barometric_pressure
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1. Texas Electronics shall not be obligated how ever to repair or replace equipment which has been repaired by others abused improperly installed altered or otherwise misused or damaged in any way TEI will not be responsible for any dismantling re assembly or reinstallation charges This warranty is in lieu of all other warranties expressed or implied TEI shall not be liable for any special indirect incidental or consequential damages claimed in connection with any rescission of this agreement by purchaser2. d electronics provide a regulated voltage to the solid state sensor and amplification for the signal output Ihe units range of 26 to 32 of mercury or 878 to 1080 mbar allows it to be used at elevations up to 1800 feet 548 64 meters above sea level The unit is temperature compensated from 18 to 50 C If elevations above 1800 feet 548 64 meters are required contact the factory for higher elevation calibration SPECIFICATIONS TB 2012M TB 2012M A Calibration Range 26 to 32 878 mb to 1080 mb 26 to 32 878 mb to 1080 mb Supply Voltage 12 to 15 VDC 12 to 15 VDC Current Draw lt 15 mA lt 15 mA Accuracy 1 3 mb 1 3 mb Operating Temperature Range 40 to 50 C 40 to 50 C Calibrated Temperature Range 18 to 50 C 18 to 50 C Output 0 1 VDC 4 20 mA Weight 2 lbs 907 kg w 60 of cable 2 lbs 907 kg w 60 of cable Dimensions Hx5 Wx D Hx5 Wx D 15 24 cm x 12 7 cm x 7 62 cm 15 24 cm x 12 7 cm x 7 62 cm Warranty 3 years 3 years FEATURES amp BENEFITS e Interfaces to virtually all data acquisition systems Can be used up to 1800 ft elevation without factory modification e Over 1800 ft elevation applications available e Easy installation and maintenance e Over 5 years in production e Weatherproof NEMA nclosure for superior protection outdoors e Wide range of 26 to 32 Hg or 878 to 1080 mbar INSTALLATION amp MAINTENANCE Select a site where the instrument will not b
3. e subject to rapid fluctuations of temperature or to jarring and continuous vibration Avoid exposing the instrument to direct sunlight or radiant heaters and to direct drafts such as open windows and doors A mounting bracket with hardware is attached to the Nema enclo sure of the sensor ORDERING INFORMATION Model Description TB 2012M Barometric Pressure Sensor TB 2012M A Barometric Pressure Sensor 4 20 mA Optional Parts Accessories High Elevation Applications of higher than 1800 ft 548 64 meters above sea level require factory modification TB 2012M ALTITUDE SETTING INSTRUCTIONS To set barometer to your elevation follow the instructions listed below Output 0 1V Range 26 to 32 1666V Inch 001666V 01 Inch Obtain local barometric pressure from NOAA NWS airport radio TV station or from any facility that would have the most accurate information closest to your installation Digital or analog indicators remove the four cover screws from the TB 2012M and adjust the null pot R15 until your output agrees with the reference obtained You may want to do this more than once particularly if the weather is un settled at the time By using the chart below and the following conversion it is very easy to set up Example If the pressure reading that you obtained is 29 13 From the chart below Choose 29 which is 500 V Then multiply 13 x 00166 V 0216 V 5 V 0216 V 52160 V should be t
4. he proper output Set null pot R15 until that voltage output is obtained 26 00 V 27 166V 28 333 V 29 500 V 30 666V 31 833V 32 1 000V Replace cover and secure evenly System should not require further calibration or setup WIRING DIAGRAM TE 2 i2 HM FRROPIETRIC PRESSURE SENSOR pubs e BLACK COMMON 1 WHITE SIGNAL TYPICAL RANGE 26 to 32 B78mb to 1080ml lexas Electronics Inc The De Stormer n loot AlugbEumaerm Sine T3 OUTPUT 0 1 VOC me B e amp leM BAROMETRIC PRESSURE WIRING DIAGRAM WIRING DIAGRAM TE 4202 4 20 mA AMPLIFIER TR ediehl BAROMETRIC PRESSURE SENSOR 8 3 4 GJ DLE BI LJ RED ley DC BLACKI COMMON C d LN TYPICAL RANGE 26 to 32 B78mb to 1080ml lexas Electronics Inc ra Gwe Stoner n anmha Augburnuarbbem Sinca TS OUTPUT 4 to cl mA TB ellehMA BAROMETRIC PRESSURE Warranty Texas Electronics Inc hereafter TEI warrants the equipment manufactured by it to be free from defects in material and workmanship Upon return transportation charges prepaid to TEL within three 3 years of orig inal shipment of sensors and one 1 year of original shipment of electronics recorders and indicators TEI will repair or replace at its option any equipment which it determines to contain defective material or workman ship and will return said equipment to purchaser E O B TEI
5. ii Texas Electronics TB 2012M TB 2012M A Barometric Pressure Sensor User s Manual Texas Electronics Inc Dallas TX 75235 Fax 214 631 4218 5529 Redfield Street Tel 214 631 2490 Wwww texaselectronics com G Q O MICRO SWITCH USA Texas Electronics Inc u1 7 P1 P2 S 5529 Redfield St Dallas Tx 75235 P C99 Model TB 2012M Barometer d c1 c ohm U2 D3 5 R11e e t e a R3 ay R f TB 2012M and adjust TB D29 RR c 5 R2 emove cover of TB and adjus __ __ ADDO e wet ple ort for local pressure R21 C98 amp amp Hj e9R18 R22 __ e __ Refer to Pressure vs Voltage Current dnm Te Bn Hs ral 5 e e i Table under the Barometer section of Dis me RIGG __ e Os me o Q Q C7 gt O28 amp gt lt Kr m R17 q D c6 c 6 Q C2 SPAN ELECTRIC BAROMETER ie D MODEL NO TB 2012M U3 pis SIN 102795 NULL Model TB 2012M Barometric Pressure Sensor Shown with cover removed DESCRIPTION he Texas Electronics Inc TB 2012M Barometric Pressure Sensor uses an active solid state device to sense baro metric pressure Self containe
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