Page 449 - 2019종합카다로그_Pressure gauge

Technical Data

Input
Technology Piezo resistive effect sensor
0 ~ 30 psi to 0 ~ 5000 psi relative pressure
Pressure ranges
-14.5 ~ 30 psi to -14.5 ~ 5000 psi absolute pressure
Pressure reference Gauge, Absolute pressure
Overload 2 x full scale without damage
Output
Output signal 4~20 mA DC 2-wire loop powered technique
Full scale output signal 20 mA ± 0.025 %
Zero measured output 4 mA ± 0.025 %
Electrical Specifications
Excitation voltage 12~40 V DC (Ex ia power supply limit : 24 V)
Power cunsumption 0.48 W at DC 24 Volt, 20 mA
Load resistance max@24 V 500 Ω at 24 V
Influence of excitation 0.01 % FSO / V
Power ripple ≤ 500 mV P-P
Protection Against reverse polarity and overvoltage
Shock resistance 150 m/s² half sign wave/18 times
Vibration 100 ~ 500 Hz, 19.2 m/s²
Response time (10~90 %) ≤ 20 milliseconds
High voltage strength 500 DC V (Wiring versus case)
Electro-magnetic immunity (EMI) IEC 61000-4-2 (ESD) : Test level 4 (8 kV)
IEC 61000-4-3 (Field) : Test level 3 (10 V/m)
IEC 61000-4-4 (Burst) : Test level X
RFI per IEC 61000-4
IEC 61000-4-5 (Surge) : Test level 2
IEC 61000-4-6 (Conducted RFI) : Test level 3 (10 V)
Performance Specifications
Accuracy ± 0.25 % FSO typical
Non-linearity ± 0.1 % FSO typical
Repeatability ± 0.1 % FSO typical
Pressure hysteresis ± 0.05 % FSO typical
Long term stability ≤ ± 0.1 % FSO over 1 year
Reference temperature 25 ºC
Operating temperature -20 ~ 80 ºC
Compensated temperature -20 ~ 60 ºC
Physical Specifications
PT851, PT852, PT853 : 22 x 22 x 83 (W x L x H)
Demension
PT850 : 31.8 x 31.8 x 102.4 (W x L x H)
PT1/4" , PT3/8" , PT1/2" male thread
NPT1/4" , NPT3/8" , NPT1/2" male thread
PF1/4" , PF3/8" , PF1/2" male thread
Process connection
VCR Swivel male or female face seal fitting
Tube welding, IGS
Other connections available on request
Process media Gases and liquid compatible with stainless steel 316
Piezoresistive effect type : Stainless steel 630, Hastelloy C
Materials wetted by process
Housing : Stainless steel 304
Enclosure rating IP65 , depending on the electrical wiring
Explosion protection and parameter Ex ia IIC T4 (Ui=28 V, li=93 mA, Pi=650 mW, Ci=41.4 nF, Li=48.07 uH)
Influence of mounting position Not critical

PT850_03