Emerson Process Management 3422 User Manual

Page of 398
 Reference, Installation, and Operations Manual
Section 3: Installation
3-9000-743 Rev S
June 2013
Mechanical installation
 51
3.3
Mechanical installation
The Daniel Ultrasonic Gas Flow Meters are assembled, configured, and tested at the factory. The 
meter assembly includes the transmitter electronics, base unit and the meter body with the 
transducer s and cable assemblies.
Figure 3-7  Daniel Ultrasonic Gas meter body 
3.3.1
Meter body installation
Refer to the Daniel Gas Ultrasonic Meter Product Data Sheet 
(Daniel P/N DAN-USM-FAMILY-DS-0306) for piping information. The SeniorSonic and JuniorSonic 
Ultrasonic Meter Datasheet
 may be downloaded from the Daniel website:
For uni-directional flow, the minimum straight pipe length is as follows:
Table 3-4  Piping recommendations uni-directional flow
SeniorSonic
JuniorSonic
15D up stream (with a flow conditioner)
20D up stream
20D up stream (no flow conditioner)
5D down stream
5D down stream