior label can use wording such as the following Contains Transmitter Module FCC ID TIASS300 or Contains FCC ID TIASS300 Any similar wording that expresses the same meaning may be used Warning SS300
4. Ambient Temperature 23C o Trigger Output Configuration Power Down On Low Voltage Output Hold Time 0 Pe Trigger Output 1 Select the type of light sensor you have Active Low Enable PWM connected Only required if you have Blink Output When Triggered Enable PWM checked in Trigger Output Configuration box above Trigger Output 2 Active Low Enable PWM Blink Output When Triggered Seconds View Rotary Switch Setup 7 Show Rotary Switch GUI Extemal Light Sensor Type Photo Resistor LDR Light Sensor Chip RS232 Interface Enable Mode Always Cable Detect Normally you would connect RS TX amp GND to the RS232 Conn interface However if you connect to only TX amp GND you must select Always ON else radar RS232 interface will power down Page 25 of 38 Houston Radar 55300 User Manual HOUSTON RA DAR STEP 13 Select radar power down mode Connect to Radar lacs Fn Advanced m ph Connection Radar Setup Detection amp Units Data Output Hardware amp IO Config Data Logging Supply Voltage And Ambient Temperature Input Volage 12 0 Ambient Temperature 23C Read Now Calibrate Radar Temp Sensor Trigger Output Configuration Power Down On Low Voltage Output Hold Time 0 Seconds Enable Trigger Output
5. value to never flash the speed output Select Fastest Target if multiple targets are detected on the road 0 Select Strongest Target 1f multiple targets are detected on the road Page 12 of 38 Houston Radar 55300 User Manual HOUSTON RADAR Radar Configuration Variables Continued Configuration Description Variable Name Target detection sensitivity Valid values are from 10 to 99 and are a percentage of max range So a value of 50 would yield about 150 feet detection Note This is not a range setting but detection sensitivity Thus if large vehicles are being detected at 400 feet a value of 50 will reduce detection range for them to approximately 200 feet Radar mode bitmask Bits are as follows Bit 0 SI3 ASCII command compat flag Contact us for more details Bit 1 Enable ASCII console output on RS232 serial port Bit 2 to 6 Reserved in 55300 radar Bit 7 Enable Rotary Switch on 55300 Break out IO board Bit 8 Disable power optimized mode RF ON all the time Bit 9 Reserved Bit 10 Enable extra filtering for slow 16mph 26km h see note 1 Bit 11 Reserved Bit 12 Detection direction 0 only incoming only outgoing see note 2 Bit 13 Gang the effective LO SP HI speeds to external Rotary switch Contact us for details 1f you wish to change the above speed limits 1n the field by turning a rotary switch rather than connecting a PC MD Radar mode bitmask number 2 see note 5 Bits are
6. OFD radar is supplied an open frame format with exposed antenna and electronics and thus is a static sensitive device Please use static precautions when handling Warranty does not cover damage caused by inadequate ESD procedures and practices Note Specifications may change without notice Note Not liable for typographical errors or omissions Table Of Contents INTRODUCTION 5 INSTALLATION etd eet 5 MOUNTING sarine 5 DIRECTION PONTING 6 RECOMMENDED ENCLOSURE FOR THE 55300 440222 0004 6 TOO UT E ME CT TIN C ON 7 Measured Speed stes tias satu Ue dE 7 Setting variables from an ASCII Terminal program via ASCII commands 8 WIRE SIGNAL DESCRIPTIONS 10 USE nint itd diese editis 11 GOC dmm 12 OUTTA TWO UNU os eene sod cO 12 Configuring the Radar via the provided Hou
7. Radar Setup to bring up the GUI 7 i Connect to Radar You can then set various features in the Advanced radar via the different tabs shown here Connection Radar Setup Detection amp Units Data Output Hardware amp IO Config Data Logging Speed Units Speed Limits Units mph Speed Detection Limits 5 Minimum Detectable Speed Maximum Detectable Speed 89 AJ IC IUS 1 Be T 1 Y 4 Low end is limited by radar specification Limits do not apply to statistics collection Detection Sensitivity 2 of Max Range m 100 c 10 100 Detection Direction Select Target For Output Incoming Outgoing Select Fastest Select Strongest Slow Speed Targets Filter F Favor Rejecton of False Slow Pickup Tuning Fork 30 secs After Power Targets Over Detection Latency Up Detects Both Directions For This Duration Write To Radar Connected Serial on COM5 Close 7 lt You must click on Write To Radar button for your changes to be saved to the radar Page 17 of 38 Houston Radar 55300 User Manual HOUSTON RA DAR STEP 3 Select the radar units Radar units apply to the speed output over the RS232 serial port as well the low limit cutoff and high limit cutoff settings Additionally if traffic statistics gathering is enabled statistics are saved in inte
8. as follows Bit 0 Enable low voltage power down See Appendix C for details Bit 1 Enable True Average Speed output see note 4 Bit 2 Force enable the RS232 interface when set Sets to cable detect mode when bit is cleared Power usage 1s increased by 0 012Watts 1f this interface 1s force enabled or if RS232 cable 1s connected Bit 3 Disable count up on startup This speeds the startup by about 3 seconds see note 5 Bit 4 Save traffic statistics 1f enabled in radar in 3mph 5kph speed bins rather than original default of Smph 10kph speed bins see note 6 Speed Increment of the rotary switch on the optional break out board Effective low speed cutoff radar LO Rotary Switch Setting SI HT Output Hold Time in seconds Once the output 15 triggered it 1s held for this amount of seconds from the last trigger source before going inactive Note Only the digital output 1s held The ASCII speed output is not held The ASCII speed output goes to 000 as soon as target 1s no longer tracked Radar IO configuration bitmask Bits are as follows Bit 0 IO 1 Enable for brightness control Radars reads the ambient light sensor connected to the IO Break out board and adjusts load brightness via PWM Full darkness 5 duty cycle Full brightness 100 Frequency 15 240Hz Bit 1 Set IO 1 Active high Clear 10 1 active low Page 13 of 38 Houston Radar 55300 User Manual HOUSTON RADAR Bit
