Reference Manual
Table Of Contents
- Rosemount 1408H Level Transmitter
- Contents
- 1 Introduction
- 2 Transmitter overview
- 3 Mechanical installation
- 3.1 Safety messages
- 3.2 Installation considerations
- 3.3 Mounting preparations
- 3.4 Mount transmitter on tank
- 4 Electrical installation
- 5 Configuration
- 6 Operation and maintenance
- 7 Service and troubleshooting
- 7.1 Safety messages
- 7.2 Diagnostic messages
- 7.2.1 Device hardware fault – Device exchange
- 7.2.2 General power supply fault – Check availability
- 7.2.3 Device software fault – Check firmware revision
- 7.2.4 Parameter error – Check data sheet and values
- 7.2.5 Short circuit – Check installation
- 7.2.6 Device memory failure – Restore default settings
- 7.2.7 Level measurement lost – Check application
- 7.2.8 Simulation active – Check operational mode
- 7.2.9 Device temperature over-run – Clear source of heat
- 7.2.10 Device temperature under-run – Insulate device
- 7.2.11 Primary supply voltage over-run – Check tolerance
- 7.2.12 Primary supply voltage under-run – Check tolerance
- 7.2.13 Maintenance required - Cleaning
- 7.3 Troubleshooting incorrect level readings
- 7.3.1 Reported level is too high or low
- 7.3.2 Level is stuck in measuring range
- 7.3.3 Level is stuck in full tank
- 7.3.4 Level value drops when close to antenna
- 7.3.5 Measured level fluctuates
- 7.3.6 Measured level is occasionally unstable
- 7.3.7 Lagging of measured level
- 7.3.8 Incorrect level at 100% (20 mA)
- 7.3.9 Incorrect level when product surface is above 50%
- 7.3.10 Dropping of level close to tank bottom
- 7.3.11 Level measurement is lost in an empty tank
- 7.3.12 Alarm mode close to tank bottom
- 7.4 Managing disturbance echoes
- 7.5 Service and troubleshooting tools
- 7.6 Service support
- A Specifications and reference data
- A.1 Performance specifications
- A.2 Functional specifications
- A.3 Physical specifications
- A.4 Dimensional drawings
- B Product certifications
- C Configuration parameters
3.2.7 Mounting onto a threaded connection
Refer to Figure 3-6 for the required thread engagement length at the customer G1 process
connection.
Figure 3-6: Thread Engagement Length
A
A. 0.32 to 0.63 in. (8 to 16 mm)
Related information
Dimensional drawings
3.2.8 Instructions for hygienic installations
To conform with applicable hygienic standards and food and beverage legislation and
regulations, the Rosemount 1408H must be:
• Installed in a closed tank.
• Installed with hygienic adapter and O-ring.
It is the responsibility of the user to ensure:
• The materials listed in Materials of construction are suitable for the media and
cleaning/sanitizing processes.
• The installation of the transmitter is drainable and cleanable.
• That the joint/clamping between the transmitter and the nozzle is compatible with the
tank pressure and media.
• That for the application a suitable M12 connector is used and with appropriate ingress
protection.
Related information
Materials of construction
Specific requirements for 3-A
®
• The hygienic adapter must be 3-A certified and approved for use with the transmitter.
• Fittings and connections must comply with the requirements of 3-A Sanitary Standard
63-.
• On the “product contact side”, correct gasket variants shall be used and be made of 3-
A compliant product contact material.
Mechanical installation Reference Manual
September 2020 00809-0100-4480
18 Rosemount 1408H Level Transmitter