MicroStrain SG-Link User Manual Download Page 20 | Manualshive

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MicroStrain, Inc.

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selectable bridge configuration (full, half, quarter) coupled with a precision shunt resistor
to test the differential input channel and a 0-3 volt photocell to test the single ended input
channel. Each starter kit is shipped with a Tester Board and a detailed Tester Board
Quick Start Guide.

Users are always welcome to contact MicroStrain sales or support to discuss specific
sensor applications in more detail.

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Summary of Contents for SG-Link

Page 1: ...User Manual Version 1 0 3 Micro Sensors Big Ideas www microstrain com SG Link OEM Wireless Strain Node...

Page 2: ...microstrain com support microstrain com ISSUED 15 July 2010 Information in this document is subject to change without notice and does not represent a commitment on the part of MicroStrain Inc While M...

Page 3: ...KMARK NOT DEFINED DIFFERENTIAL INPUT CHANNEL 13 CONNECTING A QUARTER BRIDGE STRAIN GAUGE 15 CONNECTING A HALF BRIDGE STRAIN GAUGE 16 CONNECTING A FULL BRIDGE STRAIN GAUGE 17 PROGRAMMABLE GAIN 18 SINGL...

Page 4: ...TIFICATION 43 TRANSMITTER ANTENNAS 43 SUPPORT 44 OVERVIEW 44 WEB 44 EMAIL 44 TELEPHONE 44 SKYPE 44 RMA 45 30 DAY RETURN POLICY 46 TERMS AND CONDITIONS 47 APPENDIX 1 HOST TO BASE STATION COMMUNICATION...

Page 5: ...plete submersion in saline The aerospace and automotive industry found our sensing systems met their requirements and we ve worked on many groundbreaking projects As our customer base expanded we cont...

Page 6: ...oad cells torque transducers pressure sensors accelerometers geophones temperature sensors and inclinometers The SG Link OEM also has an on board temperature sensor The SG Link OEM employs a 12 bit A...

Page 7: ...boot the node Datalogging Datalogging is a node action whereby all active channels and the sensors attached to them are sampled and the data acquired is written to non volatile memory on board the no...

Page 8: ...d to the node to read or write parameters stored in the node s operating system SEDT Sensor Event Driven Trigger is a method whereby a ceiling or floor output threshold can be set in the node to autom...

Page 9: ...ter The 12 bit A to D converter sends the 3 channels to the microprocessor The firmware in the microprocessor processes the digital sampling into raw data and depending on the sampling method selected...

Page 10: ...SG Link OEM The data is transmitted over the air to the base station during low duty cycle no data is written to the on board memory during the session During low duty cycle the software receives the...

Page 11: ...low duty cycle data The base station receives the data from all the nodes and passes it on to the host software It should be noted here that when using multiple nodes with one base station in low dut...

Page 12: ...es and responds to the command if no command is heard it goes back to sleep This sleep function is used to conserve battery power In idle mode the SG Link OEM is awake and listening for commands from...

Page 13: ...uge on a non flat surface initial offset error in the electronics and small errors in the bridge completion resistors Details of programmable gain and offset use may be found in the Agile Link softwar...

Page 14: ...the single ended input channel Each starter kit is shipped with a Tester Board and a detailed Tester Board Quick Start Guide A word of caution Strain gauges with resistance below 350 ohm in particula...

Page 15: ...It is strongly recommended that shielded wiring be used as this can significantly reduce system noise Please note that the shield of each cable must be grounded at one location only to prevent the oc...

Page 16: ...e used as this can significantly reduce system noise Please note that the shield of each cable must be grounded at one location only to prevent the occurrence of ground loops Shielded wiring can be pu...

Page 17: ...tem noise Please note that the shield of each cable must be grounded at one location only to prevent the occurrence of ground loops Shielded wiring can be purchased from Alphawire part number 1122 www...

Page 18: ...re the gain must be applied through the Read Write EEPROM The gain can not be applied through the Channels tab in the Configuration window as normal Furthermore the gain readout in the Channels tab is...

Page 19: ...ng the bits into host software and finally returning these bits to volts at the software level 0 volts 0 bits 2048 bits 1 5 volts 4096 bits 3 volts and so forth To state it as a formula 3 Volts 4096 b...

