Description
Product Core Brief
- Model: 170190-01E
- Brand: Bently Nevada
- Series: FieldMonitor Hazardous Area Solutions
- Core Function: Provides dual galvanic isolation for intrinsically safe transducer installations, eliminating the need for external Zener safety barriers.
- Product Type: Dual Galvanic Isolator Module
- Key Specs: Dual Channel | 1701/06 ITB Compatible | Zone 0/1/2 Support
- Note: Must be installed in a non-hazardous, Division 2, or Zone 2 area; verify sensor compatibility (-01 vs -02 variant) before ordering.
Bently Nevada 1701/15
Key Technical Specifications
- Module Type: Dual Galvanic Isolator
- Compatible Base: 1701/06 Isolator Terminal Base (ITB)
- Sensor Compatibility: 3300 XL Proximitor, Velomitor, Accelerometers, 170133/170172 Internal Dual Proximitor
- Safety Certification: Intrinsic Safety (Ex ia)
- Hazardous Area Rating: Supports Zone 0, Zone 1, and Division 1 transducers
- Module Location: Non-hazardous, Division 2, or Zone 2 areas only
- Operating Temp: -30 °C to +65 °C (-22 °F to +150 °F)
- Storage Temp: -40 °C to +85 °C (-40 °F to +185 °F)
- Humidity: 95% non-condensing
- Mounting: Direct insertion into 1701/06 ITB
Product Introduction
The Bently Nevada 170190-01E is a Dual Galvanic Isolator designed as part of the FieldMonitor hazardous area solutions. It installs directly into the 1701/06 Isolator Terminal Base (ITB) to provide intrinsic safety for transducer installations without requiring external safety barriers or dedicated intrinsically safe grounding.
This module is specifically engineered for use with standard Bently Nevada external Proximitor sensors, velocity transducers, Velomitor sensors, and accelerometers. By eliminating the need for external Zener barriers, it significantly reduces wiring complexity, installation time, and maintenance overhead in hazardous environments.
QA & Testing SOP (Transparency Building)
- Incoming Inspection: Verify serial number traceability against OEM records; inspect module contacts for oxidation or damage; confirm anti-static packaging integrity.
- Live Testing: Install in 1701/06 ITB test fixture; verify proper seating and backplane communication; test galvanic isolation resistance between input and output channels.
- Electrical Testing: Measure insulation resistance (>10 MΩ at 500VDC); verify ground continuity <0.1 Ω; test intrinsic safety barrier voltage and current limiting.
- Configuration Backup: Record exact module revision and configuration settings; photograph all jumper and switch settings before packing.
- Final QC & Packaging: Apply QC pass tag with test date; pack in OEM-spec anti-static bag with foam corner protectors; seal in individual box with documentation.
Bently Nevada 1701/15
Installation Pitfalls & Guide (Engineer to Engineer)
❗ Hazardous Area Placement Error: The 170190-01E module and its 1701/06 ITB MUST be located in a non-hazardous, Division 2, or Zone 2 area. Only the connected transducers can be in Division 1, Zone 1, or Zone 0 areas. Installing the module itself in a higher hazard zone violates safety certifications.
❗ Variant Mismatch (-01 vs -02): The 170190-01E is compatible with standard Proximitor sensors, Velomitor, and accelerometers. The 170190-02 variant is specifically designed for CEC 4-131 and equivalent velocity transducers. Verify your sensor type before ordering.
❗ ITB Compatibility: This module is designed exclusively for the 1701/06 Isolator Terminal Base. It will not function correctly in standard 3500 rack slots or other terminal bases. Verify you have the correct ITB before installation.
❗ Grounding Requirements: While this module eliminates the need for Zener barrier grounding, the 1701/06 ITB still requires proper equipment grounding for safety. Verify the ITB is properly grounded to the panel chassis before connecting field wiring.
❗ ESD Dangers: The galvanic isolation circuitry is extremely ESD-sensitive. A single static discharge can compromise the intrinsic safety barrier. Always wear a grounded wrist strap connected to the ITB chassis during handling.
Replacement Procedure:
- Pre-install: Verify new module revision matches; confirm ITB is in correct hazardous area classification; photograph existing configuration.
- Removal: De-energize field transducers; carefully extract old module from 1701/06 ITB; inspect ITB contacts for damage.
- Install: Align 170190-01E module with ITB guides; press firmly until fully seated; verify no gap between module and base.
- Power-on Test: Re-energize transducers; verify signal integrity; test alarm setpoints and safety barrier functionality.
FAQ (Frequently Asked Questions)
Q: Can I install the 170190-01E in a Zone 1 hazardous area?
A: No. The 170190-01E module and 1701/06 ITB must be located in non-hazardous, Division 2, or Zone 2 areas. Only the connected transducers (sensors) can be in Zone 1 or Zone 0 areas. This is a critical safety certification requirement.
Q: What is the difference between 170190-01E and 170190-02?
A: The 170190-01E is compatible with standard Bently Nevada Proximitor sensors, Velomitor sensors, and accelerometers. The 170190-02 is specifically designed for CEC 4-131 and equivalent velocity transducers. Using the wrong variant will result in signal conditioning errors.
Q: Do I still need external Zener safety barriers with this module?
A: No. The 170190-01E provides integrated galvanic isolation, eliminating the need for external Zener safety barriers or dedicated intrinsically safe grounding systems. This is one of its primary advantages over traditional IS installations.
Q: Can I use this module with third-party sensors?
A: Not recommended. The 170190-01E is calibrated specifically for Bently Nevada transducer systems. Third-party sensors may have different impedance, capacitance, or power requirements that could compromise intrinsic safety certification or signal accuracy.
Q: What happens if the galvanic isolation fails?
A: You lose intrinsic safety protection between the field transducer and the safe area equipment. This creates a potential ignition hazard in hazardous areas. Replace the module immediately and verify system grounding. The machinery protection system may continue to operate, but safety certification is compromised.
Q: How do I verify if this is a genuine Bently Nevada 170190-01E?
A: Check for the Bently Nevada logo etched (not printed) on the module; verify the serial number matches the label; inspect for factory-installed safety certification markings. Request the OEM certificate of conformity and intrinsic safety certification documentation from the supplier.
Q: Can I use optional cable assembly 138925 with this module?
A: Yes. The optional cable assembly (p/n 138925) is available when buffered dynamic outputs need to be routed to an external patch panel or other devices requiring dynamic signals. Verify cable length and routing meet intrinsic safety requirements.
Q: What’s the warranty on replacement units?
A: Standard warranty is 12 months from shipment date, covering manufacturing defects and DOA conditions. Warranty does not cover ESD damage, improper installation in wrong hazardous area zone, or physical damage from forced insertion. Always retain the QC test report and original packaging for warranty claims.
