sensing element differential fdm data sheet 1 features differential pressure surface mount package ordering information weight (grams) 1.2 measurable pressure range(kpa) part number -13.79 to 13.79 FDM-02PDSR -34.47 to 34.47 fdm-05pdsr -48.26 to 48.26 fdm-07pdsr -103.4 to 103.4 fdm-15pdsr -206.8 to 206.8 fdm-30pdsr -344.7 to 344.7 fdm-50pdsr -482.6 to 482.6 fdm-70pdsr -827.4 to 827.4 fdm-120pdsr specifications model 02pd 05pd 07pd 15pd 30pd 50pd 70pd 120pd unit recommended operating conditions pressure type differential pressure - rated pressure 13.79 34.47 48.26 103.4 206. 8 344.7 482.6 827.4 kpa measurable pressure range -13.79 to 13.79 -34.47 to 34.47 -48.26 to 48.26 -103.4 to 103.4 -206.8 to 206.8 -344.7 to 344.7 -482.6 to 482.6 -827.4 to 827.4 kpa temperature range 0 to 50 deg.c pressure media non-corrosive gases only (no liquid) - excitation current (constant) 1.5 madc absolute maximum rating maximum differential pressure **1 port1 maximum load pressure port2 maximum load pressure twice of rated pressure 1.5 times of rating pressure - maximum excitation current 3.0 madc operating temperature -20 to 100 deg.c storage temperature -40 to 120 deg.c operating humidity 30 to 80 (non dew condition) %rh electric characteristics (drive current 1.5m a constant ,ambient temperature ta=25deg.c) output span voltage **2 60 to 140 (at 0kpa to rated pressure) mv offset voltage **2 +/-20 (at 0kpa) mv bridge resistance 4000 to 6000 ? response time 2 (for the reference) msec. accuracy tso* +/-5 tcs* 2.5 %fs/0- 50deg.c linearity +/-0.5 +/-0.3 +/-0.5 +/-0.6 %fs pressure hysteresis +/-0.4 +/-0.2 +/-0.4 %fs terminal leads configuration surface mount package model rated pressure (psi) pressure type d differential pressure *tso : temperature sensitivit y of offset voltage(temperat ure range from 0-50 deg.c) *tcs : temperature coefficient of output span voltage(temperature range from 0-50 deg.c) **1 port1 pressure > port2 pressure , port2 pressure : reference pressure **2 output refers to pr essure at pressure port2. rohs compliance
sensing element differential fdm data sheet 2 pressure(kpa) =port1 pressure - port2 pressure p1= 0 kpa t1= 0 deg.c p2= 1/2 x p3 (kpa) t2= 25 deg.c p3= reted pressure (kpa) t3= 50 deg.c offset voltage (mv) voff = v(p1,t) voff(0) = v(p1,t1) voff(25) = v(p1,t2) voff(50) = v(p1,t3) output voltage at full scale (mv) vfs = v(p3,t) vfs(0) = v(p3,t1) vfs(25) = v(p3,t2) vfs(50) = v(p3,t3) output span voltage (mv) sv = vfs - voff sv(0) = vfs(0) - voff(0) sv(25) = vfs(25) - voff(25) sv(50) = vfs(50) - voff(50) temperature sensitivity of offset voltage (%fs) tso = {larger one} / sv(25) x 100 larger one = larger absolute value which of {voff(0) - voff(25)} and {voff(50) - voff(25)} temperature coefficient of output span voltage (%fs) tcs = {max[sv(0),sv(25),sv(50)] - min[sv(0),sv(25),sv(50)] } / sv(25) x 100 linearity (%fs) nl = {v(p2,t2) - [voff(25)+vfs(25)]/2 } / sv(25) x 100 pressure hysteresis (%fs) phys = {voff?(25) - voff(25) } / sv(25) x 100 voff?(25) : output voltage against p1 after stressing by p3 pressure.
sensing element differential fdm data sheet 3 outline dimensions connection diagram
sensing element differential fdm data sheet 4 output characteristics note ; please read instruction ?notes? before using the sensor. fujikura reserves the right to c hange specifications without notice. please set zero-calibration function up your products. the offset voltage may be shifted some mechanical stress such as mounting, installation and etc. over longtime using. output span voltage rated pressure output voltage mv pressure kpa 0kpa offset voltage -rated pressure atomospheric pressure pressure(kpa) =port1 pressure - port2 pressure (port1 pressure > port2 pressure) output refers to pressu re at pressure port2.
sensing element differential fdm data sheet 5 reflow soldering process recommendation profile a: rump up rate 1 or 2 deg.c/sec. b: pre-heating 150 to 180 deg.c,within 60 to120sec. c: rump up rate 1 to 2 deg.c/sec. d: heating max.230 deg.c,max.10sec. 210 deg.c,within 30sec. e: rump down rate 1 or 2 deg.c/sec. note ; 1 ) temperatur e means surface temperatur e of the sensor package. 2 ) reflow process max. 2 times. 3 ) do not wash the sensor. 4 ) do not put the solder and fl ux on the sensor package. if you have any questions regarding technical issues or specifications, please contact us. fujikura ltd. sensor department 5-1 kiba 1-chome, koto-ku, tokyo 135-8512, japan phone +81-(0)3-5606-1072 e-mail : sensor@fujikura.co.jp package surface temperature (degree c) 210 150 room te m p . a b c d e 230 time
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