The 3500 is a modular machinery protection platform: a 3500/05 rack holds power supplies, a rack interface module and up to 14 monitor slots. Below are the modules most often requested for replacement, retrofit and spare-part stocking.
| Module | Typical Part No. | Function | Notes |
|---|---|---|---|
| 3500/05 | 129766-01 | System rack | 19" full size, 14 monitor slots; 12" mini rack has 7 |
| 3500/15 | 129767-01 | Power supply module | Hot-swappable; AC or DC input variants |
| 3500/15 | 106M1081-01 | AC power input module | High-voltage AC input version |
| 3500/15 | 133300-01 | DC power input module | Low-voltage DC input version |
| 3500/20 | 129768-01 | Rack Interface Module (RIM) | Rack configuration and communication |
| 3500/22M | 161580-01 | Transient Data Interface (TDI) | System communications plus transient data capture |
| Module | Typical Part No. | Measures | Channels |
|---|---|---|---|
| 3500/40M | 143488-01 | Radial vibration, axial position, eccentricity, differential expansion | 4 |
| 3500/42M | 143489-01 | Acceleration, velocity, shaft absolute vibration | 4 |
| 3500/44M | 143490-01 | Aeroderivative gas turbine vibration | 4 |
| 3500/45 | 135545-01 | Axial position, differential expansion, case expansion, valve position | 4 |
| 3500/46M | — | Hydro turbine monitoring | 4 |
| 3500/25 | 129770-01 | Enhanced Keyphasor — phase reference and speed | 2 |
| 3500/50M | 134938-01 | Tachometer — speed and zero speed | 2 |
| 3500/53 | 134939-01 | Electronic overspeed detection | 2 |
| Module | Typical Part No. | Function | Channels |
|---|---|---|---|
| 3500/32 | 129771-01 | Relay module | 4 |
| 3500/32M | 125720-01 | Relay module (M series) | 4 |
| 3500/33 | 162291-01 | Relay module | 16 |
| Module | Typical Part No. | Function | Channels |
|---|---|---|---|
| 3500/60 | 134542-01 | Temperature monitor (RTD / TC) | 6 |
| 3500/61 | 133811-02 | Temperature monitor with 4–20 mA output | 6 |
| 3500/62 | — | Process variable monitor | 6 |
| 3500/64M | — | Dynamic pressure monitor | 4 |
| 3500/65 | — | Temperature monitor | 16 |
| Module | Typical Part No. | Function | Channels |
|---|---|---|---|
| 3500/70M | — | Reciprocating compressor monitor | 4 |
| 3500/72M | — | Rod position and rod drop monitor | 4 |
| 3500/77M | — | Cylinder pressure monitor | 4 |
| Module | Typical Part No. | Function | Notes |
|---|---|---|---|
| 3500/92 | 138629-01 | Communication gateway | Modbus / Ethernet link to DCS |
| 3500/93 | 137412-01 | System display | Local LCD display unit |
| 3500/94 | 148636-01 | VGA display | Touchscreen VGA display |
| Item | Typical Part No. | Used with | Notes |
|---|---|---|---|
| 3500/40 I/O module | 135489-04 | 3500/40M | Field wiring termination |
| 3500/42 I/O module | 135489-01 | 3500/42M | Standard I/O |
| 3500/42 I/O module | 135489-02 | 3500/42M | Four-channel version |
| Configuration cable | 130118-0010-02 | 3500 rack | Rack configuration cable |
Part number not listed, or looking for a discontinued module? Send us the model number — we source Bently Nevada 3500 spares including long-lead and obsolete items.
Part numbers shown are typical ordering references taken from publicly available Bently Nevada documentation and are given for identification only. Availability is confirmed at quotation.
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