RS-1104 SMT A3 Datasheet
Contents
1. General Description The SMT A3 Wireless Data Acquisition unit is a multi channel high precision measurement device designed to interface with a variety of different building sensors The sleek design of the SMT A3 allows it to be installed in occupied spaces in building units and homes The SMT A3 seamlessly attaches to a double junction box and supports up to eight external sensors with optional integrated sensors The 24 bit A D and long range wireless proven on the SMT A2 platform is duplicated on the SMT A3 making it ideal for building monitoring in both new construction and retrofit work Options for integrated CO2 RH temperature and differential pressure are available upon request The SMT A3 communicates wireless sensor readings to the SMT Building Intelligence gateway Optional powered repeaters can be used to extend the wireless range Applications Permanent monitoring solutions Remote sensor analysis and data collection High precision data acquisition Building science research Targeted repair monitoring Data Acquisition SMT A3 Gateway BiG with USB Interface SMT I2 Structure Monitoring Technology SMT A3 Datasheet SMT A3 8 Channel Wireless Data Acquisition Unit Features e Supports up to 8 external resistance channels capable of reading wide moisture content ranges and precision thermistors Supports up to 8 0 5V sensors such as RH pressure differential LVDT displacement2. Serial Number Unique identifier of this unit used in BiG and Analytics Battery Replace batteries if the voltage is Voltage less than 2 4V The unit will stop functioning if the battery voltage is less than 1 8V Indicates A3 has time 3 Indicates A3 does not have time Join network with BiG to establish time You may need to wait up to 5 minutes for the unit to establish time s No link established Link established Message transmit successful Signal 4 No signal Ensure Strength connectivity to network Ensure PAN is correct and there are no range obstacle issues alll Full signal strength SMT Research Ltd 200 75 W Broadway BC V5Y 1P1 Tel 204 480 8579 Fax 204 480 8579 Website www smtresearch ca Email info smtresearch ca RS 1104 Rev 4 Page 5 To join the network ensure BiG is running with an SMT I2 USB to Wireless interface and select Network Joining Network will be displayed if joining was successful Joining Network on 25 will be displayed where 25 is the wireless channel otherwise No Network will be displayed To rejoin the network select Join To see the status of the network select Info from the main menu AZ Charre Las Timers 2k SoM fli PAM a E Function Description Channel Channel is autoset by the SMT A3 PAN Personalized Area Network PAN is specific to all A3 and I2 devices on the network Sample Log frequency This is inherited from the SMT
3. light sensors and more Supports up to 4 differential voltage inputs capable of reading sensors such as thermocouples heat flux and more Gain amplification boost circuitry is available to measure very small voltage differentials Optional integrated relative humidity and temperature sensors Sensors are installed using a two part terminal block permitting sensor lengths to be cut to their appropriate lengths and terminated prior to installing electronics Large internal memory allows an 8 channel unit to log hourly data for up to 3 years without extracting data Wireless transceiver with 1000m line of sight communication Optional repeaters can be used to extend the wireless range Communicates to SMT Building Intelligence Gateway BiG via USB to Wireless device SMT I2 Extreme low power device and 3 AA battery pack makes the SMT A3 suitable for long term battery operation USB connectivity supports data downloads configuration and firmware upgrades Backlit LCD user interface for easy network and sensor verification Internet Analytics SMT Research Ltd 200 75 W Broadway BC V5Y 1P1 Tel 204 480 8579 Fax 204 480 8579 Website www smtresearch ca Email info smtresearch ca RS 1104 Rev 4 Page 2 Structure Monitoring Technology SMT A3 Datasheet Electrical Performance Measurement Specifications Wireless Internal Temperature Specification IEEE 802 15 4 Sensor Cantherm MF58104F3950 Beta 439
4. 0K Range 40 C to 70 C Resolution 0 1 C Accuracy 1 C Working Frequency 2 4 GHz 2 4835 GHz Power 20dBm 100mW Output Range 1000m Powered repeaters can be free air added to extend range Internal Relative Humidity optional Sensor Honeywell HIH 4000 001 Interchangeability 0 59 RH 5 60 100 RH 8 Resolution 0 5 RH Accuracy 5 RH Hysteresis 3 RH Repeatability 0 5 RH Max Nodes per 32 dependent on application density coordinator and acquisition speed Battery Life 3 5 years depending on sample rate Type 3 AA Alkaline Battery Pack l Resistance Memory and USB Range 100 to 1000 Resolution 10 Accuracy 5 Memory 16 Mbit EEPROM for data storage Stores 340 000 data points USB USB 1 0 Interface Range 1000 to 100KQ Resolution 100 Accuracy 1 Environmental Range 100KQ to 1GQ Resolution 1KO Accuracy 5 Operating 0 to 40 C 32 to 104 F Temperature Voltage Range OV to 5V Resolution 100mV Accuracy 5 Standard Enclosure Storage Temperature 25 to 70 C 13 to 158 F Humidity 5 to 100 RH non condensing Electrostatic 8kVdc air 4 kVDC contact Discharge ESD exposed inputs Enclosure The enclosure is designed for indoor use only Consult SMT for outdoor rated units Dimensions Regulatory Regulatory Contains FCC ID OA3MRF24J40MB mol Connections This device complies with Part 15 of the FCC Rules Operation is subject to R
