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24 Flange types
Section 2: Product overview Reference, Installation, and Operations Manual
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 Tabl e 2- 2.
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
Table 2-2 Temperature ranges for transducers, mounts and holders
Transducer type Temperature range Mount and holder type
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