Page 20: ...est the differential input channel and a 0 3 volt photocell to test the single ended input channel Each starter kit is shipped with a Tester Board and a detailed Tester Board Quick Start Guide Users a...

Page 21: ...at http www national com mpf LM LM60 html The temperature sensor output is presented on channel 3 of the SG Link The temperature sensor has a measurement range of 25 C to 70 C range accuracy 0 5 C 25...

Page 22: ...4 GND Signal ground common with pin 7 5 Sense Input for three wire mode on quarter bridge strain gauges Leave unconnected for full and half bridge strain gauge applications 6 Ain Analog 0 3 0 volt in...

Page 23: ...State LED appearance Booting up Rapidly flashes 10 times when power is applied recycled Active and idle Throbbing on and off every 1 second Datalogging Illuminates continuously Streaming Illuminates c...

Page 24: ...information on regulatory approvals please see Appendix The SG Link OEM has a chip sized high performance monopole antenna mounted on the circuit board surface Specifications may be found at http www...

Page 25: ...address are not recommended except under special circumstances Address 65535 is a specialized broadcast node address For example if several nodes hear a command for node 65535 to start datalogging the...

Page 26: ...000 by a sample rate of 1024 to equal 9 77 seconds A streaming example We set the number of active channels to 3 We can t set the sample rate because that is fixed in hardware and we know it will be 6...

Page 27: ...methods Sampling Method Time Stamp Source Clock Type Stability Datalogging Omitted to maximize data rate Node Crystal 25ppm Streaming Omitted to maximize data rate Node Crystal 25ppm LDC 1 Hz 1 16 bit...

Page 28: ...e Terminal Strip see Terminal Strip section Here are some example battery life calculations Streaming consumes 25 mA If the battery capacity is 200 mAh the SG Link OEM will stream for 8 hours before t...

Page 29: ...9 Standard Packaging The SG Link OEM is offered as an unenclosed circuit board as standard packaging Please see the Mechanical Drawings section of this manual for dimensions Figure 7 Front Figure 7 Ba...

Page 30: ...erature The SG Link OEM electronics will operate between 40 C and 85 C Extended temperature ranges can be achieved with custom enclosures and suitable power supplies Please contact a MicroStrain Sales...

Page 31: ...ing The sampling rate is a function of the number of active channels If 1 channel is active the sampling rate will be 736 samples per second for the channel If 2 channels are active the sampling rate...

Page 32: ...el 1 sample every 60 minutes for each active channel High Speed Streaming The sampling rate is a function of the number of active channels If 1 channel is active the sampling rate will be 4 000 sample...

Page 33: ...ive finite datalogging sessions before we would have to download the data Example 2 We set the SG Link OEM with channel 3 active with a sampling rate of 512 samples per channel per second and a sweep...

Page 34: ...rain is used The SG Link Tester Board incorporates a selectable bridge configuration full half quarter coupled with a precision shunt resistor to test the differential input channel and a 0 3 volt pho...

Page 35: ...continuous at 32 Hz to 2048 Hz Sensor event driven trigger Commence datalogging when threshold exceeded Real time streaming mode Transmit real time data from node to PC rate depends on number of acti...

Page 36: ...er consumption Operating Temperature 40 to 85 C Dimensions Weight Standard configurations Potted 31 mm x 31 mm x 7 8 mm weight 10 grams Unpotted 31 mm x 31 mm x 5 mm weight 4 3 grams Unpotted 31 mm x...

Page 37: ...MicroStrain Inc 37 Mechanical Drawing All dimensions in mm Figure 8...

Page 38: ...4 GHz RF Transceiver 2 4 GHz RF Transceiver Host for Programming Display Data Acquisition Analog Base Station 2 4 GHz RF Transceiver USB Base Station 2 4 GHz RF Transceiver Serial Base Station DAQ US...

Page 39: ...ation Place the Agile Link CD in your CD ROM drive and follow the on screen instructions to install MicroStrain s Agile Link software o This installation places the Agile Link software on your PC as w...

Page 40: ...tion Read base station EEPROM Write base station EEPROM Short ping Read node EEPROM Write node EEPROM Download page Erase session data Trigger datalogging session Initiate real time streaming Initiate...

