• UC2 Capacitive Pressure Sensor
  • UC2 Capacitive Pressure Sensor
  • UC2 Capacitive Pressure Sensor
  • UC2 Capacitive Pressure Sensor

TYPE:UC2

NAME:UC2 Capacitive Pressure Sensor (0.1~70 bar, 0.2~70 bar)

The Ceracore UC2 capacitive pressure sensor is Al2O3 (99.9 %), a highly resistant ceramic material for many aggressive gases and liquids.

UC2 Capacitive Pressure Sensor Measuring principle

The Ceracore UC2 capacitive pressure sensor is Al2O3 (99.9 %), a highly resistant ceramic material for many aggressive gases and liquids. Cylindrical ceramic components (diaphragm, meter body) are bonded to form a high- strength, hermetically sealed pressure sensor element. With absolute pressure sensors, the vacuum of 3.0 x 10-6 mbar created in the production process between the diaphragm and the meter body remains permanently. This permits pressure measurements related to the vacuum. With gauge pressure sensors, the back of the diaphragm is vented, i.e. this sensor measures the gauge pressure relative to the atmospheric pressure. Electrically, the sensor element represents a plate capacitor whose capacitance change is the dimension for the pressure change. The capacitive measuring process satisfies the highest requirements concerning resolution and reproducibility. Together with the hysteresis-free behavior of the material Al2O3 , it is the basis for the excellent specifications of the sensor. In addition, the Ceracore UC2 capacitive pressure transducer is a dry measuring cell, i.e. there is no separating diaphragm or filling fluid which could influence the measurement. A further advantage of the capacitive ceramic sensor is its high overload resistance. After removal of the overload, it returns to the initial position without any damage or hysteresis.

UC2 Capacitive Pressure Transducer Features

UC2 Capacitive Pressure Sensor

Dry capacitive ceramic sensor
Basic ceramic material (99.9 % Al2O3)

* Extremely high overload limit
* Absolutely resistant to wear
* High temperature stability
* High long-term stability
* No hysteresis
* Corrosion-resistant

Active electronics
* Sensor-specific signal conditioning
* High-accuracy pressure measurement with temperature stability

Application

* The pressure sensor Ceracore UCS2/UC2 delivers a pressure-proportional voltage signal
* We offer support for the integration of the Ceracore UCS2/UC2 into the customized application

Dimensions(mm)

UC2 Capacitive Pressure Sensor

Input Measured variable Choice of gauge pressure or absolute pressure
Measuring range Gauge pressure measurement 0.1 to 70 bar, absolute pressure measurement 0.2 to 70 bar
Output(Values dependent on installation ) Zero point 0.50 ± 0.05 ; applies to the respective lower range-value of the measuring range
Span 4.00 ± 0.05
Characteristic curve linear; max. non-linearity δ 0.2 % of span
Load ɛ10 kʌ or δ300 pF (with signal deviation <0.1 % of span)
Rise time approx. 1 ms
Switch-on time max. 10 ms
Long-term stability max. 0.1 % of span per year
Output signal 0.5 to 4.5
Power supply Supply voltage 5 DC stabilized, minimum 4.5 / maximum 5.5
Influence of supply voltage: no influence on linearity / proportional on lower range-value / proportional on span, no influence on temperature compensation
Current consumption Maximum 2 mA at a supply voltage of 5
Operating conditions:Installation Orientation Arbitrary. Operate the sensor system with the diaphragm pointing downwards. Otherwise observe the position dependent zero point shift for small pressure ranges (δ 400 mbar).
Weight approx. 17 to 23 g, depending on measuring range
Operating conditions: Environment Ambient temperature range – 40 °C to +125 °C (also applies to storage temperature)
Degree of protection IP 00 as per DIN 60529 (IEC529); Climate class 3K3 DIN EN 60721-3-3
Operating conditions: Process Reference operating conditions Gases and liquids
Media Diaphragm: aluminum oxide ceramic Al2O3 (99.9 %)
Material – 40 °C to +125 °C, compensation temperature -20 °C to +80 °C
Thermal change Thermal change of the lower range-value in the compensation temperature range: max. ±0.75 %  of span, with extended specification ±1 % of span
Thermal change of output span in the compensation temperature range: max. ±0.5% of span. With  Measuring ranges d0.4 bar ±0.8 % of span, with extended specification ±1% of span
Limiting medium pressure range Overload Overload limit:see”Ordering information” section, Overload influence:negligible
Vacuum resistance UCS2 with nominal value 400 mbar up to 70 bar: 0 mbar abs
UCS2 with nominal value 200 mbar: 500 mbar abs (Version M in Ordering information)
UCS2 with nominal value 100 mbar: 700 mbar abs (Version L in Ordering information)
Sensor range; Overload (other measuring ranges and special versions on request)
A 0…100 mbar / 10 kPa/1.5 psi absolute; 4 bar/400 kPa/60 psi
B 0 to 200 mbar /20 kPa/3 psi absolute; 6 bar/600 kPa/ 90 psi
C 0 to 400 mbar /40 kPa/6 psi absolute; 6 bar/600 kPa/ 90 psi
D 0 to 1 bar /100 kPa/15 psi absolute; 10 bar/1 MPa/ 150 psi
E 0 to 2 bar /200 kPa/30 psi absolute; 18 bar/1.8 MPa/ 270 psi
F 0 to 4 bar /400 kPa/60 psi absolute; 25 bar/2.5 MPa/ 375 psi
G 0 to 10 bar /1 MPa/150 psi absolute; 40 bar/4 MPa/ 600 psi
H 0 to 20 bar /2 MPa/300 psi absolute; 40 bar/4 MPa/ 600 psi
I 0 to 40 bar /4 MPa/600 psi absolute; 60 bar/6 MPa/ 900 psi
J 0 to 70 bar /7 MPa/1050 psi absolute; 105 bar/10.5 MPa/ 1575 psi
L 0 to 100 mbar /10 kPa/1.5 psi relative; 4 bar/400 kPa/ 60 psi
M 0 to 200 mbar /20 kPa/3 psi relative; 6 bar/600 kPa/ 90 psi
N 0 to 400 mbar /40 kPa/6 psi relative; 6 bar/600 kPa/ 90 psi
O 0 to 1 bar /100 kPa/15 psi relative; 10 bar/1 MPa/ 150 psi
P  0 to 2 bar /200 kPa/30 psi relative; 18 bar/1.8 MPa/ 270 psi
R 0 to 4 bar /400 kPa/60 psi relative; 25 bar/5 MPa/ 375 psi
S 0 to 10 bar /1 MPa/150 psi relative; 40 bar/4 MPa/ 600 psi
T 0 to 20 bar /2 MPa/300 psi relative; 40 bar/4 MPa/ 600 psi
U 0 to 40 bar /4 MPa/600 psi relative; 60 bar/6 MPa/ 900 psi
V 0 to 70 bar /7 MPa/1050 psi relative; 105 bar/10.5 MPa/ 1575 psi

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