sensor solutions ///89BSD page 1 09/2015 89BSD digital output specifications ? stainless steel with o-ring seal ? pressure/temperature read-out ? digital output (24-bit ds adc) ? asic calibrated ? absolute, sealed gage ? 9mm diameter the 89BSD is a 9mm diameter small profile, media compatible, piezoresistive silicon pressure sensor packaged in a 316l stainless steel housing. this low power 24-bit ds adc digital output pressure sensor supports an i 2 c interface protocol and is designed for threaded o-ring mounting. a custom asic is used for temperature compensation and offset correction. the sensing package utilizes silicone oil to transfer pressure from the 316l stainless steel diaphragm to the sensing element. a flex cable allows the 89BSD to connect to a smaller connection terminal where size is of primary concern. the 89BSD is designed for high performance, low pressure applications. for a similar sensor with a plastic threaded fitting, refer to the lm pressure transducer
89BSD digital output sensor solutions ///89BSD 09/2015 page 2 features ? threaded/weldable ? i 2 c interface ? low power: <1a ? standby power: <0.15 a ? supply voltage: 1.8 to 3.6vdc applications ? level controls ? tank level measurement ? corrosive fluids and gas measurement systems ? sealed systems ? manifold pressure measurement ? barometric pressure measurement ? dive computers standard ranges range bara bars 0 to 006 ? ? 0 to 012 ? ? 0 to 018 ? ? 0 to 028 ? ? 0 to 030 ? ? intermediate pressure ranges available, contact factory
89BSD digital output sensor solutions ///89BSD 09/2015 page 3 performance specifications supply voltage: 3vdc ambient temperature: 25c (unless otherwise specified) parameters min typ max units notes adc 24 bit input voltage range 1.8 3.6 v 2 supply current see table 1 ma pressure resolution see table 3 %span 3 pressure accuracy 0.3 %span total error band see graph 1 %span conversion time see table 2 ms 3 long term stability 0.2 %span/yr compensated temperature - 20 + 85 c temperature resolution see table 3 c temperature accuracy -2 +2 c operating temperature -40 +85 c storage temperature - 40 +125 c pressure overload 2x rated 4 pressure burst 3x rated 5 interface type i 2 c 6 media, pressure port liquids and gases compatible with 316/316l stainless steel notes 1. coefficients must be read by microcontroller software an d are to be used in a mathematical calculation for convert ing d1 and d2 into compensated pressure and temperature values. for calculation methods and coefficients, see application note app- 01006. 2. output is not ratiometric to supply voltage. 3. oversampling ratio: 256 / 512 / 1024 / 2048 / 4096. se e table 2. 4. 2x or 400psi, whichever is less. the maximum pressure tha t can be applied without changing the transducers perf ormanc e or accuracy. 5. 3x or 600psi, whichever is less. the maximum pressure th at can be applied to a transducer without rupture of either the sensing element or transducer. 6. output protocol is i 2 c only. csb is tied to gnd, setting i 2 c address: 0x77 (1110111)
89BSD digital output sensor solutions ///89BSD 09/2015 page 4 table 1 : supply current characteristics parameters symbol conditions min typ max units supply current (1 sample per second) i dd osr 4096 2048 1024 512 256 12.5 6.3 3.2 1.7 0.9 a peak supply current during conversion 1.4 ma standby supply current @ 25c 0.02 0.14 a table 2 : analog digital converter (adc) parameters symbol conditions min typ max units conversion time t c osr 4096 2048 1024 512 256 7.40 3.72 1.88 0.95 0.48 8.22 4.13 2.08 1.06 0.54 9.04 4.54 2.28 1.17 0.60 ms table 3 : typical resolution osr typical pressure resolution (%span) typical temperature resolution (c) 4096 0.0015 0.002 2048 0.0025 0.003 1024 0.003 0.005 512 0.005 0.008 256 0.008 0.012 graph 1 :
89BSD digital output sensor solutions ///89BSD 09/2015 page 5 performance specifications
89BSD digital output sensor solutions ///89BSD 09/2015 page 6 block diagram
89BSD digital output sensor solutions ///89BSD 09/2015 page 7 recommended wrench dimensions
89BSD digital output sensor solutions ///89BSD 09/2015 page 8 ordering information te.com/sensorsolutions measurement specialties, inc., a te connectivity company. measurement specialties, te connectivity, te connectivity (logo) and ev ery connection counts are trademarks. all other logos, products and/o r company names referred to herein might be trademarks of their respective owners. the information given herein, including drawings, illustrations an d schematics which are intended for illustration purposes only, is believe d to be reliable. however, te connectivity makes no warranties as to its ac curacy or completeness and disclaims any liability in connection w ith its use. te connectivitys obligations shall only be as set forth in te connectivitys standard terms and conditions of sale for this product and in no case will t e connectivity be liable for any incidental, indirect or conseq uential damages arising out of the sale, resale, use or misuse of the product. users of te connectivity products should make their own evaluat ion to determine the suitability of each such product for the specific ap plication. ? 2015 te connectivity ltd. family of companies all rights reserved. north america measurement specialties, inc., a te connectivity company 45738 northport loop west fremont, ca 94538 tel: +1 800 767 1888 fax: +1 510 498 1578 e-mail: pfg.cs.amer@meas-spec.com website: www.meas-spec.com europe measurement specialties (europe), ltd., a te connectivity company 26 rue des dames 78340 les clayes-sous-bois, france tel: +33 (0) 130 79 33 00 fax: +33 (0) 134 81 03 59 sales: pfg.cs.emea@meas-spec.com asia measurement specialties (china), ltd., a te connectivity company no. 26 langshan road shenzhen high-tech park (north) nanshan district, shenzhen, 518057 china tel: +86 755 3330 5088 fax: +86 755 3330 5099 e-mail: pfg.cs.asia@meas-spec.com website: www.meas-spec.com 89BSD - 012ba - a model pressure range type (a = absolute, s = sealed gage) fitting type (see table 4)
|
