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Athena Control
Vibration Sensors

CV SERIES

SHINKAWA Electric

Piezoelectric velocity transducers for continuous casing vibration monitoring of turbines, compressors, pumps and other rotating machinery.

Sensor TypePiezoelectric velocity (IEPE)
Sensitivity3.94 mV/mm/s
Frequency Response2 Hz to 7,000 Hz (±3 dB)
Max Velocity1,270 mm/s pk
Protection RatingIP67
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CV Series

Product Details

OVERVIEW

CV series are built-in-amplifier type (IEPE) velocity transducers designed for continuous condition monitoring of rotating machines such as turbines, compressors and pumps.

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: CV-861 (connector type), CV-862 (integral cable type), CV-420 (4-20 mA loop powered), and CV-425 (4-20 mA with temperature output).

CV Series

Piezoelectric velocity transducers for continuous casing vibration monitoring of turbines, compressors, pumps and other rotating machinery.

Built-in-amplifier type (IEPE)

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

Intrinsically safe

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

4-20 mA loop powered option

CV-420 model provides direct 4-20 mA output for easy integration with PLC/DCS control systems via two-wire loop power.

SPECIFICATIONS

CV-861/CV-862 PERFORMANCE

8 SPECS
Sensitivity
3.94 mV/mm/s (100 mV/in/s) ±5% at 100 Hz, 25°C
Max Velocity
1,270 mm/s (50 in/s) pk
Vibration Limit
2,450 m/s² (250g) pk
Shock Limit
24,500 m/s² (2,500g) pk / 23,520 m/s² intrinsically safe
Natural Frequency
15 kHz
Frequency Response
2.5–3,500 Hz ±10%, 2–7,000 Hz ±3 dB
Transverse Sensitivity
Max 5%
Output Impedance
200 Ω typical

CV-420 PERFORMANCE (4-20 MA)

7 SPECS
Output
4–20 mA, full scale selectable (12.7 / 25.4 / 50.8 mm/s RMS)
Frequency Response
10–1,000 Hz ±10%, 3.5–2,000 Hz ±3 dB
Power Requirement
12 to 30 VDC (two-wire loop)
Max Loop Resistance
700 Ω at 24 VDC
Turn-On Time
30 seconds
Vibration Limit
2,450 m/s² (250g) pk
Shock Limit
24,500 m/s² (2,500g) pk

ELECTRICAL

3 SPECS
Power Supply (CV-861/862)
18 to 30 VDC, 2 to 10 mA DC (constant current)
Power Supply (CV-420)
12 to 30 VDC (two-wire loop)
Grounding
Case isolated, internally shielded

ENVIRONMENTAL

3 SPECS
Operating Temperature
−50 to +120°C (CV-861/862), −40 to +105°C (CV-420)
Relative Humidity
100% RH
Protection Rating
IP67

PHYSICAL

7 SPECS
Case Material
Stainless steel
Sealing
Hermetic
Weight (CV-861)
Approx. 145 g
Weight (CV-862)
Approx. 250 g (including cable)
Weight (CV-420)
Approx. 160 g
Mounting
M6 × 1 mounting stud
Output Connector (CV-861)
MIL-C-5015 2-pin

EXPLOSION PROTECTION

3 SPECS
TIIS
Ex ia IIC T4 X
ATEX
Ex ia IIC T4 Ga
KTL
Ex ia IIC T4

Use Cases

APPLICATIONS

Engineered for demanding environments across multiple industries and operating conditions.

01Gas turbines
02Medium-sized pumps
03Generators
04Motors
05Fans
06Compressors

DOCUMENTS

CA/CV Series Product Catalog

catalog

Coming soon

CV-86 Velocity Transducer Specifications

datasheet

Coming soon

CV-420 4-20mA Loop Powered Transducer Specifications

datasheet

Coming soon

CV-425 4-20mA with Temperature Output Specifications

datasheet

Coming soon

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

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