9. enters or other ASCII chars do not generate ERROR when you are not expecting them To get a variable get lt case sensitive var name gt ENTER e g get LO returns LO 5 if value is presently set to 5 If sending the ASCII command via an attached microcontroller the ENTER key press should be replaced by the carriage return and or line feed ASCII character Wire Signal Descriptions Connector Signal Direction Description Pin Name wrt Radar I O3 Reserved for future use 6 5 Reverie 6 4 ____ Oupu Open Drain Output 2 See Nowe 9 RS282 TX RS252 Transmit Signal from radar 5 5 to 18 VDC Power Supply Radar GND battery terminal Note 1 See Appendix A for detailed description on how to hookup an external device to be triggered when radar detects incoming objects Incorrect hookup may result in the outout devices being destroyed and will not be covered under warranty The 55300 features two low impedance outputs that can trigger turn on an external display device to bring it out of power saving mode when a vehicle is detected Both outputs are under radar software control and the typical functionality is to turn both on together when a vehicle is detected However if you need different functionality please contact us When a vehicle is detected and the speed 15 above the LO speed limit and below the HI speed limit both these pins are pu
10. oncoming traffic 150 m 500 feet for larger trucks lorries and vehicles with inherently large radar cross section May vary with installation and road conditions Detection range specified 1s typical for speeds between 20kph and 88kph 12 to 55 mph It tapers off below and above this speed range At the low end of the speed range 2mph 5kph the detection range is about 34 m 110 feet 55300 15 not recommended for roads with speeds above 90 kph 56 mph due to reduced range and tracking time Contact factory for a different radar version if you need to detect vehicles outside said speed range Page 32 of 38 Houston Radar 55300 User Manual HOUSTON RA DAR Appendix A Hooking up to the trigger outputs on the radar The SS300 radar features two open drain outputs The device used for this purpose 15 the On Semiconductor relay driver NUD3124 The output configuration of this device is shown below from the On Semi datasheet The two outputs O P1 and O P2 are brought out on the radar connector pins see IO connector pin out in manual for connector pin numbers This device can sink 130mA of DC current at up to 28VDC However these are low impedance outputs which means that you must externally limit the maximum current that will flow into these outputs to 150mA at the worst case head voltage They may be parallel together to increase this value to 300mA There are two ways to ensure this 1 Connect an output devi
11. settings are written to FLASH memory and are non volatile Do not update settings on a periodic basis e g every second or every minute Only change settings when the user needs it The FLASH memory has a limited number of write cycles and will wear out with excessive gt 10 000 number of writes On the other hand setting the variable to the same value repeatedly is OK because the radar recognizes that the variable has not changed and does not update it in FLASH The ASCII commands are get to get a config variable Set set set a config variable to a supplied value reset resets the radar Required after changing variables MO MD and RS RA for DR series radars only LO HI SP ST SF UN do not require a reset info print out some info about the radar Info is in the format of lt tag gt lt value gt New tags may be added in the future Order of tags may be moved around e g To set a variable variables are documented in the user manual set case sensitive var name value Enter e g set LO 5 alt format set LO 5 sets the low speed cutoff to 5 etc Variables are case sensitive Commands not Success 15 indicated by an OK Failure is indicated by either ERROR Command was recognized but some other error occurred variable not present format not correct etc nothing returned Command was not recognized Entire line was silently discarded This ensures that spurious things like
12. your device Page 15 of 38 Houston Radar 55300 User Manual HOUSTON RADAR STEP 1 Connect to Radar Select your COM port or AutoDetect Port 6 Connect to Radar option and then click Advanced on Connect To Radar Connection Radar Setup Connection Connected Radar Info Connect To Radar On Connection Status COM5 amp 2115200 8 None Radar Software amp 141 Radar Tag amp 1477 Connect To Radar Type HW 55300 2 Radar E Stats Package Enabled Serial ID 00001549d5c5 Radar Clock Thu Jan 1 00 15 51 1970 Traffic Stats Collection Info Erase Radar Data Data Start Time Sync Radar Clock To Computer Data End Time Current Record Time Read Traffic Stats From Radar Page Read Read Stats Data Info Radar Output Importing Into Project Dir No Project Data Transfemed KB 0 1KB Importing Into Open Project No Project Click on the next two boxes The one on the left shows you Connected Serial on COM5 information about the radar that you have connected to which you may ignore at this time Radar System Information REV 141 ID 00001549d5c5 OPT 1 TIME Thu Jan 1 01 21 34 1970 TYPE SS300B02 MODz4 BRD 5 CAP 0x13df STK 882 ENV 13 ERRNO 0 Page 16 of 38 Houston Radar 55300 User Manual HOUSTON RADAR STEP 2 Click on Radar Setup to bring up the configuration GUI Click on
13. 1 Active Low Enable PWM Disable Transmitter Blink Output When Triggered Trigger Output Tf radar has Advanced In Radar Traffic Statistics enabled you must provide an external battery backup to Blink Oy allow the radar clock to keep time see Appendix Keeping Time With an External Clock Backup Extemal Light Senso Battery in case main power is lost In this setup this option must be checked to instruct the radar to go into 9 Photo Resista ultra low power timekeeping mode when main power 15 removed and the lower voltage backup power kicks in Uncheck this option if you want the radar to work 5 AlwaysON normally down to 5 5 VDC and not go into low power R5232 Interface mode below 7VDC More Write To Radar Connected Via Serial on COM5 Close STEP 14 Disable microwave transmitter testing only Check this box in case you wish to turn off the microwave transmitter This will prevent normal operation of the radar and 15 provided only for testing purposes Page 26 of 38 Houston Radar 55300 User Manual HOUSTON RADAR STEP 15 Show Rotary Switch GUI if rotary switch connected The SS300 radar measurement speed limits including the blinking speed limit may be set changed in the field via a convenient rotary switch This avoids having to connect a computer to the radar sign to make this change This rotary switch is present on the
