Справочник Пользователя для Emerson Process Management 3420

June 2013

3-9000-743 Rev S

2.3.5

Flange types

The meter body is available with raised face or ring-type joint flange.

2.3.6

Gas temperature range

The gas temperature ranges for the standard T-11, T-12, T-21 and T-22 transducers are as show 
in 

Temperatures below -20 °C may damage the transducers. In no-flow conditions for extended 
lengths of time or during meter storage, you should remove all transducer pairs if the 
temperature range is expected to exceed these limits.

Consult Daniel for higher temperature applications.

2.3.7

Repeatability

Repeatability precision is ±0.2% of reading in the specified velocity range for SeniorSonic

TM 

Meters.

2.3.8

Accuracy limits

SeniorSonic

TM 

accuracy limits typically are:

•

AGA 9 compliant

•

± 1% without a flow calibration (10” and smaller)
± 0.7% without a flow calibration (for 12” and larger)

•

± 0.1% with a flow calibration

•

JuniorSonic

TM 

accuracy limits typically are:

–

± 2% without a flow calibration

T-11

-20 °C to +100 °C (-4 °F to

 

212 °F)

Standard mounts/Holders, NBR O-ring
Inconel mounts/316L Holders, NBR O-ring
Inconel Mounts/Inconel Holders/FKM O-ring

T-12

-20 °C to +100 °C (-4 °F

 

to

 

212 °F)

Standard mounts/Holders, NBR O-ring
Inconel mounts/316L Holders, NBR O-ring
Inconel Mounts/Inconel Holders/FKM O-ring

T-21

1

-20 °C to +100 °C (-4 °F

 

to

 

212 °F)

Standard mounts/Holders, NBR O-ring
Inconel mounts/316L Holders, NBR O-ring
Inconel Mounts/Inconel Holders/FKM O-ring

T-22

2

-50 °C to +100 °C (-58°F to

 

212 °F)

Standard mounts/Holders, NBR O-ring
Inconel mounts/316L Holders, NBR O-ring
Inconel Mounts/Inconel Holders/FKM O-ring

1.

 T-21 transducers use W-01 transformers

2.

 T-22 transducers use W-02 transformers