Rosemount TankRadar 2160 | 9240002-685 Field Communication Unit

The Rosemount TankRadar 2160 (P/N 9240002-685) is a robust Field Communication Unit (FCU) designed for high-precision tank gauging applications. Serving as an essential interface in the Rosemount Tank Gauging system, it facilitates seamless communication between field-mounted radar level transmitters and the central control room (DCS or SCADA). By ensuring reliable data transmission and signal conversion, the 2160 FCU plays a pivotal role in the monitoring and inventory management of bulk liquid storage facilities.

Technical Specifications

Parameter	Detail
Product Model	2160 / 9240002-685
Manufacturer	Rosemount (Emerson)
Function	Tank Gauging Field Communication Unit
Communication Bus	TRL2 (Tankbus) to RS485 / Modbus
Power Supply	24V DC
Housing Material	Corrosion-resistant industrial grade
Operating Temperature	-40°C to +70°C
Dimensions (Approx.)	200mm x 150mm x 100mm
Weight	1.5 kg
Country of Origin	Sweden / USA

Application Fields

Petrochemical Storage: Inventory monitoring for refineries and tank farms.
Marine & Offshore: Level measurement systems for cargo and ballast tanks.
Industrial Terminals: Reliable level gauging for chemical storage and transfer hubs.
Energy Infrastructure: Integration with safety-critical inventory management systems.

Usage Instructions

Mounting: Install the FCU in a secure, weather-protected junction box or cabinet near the field instrumentation. Ensure the housing is properly grounded to mitigate electromagnetic interference.
Wiring: Connect the Tankbus (TRL2) loops from the radar transmitters to the designated input terminals. Connect the RS485/Modbus output cables to your central data collection hub.
Configuration: Use the Rosemount TankMaster software to configure the unit’s address and communication parameters. Ensure the baud rate matches the host control system.
Maintenance: Regularly inspect the cable entries and terminal connections for signs of corrosion, particularly in coastal or harsh industrial environments.
Diagnostics: Observe the onboard status LEDs. Consistent flashing or solid patterns indicate active communication status; consult the hardware manual for specific fault codes if status lights appear abnormal.

Frequently Asked Questions (Q&A)

Q: Is the 9240002-685 compatible with modern radar level gauges?
- A: Yes, it is designed to bridge legacy Tankbus (TRL2) signals, making it an ideal choice for maintaining or expanding existing Rosemount gauging infrastructure.
Q: Does this unit require external power?
- A: Yes, a stable 24V DC power supply is required to power the internal communication circuitry and the connected Tankbus loops.
Q: Can this unit communicate directly with a PLC?
- A: Yes, via the Modbus RS485 interface, the FCU can act as a gateway, allowing PLCs or DCS controllers to read level, temperature, and pressure data directly.