Page 41: ...___________________________________________ This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are design...

Page 42: ...15 107 15 109 before declaring compliance of their final product to Part 15 of the FCC Rules If using the SG Link OEM module in portable applications module antenna is less than 20cm from the human bo...

Page 43: ...____________________________ Integrator is responsible for its product to comply with IC ICES 003 FCC Part 15 Sub B Unintentional Radiators ICES 003 is the same as FCC Part 15 Sub B and Industry Canad...

Page 44: ...respond to emails requesting product support within the same business day The more detail you can provide the quicker we will be able to understand your issues and find solutions Data files pictures s...

Page 45: ...r to return any MicroStrain product you must contact us for a Return Merchandise Authorization number RMA Call toll free 800 449 3878 to obtain an RMA from a MicroStrain representative All returned me...

Page 46: ...0 days of the receipt date All free items must be returned together with purchased items in order to receive a full refund Any shipping and or handling charges on the original order cannot be refunded...

Page 47: ...rms of net 30 days up to a pre approved limit may be offered to buyer A late payment charge of one and a half 1 5 percent per month or the maximum percentage rate permitted by law if lower shall be ch...

Page 48: ...Software Buyer may use Software on a multi user or network system only if either the Software is expressly labeled to be for use on a multi user or network system or one copy of the Software is purcha...

Page 49: ...s contemplated in its documentation MicroStrain further warrants that during the Software Warranty Period the magnetic media on which MicroStrain delivers the Software will be free of physical defects...

Page 50: ...xpressly disclaim their warranty obligation pertaining to the Product and in that case the Product is being sold As Is without any warranty whatsoever including without limitation the Limited Warranty...

Page 51: ...surge and cosmetic damage Any hardware software firmware or other products or services provided by anyone other than MicroStrain or Products that have been purchased from inventory clearance or liquid...

Page 52: ...ditions are found to be invalid by any court having competent jurisdiction the invalidity of such provisions shall not affect the validity of the remaining provisions of these terms and conditions whi...

Page 53: ...Base Station to Host Asynchronous Serial Data to Host GND Signal Ground N A Signal Ground Reference RS 232 Asynchronous Character Format Baud Rate 115 2K Parity None Data Bits 8 Stop Bits 1 USB 2 0 C...

Page 54: ...Event Driven Trigger Enter the value 1000 into the Sweeps scroll box Enter the value 256Hz in the Sample Rate drop down Note that a datalogging session of approximately 3 9 seconds has been set Click...

Page 55: ...rate sweep rate channel actions etc for any given session but there is no requirement to do this Right click the base station and a drop down menu appears Click Broadcast and the broadcast menu appear...

Page 56: ...ox for Continuous Streaming Enter the value 5000 into the Sweeps scroll box Note that a streaming session of approximately 6 79 seconds has been set Click Apply Click OK Click View in the menu bar Cli...

Page 57: ...HIFT key and click each node once to highlight it Release the SHIFT key Make sure that only nodes are highlighted not base stations Right click on any of the highlighted nodes and a drop down menu app...

Page 58: ...and right click to get the drop down menu Click Configure and the Configuration window opens Click the Channels tab and apply as you normally would the active channels etc Now click the Low Duty Cycl...

Page 59: ...ng calibrations to the active channels or manually Setup each channel from here When completed click the red X in the upper right hand corner of the Channel Actions window to close it To proceed to Lo...

Page 60: ...ear Click the node in the Available Node frame and a real time graph will appear and graph the samples as they arrive Select Data View from the drop down above the channel headers and the Low Duty Cyc...

Page 61: ...communicate normally until you cycle its power After cycling you will again be able to communicate normally with the node Operating multiple nodes in LDC As was stated above operating multiple nodes i...

Page 62: ...Node A Data Collector window will spawn and all nodes will automatically start Low Duty Cycle As before a Data Collector window is spawned in the graphing area and all nodes being captured are displa...

Page 63: ...smitting LDC or to limit collection to only those nodes selected Likewise the Remove Node or Remove All Nodes menu items can be used to throttle collection To close the Data Collector window click its...

Page 64: ...channel per second Sensor data is transmitted to the base station as it is sampled in real time and is collected displayed and saved by the High Speed Streaming software Please review the Sampling Ra...

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