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Athena Control
Vibration Sensors

CA SERIES

SHINKAWA Electric

Compact piezoelectric acceleration transducers with wide frequency response, designed for continuous vibration monitoring of motors, pumps, fans and gearboxes.

Sensor TypePiezoelectric acceleration (IEPE)
Sensitivity100 mV/9.8 m/s²
Frequency Response1 Hz to 10,000 Hz (±3 dB)
Measurement Range490 m/s² pk
Protection RatingIP67
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CA Series

Product Details

OVERVIEW

CA series are built-in-amplifier type (IEPE) piezoelectric acceleration transducers designed for continuous vibration monitoring of rotating machines such as electric motors, pumps, fans and gearboxes.

The transducers can be used for machine condition monitoring required by standards such as ISO 10816, ISO 20816 and API 670.

Multiple models are available: CA-72 (connector and integral cable types), CA-101 (compact with integral cable), CA-302 (compact with integral cable and wide explosion-proof certifications), and CA-L02 (low-frequency model).

CA Series

Compact piezoelectric acceleration transducers with wide frequency response, designed for continuous vibration monitoring of motors, pumps, fans and gearboxes.

Built-in-amplifier type (IEPE)

Integrated electronics provide a low-impedance output, simplifying cabling and improving noise immunity.

Small size and reasonable cost

Compact stainless steel design enables easy installation in tight spaces while keeping system costs low.

API 670 compliant

Meets American Petroleum Institute standard 670 requirements for machinery protection systems.

Intrinsically safe

Certified for hazardous area use: TIIS, ATEX (Ex ia IIC T4 Ga), NEPSI, and KTL.

Marine type approval

Holds type approval certificate for marine applications.

IP67 dust tight and waterproof

Hermetically sealed stainless steel case rated IP67 for harsh industrial environments.

CE and UKCA compliant

Meets European CE and UK UKCA regulatory requirements.

SPECIFICATIONS

CA-72 PERFORMANCE

11 SPECS
Sensitivity
100 mV/9.8 m/s² (100 mV/g) ±5% at 100 Hz, 25°C
Acceleration Range
490 m/s² (50g) pk
Vibration Limit
4,900 m/s² (500g) pk
Shock Limit
49,000 m/s² (5,000g) pk
Amplitude Nonlinearity
1.0%
Natural Frequency
26 kHz
Frequency Response
3–5,000 Hz ±5%, 2–7,000 Hz ±10%, 1–15,000 Hz ±3 dB
Transverse Sensitivity
Max 5%
Output Impedance
100 Ω typical
Weight (CA-721)
Approx. 120 g
Weight (CA-722)
Approx. 230 g (including cable)

CA-302 PERFORMANCE

10 SPECS
Sensitivity
100 mV/9.8 m/s² (100 mV/g) ±5% at 100 Hz, 25°C
Acceleration Range
490 m/s² (50g) pk
Vibration Limit
4,900 m/s² (500g) pk
Shock Limit
9,800 m/s² (1,000g) pk
Max Shock Energy
4 J (intrinsically safe)
Natural Frequency
30 kHz
Frequency Response
2–5,000 Hz ±10%, 1–10,000 Hz ±3 dB
Transverse Sensitivity
Max 5%
Output Impedance
100 Ω typical
Weight
Approx. 90 g

CA-101 PERFORMANCE

8 SPECS
Sensitivity
100 mV/9.8 m/s² (100 mV/g) ±15% at 80 Hz, 25°C
Acceleration Range
392 m/s² (40g) pk
Shock Limit
9,800 m/s² (1,000g) pk
Natural Frequency
18 kHz typ.
Frequency Response
10–3,000 Hz ±3 dB
Transverse Sensitivity
Max 10%
Output Impedance
Less than 200 Ω
Weight
Approx. 120 g

ELECTRICAL

3 SPECS
Power Supply (CA-72/302)
18–30 VDC (CA-72), 20–30 VDC (CA-302), 2–10 mA constant current
Power Supply (CA-101)
20–30 VDC, 2–8 mA
Grounding
Case isolated, internally shielded

ENVIRONMENTAL

4 SPECS
Operating Temperature (CA-72/302)
−50 to +120°C
Operating Temperature (CA-101)
−20 to +80°C
Relative Humidity
100% RH
Protection Rating
IP67

PHYSICAL

5 SPECS
Case Material
Stainless steel
Sealing
Hermetic
Mounting
M6 mounting stud
Output Connector (CA-721)
MIL-C-5015 2-pin
Cabling (CA-722/302/101)
2-conductor shielded, approx. 5 m integral cable

EXPLOSION PROTECTION

4 SPECS
TIIS
Ex ia IIB T3 X / Ex ia IIB T4 X / Ex ia IIC T3 X
ATEX
Ex ia IIC T4 Ga
NEPSI
Ex ia IIC T4 Ga
KTL
Ex ia IIC T4

Use Cases

APPLICATIONS

Engineered for demanding environments across multiple industries and operating conditions.

01Motors (rolling bearing)
02Pumps (rolling bearing)
03Gearboxes (rolling bearing)
04Fans
05Compressors
06Turbines

DOCUMENTS

CA/CV Series Product Catalog

catalog

Coming soon

CA-72 Acceleration Transducer Specifications

datasheet

Coming soon

CA-101 Acceleration Transducer Specifications

datasheet

Coming soon

CA-302 Acceleration Transducer Specifications

datasheet

Coming soon

CA-L02 Acceleration Transducer Specifications

datasheet

Coming soon

REQUEST A QUOTE

Contact Athena Control for pricing, availability, and technical support for the CA Series.

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