14. 2 to 7 Reserved Bit 8 IO 2 PWM Enable for brightness control Radars reads the ambient light sensor connected to the IO Break out board and adjusts load brightness via PWM Full darkness 5 duty cycle Full brightness 100 PWM PWM Frequency is 180Hz Bit 9 Set IO 2 Active high Clear IO 2 active low Bit 10 to 15 Reserved Configuration Variable Notes Note 1 Extra filtering for slow targets requires firmware version 136 or higher Note 2 Bit 12 of the MO variable sets direction of detection This functionality is available in firmware versions v115 and higher release date Jan 21 2010 Older radars may be upgraded to this version Please contact Houston Radar for a firmware update Note 3 The bits of the MD variable shown here are only supported in firmware versions 133 or higher release date Feb I 2011 Older radars may be upgraded to this version Please contact Houston Radar for a firmware update Note 4 True Average Speed output requires the optional Advanced In Radar traffic statistics collection functionality Note 5 Disable Count up requires firmware version 137 or higher Note 6 3mph 5kph high res traffic stats requires traffic stats to be enabled in the radar and firmware version 138 or higher Page 14 of 38 Houston Radar 55300 User Manual HOUSTON RA DAR Configuring the Radar via the provided Houston Radar Configuration Tool GUI 1 Install the provided Houston Radar Adv
15. 25 GHz 50Mhz US 24 200Ghz on request RF Power Output 5mW Antenna Beam Pattern 45deg x 38 deg Polarization Linear Supply Voltage 5 5V DC to 18V DC Reverse Battery Protected Nominal Current Draw 9 mA avg Ima 12V DC Operating Temp 22 F to 185 F 30 C to 85 C Electronics designed and tested to 40C Weatherproof Yes SS300 DFT build option Open frame also available IR Remote Programmable No Approvals Approvals FCC Part 15 modular approval US Version CE Mark Data Interfaces Serial Communication Data Rate Data amp Pwr Connector Mechanical Weight Dimensions Cable Exit Mounting RS232 Baud Rates from 1200 to 115200 baud SS300 OFD Molex C Grid SL male shrouded 12 pin RA part 70553 0011 SS300 DFT Molex Grid SL female 12 pin mate to above 7 approx 33 grams 1 16 oz 2 17 1 75 0 6 LxWxD 52 x 46 x 16mm SS300 OFD Side via right angle connector SS300 DFT Encapsulated cable from back Four 42 56 standoff s embedded on module Specifications continued on next page Page 31 of 38 Houston Radar 55300 User Manual Performance Speed Measurement Range Resolution Accuracy Detection Range CrN 1 3mph to 100 mph 2 1km h to 161 kph 0 25mph to 16mph 553000 option available 0 006 mph 0 5 of reading 0 1 mph Typically 90 m 300 feet for compact vehicles on open and level road with radar mounted 1 5 m 5 feet high and pointed straight into
16. 5 Close Page 22 of 38 Houston Radar 55300 User Manual HOUSTON RADAR STEP 9 Select Speed Measurement Mode Available with Advanced In Radar Traffic Statistics option only 58 mph G Connect to Radar Advanced Connection Radar Setup Detection amp Units Data Output Hardware amp IO Config Data Logging Serial Communications Baud Rate Data Bits Parity Stop Enable Speed Output On Priman nn Nata Nn Party 1Star If you have purchased the Advanced In Radar traffic statistics option the 55300 can be set to output either real time target speeds over the serial port or internally average all traffic speeds over a specified interval say 30 seconds and output the average speed Enable Speed Output On A Speed Output Format Detec 1 Byte Binary ASCII ASCII with CR ASCII 9 ASCII with CRLF ASCII This is very useful for calculating the average incoming speed of the road for congestion or incident detection purposes or for input into to destination type of applications Targets in all incoming lanes are used to generate this average speed ASCII Speed Output Precision Number of Digits After Decima Normal Fast Speed Measurement Mode 9 Output Instantaneous Target Speed Output True Real Time Average Speed True Real Time Avg Interval 30 Seconds More Write To Radar Co
17. Baud Rate ASCII Format and Output Precision e Connect to Radar 9 PONES Select the Data Output pane m ph Connection Radar Setup Detection amp U ardware amp 10 Config Data Logging Serial Communicatic Baud Rate Data Bits Parity Stop 7 Enable Speed Output On Primary 5232 115200 8Data NoParity 1Stop Enable Speed Output On Auniliary 15232 Speed Output Format For Detected Targets 1 Byte Binay ASCII with Leading and Heartbeat 05 when no target C ASCIlwihCR ASCII with Leading and CRLF send 77 in front of O s ASCII with CRLF ASCII with Leading 5 and CRLF Disable Countup on Startup ASCII Speed Output Precision You can change the radar serial port RS232 port baud rate and speed output ASCII format here Number of Digits After Decimal 0 Enable Speed Output option tells the radar to send out speeds when a target is detected The AUX com port selection is gray as the 55300 has only 1 RS232 port Our DR series radars feature 2 RS232 ports Select how many fractional digits you wish to receive in the speed output The 55300 radar can send up to 3 places of decimal Disable Countup option speeds up startup times by about 3 seconds by suppressing the default 0 through10 count up output over the serial port True Real Time Avg Interval 30 More Connected Via Serial on COM
18. COM port and using the Houston Radar configuration program s Graphical User Interface GUI While this 15 the most convenient way to configure the radar customers may also wish to set the configuration variables directly for example when the radar 15 part of a system and connected to another microcontroller The radar configuration variables and their functionality are described below Configuration Description Variable Name Sets the RS232 serial port s baud rate and output format Do not change this value unless you understand the implications Lower Byte Sets the internal speed units of the radar All LO SP HI SI speeds are interpreted to be in this units MPH 2 FPS Feet per second 2 3 MPS Meters per second Upper Byte Sets number of digits after decimal point LO Low speed cutoff Vehicles are not detected below this speed Minimum value is 2 Should be set to be less than HI Speeds above this limit trigger the and O P2 outputs and sends ASCII speeds Note If the Rotary switch 15 enabled See MO bitmask then the actual Cutoff speed LO Rotary Switch Setting SI High speed cutoff Vehicles are not detected above this speed Maximum value is 159 Should be set higher than LO speed Flashing speed limit Any speed higher than this value flashes the trigger output at 50 duty cycle To flash the ASCII speed 000 are interspersed in the nnn speed output on the serial port Set to HI
