Emerson Rosemount 3308 Series Reference Manual page 142

Specifications and reference data
February 2020
Reference conditions are 70 °F (21 °C), and routing data for three additional network
devices.
A.1.2 Environment
Vibration resistance
No effect when tested per the requirements of IEC60770-1 (1999): High Vibration Level -
field or pipeline (10-60 Hz 0.21 mm displacement peak amplitude / 60-2000 Hz 3g).
Electromagnetic compatibility
• Meets EN 61326-1:2013, EN 61326-2-3:2013, and NE21:2012 if installed in metallic
vessels or still pipes.
• For optimal single lead probe performance in non-metallic tanks, the probe must be
mounted with a metal flange, or screwed in to a metal sheet (d > 14 in./350 mm) if a
threaded version is used.
Related information
Installation in non-metallic tanks and open-air applications
Pressure Equipment Directive (PED)
Complies with 2014/68/EU article 4.3
Radio approvals
• Radio Equipment Directive (RED) 2014/53/EU
• Part 15 of the FCC Rules
• Industry Canada RSS 211
A.1.3 Contamination/product build-up
• Single lead probes are preferred when there is a risk of contamination (because build-
up can result in the product bridging across the two leads for twin versions; between
the inner lead and outer pipe for the coaxial probe).
• For viscous or sticky applications, PTFE probes are recommended. Periodic cleaning
may also be required.
• For viscous or sticky applications, it is not recommended to use centering discs
mounted along the single lead probe.
• Signal Quality Metrics (option code DA1) can be used to determine when to clean the
probe. Transmitters equipped with the Diagnostics Suite option can calculate Signal
Quality Metrics.
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Reference Manual
00809-0100-4308
Rosemount 3308 Series