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Pressure transducer with amp. PA-838

PRESSURE TRANSDUCERS WITH AMP. PA-838

  • High corrosion resistance by double diaphragm structure
  • Built-in amplifier circuit
  • Incorporating temperature compensation function (0 ~ 50 °C)
  • Current output mode
  • Available with a ※ VCR® fitting

Standard specifications

  • Unless otherwise specified, the specs are defined at an ambient temperature of 25±5 °C, excitation voltage of 24 V DC and load resistance of 250 Ω.
Operating temp. range −20 ~ 70°C
Compensated temp. range 0 ~ 50°C
Operating humidity 35 ~ 85%RH(No condensation)
Storage temp. − 20 ~ 70°C(Atmospheric pressure, humidity 65 %RH maximum)
Pressure medium Corrosive gases/liquids compatible with SUS 316L ※1
Insulation resistance 100 (500 V DC)MΩ min.
Dielectric strength 500 V AC, 60 s(Leakage current 1 mA maximum)
Sealed liquid Silicone oil
Pressure port G 1/8 (PF 1/8)、R 1/4 (PT 1/4)、1/4 VCR® ※2
Net weight Approx. 140g
Supply voltage 24 ± 10 %V DC
Ripple content 10 % (P-P)maximum
※1 In case of VCR type, corrosive gases/liquids compatible with SUS 316L and SUS 316.
※2 An “O” ring provided for G1/8 type. (Positive pressure : P15)

Analog output

  • Unless otherwise specified, the specs are defined at an ambient temperature of 25±5 °C, excitation voltage of 24 V DC and load resistance of 250 Ω.
Rated pressure range501G102G103G
Output current 4 ~ 20mA
Zero current 4 ± 0.2mA (at 25 °C)
Span current 16 ± 0.2mA (at 25 °C)
Load resistance 0 ~ 500 Ω
Linearity/Hysteresis ± 0.5%F.S.
Thermal error
 (Reference temp.: 25 °C)
ZERO:± 0.05/± 0.1%F.S./°C
SPAN:± 0.05/± 0.1%F.S./°C
Response Approx. 2ms
Gravitational effect
(From vertical position to horizontal position)
Approx. 0.5%F.S.max. Approx. 0.3%F.S.max. Approx. 0.05%F.S.max.

Model Number Designation

PA-838-102A-05 

Series name

Rated pressure range

501:0 ~ 49.0 kPa {0 ~ 0.5 kgf/cm2}
102:0 ~ 98.1 kPa {0 ~ 1 kgf/cm2}
103:0 ~ 981 kPa {0 ~ 10 kgf/cm2}

Pressure reference

G:Gauge

Thermal error/Fitting

05:± 0.05 % F.S./°C, G 1/8
R2:± 0.05 % F.S./°C, R 1/4
VCR:± 0.05 % F.S./°C, VCR
10:± 0.1 % F.S./°C, G 1/8

※VCR® is a registered trade name of Cajon Co. CAJON® is a registered trade name of Swagelok Co.
Note: For handling of VCR fittings, please contact a service center of Swagelok Co.

List of model numbers

Model numberPressure referenceThermal error [% F.S./°C]FittingRated pressure rangekPa {kgf/cm2}Maximum pressurekPa {kgf/cm2}Break-down pressurekPa {kgf/cm2}CAD
PA-838-501G-05 Gauge ± 0.05 G 1/8 49.0 {0.5} 98.1 {1} 147 {1.5}
PA-838-501G-R2 Gauge ± 0.05 R 1/4 49.0 {0.5} 98.1 {1} 147 {1.5}
PA-838-501G-VCR Gauge ± 0.05 VCR 49.0 {0.5} 98.1 {1} 147 {1.5}
PA-838-501G-10 Gauge ± 0.10 G 1/8 49.0 {0.5} 98.1 {1} 147 {1.5}
PA-838-102G-05 Gauge ± 0.05 G 1/8 98.1 {1} 196 {2} 294 {3}
PA-838-102G-R2 Gauge ± 0.05 R 1/4 98.1 {1} 196 {2} 294 {3}
PA-838-102G-VCR Gauge ± 0.05 VCR 98.1 {1} 196 {2} 294 {3}
PA-838-102G-10 Gauge ± 0.05 G 1/8 98.1 {1} 196 {2} 294 {3}
PA-838-103G-05 Gauge ± 0.05 G 1/8 981 {10} 1961 {20} 2942 {30}
PA-838-103G-R2 Gauge ± 0.05 R 1/4 981 {10} 1961 {20} 2942 {30}
PA-838-103G-VCR Gauge ± 0.05 VCR 981 {10} 1961 {20} 2942 {30}
PA-838-103G-10 Gauge ± 0.10 G 1/8 981 {10} 1961 {20} 2942 {30}
※VCR® is a registered trade name of Cajon Co. CAJON® is a registered trade name of Swagelok Co.
Note: For handling of VCR fittings, please contact a service center of Swagelok Co.

Environment Characteristics

Test itemTest conditions (At 25 ± 5 °C)Permissible change
Vibration 10 ~ 500 Hz, 1.5 mm maximum/98.1 m/s2
3 directions for 2 hours each
Zero current, Span current:
± 1 %F.S. maximum each
Shock 490 m/s2 3 directions for 3 times each
Pressure cycling 0 ~ Rated pressure/Rated pressure range 106 cycles
Moisture resistance 40 °C, 90 ~ 95 %RH, 240 hrs.

Internal circuit diagram

Recommended external schematics

Outline Dimensions

 

●The above contents and descriptions are subject to change without notice. 

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