Low Cost Differential Pressure Sensor AT3351 With Capacitive Signal

Pressure range

Pressure range

10kPa, 35kPa, 70kPa, 100kPa,250kPa, 

400kPa,600kPa, 1MPa, 1.6MPa, 2.5MPa, 4MPa,6MPa,   

10MPa (bar and psi unit available)

Pressure reference

Gauge pressure | Absolute pressure |  
Sealed gauge pressure

Overpressure

300%F.S.( ≤70Kpa) | 200%F.S.(≤10Mpa)  

Output signal

Zero output

±2mV

Span output

100mV(Typical) | 60mV(<100kPa))

Specification

Accuracy ( linearity, repeatability and 

hysteresis)

±0.25%F.S. (Typical)

Excitation

1.5mA (Typical)

Compensated temp.

-10-70°C(Typical) | 0-60°C(<100kPa))

Operating temp.

-40-125°C

Storage temp.

-40-125°C

Zero temp. coefficient

0.02%F.S./°C(≥100kPa) |  0.04%F.S./°C(<100kPa)

Span temp. coefficient

0.02%F.S./°C(≥100kPa) |  0.04%F.S./°C(<100kPa)

Insulation resistance

>200Mohm/250VDC

Bridge resistance

Min.

Max.

Unit

2600

5500

ohm

Long term stability

≤0.2%F.S.S/year

Vibration

20g(20--5000HZ)

Shock

100g, 10ms

Response time

≤1ms(10% to 90%F.S.)

Lifetime

10*10 6 (cycles)

Oil filling

Silicon Oil (Typical)
Olive oil available for sanitary application

O-ring

NBR, Viton

Housing and diaphragm                                   

Stainless steel 316L

Wire connection

4 wire (typical) | 5 wire (available)
39×φ0.015, Silicon shielded, 200°C bearing

Weight

25g(approx)