Bently Nevada 3500/33-SIL2-03-01 Low-current 16-Channel Relay Module
A 16-output SPDT relay module using low-current contacts and the cNRTLus Class I, Division 2 approval option.
Key Information
3500/33-SIL2-03-01 identifies a Bently Nevada 3500/33 16-channel relay arrangement using output option 03 and approval option 01. Option 03 selects the low-current relay output module, while option 01 selects cNRTLus Class I, Division 2 approval.
The module occupies one full-height front slot with a corresponding rear I/O slot. Each of its 16 SPDT relay outputs can be programmed from alarm, Not-OK or measured-variable logic in the 3500 rack.
Functions
- Provides 16 independently programmed relay outputs in one 3500 rack module.
- Supports voting logic using alert, danger, Not-OK and measured-variable inputs from rack monitor channels.
- Uses low-current gold-plated relay contacts for the option 03 output assembly.
- Allows four groups of four channels to be selected for normally energized or normally de-energized operation.
- Provides OK, TX/RX and channel-alarm LED indications.
Specifications
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Configuration | 3500/33-SIL2-03-01 |
| Ordering Base | 3500/33-03-01 |
| Output Module Option | 03, low-current 16-channel relay output |
| Approval Option | 01, cNRTLus Class I, Division 2 |
| Relay Outputs | 16 |
| Relay Type | Single-pole double-throw (SPDT) |
| Contact Material | Gold-plated for low-current option |
| Minimum Switched Current | 1 mA at 1 Vdc |
| Maximum Low-current Rating | 100 mA at 48 Vdc |
| Power Consumption | 5.8 W typical |
| Relay Contact Life | 10,000 cycles |
| Channel Grouping | Four groups of four channels |
| Rack Space | One full-height front slot and one full-height rear slot |
Installation
- Install the control module to the right of the Transient Data Interface in a compatible 3500 rack.
- Install the matching option 03 rear output module and verify the field-contact current range.
- Set each four-channel group for normally energized or normally de-energized operation as required.
- Use 3500 Rack Configuration Software version 3.3 or later for alarm-drive programming.
- For functional safety use, apply the restricted contact-voltage limits required by the safety certificate.
Lifecycle
- Keep 3500/33-SIL2-03-01, its control module and option 03 output module identified as one configured assembly.
- Record the channel logic, voting rules, energized state and latching choice before replacement.
- Confirm the low-current contact option before moving field wiring from a standard silver-contact module.
- Verify Rack Configuration Software, Data Acquisition Software and Data Display Software compatibility.
- Perform the required proof and functional checks after service in a SIL application.
FAQ
Which output option is represented by 3500/33-SIL2-03-01?
3500/33-SIL2-03-01 uses option 03, the low-current 16-channel relay output module.
Which approval option is represented by 3500/33-SIL2-03-01?
3500/33-SIL2-03-01 uses option 01 for cNRTLus Class I, Division 2 approval.
How many relay outputs does 3500/33-SIL2-03-01 provide?
3500/33-SIL2-03-01 provides 16 independently programmable SPDT relay outputs.
What contact range applies to 3500/33-SIL2-03-01?
The low-current contacts used by 3500/33-SIL2-03-01 are specified from 1 mA at 1 Vdc up to 100 mA at 48 Vdc.
Which software is needed to configure 3500/33-SIL2-03-01?
3500/33-SIL2-03-01 requires 3500 Rack Configuration Software version 3.3 or later; the product data also specifies Data Acquisition 2.40 or later and Data Display 1.40 or later.
What is important when 3500/33-SIL2-03-01 is used in a SIL system?
The restricted voltage required by the functional safety certificate must be observed for 3500/33-SIL2-03-01; higher contact voltages are not allowed in that SIL use.