19. Extemal Light Sensor Type connected to the trigger output will blink when Photo Resistor LDR lig measured speed exceeds the speed limit setting When this box is checked you can set RS232 Inteface Enable Mode this limit on the Detection And Units tab Always ON Cat Check both boxes if you want to make a wig wag alternating flasher More Output Hold Time Set a value here if you Connected Via Serial 5 want to hold or extend the trigger This 15 useful to turn ON an external device for a minimum amount of time when triggered by the radar Connection Radar Setup Trigger Output Configuration Detection 4 Units Data Out aM me Output Hold Time Seconds If Blink Output is checked the Speed Units threshold above which the output is Active Low F Enable PWM Speed Limits Units blinked is shown on the Speed Detection Limits slider Blink Output When Triggered peed Detection Limits Trigger Output 2 V Active Low Enable PWM 7 Blink Output When Triggered Speed Limit aximum Detectable Speed gg T PEE I 1 hue doo Low end is limited by radar specification Limits do not apply to statistics collection 1 at Ul 20 Houston Radar 55300 User Manual HOUSTON RA DAR STEP 11 Select the light sensor type If you selected
20. Limits Table Page 28 of 38 Houston Radar 55300 User Manual HOUSTON RA DAR Rotary switch GUI setup continued Connection Radar Setup rt Detection Limts Setup Detection amp Units Data Output Hardware amp Config Data Logging _ Speed Limit 2 HO 4 Minimum Display Speed Maximum Display Speed 55 eve Adjust Limits Check Limits Finally pick the low speed cutoff flashing speed limit and high speed cutoff for the rotary switch at position 0 In the graphic shown in position 0 the radar will display speeds and trigger output between 10 and 55kph It will blink the trigger output above 30 mph Then for every turn of the switch all limits will be shifted up by 5mph the increment value Enab 9 5 Connection Radar Setup Detection Limits Setup Detection 8 Units Data Output Hardware amp 10 Config Data Logging Display Setup Speed Limit L HOT Minimum Display Speed Maximum Display Speed 55 r ERN 1 Rotary Switch Speed Increment 5 Test Rotary Switch Position 2 V Enable Rotary Switch Shift All Limits Shift Only Min Display Limit Display Speed Limits Table a Speed Display Table NES Click this button to display the effective limit values when the rotary switch it turned It
21. TECTION SPEED THRESHOLD SWITCH HIGHLOW DETECTION RANGE SWITCH CONNECTION TO THE 55300 RADAR 55300 DOPPLER RADAR BREAK OUT AND SWITCH PANEL BOARD 2009 HOUSTON RADAR NOUSTON TX USA Page 35 of 38 Appendix C Keeping Time With an External Clock Backup Battery Our popular Advanced In Radar Traffic Statistics 1s available as an option in the 55300 radar as well as the PNL10 display which uses the 55300 radar as the speed measurement element The In Radar traffic statistics option generates time stamped historical records that are saved in the on board FLASH memory Hence the 55300 radar needs to keep calendar date and time once it is set from a device typically a PC running our configuration or stats analyzer software If the 55300 is used in a configuration that may disrupt power an external clock backup battery must be connected as suggested below Note Alternatively the clock may be manually reset from an external controller to the correct time once power 15 restored Step 1 Set the Enable Low Power Sleep mode bit in the MD variable this 1s factory default so no operation 1s required if you have not changed it The radar will now enter low power sleep mode where it will maintain the clock once the external VCC supply voltage enters the sleep region as shown in the provided diagram The radar will resume normal operation once the input VCC voltage returns to the region Step 2 Setup an arran
22. ace 1s shown when you check the Show Rotary Switch GUI checkbox You can now enable the rotary switch and set the limits as explained below Page 27 of 38 Houston Radar 55300 User Manual HOUSTON RADAR STEP 16 Using the Optional Rotary Switch GUI Applicable only if you wish to use a rotary switch Connection Radar Setup Detection Limits Setup Detection 8 Units Data Output Hardware 8 Config Data Logging Display Setup ee Enable the rotary switch and decide if you wish to 44 Minimum Display Speed Y control all 3 limits or only the lower cutoff limit AI OTA The blue underline changes to reflect your selection Rotary Switch Speed Increment 5 2 Test Rotary Switch Position V Enable Rotary Switch Shift All Limits Shift Only Min Display Limit Connection Radar Setup Detection Limits Setup Detection amp Units Data Output Next pick a rotary switch increment Display Setup This is the speed step added with Speed Limit every turn of the rotary switch H Minimum Display Speed _ Maximum Display Speed 55 an Aa N Fee K DAN HE a A TA EA E T E NE AA ee eed 1 E Ye nn 1 1 Rotary Switch Speed Increment Check Limits Test Rotary Switch Position 0 2 V Enable Rotary Switch Shift All Limits Shift Only Min Display Limit Display Speed
23. anced Stats Analyzer or Houston Radar Configuration Windows program on a Windows 2000 XP Vista or Win 7 computer 32 and 64 bit computers are supported 2 Connect the radar RS232 port to the PC s RS232 serial port If the PC does not have a Serial port you may buy a USB serial converter dongle from BestBuy Radioshack or any Internet store 3 Power up the radar Ensure the green LED on the front side or back as the case may be flashes every 3 seconds Power must be provided externally unless you have purchased and are using the Houston Radar powered USB dongle part USB RS P1 which provides a COM port to the PC and boosts the USB 5V to 12V for the radar all in a single device Start the Houston Radar Stats Configuration tool program Click on Start gt Connect to Radar Click on Connect button Ensure you see a Radar found on COM message The COM will depend on your computer 8 Click on OK Now you are ready to configure the radar a a um To Radar RS232 12VDC Power To Windows PC USB port Houston Radar USB RS P1 USB powered 5232 interface to the radar For a quick and easy connection from a Windows computer to the radar we suggest purchasing our USB RS P1 powered USB dongle shown above This device connects to a USB port on a Windows computer and provides a RS232 connection and 12VDC power to all Houston Radar devices You can be up and taking to the radar within a few minutes of receiving
24. ant power device current goes down with increasing voltage Method 1 to provide clock backup power Wired OR with two supplies Low Drop voltage diodes SS300 to Wire OR the batteries Standalone Main Battery 8 6V to 18 V OR Clock Backup Battery 4 7V to 6 7V assuming 0 2 diode drop PNL l 0 Display Ensure it cannot be removed or disconnected May be removed Backup battery will provide power to maintain clock Note Please use low forward voltage drop diodes to maintain efficiency Also carefully consider the reverse leakage currents if using a lithium backup battery which is very intolerant of such currents D1 could be a signal diode that has very low reverse currents D2 needs to be rated for gt 1A Method 2 to provide clock backup power main supply switched off but not removed Zener diode to drop enough voltage from main battery to supply between 4 5V and 6 5V to SS300 See Note 1 VCC Standalone O p Main Battery 8 6V to 18 V OR Main power ON OFF switch puts SS300 PNL10 into low power sleep mode May NOT be removed if when turned OFF Zenner still provides time is to be maintained PNLI S 1 enough voltage and current to allow 55300 to when switch is in OFF Play GND keep time with minimal power usage position Note 1 The zenner value should be X and satisfy the following two equations fully charged battery Bmax X 6 5 to 4 5 E
