Item NO.:
3300/20Order(MOQ):
1Goods Stock:
27Payment:
T/TLead Time：
In stockWeight:
0.99KGDimension:
5x20x30cmDescription:
DUAL THRUST MONITORPrice:
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3300 Monitoring System
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3300/20 continuously measures two independent channels of shaft axial position relative to the machine thrust-clearance reference. Proximity probes are normally arranged to observe the thrust collar so the monitor can warn when axial movement approaches the configured Alert or Danger boundary.
3300/20 is ordered around full-scale range, transducer input, relay, approval and barrier options. A dependable installation therefore requires the transducer scale factor, probe gap and voting logic to be matched to the mechanical thrust arrangement before alarm testing.
Independent Channel A and B inputs support a dual-probe thrust measurement arrangement.
Documented input options cover 200 mV/mil or 100 mV/mil proximity systems according to the full code.
The monitor can be programmed for single or dual voting; the manufacturer recommends dual-probe AND voting for thrust protection.
Because thrust position is derived from probe gap voltage, a transducer fault can create a false thrust alarm. Verify both probe gaps and use the recommended dual-probe AND voting arrangement before returning protection to service.
| Manufacturer | Bently Nevada |
|---|---|
| Product family | 3300 Monitoring System |
| Product type | Dual Thrust Position Monitor |
| Product model | 3300/20 |
| Measurement | Shaft axial/thrust position |
| Input channels | One or two proximity-probe signals |
| Input sensitivity options | 200 mV/mil (8 V/mm) or 100 mV/mil (4 V/mm), by configuration |
| Alarm voting | OR or AND; dual-probe AND voting recommended for thrust applications |
| Recorder-output options | +4 to +20 mA, 0 to -10 Vdc or +1 to +5 Vdc |
| Nominal power consumption | 1.5 W |
| Rack space | One monitor position, excluding reserved positions 1 and 2 |
| Place of shipment | Xiamen, China |
| Delivery Time | 1-3 days |
| Quantity | 100% New Original |
| Minimum Order Quantity | 1pc |
Set probe gaps, zero reference, full scale and Alert/Danger points against the machine thrust-clearance plan, then prove both voting channels during commissioning.
Aim both probes at the intended collar or shaft surface, match transducer scale factor and keep recorder/relay wiring consistent with the ordered option.
Only when their documented scale factor and supply requirement match the monitor input option. Confirm both probe system codes and gaps, then verify the displayed position and alarm direction before enabling protection.
An open connection, disturbed gap or failed probe can appear as axial movement. Check both buffered signals, gap voltages and field wiring first; do not move alarm setpoints to hide the symptom.
The monitor can be configured for a single input, but the manufacturer recommends two probes observing the same collar with AND voting. This arrangement reduces both false trips and missed trips from a single transducer fault.
Place the rotor at the documented mechanical reference, confirm probe orientation and usable gap range, then set the electrical zero and test travel toward both alarm directions. Stop if the mechanical reference or clearance is uncertain.
First identify whether the installed monitor is configured for 4–20 mA, 0 to -10 Vdc or 1–5 Vdc. Match the control input and grounding to that output before connecting it.
Provide the complete catalog code, measurement range, proximity-system type, voting plan, recorder signal, relay/barrier option, machine drawing and clear labels from the installed monitor and rear module.
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Apter Power is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
