The Rosemount 1408H is a compact, non-contacting radar level transmitter developed for hygienic applications. Its 80 GHz radar technology tracks the product surface while minimizing interference from internal vessel obstructions. Designed for cleaning-intensive environments, it supports Clean-in-Place (CIP) and Sterilize-in-Place (SIP) processes and offers integration options for modern process automation systems.
Key Features
- 80 GHz FMCW radar technology for continuous level measurement
- Suitable for liquids and solids
- Smart Echo Supervision™ for reliable detection of the true product surface
- Polished stainless steel housing with IP69K-rated protection
- CIP algorithm to detect cleaning cycles
- Designed for CIP/SIP-compatible hygienic processes
- No dead zone for measurement close to the top of the tank
- G1-inch process connection compatible with hygienic adapters
- M12 electrical connector for convenient installation
- Available with 4–20 mA HART® or IO-Link, depending on configuration
- Configurable switch output for abnormal level conditions
- Hygienic certifications include 3-A®, FDA, EC 1935/2004 and EHEDG, according to the applicable configuration
Suitable Applications
- Food and beverage production
- Dairy processing
- Pharmaceutical manufacturing
- Hygienic storage tanks
- Mixing and batching vessels
- Ingredient and raw-material tanks
- CIP cleaning systems
- Hygienic liquid and solids level monitoring
- Small process vessels with limited installation space
Technical Highlights & Selection Considerations
- Measurement application: Confirm the medium and required measuring range.
- Radar technology: 80 GHz FMCW radar enables non-contacting measurement in compact vessels.
- Process connection: Standard G1-inch connection supports compatible hygienic adapters.
- Output and communication: Select 2-wire 4–20 mA HART® or 3-wire 4–20 mA and IO-Link as required.
- Switch output: Determine whether an additional switching signal is needed for level alarms.
- Cleaning requirements: Confirm compatibility with the site's CIP/SIP procedures and cleaning agents.
- Hygienic connections: Select the required Tri-Clamp, dairy coupling, VARIVENT® or other compatible adapter.
- Material compatibility: Verify wetted materials and seals against the product and cleaning chemicals.
- Approvals: Confirm the exact hygienic certifications required for the installation.
Frequently Asked Questions
Q1: What is the Rosemount 1408H used for?
It provides continuous, non-contacting level measurement in hygienic applications, especially in food, beverage and pharmaceutical production.
Q2: How does the Rosemount 1408H measure level?
It uses 80 GHz FMCW radar to detect the product surface and calculate the level without direct contact with the measured material.
Q3: Is the Rosemount 1408H suitable for CIP and SIP processes?
It is designed for hygienic installations and supports CIP/SIP-compatible processes. Verify the operating limits and cleaning requirements for the specific installation.
Q4: Which communication options are available?
The transmitter supports 2-wire 4–20 mA HART® or 3-wire 4–20 mA and IO-Link, depending on the selected version.
Q5: What hygienic certifications does it have?
Emerson lists 3-A®, FDA, EC 1935/2004 and EHEDG certifications. Confirm the applicable approval for the selected model and process connection.
Q6: What information should I provide when ordering?
Confirm the measured medium, measuring range, process connection adapter, output type, cleaning requirements, seal compatibility and required hygienic approvals.