5. I2 setting in BiG All units on the network will have the same timer Number of samples in memory To clear the log hold Menu and press Select 5 times Select Erase Log Nwk ID Unique network ID identifier Measurements can be taken at anytime regardless of the network status If a network is available a reading will be displayed and transmitted If not the readings will be logged and transmitted later when the network becomes available The A3 MUST have time in order to log a reading Measure Select Measure to force a reading Values for internal sensors will be displayed ue ee rr The display and backlight will time out after 10 seconds Press SELECT to keep it from timing out The display is normally OFF for power savings SMT Structure Monitoring Technology SMT A3 Datasheet Building Intelligence Gateway Configuration Inputs appear in the Building Intelligence Gateway BiG as New SMT A2 with default values in resistance Q or voltage mV depending on the sensor Select the appropriate sensor type and identify the temperature sensor for compensation if applicable to have the desired unit of measurement displayed Refer to the BiG User Manual for further instructions on programming the sensor inputs creating jobs and synchronizing with Analytics ES Fie View Analjixs Help 1J Nodes BB vcs A New Viewing Options New SMT AZ 8125 H rratty ter 8124 j tad a03 y Last Rooding Raadng D
6. ate 232C 12 09 11 120000 4553 XRH 1209 7111200 00 1409771120000 B Graph Alarms Temper SS73 C 120911 120000 z 5 Mowture 680 120311 120200 R PMM Teto 7 8125 3 Tampe JAT 1209711120000 run ME 812 a Momre 280 1209 1120000 O PUM Tero 125 2 Tenper S373 120311 120000 unuci 8125 22 Moature 880 12 08 11 120000 Pum lero iS 23 Temper S373 C 120911120000 m m b 1 Project 90 My Project Gateway 251 GM_Mac Job 10 Default Job Last successful syne at 24 07 2012 1245207 AM A list of the various inputs and sensor types is listed in the table below Input Function Sensor Type 6 Integrated RH HIH 4000 RH 3 2 2 Resistance Voltage 22 Resistance Voltage 23 Resistance Voltage Pressure if included All Sensors 25 24 Resistance Voltage CO2 if included COZIR 5000 PPM Inputs 21 to 24 can be either configured as resistance based or voltage based sensors depending on the configuration selected If Pressure is included it will be allocated to input 23 and if CO2 is included it will be allocated to input 24 Specific delays and warm up times are included to support these sensors SMT Research Ltd 200 75 W Broadway BC V5Y 1P1 Tel 204 480 8579 Fax 204 480 8579 Website www smtresearch ca Email info smtresearch ca RS 1104 Rev 4 Page 6 Ss T Structure Monitoring Technology M SMT A3 Datasheet USB Interface The USB port can be used for data collection unit configura
7. e 4 Installation Install a non metallic double gang mounting box at the desired location Ensure the junction box has clearance for the center mounting screw on the A3 Double gang low voltage bracket used in existing construction Manufacturer Arlington LV2 Distribution MCM Model 28 6356 Double gang plastic junction box used in new construction Manufacturer T amp B NuTek 2FWSW CRT Distributor Home Depot Model 2WSW UPC Affix battery back to rear or side of junction box Route sensor wires into junction box and terminate on provided terminal block headers Secure the A3 toa double gang junction box A3 with integrated RH T Differential Pressure and CO2 sensors T Structure Monitoring Technology M SMT A3 Datasheet Configuration Use the LCD display and menu buttons to verify the operation of the A3 It is recommended to place the Building Intelligence Gateway BiG in its desired location so wireless signal strength and communication could be verified Refer to the BiG Quick Reference Guide and Manual for further setup and configuration options User Interface If the A3 is OFF press Menu followed by Select to turn the unit ON You will be prompted to turn the unit ON To turn the unit OFF at anytime press Menu followed by Select The main menu contains links to the submenus as shown below The header reports the immediate status of the unit Status Menu Description
