Overview
Specification
| Parameter | Specification |
|---|---|
| Model | 74712-06-05-03-00 |
| Product Type | Seismoprobe Velocity High-Temperature Two-Wire Transducer |
| Sensitivity | 20 mV/mm/s (500 mV/in/s), ±5% |
| Calibration Load | 10 kΩ across pins A and B |
| Sensitivity Temperature Coefficient | 0.2% / °C |
| Frequency Response | 4.5 to 1000 Hz (+0, -3 dB typical) |
| Dynamic Operating Range | 2.54 mm (0.100 in) peak-to-peak maximum displacement |
| Velocity Range | 25 mm/s (1 in/s) |
| Coil Resistance | 1.25 kΩ ±5% |
| Locked Coil Inductance | 125 mH typical |
| Amplitude Linearity | ±5% from 0.01 to 5 in/s (0.254–127 mm/s) at 100 Hz |
| Shock Resistance | 50 g peak along non-sensitive axis |
| Transverse Sensitivity | ±10% max at 100 Hz and 1 in/s |
| Polarity of Output Signal | Pin A positive relative to Pin B when case moves toward connector |
| Lead Wire Maximum Length | 305 m (1,000 ft) |
| Operating Temperature | -29°C to +204°C (-20°F to +400°F) |
| Storage Temperature | -29°C to +204°C (-20°F to +400°F) |
| Relative Humidity | Up to 95% non-condensing; 100% non-submerged with integral cable |
| Maximum Use Altitude | 2,000 m (6,561 ft) above sea level |
| Environmental Protection | Dust and moisture resistant; consult for radiation environments |
| Transducer Mounting Angle / Minimum Operating Frequency | 0 ±100°, 10 Hz (600 cpm) |
| Connector / Cable Option | Terminal block top mount (no cable) |
| Mounting Base Option | Rectangular flange |
| Agency Approval Option | No Approvals |
FAQ
A1: The 74712 measures absolute vibration of bearing housings, casings, or structures using a moving-coil design for velocity output.
Q2: Does the 74712 require an external power supply?
A2: No, the two-wire moving-coil design does not require external power, making it suitable for portable or remote applications.
Q3: What is the operating temperature range of this transducer?
A3: The 74712 operates reliably from -29°C to +204°C (-20°F to +400°F), supporting high-temperature environments.
Q4: How long can the lead wire be between the transducer and the monitor?
A4: Lead wires can extend up to 305 meters (1,000 feet) with consideration for frequency roll-off at longer distances.
Q5: What is the frequency response and velocity range?
A5: The frequency response is 4.5 to 1000 Hz (+0, -3 dB typical), and it measures velocity up to 25 mm/s (1 in/s).
Manual/Datasheet PDF
Bently Nevada Top Products
| 3500 | 3300 | Probe&Cable |
| 3500/05-01-01-00-00-00 | 3300/05-22-00-00 | 990-04-70-01-00 |
| 3500/05-01-01-05-00-01 | 3300/05-24-00-00 | 990-04-70-02-00 |
| 3500/05-01-02-05-00-01 | 3300/45-02-01-03-00 | 990-04-XX-01-00 |
| 3500/05-01-03-05-00-01 | 3300/45-02-02-03-00 | 990-04-XX-03-00 |
| 3500/05-02-04-00-00-00 | 3300/48-01-01-01-00 | 990-05-50-02-01 |
| 3500/05-02-04-00-00-01 | 3300/48-02-01-00-00 | 990-05-70-01-00 |
| 3500/05-02-05-00-00-00 | 3300/50-01-01-00-00 | 990-05-70-01-01 |
| 3500/05-02-05-00-00-01 | 3300/50-02-01-00-00 | 990-05-70-02-00 |
| 3500/20 125744-02 | 3300/20-13-02-01-00-00 | 990-05-70-03-00 |
| 3500/22 125768-01 | 3300/40-13-01-01-00-00 | 990-05-XX-03-05 |
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