25. ce that is rated to draw no more than 150mA at your supply voltage Vhead This device can be powered up to 28 VDC For example this can be a 12 or 24VDC relay coil rated at more than 150 mA coil current or 2 Connect an external resistor in series with the output load and the O P1 or O P2 pins The value of this external resistor should be calculated as follows ohms law R in K Ohms Vhead Vload drop 150 Load Load Load rated to draw Load i Method 1 max of 150mA at etho Vhead max p Lo Gate 10k 10k Gate Radar Radar CPU CPU BIEN Source 9 Source Both Sources GND Page 33 of 38 Houston Radar 55300 User Manual HOUSTON RADAR Appendix B Optional Breakout IO Board Connections Non Isolated Mosfet version with PWM Brightness Control TO PC COM RS232 PORT SPEED SWITCH 1 FULL AUTO AMBIENT ETC pa LIGHT SENS 2 LDR Available as option 2 K TO 58300 RADAR cy Zy Ct aa 4 BIOZOZZO 9 5 TO dojsn 16VDC Midas A 1 PP FOR RAD amp LOAD 4 HIGH POWER LOAD TRIGGER OUTPUT 2 TRIGGER OUTPUT SA DC MAX 135mA DC 135 DC VCC max FUSE FOR HIGH POWER LOAD NOTES 1 Switch can be enabled in software to change the effective low speed cutoff below which radar will not pic
26. dar S Detection amp Units Select Target The radar detects multiple targets internally but only outputs the speed of one This setting instructs the radar to pick either the fastest speed or the speed associated with the strongest return signal which is typically the closest Speed Detection target but may be a farther one if it is significantly larger E g truck This has no bearing on collected stats as all internal targets are used for logging Speed Units Speed Limits U A Select Strongest if you are picking up the wheels of large vehicles like Low endisiimted Qf tractors or trucks and displaying higher speeds than expected Detection Sensitivi Detection Direction Select Target For Output 9 Incoming gt Outgoing Select Fastest Select Strongest Favor Rejecton of False Slow Pickup Tuning Fork for 30 secs After Power Targets Over Detection Latency Up Detects Both Directions For This Duration More Write To Radar Connected Serial 5 Close Page 20 of 38 Houston Radar 55300 User Manual HOUSTON RA DAR STEP 7 Set Slow Speed Targets Filter and Tuning Fork Mode Connect to Radar bg Advanced mph Radar Setup Detection amp Units Data Output Hardware amp IO Config Data Logging Speed Units Speed Limits Units mph Speed De
27. e radar Thus you can put the radar or sign in stealth mode by setting the low and high cutoff speeds to the maximum value This will prevent the activation of the sign but still allow the radar to collect and save traffic statistics stats collection option purchase required Not available in SS300U ultra low speed radar 7 6 Connect to Radar mph Set the minimum speed you wish the radar to pick up and display This is set the maximum speed you wish also the minimum speed that will ord radar to pick up and display activate the trigger outputs This is also the maximum speed You may enter a number click the that will activate the trigger up dn arrows or move the slider outputs Speed Detection Limits 5 Minimum Detectable Speed Maximum Detectable Speed 88 gt Wo eh gt Se Ge en i ee Pe eee me Limits do not apply to statistics collection Low end is limited by radar specification Detection Sensitivity of Max Range Min 8 100 10 100 Detection Direction Select Target For Output 9 Incoming Outgoing Select Fastest Select Strongest Slow Speed Targets Filter Favor Rejecton of False Slow Pickup Tuning Fork 30 secs After Power Targets Over Detection Latency Up Detects Both Directions For This Duration Write To Radar Connected Serial
28. gement to switch in a 4 5V to 6 8V clock backup battery into the VCC line once main power is removed This may be done two ways Method 1 Wire OR the backup source and the main VCC through two low drop diodes as shown on the next page Diode voltage drop must be taken into account when determining backup voltage For example if the diode voltage drop is 0 6V the backup supply voltage must be between 5 1 and 7 4 volt We recommend a low drop 0 3V low leakage diode particularly for the clock battery when using a lithium battery that cannot tolerate any significant reverse charging current Method 2 If the main supply will not be removed but rather switched off install Zener diode across the power switch such that the radar continues to receive between 4 5 and 6 8VDC when the power is turned off via the switch with the rest dropped by the zenner The power consumed by the radar in low power sleep mode is as follows Installed Configuration Micro Amps Sleep Mode Sleep Mode Consumed in sleep Enter Voltage Exit Voltage 6 5V min 8 7 max 6 5V min 8 7V max Houston Radar 55300 User Manual HOUSTON RADAR Note 1 Connecting a RS232 cable to the radar or forcing the RS232 interface to ON does not affect the sleep power usage Note 2 The radar power usage is approximately constant regardless of the input supply voltage in the sleep region This is different when the radar is in the operational region where is behaves as a const
29. ger mph boundary speed bins for mph and ft sec units and in km h integer boundary speed bins for km h or m s units in the radar Speed Units Select radar units Units may be set to Speed Limits Units PEN nph v one of the values shown Additional units may be added in the future Detection Limits Km h Speed ion Limits Foot perdon Meter per sec 5 5 Minimum Detectable Speed Maximum Detectable Speed 99 pM n M y x4 Xd bE tote heeds Low end is limited by radar specification Limits do not apply to statistics collection Detection Sensitivity of Max Range 100 10 1 007 100 Detection Direction Select Target For Output 9 Incoming Outgoing Select Fastest Select Strongest Slow Speed Targets Filter Tuning Fork F Favor Rejecton of False Slow Pickup Tuning Fork for 30 secs After Power Targets Over Detection Latency Up Detects Both Directions For This Duration Radar Connected Via Seral on COM5 Page 18 of 38 Houston Radar 55300 User Manual HOUSTON RA DAR STEP 4 Set the radar cutoff speeds low and high speed cuto Cutoff speeds affect the measurement range for sending speed out over the serial port and activation of the hardware trigger outputs Cutoff speeds do not affect collection of traffic statistics in the radar Traffic statistics are always collection over the entire measurement range of th
