I. Product Overview

Model: 72308-01 (7200 TP-R)

Brand: Bently Nevada

Type: Thrust Indicator / Shaft Displacement Monitoring Module

Compatibility: 7200 series monitoring system, can also be used with 3500 system

Function: Real-time monitoring of rotor axial movement / thrust disc position, over-limit alarm / interlock protection

II. Technical Parameters (Core)

Measurement Principle: Electromagnetic Induction (Non-contact)

Channels: Single-channel shaft displacement / thrust monitoring

Sensitivity: 7.874 V/mm (200 mV/mil)

Range: Typical ±1 mm (±40 mil), configurable

Input: Compatible with 3300XL/7200 series electromagnetic induction probes (5/8/11 mm)

Output: 4–20 mA analog quantity, relay alarm contacts

Power Supply: 24 VDC (system backplane or external power supply)

Operating Temperature: 0 °C to +60 °C; Storage: -40 °C to +85 °C

Protection: Industrial-grade ruggedization, vibration resistance, electromagnetic interference resistance

III. Application Scenarios

Power Generation: Turbines, gas turbines, generator shaft displacement / thrust monitoring

Petroleum and Chemicals: Centrifugal compressors, reciprocating compressors, pumps, fans, etc. (key rotating machinery)

Function: Protection + Monitoring, to prevent rotor axial friction, thrust bearing burnout

IV. Installation and Wiring

Installation: Standard guide rail / rack slot installation, no special tools required

Probe: Electromagnetic induction probe installed on the thrust disc surface, gap set according to probe specifications

Wiring: Probe → Extension cable → Preamplifier → 72308-01 module input; Output connected to DCS/PLC/alarm interlock

V. Maintenance and Fault Diagnosis

Daily: Observe indicator lights, confirm stable values, no alarms

Regular: Calibrate probe gap and module range, check cable aging / grounding

No data: Check power supply, probe / cable connection, preamplifier status

Data drift: Re-calibrate probe gap, check shielding grounding, troubleshoot interference

VI. Model Description

72308: 7200 series thrust indicator module family code

‑01: Hardware version / configuration code (different versions have the same functions and good compatibility)