Vibration Velocity Sensors, Velocity Transmitters

YMC Series Piezoelectric Vibration Velocity Sensors are solid state piezoelectric velocity measurement devices. Many vibration analysts prefer to examine vibration signals in terms of velocity (mm per second) to amplify the signal of interest. Piezoelectric Velocity Sensors inherently decrease high frequency signals allowing better measurement of low frequency vibration. They are essentially accelerometers with an internal integration circuit which will produce an output relative to velocity.

2.     Piezoelectric Vibration Velocity Sensor

YMC Series Piezoelectric Vibration Velocity Sensors are solid state piezoelectric velocity measurement devices. Many vibration analysts prefer to examine vibration signals in terms of velocity (mm per second) to amplify the signal of interest. Piezoelectric Velocity Sensors inherently decrease high frequency signals allowing better measurement of low frequency vibration. They are essentially accelerometers with an internal integration circuit which will produce an output relative to velocity.

Features

lIdeal for monitoring low–to–intermediate frequency applications

lGenerates an output proportional to velocity

lVelocity measurements serve as a reliable guide for monitoring the severity of faults in slow–rotating equipment

lESD and miswiring protection

image.png    2.1  Piezoelectric Vibration Velocity Sensor(IEPE Mode)

Model:YMC

311V01–25.4

311V01–50.8

311V01–100

311V01–250

311V01–500

311V01–1270

311V02–25.4

311V02–50.8

311V02–100

311V02–250

311V02–500

311V02–1270

Sensitivity

mV/mm/s

200

100

50

20

10

4

Measuring Range

mm/s pk

±25.4

±50.8

±100

±250

±500

±1270

Resolution

mm/s rms

0.03

0.05

0.1

0.25

0.5

1

Frequency Range

±5%

Hz

5 – 1k

5 – 1k

5 – 1k

5 – 1k

5 – 1k

5 – 1k

±10%

Hz

3 – 3k

3 – 3k

3 – 3k

3 – 3k

3 – 3k

3 – 3k

Resonant Frequency

kHz

15

15

15

15

15

15

Temperature Range

–40 – +85

–40 – +85

–40 – +85

–40 – +85

–40 – +85

–40 – +85

Sensing Element


Ceramic

/Shear

Ceramic

/Shear

Ceramic

/Shear

Ceramic

/Shear

Ceramic

/Shear

Ceramic

/Shear

Excitation Voltage

V

+18–+28

+18–+28

+18–+28

+18–+28

+18–+28

+18–+28

Excitation Current

mA

2 – 10

2 – 10

2 – 10

2 – 10

2 – 10

2 – 10

DC Offset

V

+10 – +14

+10 – +14

+10 – +14

+10 – +14

+10 – +14

+10 – +14

Output Connector


MIL–C–5015

MIL–C–5015

MIL–C–5015

MIL–C–5015

MIL–C–5015

MIL–C–5015

Housing Material


Stainless Steel

Stainless Steel

Stainless Steel

Stainless Steel

Stainless Steel

Stainless Steel

Housing Isolation

Ω

≥109

≥109

≥109

≥109

≥109

≥109

Sealing


Epoxy

Epoxy

Epoxy

Epoxy

Epoxy

Epoxy

Weight

g

65

65

65

65

65

65

80

80

80

80

80

80

Size

mm

Φ25.455

Φ25.455

Φ25.455

Φ25.455

Φ25.455

Φ25.455

30L18W21H

30L18W21H

30L18W21H

30L18W21H

30L18W21H

30L18W21H

Mounting


1/4-28(Female)

1/4-28(Female)

1/4-28(Female)

1/4-28(Female)

1/4-28(Female)

1/4-28(Female)

Φ6(Thru-hole)

Φ6(Thru-hole)

Φ6(Thru-hole)

Φ6(Thru-hole)

Φ6(Thru-hole)

Φ6(Thru-hole)

 

2.2  Piezoelectric Vibration Velocity Sensor(DC Supply Mode)

2.2.1       Dynamic Output within 4 – 20mA

Model

Sensitivity

Measuring Range(mm/s)

Frequency Range (±10%)

Resolution

Weight(g)

Size(mm)

312V01–12.7–ACI

630μA/mm/s

±12.7

5– 1000 Hz

0.1 mm/s rms

125

Φ2865

312V01–25.4–ACI

315μA/mm/s

±25.4

5 – 1000 Hz

0.3 mm/s rms

125

Φ2865

312V01–50.8–ACI

167μA/mm/s

±50.8

5 – 1000 Hz

0.8 mm/s rms

125

Φ2865

312V01–100–ACI

80μA/mm/s

±100

5 – 1000 Hz

1.0 mm/s rms

125

Φ2865

     2.2.2       RMS Output within 4 – 20mA

Model

Output

Measuring Range(mm/s)

Frequency Range (±10%)

Resolution

Weight(g)

Size(mm)

312V01–12.7–DCI

4 – 20 mA

0 –12.7  

5 – 1000 Hz

    0.07 mm/s rms

125

Φ2865

312V01–25.4–DCI

4 – 20 mA

0 – 25.4

5 – 1000 Hz

0.1 mm/s rms

125

Φ2865

312V01–50.8–DCI

4 – 20 mA

0 – 50.8

5 – 1000 Hz

0.15 mm/s rms

125

Φ2865

     2.2.3       RMS Output within 0–5V

Model

Output

Measuring Range(mm/s)

Frequency Range (±10%)

Resolution

Weight

Size(mm)

312V01–12.7–DCV

0 – 5 V

0 – 12.7  

5 – 1000 Hz

0.1 mm/s rms

125

Φ2865

312V01–25.4–DCV

0 – 5 V

0 – 25.4

5 – 1000 Hz

0.22 mm/s rms

125

Φ2865

312V01–50.8–DCV

0 – 5 V

0 – 50.8

5 – 1000 Hz

0.50 mm/s rms

125

Φ2865

 

Common Parameters:

 

1、      Power Supply: +15 – +30V DC

2、      Non–linearity:3% F.S.

3、      Transverse Sensitivity:5%

4、      TempertureRange:–40 – +85

5、      Output signal:4 – 20mA, 0 – 5V, or others

6、      Load Resistance:((VDC–15)1000/20mA)Ω

7、      Signal Ground Insulation Resistance: ≥108Ω 

8、      Output types:

Ø 4 – 20mA Output: 2 pin MIL–C–5015;

Ø Terminal or lead output type: directly lead to the output signal;

Ø Output with or initial acceleration signal:3 pin MIL–C–5015

image.png

image.png

 

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