Description
Hard-Numbers: Technical Specifications
- Input Channels: 14× vibration sensor inputs
- Channels 1-8: Proximitors, Seismics (Velocity), Velomitors, Accelerometers (Ch 1-3 only)
- Channels 9-14: Proximitors (shaft displacement/position)
- Connector: 1× DC-37 male backplane connector
- Terminal Blocks: 2× 24-position screw terminals (48 total)
- Wire Gauge: 24–12 AWG (0.2–4.0 mm²)
- Torque Spec: 0.5–0.6 N·m (4.4–5.3 lb·in)
- Isolation: 2500 VAC RMS field-to-backplane
- Protection: On-board EMI/RFI filtering, over-voltage clamping
- Bias: Pull-up bias for open-circuit detection
- Operating Temp: -30°C to +70°C
- Hazardous Rating: Class I Div 2, Zone 2, ATEX/IECEx
- Dimensions: 158.75 × 107.95 × 25 mm
- Weight: 0.55 kg
- Mounting: DIN rail or direct panel mount
- Compliance: API 670, IEC 61508 SIL 2
IS200TVBAH2A
The Real-World Problem It Solves
Raw vibration signals from turbine probes are high-impedance and prone to electrical noise. Unconditioned signals cause inaccurate readings, false alarms, or missed faults. provides dedicated signal conditioning, EMI filtering, and galvanic isolation for each channel, ensuring clean, reliable vibration data reaches the controller.
Where you’ll typically find it:
- Gas/steam turbine shaft vibration monitoring
- Compressor train radial & axial displacement sensing
- Turbine supervisory instrumentation (TSI) systems
- Connected to IS220PVIBH1A vibration I/O packs
Bottom line: is the critical field interface that preserves vibration signal integrity in harsh industrial environments.
Hardware Architecture & Under-the-Hood Logic
is a passive interface board with dedicated signal conditioning per channel. No active CPU or firmware required.
- Vibration probes (proximitor/seismic) wire directly to screw terminals.
- On-board EMI filters suppress electrical noise from VFDs and motors.
- Precision bias networks provide required power for probe operation.
- Galvanic isolation barriers eliminate ground loops between field and control system.
- Conditioned signals route to DC-37 backplane connector.
- Backplane connects to mating PVIB/YVIB vibration I/O module.
- Open-circuit detection alerts system to failed probe wiring.
Field Service Pitfalls: What Rookies Get Wrong
Poor Shield GroundingGrounding cable shields at both ends creates ground loops, inducing 50/60 Hz noise into vibration signals. Causes high baseline readings and false trips.
- Field Rule: Ground shield ONLY at the TVBA terminal board; leave field end floating.
Incorrect Proximitor BiasUsing wrong bias voltage for proximity probes results in saturated or no signal. Leads to “bad vibration data” faults.
- Quick Fix: Verify probe type (3300/7200 series) and set on-board bias jumpers per sensor specs.
Loose Terminal ConnectionsVibration-induced loose terminals cause intermittent signal loss and erratic readings. Triggers nuisance vibration alarms.
- Field Rule: Torque all terminals to 0.55 N·m; re-torque after initial 24-hour run-in.
IS200TVBAH2A
Commercial Availability & Pricing Note
Please note: The listed price is for reference only and is not binding. Final pricing and terms are subject to negotiation based on current market conditions and availability.