8. esistance Ports 4 to 8 channels the following two conditions 1 this Resistance 1000 to 1GO device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Voltage Ports 4 to 8 channels 5V GND Vin Or Differential voltage Interface Contains IC 7693A 24J40MB LCD Network join rejoin Display measurements Buttons Menu Select buttons Specifications are subject to change without notice SMT Research Ltd 200 75 W Broadway BC V5Y 1P1 Tel 204 480 8579 Fax 204 480 8579 Website www smtresearch ca Email info smtresearch ca RS 1104 Rev 4 Page 3 Input Port Connectivity A3 s can be configured to have 8 resistance inputs 8 voltage inputs or 4 resistance and 4 voltage inputs In addition to the sensor inputs the A3 has a variety of optional integrated sensors Integrated Sensors A variety of sensors are available to measure parameters at the installed location of the A3 Faceplates are vented accordingly to allow the sensor to access the parameter being sensed Optional sensors that can be included are as follows 1 Relative Humidity sensor 2 Temperature sensor 3 CO2 sensor 5000 ppm range 4 Differential pressure sensor Resistance Based Sensors py Resistance based sensors such as PMM s EMS sensors thermistors and linear displacement potentiometers can be used Connect sensors t
9. o ports 17 to 24 Polarity is not important unless specified by the sensor Unused ports can be left open or factory negated Sensors that require temperature compensation should have the temperature inserted into the lower number so it is recorded first For example a PMM should connect temperature to port 17 and moisture content to port 18 Ss T Structure Monitoring Technology M SMT A3 Datasheet 0 5V Sensors 0 5V sensors such as RH sensors differential pressure sensors and solar radiation sensors can be connected to the A3 The A3 can be configured to have 8 voltage ports 8R or 4 resistance ports and 4 voltage ports 4R4V as shown in the diagram below Power is switched on individually to all connected sensors each sensor is permitted to draw a maximum current of 50mA Sensors have a warm up time of 3 seconds SN 5087 EH 03 12 QC 4R4V unit with CO2 Install resistance sensors in 17 20 and voltage sensors in 21 to 24 using the centre connector as a ground bar Connect the CO2 sensor to input 24 Voltage Sensor 2 Voltage Sensor 4 5V Input 5V Input Common Ground Bar 5V Input Voltage Sensor 1 Typical sensor connectivity for 4R4V model Grounds are interconnected on ground bar located in the center between the two 8 pin terminal blocks SMT Research Ltd 200 75 W Broadway BC V5Y 1P1 Tel 204 480 8579 Fax 204 480 8579 Website www smtresearch ca Email info smtresearch ca RS 1104 Rev 4 Pag
10. search ca Email info smtresearch ca RS 1104 Rev 4 Page 7 Hook faceplate on top Push CO2 unit up while and push down pushing down on faceplate
11. tion and firmware upgrades A K o A3 with RH T CO2 and A3 installed in living space pressure port SN 5087 EH 03 12 QC Troubleshooting Unit appears to be frozen or will not turn on e Battery power may be too low Check the battery voltage and change the batteries if they are less than 2 4v e f the screen appears to be frozen wait 10 seconds and then reattempt The A3 periodically handles critical tasks and could take up to 10 If an SMT I2 isn t available to facilitate a wireless data download to BiG data can be collected using the onboard USB port Connect the SMT A3 mini USB port to a computer running the Building Intelligence Gateway software The A3 serial number should show up under the Devices tab If there are readings the data will automatically be transferred into the BiG database Configuration settings can be changed by selecting Device ID under the devices tab Do not change settings here if you are unsure what you are doing The A3 will continue to take readings and transmit to seconds to timeout or complete a task e Reset the unit Make sure A2 is not plugged into USB Hold down Menu and Select for 5 seconds Internal RH T readings are not accurate e RH sensor may have been wet and requires recalibration The unit will need to be sent back to SMT for recalibration e Ensure the RH sensor has good venting out the front face plate e Unplug the A3 from USB as the unit heats up
12. while charging A3 does not appear in BiG BiG when powered over USB e Ensure the 2 and A3 are on the same PAN The PAN on the 2 can be queried by double clicking on the serial number under Devices in BiG Select Get next to PAN To query the PAN on the A3 select Info from the main screen on the unit Data collection and analysis Data is collected by the Building Intelligence Gateway BiG and forwarded to the Building Analytics server database for further analysis and user access See the BiG and Analytics user manuals for sensor Ordering Information configuration and data analysis capabilities g A3 8 Resistance Channels with RH T A3 J22 H00 8R A3 4 Resistance 4 Voltage Channels with RH T A3 J22 H00 4R4V A3 4 Resistance 4 Voltage Channels with RH T and CO2 A3 J22 H00 4R3V CO2 A3 4 Resistance Channel with RH T A3 J22 HO0 4R P Differential Pressure Faceplate Installation After the inputs on the A3 are confirmed and data is being transmitted slide the faceplate on by hooking it to the top and then pushing firmly on the bottom r A3 4 Resistance Channel with RH T A3 J22 H00 4R P CO2 Pressure and CO2 Industrial NEMA IP66 Hammond Weatherproof Case with 2 cinch connectors and desiccant A3 1554N2 Double gang low voltage bracket A3 LV2 Double gang plastic junction box A3 2FWSW SMT Research Ltd 200 75 W Broadway BC V5Y 1P1 Tel 204 480 8579 Fax 204 480 8579 Website www smtre
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