Section 3: Installation

Reference, Installation, and Operations Manual

June 2013

3-9000-743 Rev S

 

 

For bi-directional flow, the minimum straight pipe length is as follows:

Table 3-5 Piping recommendations bi-directional flow

 

SeniorSonic

JuniorSonic

 

 

 

15D

(each direction) (with a flow conditioner)

20D (each direction)

 

 

 

20D

(each direction) (no flow conditioner)

 

 

 

 

The bore of the mating piping should be within 1% in order to comply with AGA9.

The meter is provided with dowel pins to align the meter body bore with the bore of the mating piping.

The SeniorSonicTM meter must be mounted in horizontal piping with the chord paths horizontal. The JuniorSonicTM meter body should be oriented so that the chord paths are oriented 45o off vertical.

EQUIPMENT HANDLINGObserve all precautionary signs posted on the equipment.

Failure to do so may result in injury to personnel or cause damage to the equipment.

Normally, the meter body is installed so that the electronics assembly is on the top of the meter. If there is insufficient space above the piping for this arrangement, the meter can be ordered with extra long transducer cables for remote mounting (JuniorSonicTM and SeniorSonicTM meters) or the meter housing can be installed with the electronics assembly on the bottom (SeniorSonicTM meters only).

Two pressure taps are provided on the meter for pressure measurement.

The mating piping should include temperature measurement connections located a minimum of two nominal pipe diameters length down stream of the meter.

If the meter body is not fitted with a means to vent line pressure, the down stream piping section should be provided with a vent valve to allow line pressure to be vented for maintenance.

52

Meter body installation