3300/20
3300/20 is a two-channel Bently Nevada thrust-position monitor for continuous axial shaft-position measurement with proximity transducers. The OEM recommends redundant probes and AND voting for thrust protection, while the inventory record does not identify the ordered range, transducer, relay or barrier options.
Scope note: 3300/20 identifies the documented component or assembly. Family-level content only; no exact range or input option can be claimed.
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+86 18150117685Dual thrust position monitor
3300/20 is a two-channel Bently Nevada thrust-position monitor for continuous axial shaft-position measurement with proximity transducers. The OEM recommends redundant probes and AND voting for thrust protection, while the inventory record does not identify the ordered range, transducer, relay or barrier options.
Family-level content only; no exact range or input option can be claimed.
Obsolete 3300 platform; OEM obsolete classification March 2014. Confirm current availability, repair options and any replacement path directly with the manufacturer before ordering 3300/20.
| Model | 3300/20 family; ordering suffix not recorded |
|---|---|
| Manufacturer | Bently Nevada |
| Series | 3300 Monitoring System |
| Product type | Dual thrust position monitor |
| Channels | Two independent axial-position channels |
| Inputs | One or two compatible proximity-probe signals |
| Input impedance | 10 kOhm |
| Sensitivity | 100 mV/mil (4 V/mm) or 200 mV/mil (8 V/mm), option dependent |
| Signal-conditioning accuracy | +/-0.33% of full scale typical and +/-1% maximum at 25 C |
| Recorder outputs | +4 to +20 mA, 0 to -10 Vdc, or +1 to +5 Vdc per channel; field-programmable |
| Alarm voting | OR or AND; OEM strongly recommends AND voting for thrust-position applications |
| Operating temperature | 0 C to +65 C |
| Lifecycle | Obsolete 3300 platform; OEM obsolete classification March 2014 |
| OEM document | 141500-01 Rev. J |
| Official document | 3300/20 Dual Thrust Position Monitor, document 141500-01 Rev. J |
Lifecycle and compatibility statements are limited to the cited manufacturer documentation. Availability, condition, repairability and substitution must be confirmed separately.
3300/20 is a legacy Bently Nevada 3300-series dual thrust-position monitor.
3300/20 provides two independent axial-position channels.
3300/20 supports one or two compatible proximity probe/Proximitor systems.
3300/20 provides per-channel position indication, Alert/Danger alarms, buffered transducer signals and selectable recorder outputs.
3300/20 belongs to the 3300 monitoring system, which Bently Nevada classified as obsolete in March 2014; limited repairs were possible only through 2017.
3300/20 should not be selected from the base model alone. The inventory value 3300/20 omits full-scale range, transducer input, relay, approval and barrier options.
Before installing or replacing 3300/20, verify the complete nameplate number, rack generation, input transducer, relay module, barriers, approvals and field wiring. For machinery protection, Bently Nevada recommends two probes observing the same collar and AND voting rather than relying on one probe.
3300/20 is covered at family level by Bently Nevada document 141500-01 Rev. J.
Send the complete component and matching system part numbers, required electrical length, quantity, target material, approval requirements, destination and clear label photos. Availability and condition will be confirmed before quotation.
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