30. he variable Measured Speed Output The 55300 will send out the measured speed via the ASCII interface as a 3 digit speed with an optional direction indicator The format 1s 2 4 nnn ddd n The format of the speed output can be adjusted to any combination of 9 Optional prefix sent when 000 selected to be sent when no vehicles are detected Optional prefix sent when nnn speed is sent for incoming vehicles nnn Three digit ascii speed in the units selected via the UN variable Programmable number of digits 0 3 after decimal point Ar Carriage Return character optional line ending n Line Feed character optional line ending At least one or both of the line endings must be selected with ASCII format No line ending is not an option Please see serial port configuration section for details on how to select the above format Alternatively the radar may be set to output a single byte speed in binary format No line termination is issued when format is set to binary A fractional value cannot be output when the binary output mode is selected Setting variables from an ASCII Terminal program via ASCII commands All the radar variables can be set and queried via a simple ASCII command set over the serial port ASCII commands may be issued via an ASCII terminal program like Hyperterminal or Teraterm Pro Alternatively you may issue these commands from an attached microcontroller All
31. kup targets See MO amp SI variables in user manual for more information 2 Automatic brightness adjustment of LED loads can be enabled via PWM of the load outputs See user manual for more information HOUSTON RADAR LLC 88300 IO CONNECTOR BOARD QUICK START DC Mosfet vertical connectors led switch version right angle DB9 switch amp LED s option is also available Isolated high power AC electronic relay option is available Connecting the load to the High power and trigger outputs You may directly connect your high power DC load amp to J5 The load 15 activated via fuse F1 when the output is triggered You may directly connect a 150mA relay coil or other low power load to amp connectors The load terminals are always wired to The terminals are connected to GND when a vehicle is detected and the output triggered J5 is always triggered at the same time as Page 34 of 38 Houston Radar 55300 User Manual HousTo Optional Breakout IO Board Connections Isolated Solid State Relay version AC or DC capable 9 5VDC 18VDC TO POVVER SUPPLY FOR UP TO 5A S PHO C 1 IT OR 60VDC 8A ISOLATED FOR LOAD SWITCHING T SENS OPTIONAL CONNECTION n TO PC FOR CONFIGURATION amp FIRMWARE DOWNLOADS 2 2X 80VDC 2 OPEN DRAIN OUTPUT FROM 55300 1 SHARED Wi ISOLATED DE
32. lden pads 15 the antenna and 15 the face that must point into traffic Any cover or window in front of the unit MUST be at least 4 away from the face Do NOT spray any conformal or other coating paint or other substance on the antenna The optimum material to use as a front window 15 Lexan Polycarbonate plastic The optimum thickness of the polycarbonate window 15 half wavelength at 24 125Ghz or about 3 5 to 3 7mm 0 137 to 0 146 thick a Alternatively a thin window of any plastic material may be used The maximum thickness this case should be no more than 1 mm 40 mils b Standard 0 25 thick Lexan should be avoided as it has particularly high reflection coefficient due to this specific thickness Other plastic materials may be used as a front window but the optimum thickness will wary with the material s dielectric constant Please contact us for details Alternatively you may consider weatherproof version SS300 DFT that is available from Houston Radar Hookup Power Input The 55300 radar features wide operating input voltage range of 5 5V 18V In a typical application it may be powered from a nominal 12V DC source and will feature best in class operational power consumption of 9mA average There is no other radar in the world that even comes close to this ultra low power usage Competing products may consume up to 20 times more power This ultra low operational power translates directly into a longer batter
33. lled down to GND and held low as long as a vehicle is tracked These pins are released as soon as the radar detects no further traffic This logic may be inverted via a bit in the 10 variable See later section These are open drain AKA open collector outputs capable of sinking 130 mA each You must limit the current externally to ensure that no more than 130 mA goes into each pin when they turn on They may be connected in parallel to double the sink capacity to 260 mA The device providing this functionality on the radar board is the ON Semi NUD3124 relay driver Please refer to the datasheet for this device on detailed operating characteristics for these trigger outputs Houston Radar 55300 User Manual HOUSTON RA DAR USE Turn on the power to the 55300 to make it operational No other action 15 required The radar will activate OUT 1 and OUT 2 open drain outputs whenever it detects a vehicle that is above the programmed lower speed limit the LO value and below the programmed high limit the HI value The default limits set at 5 and 99 at the factory The units e g kph mph fps mps are determined by UN variable The radar will also keep sending out the speed in user selected ASCII format over the serial interface while an incoming vehicle 15 tracked Connect radar to PC RS232 serial port and use provided Windows configuration software to program the high speed limit HI variable The radar de as
34. may be convenient to print this table and use it as a handy reference in the field Alternatively click Check Limits and turn the Test Rotary Switch Position spinbox and see the limits change on the GUI o fel S Tip Print this table and fix next to the switch for a handy reference Print Table Page 29 of 38 Houston Radar 55300 User Manual HOUSTON STEP 17 Optional Advanced In Radar Traffic Statistics lo Cremations Radar Setup Advanced mph Connect to Radar Detection Limits Setup Detection 4 Units Data Output Hardware amp IO Config Data Logging Statistics Options Save And Start New Statistics Record Every 5 2 Minutes Y nct Hain Fitter Enable If statistics logging 1s enabled in your radar a separate purchase option select how long you wish the radar to collect data in speed bins before it saves off the log to internal flash memory and starts a new record This may be set as fast as 1 minute We do not recommend setting this to greater than 15 minutes as the storage mechanism can only log a maximum of 255 vehicles in each speed bin Hence you must ensure that the traffic density cannot exceed 255 vehicles per speed bin per record interval Note that the supplied Windows analysis program can aggregate multiple bins and generate reports 1n half hour or hourly intervals but obviously it cannot disagg
