PRESSURE TRANSDUCERS WITH AMP.
PA-838
INTERNAL STRUCTURE
PA-838 (G 1/8)
1
5
3
4
2
Part name
Material
SUS 316L
Fluoro-rubber
Aluminum
Ceraminc
Silicone oil
■
FEATURES
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
1
2
3
4
5
Fitting
“O” ring
(P15)
Housing
Compensation resistor board
Sealed liquid
■
MODEL NUMBER DESIGNATION
PA-838-102G-05
Series name
Rated pressure range
501：0 ~ 49.0 kPa {0 ~ 0.5 kgf/cm
2
}
102：0 ~ 98.1 kPa {0 ~ 1 kgf/cm
2
}
103：0 ~ 981 kPa {0 ~ 10 kgf/cm
2
}
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
Pressure reference
G：Gauge
■
LIST OF MODEL NUMBERS
Pressure reference
Output
[% F
.S./°C]
Thermal error
kPa {kgf/cm
2
}
Pated pressure range
Fitting : G 1/8
Current output
Fitting : R 1/4
Fitting : VCR
Gauge
0 ~ 49.0
{0 ~ 0.5}
PA-838-501G-05
PA-838-501G-R2
PA-838-501G-VCR
PA-838-501G-10
0 ~ 98.1
{0 ~ 1}
PA-838-102G-05
PA-838-102G-R2
PA-838-102G-VCR
PA-838-102G-10
0 ~ 981
{0 ~ 10}
PA-838-103G-05
PA-838-103G-R2
PA-838-103G-VCR
PA-838-103G-10
±
0.05
±
0.10
Fitting : G 1/8
※
Verify the above model numbers when placing orders.
※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.
PRESSURE TRANSDUCERS WITH AMP.
PA-838
■
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.
Item
Pressure reference
Rated pressure range
Maximum pressure
Break-down pressure
Model number
PA-838
501G
102G
Gauge
103G
kPa {kgf/cm
2
}
kPa {kgf/cm
2
}
kPa {kgf/cm
2
}
°C
°C
%RH
°C
49.0 {0.5}
98.1 {1}
147 {1.5}
98.1 {1}
196 {2}
294 {3}
−
20 ~ 70
0 ~ 50
35 ~ 85
（
No condensation
）
981 {10}
1961 {20}
2942 {30}
General specifications
Operating temp. range
Compensated temp. range
Operating humidity
Storage temp.
Pressure medium
Insulation resistance
Dielectric strength
Sealed liquid
Pressure port
Net weight
−
20 ~ 70（Atmospheric pressure, humidity 65 %RH maximum）
Corrosive gases/liquids compatible with SUS 316L ※1
MΩ minimum
100 (500 V DC)
500 V AC, 60 s
（
Leakage current 1 mA maximum
）
Silicone oil
G 1/8 (PF 1/8), R1/4 (PT 1/4), 1/4 VCR
®
※2
g
V DC
maximum
g
mA
mA
mA
Approx. 140
24
±
10 %
10 % (P-P)
4 ~ 20
4
±
0.2 (at 25 °C)
16
±
0.2 (at 25 °C)
0 ~ 500
Ω
±
0.5
±
0.05/± 0.1
±
0.05/± 0.1
Approx. 2
Approx. 0.5
Approx. 0.3
Approx. 0.05
Power
Analog output
Supply voltage
Ripple content
Output current
Zero current
Span current
Load resistance
Linearity/Hysteresis
Thermal error
0 ~ 50 °C (Reference temp.: 25 °C)
Response
Gravitational effect (From vertical position to horizontal position)
%F.S.
ZERO %F.S./°C
SPAN %F.S./°C
ms
%F.S.
max.
※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)
■
ENVIRONMENTAL CHARACTERISTICS
Test item
Vibration
Shock
Pressure cycling
Moisture resistance
Test conditions (At 25
±
5 °C)
10 ~ 500 Hz, 1.5 mm maximum/98.1 m/s
2
,
3 directions for 2 hours each
490 m/s
2
, 3 directions for 3 times each
0 ~ Rated pressure, 10
6
cycles
40 °C, 90 ~ 95 %RH, 240 hrs.
Zero current, Span current:
±
1 %F.S. maximum each
Permissible change
PA-838
PRESSURE TRANSDUCERS WITH AMP.
■
OUTLINE DIMENSIONS
G1/8 type
22.5
22
12
8
55 ± 1
SN plate label
Unless otherwise specified, tolerance :
±
0.5 (Unit: mm)
(10)
Part No. label
(
φ
3.8)
AWG26 ULNo.2844
4 – core shielded cable
L = 1500 ± 50
PA-838
Wire color
Red
White
Shield
Green
Black
Connection
Power
B
Output
Fitting
N.C.
N.C.
8
Cable bush (ESS-1)
“O” ring groove depth 1.8
P 15
M 5 depth 6
Pressure port
G 1/8 (PF 1/8)
(SUS 316L)
Housing (Aluminum with alumite finish)
R1/4 type
Pressure port
M5 depth 6
R 1/4 (PT 1/4)
(SUS 316L)
SN plate label
Part No. label
(
φ
3.8)
AWG26 ULNo.2844
4 – core shielded cable
L = 1500 ± 50
(25.4)
8
Cable bush (ESS-1)
0
22
–0.3
13.5
23.5
8
Housing (Aluminum with alumite finish)
56 ± 1
(10)
(
φ
3.8)
VCR type
1/4 VCR
(SUS 316)
SN plate label
Part No. label
AWG26 ULNo.2844
4 – core shielded cable
L = 1500 ± 50
(21.9)
8
Cable bush (ESS-1)
(16)
0
19
–0.3
8.5
Housing (Aluminum with alumite finish)
(26.5)
59 ± 1
(10)
■
INTERNAL ELECTRICAL SCHEMATICS
■
RECOMMENDED EXTERNAL SCHEMATICS
φ
30
φ
30
φ
30
Pressure
Sensor
Main circuit
Power
B
Output
Shield
Pressure
Sensor
Main circuit
V
Power
B
24V DC
RL : 250
Ω
Output
Shield
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