Overview
Manuals
Signal Scaling
Mounting Control
Bias Verification
Features:
- Exact 330425-02-CN three-wire accelerometer with 25 mV/g sensitivity and 75 g peak range.
- M8 x 1 integral stud mounting execution with a 3-pin MIL-C-5015 connection.
- CN suffix; not defined in the current public Rev. AB ordering table as encoded or retained by the complete order suffix.
The 330425-02-CN is a case-mounted 330425 accelerometer intended for critical rotating machinery where casing acceleration and high-frequency gear-mesh vibration must be measured. Its 25 mV/g sensitivity, 75 g peak range, 10 Hz to 15 kHz ±3 dB response and case-isolated stainless-steel construction must be matched to the configured monitoring input.
This execution uses the M8 x 1 integral stud option. The approval suffix is CN suffix; not defined in the current public Rev. AB ordering table. Before replacement, confirm the complete nameplate, mounting surface, 4.1 N·m torque requirement, three-pin connector, -24 V DC excitation, cable shielding and 25 mV/g channel scale. After installation, verify output bias, polarity and measured response before restoring monitoring or protection functions. Because CN is not defined in the current public Rev. AB ordering table, use the supplied unit marking and certificates rather than assigning an approval meaning from appearance.
The 330425-02-CN Bently Nevada 330425 Three-Wire Piezoelectric Accelerometer may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 330425-02-CN documentation and reference links.
Important Notice: The official 141638 Rev. AB datasheet defines the 330425 accelerometer and 130539 cable ordering family. Confirm the complete part number, supplied marking, receiving hardware and required accessories before replacement.
Configure the receiving channel for 25 mV/g sensitivity and preserve the 75 g peak acceleration range. Do not copy a 330400 channel scale, because that sensor uses 100 mV/g and would produce an incorrect engineering-value conversion.
The 330425-02-CN uses a M8 x 1 integral stud. Prepare the documented mounting surface, apply 4.1 N·m torque, protect the three-pin connector from strain and moisture, and verify that the measurement axis matches the installation drawing.
Supply -24 ±0.5 V DC with 2 mA nominal bias current, then verify the -8.5 ±0.5 V DC output-bias voltage before accepting vibration data. The CN suffix is not defined in the current public Rev. AB ordering table; retain it exactly and verify the supplied approval certificates.