35. nnected Via Serial on COM5 Page 23 of 38 Close Houston Radar 55300 User Manual HOUSTON RADAR STEP 10 Configure the trigger outputs Start by clicking on Hardware amp IO Config Tab 27 Connect to Radar 2 mec Advanced The 55300 has two hardware drain Connection Radar Setup trigger outputs that may be used to trigger an M Py a eee Detection amp Units Data Output Hardware amp Config external device turn on 1 or 2 LED lamps to make stand alone speed enabled flasher or VATCS Vehicle Activated Traffic Calming Read Now Sign 3 Simple enable one or both the outputs and they will be activated if a speed is detected between the low and high speed cutoff values Supply Voltage And Ambient Temperature Input Volage 12 0V Ambient Temperature 23C rigger Output Configuration Pow Output Hold Time 0 al Seconds Trigger Output 81 Enable PWM Check this box if you have a Active Low Enable PWM Disa LED lamp connected to the output and wish the Blink Output When Triggered radar to adjust the brightness based on ambient light You will also need to connect a light sensor to the 55300 to measure the light Trigger Output 2 Active Low Enable PWM Blink Output When Triggered Blink Output when Triggered Check this box if you want to make a flasher The lamp
36. optional IO Breakout board or you may use your own switch However you must first setup the radar to use this rotary switch If you wish to use this feature check the Show Rotary Switch GUT to bring this interface up mum m Connection Radar Setup f KNEE 2525227 FEM T S M 1 Detection Limits Setup Detection 4 Units Data Output Hardware 8 IO Config Data Logging Supply Voltage And Ambient Temperature Input 12 0 Calibrate Radar Temp Sensor Ambient Temperature 23 Trigger Output Configuration Power Down On Low Voltage Output Hold Time 0 Seconds Enable Trigger Output 81 Active Low T Enable PWM Disable Microwave Transmitter Blink Output When Triggered Disable Trigger Output 2 Active Low Enable PWM View Rotary Switch Setup Blink Output When Triggered Show Rotary Switch GUI Connection Radar Setup Detection Limits Setup Detection amp Units Data Output Hardware amp Config Data Logging _ Display Setup Speed Limit EM 4 4 Minimum Display Speed Maximum Display Speed 55 a Rotary Switch Speed Increment 5 Y Check Limits Test Rotary Switch Position Enable Rotary Switch Shift All Limits Shift Only Min Display Limit Display Speed Limits Table The above GUI interf
37. q2 fully discharged battery Bmin X 6 5 to 4 5 Page 37 of 38 m Een digi a 3 Der torere 5 Y 15 INC 2 7 LI ee do I 55 om dim 7 pereeo 4 ree ooo m LI 7 Input Voltage V e lin mA 55300 standalone lin mA PNL10
38. regate longer bins into finer resolutions once the data has been saved in the radar The table shows the tradeoff between logging interval and storage space Hi Resol Stored records may be read by clicking on the Read Traffic Stats From Radar button location on the Connection tab Connect to Radar 10 Firmware version 138 and higher support high res st ction Limits Setup Detection amp Units Data Output Hardware amp IO Config Logging compressed logs Statistics Options When this option 15 enabled Strict Rain Filter data is binned in 3mph 5km h Enable bins rather than Applies a very strict target logging criterion below 25 40 Smph 10km h bins May result in reduced count accuracy below this speed Virtually eliminates rain from getting accepted in stats Save And Start A New Statistics Record Every 5 Minutes Since this generates Hi Resolution Stats Logging ienifi t data th Enable 3mph bkm h record logging Use the new data logging format where radar bins the speeds logs are also compr essed to into 3mph for mph units or 5 km h for km h units wide bins Prior bin widths were 5mph 10km h Records are also compressed Save space 1n flash memor y Houston Radar 55300 User Manual CrN SS300 SPECIFICATIONS General Operating Band K Band Frequency 24 1
39. serts the trigger outputs above this limit If you do not wish an upper detection limit set this value to 159 This will ensure that the upper limit is never reached regardless if the units are set to MPH or KPH Set the LO variable to set the lower detection speed limit The outputs will be de asserted for vehicles below this speed limit The lowest value this may be set is 3 MPH NARROW gt N LLLLJ e edhe Al HUH IS elelo ie Green LED flashes at 1 3 Hz 12 5 duty cycle rate when radar is running giving a visual OK signal In the SS300 OFD version green LED may be installed on the back depending on the requested build option Page 11 of 38 Houston Radar 55300 User Manual HOUSTON gt DAR Internal Clock The radar has a built in clock calendar function This is used to keep the time to date time stamp the historical archive records saved by the Advanced In Radar traffic statistics collection feature that is available as an option in the radar The radar does not feature a clock backup battery So power must remain connected to the radar for the clock to keep time However an external clock battery may be connected to keep time while radar goes into low power sleep mode See Appendix C for more details Configuring the Unit The radar s internal parameters may be configured via the radar s RS232 port after connecting to a PC s RS232 serial
40. ssing Best in class low power usage of only 9 mA at 12VDC 0 1 Watt Unprecedented small size to allow incorporation into virtually any location Advanced DSP based algorithm yields consistent performance and speed detection Typically 90 m 300 feet of pickup distance for incoming vehicles on open and level road Trucks picked up at 450 feet 137 m One RS232 and two open collector vehicle detection trigger outputs Radar internal software is upgradeable the field RS232 PC interface Optional rotary thumbwheel switch input allows changes to speed threshold Optional ambient light sensor input and PWM dimming control radar configuration parameters can be set by user via RS232 serial port Extensive built in self test Now Available Our popular Advanced In Radar traffic statistics INSTALLATION Mounting SS300 OFD is supplied in an open frame format It requires weatherproof enclosure before it may be used outdoors Alternatively it may be mounted as a component in another product that already has a weatherproof enclosure The SS300 OFD should be mounted such that the connector points left or right as shown in the picture on the front page 555 lt 55504 4 The SS300 DFT is supplied in a weatherproof encapsulated enclosure with a pigtail connection This unit may be mounted outside without any further protection from the environment The SS300 DFT should be mounted such that the text Houston Radar on
