Bently Nevada 3300/45 Dual Differential Expansion Monitor
Brand | Bently Nevada |
Module Number | 3300/45 |
Order Number | 3300/45 |
Unit Price | $500 |
Country Of Origin | USA |
Weight | 0.8kg |
Certificate |
C/O from the Chamber of Commerce C/Q from the Manufacturer |
Warranty | 12 Months |
Inventory Qty | 3 |
Bently Nevada 3300/45 is a dual-channel differential expansion monitoring module, which is specially designed to measure the axial thermal expansion difference between the rotor and the casing of large rotating machinery.
Bently Nevada 3300/45 Key parameters
Parameter |
Specification |
Conditions |
Input Channels |
2 independent channels |
Dual-redundant differential expansion (DE) |
Full-scale Range |
0–20 mm / 0–1.0 in (selectable) |
8 programmable options via dip switches |
Transducer Support |
25 mm, 35 mm, 50 mm proximity probes |
Excludes 05–08 range options for 25/35 mm |
Alarm Setpoints |
4 per channel (2 over, 2 under) |
SPDT relay, 5 A / 250 VAC |
Output Signal |
4–20 mA (per channel) |
Linear to measured DE, load ≤500 Ω |
Response Time |
<100 ms |
Signal input to relay activation |
Power Supply |
-24 Vdc ±10% |
Via 3300 rack backplane |
Operating Temp. |
-30°C to +65°C |
Humidity 10–90% non-condensing |
Compliance |
API 670 (4th Ed.) |
TSI (Turbine Supervisory Instrumentation) |
Beneficiary's Bank: CITIBANK N.A.
Beneficiary address:Champion Tower,Three Garden Road,Central,Hong Kong
Beneficiary: Vogi International Trading Co., Limited
Account No.: 395714900
Bank Code: 006 Branch Code: 391
Swift Code:CITIHKHX (CITIHKHXXXX * If 11 characters are required)
Payment Term:T/T
Comparison with similar models and alternatives
Model |
Advantages |
Disadvantages |
Bently Nevada 3300/45 |
Dedicated differential expansion (DE) algorithm; Supports dual-slope/complementary measurement modes |
Limited to DE function; No vibration/temperature channels |
3300/16 (Vibration Monitor) |
Multi-parameter integration (vibration + Keyphasor®) |
Requires external signal conditioner for DE monitoring |
Alternative: 3500/45 |
Channel capacity increased to 4; Integrated System 1® diagnostics |
Requires 3500 rack replacement; Upgrade cost increases by 60% |
Alternative: 3701 ADAPT |
Distributed architecture; Supports wireless transmission |
Only supports vib/tach; Incompatible with DE monitoring |
Upgrade suggestion:
The 3300 series has been discontinued, the Bently Nevada 3300/45 is a direct replacement for the 3500/45:
Advantages: Compatible with the original 50 mm probe, with the new "thermal expansion rate warning" function;
Disadvantages: The rack and backplane need to be upgraded simultaneously, and the transformation period is 3-4 weeks.
