Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 3300/20-13-02-01-00-00 |
| Brand | Bently Nevada |
| Product Series | 3300 Series |
| Product Type | Dual Thrust Position Monitor |
| Measurement Function | Axial shaft position monitoring |
| Input Configuration | Dual channel |
| Current Output Accuracy | +/- 0.7% of signal; +/- 0.09 mA offset |
| Voltage Output Accuracy (+1 to +5 VDC) | +/- 1.1% of signal; +/- 10 mV offset |
| Voltage Output Accuracy (0 to -10 VDC) | +/- 1.1% of signal; +/- 15 mV offset |
| Power Supply | 3300 rack power distribution system |
Monitoring Function
The monitor compares axial shaft position with a fixed reference. Channels A and B provide separate measurements, so the monitoring system can track changes in rotor position. Depending on the configured alarm logic, the system can use these signals to identify conditions that require inspection or protective action.
The listed analog output accuracy values describe signal performance. However, they do not establish the monitor’s overall measurement accuracy. Check the selected output configuration and applicable test conditions before using these figures for calibration.
Configuration and Replacement
The complete model number is 3300/20-13-02-01-00-00. The supplied description links its suffixes to measurement range, transducer input, relay hardware, agency approval and safety barrier options. However, the exact meaning of each suffix remains unverified for this part number.
Before ordering a replacement, compare the complete model number with the installed module. Also confirm the probe type, measurement range and relay configuration to avoid selecting an incompatible unit.
Frequently Asked Questions
Q: What does the 3300/20 monitor measure?
A: It measures axial shaft position through two channels. Maintenance personnel can use these measurements to track rotor movement and assess thrust-position changes.
Q: Which analog output accuracy values does the supplied data list?
A: The data lists +/- 0.7% of signal and +/- 0.09 mA offset for current output. For voltage outputs, it lists +/- 1.1% of signal, with offsets of +/- 10 mV for +1 to +5 VDC and +/- 15 mV for 0 to -10 VDC. Verify these values against the applicable configuration before calibration.
Q: Does the -13 suffix confirm a range of 2.0-0-2.0 mm?
A: The supplied description associates the -13 option with that range, but the exact mapping remains unconfirmed. Check the original configuration documentation before ordering a replacement.
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