41. ston Radar Configuration Tool GUI 15 SILEF 4 CONRECEIO 16 STEP 2 Click on Radar Setup to bring up the configuration GUI 17 SILP SI SeT the FOUOYSHUWLS at us dioe e SR NEU 18 STEP 4 Set the radar cutoff speeds low and high speed cutoff 19 SHEP O DCICCHON SCNSINVILY 20 STEP 6 Set Detection Direction amp Target Selector cesses 20 STEP 7 Set Slow Speed Targets Filter and Tuning Fork Mode 21 STEP 6 Setup Baud Rate ASCII Format and Output 22 STEP 9 Select Speed Measurement Mode eed teet nes oo 23 STEP 10 Configure the trigger 24 SenSOP 35s 25 STEP 12 Select RS232 serial data output mode 25 STEP 13 Select radar power down mode 26 STEP 14 Disable microwave transmitter testing 26 STEP 15 Show Rotary Switch GUI if rotary switch connected 27 STEP 16 Using the Optional Rotary Switch 26 STEP 17 Optional Advanced In Radar Traffic Statistics logging 30 55300 SPECIPICATIONJS 2
42. tection Limits If you wish to improve rejection of rain pickup __ and other low speed noise that the radar may pick up enable this option BN When enabled the radar application logic takes extra long to validate targets whose speed is below a threshold typically 16 for SS300 radars This also improves rejection of rain in WRT TW E RTS statistics collection statistics However constant or heavy rain may Max still get picked up as a target 100 Detection Direction Select Target For Output 9 Incoming Outgoing Select Fastest 23 Select Strongest Slow Speed Targets Filter 4 Favor Rejecton of False Slow Pickup Tuning Fork for 30 secs After Power Targets Over Detection Latency Up Detects Both Directions For This Duration More Write To Radar Connected Via Serial 5 Close Directional Doppler radars typically reject tuning forks as they do not appear like a true moving target If you wish to use a tuning fork to activate the radar for testing purposes enable this option if available in the firmware This will disable direction selectivity for the first 30 seconds after a power up making tuning fork pickup possible The radar will automatically revert to normal operation after this time To renter tuning fork mode power cycle the radar again Page 21 of 38 Houston Radar 55300 User Manual HOUSTON RA DAR STEP 8 Setup
43. the face of the unit 1s horizontal The unit be rotated 90degrees from the suggested optimal mounting However in this case the detection range may be reduced by about 25 Direction Pointing The 5500 is directional in nature It may be configured to detect and measure the speed of incoming or outgoing traffic It then rejects traffic moving in the opposite direction Direction of detection 1s configured via a bit in the MO variable in the radar If you are collecting traffic statistics you must configure it for incoming direction For optimal performance NN Radar should be mounted as suggested in the section titled Mounting earlier Radar should be pointed into the direction of the oncoming traffic Radar should be placed along the side of the road to minimize the angle of the oncoming traffic to the radar o cannot be placed right along the side of the road it should be pointed at least 100 150 feet up the road into oncoming traffic The radar may pickup rotating fans Avoid pointing it at fans or compressors Radar should be mounted at least 3 feet high from the road for optimal performance and at least 5 feet off the ground for maximum pickup distance Recommended Enclosure for the SS300 OFD The SS300 OFD radar needs to be enclosed in a weatherproof enclosure for outside use The following needs to be observed for optimal performance l 2 D The front face of the radar with the go
44. to have the radar control your attached LED lamp s brightness you must attached an external light sensor The radar will then measure the ambient light via this sensor and adjust the duty cycle via PWM pulse width modulation This is done with a frequency of 180Hz so that the attached lamp does not appear to be flickering There are two types of sensors that may be used LDR light dependent resistor or IC The LDR is much easier to use and mount and available as a flange mounted weatherproof unit from us The IC type sensor is more linear and calibrated to the human eye but requires you to place it on an external PCB as it 15 a fine pitched SMT IC STEP 12 Select RS232 serial data output mode The SS300 radar turns off the internal RS232 serial driver if 1t does not detect any RS232 voltage level on the RX pin It automatically powers this chip back up once you plug in a 5232 cable This saves about 5 to 10 power when you are not connected to the device However if you must use the RS232 interface in TX only mode e g connected only RS232 TX and GND to your microcontroller you must configure the RS232 interface to be always ON G Connect to Radar ux Advanced mph Connection Radar Setup Detection 8 Units Data Output Hardware amp IO Config Data Logging Supply Voltage And Ambient Temperature Input Volage 12 0V Read Now Calibrate Radar Temp Sensor
45. y life or gives you an option to power the unit from smaller batteries and smaller solar panels Note The radar employs aggressive power saving measures that include turning off parts of the circuit that are not being used at any instant To get a true measure of the power usage of the circuit use a multi meter that has an averaging function and does not suffer from autoranging during measurements Otherwise you will get current readings that fluctuate from 4 mA to 18 mA Note when the under voltage lockout UVL feature is activated the operating voltage range 15 reduced to 8 5 V 18V and dropping the input voltage to 4 5 V 6 5V will put the radar into a sleep mode where it will update the internal clock UVL mode is the default from the factory in radars shipped from Dec 342010 and may be disabled by a bit in MD variable see later section Your power supply to the radar must be capable of supplying up to 40mA of current for up to 5 seconds at a time startup current is higher as the radar 1s initializing its internal systems Serial Connection The 55300 features RS232 interface that is used to output speed access statistics data and configure the unit as explained later in this document The RS232 interface is factory set to default to cable detect mode and will power the interface chip down to save power if the radar line 15 not connected Cable detect mode may be disabled and the interface may be forced ON via a bit in t
Download Pdf Manuals
Related Search