ST110A Mass Flow Meter

Measuring Capability
ST1XXA Models: Flow rate, total flow and temperature 
STP1XXA Models: Flow rate, total flow, temperature and pressure
Basic Styles
ST100A: Insertion, single-point
ST100AL: In-line (spool piece), single-point
ST102AA: Insertion, dual-element averaging system
ST110A: Insertion, single-point with VeriCal™ capability
ST112AA: Insertion, dual-element averaging system with VeriCal™ capability
STP100A: Insertion, single-point with pressure measurement
STP110A: Insertion, single-point with pressure measurement and VeriCal™ capability

Flow Measurement Range
Insertion Style: 0.25 SFPS to 1000 SFPS [0,07 NMPS to 305 NMPS]
ST100AL In-line: 0.0062 SCFM to 838 SCFM [0.01 Nm3/h to 1425 Nm3/h]
Air at standard conditions; 70°F psia and 14.7 psia [0°C and 1,01325 bar (a)]
Temperature Measurement Range
Up to 850°F [454°C] commensurate with element; see Operating Temperature in Flow Element specification
Pressure Measurement Range (STP Models)
Available Ranges:
0 psig to 50 psig [0 bar (g) to 3,4 bar (g)]
0 psig to 160 psig [0 bar (g) to 11 bar (g)]
0 psig to 500 psig [0 bar (g) to 34 bar (g)
0 psig to 1000 psig 0 bar (g) to 70 bar (g)]
Media: all gases that are compatible with the flow element materials
Accuracy:
Flow: ± 0.75% reading, ± 0.5% full scale
Temperature: ± 2 °F [± 1,1 °C] (display only, flow rate must be greater than 5 AFPS [1,5 m/sec])
Pressure (STP Models): ± 1.0% of span
Temperature Coefficient
With optional temperature compensation; valid from 10% to 100% of full scale calibration
Flow: Maximum ± 0.015% of reading / °F up to 850°F [± 0.03% of reading / °C up to 454°C]
Repeatability
Flow: ± 0.5% reading
Temperature: ± 1 °F [± 1°C] (flow rate must be greater than 5 AFPS [1,5 NMPS])
Pressure (STP Models): ≤ 0.1% of span
Response Time (Flow):  1 sec. to 63% of final value (1 step change) typical with -FP or -FPC type flow element and AST electronics.
Turndown Ratio
Normally factory set and field adjustable from 2:1 to 100:1 within calibrated flow range; up to 1000:1 possible with factory evaluation of application
Temperature Compensation
Standard: ± 30°F [± 16°C]
Optional: ± 100°F [± 55°C]
Calibration: Performed on flow stands using equipment traceable to NIST and ISO/IEC 17025
Agency Approvals:
FM/FMc:    Class I, Division 1, Explosion proof, Groups B,C,D
Class II/III, Division 1, Dust ignition proof, Groups E,F,G
Class I, Division 2, Nonincendive, Groups A,B,C,D
Class II, Division 2, Nonincendive, Groups E,F,G
Class III, Division 1,2, Dust ignition proof, indoor/outdoor Hazardous (Classified) locations
Type 4x/IP67 (per NEC 500)
ATEX:    EX d IIC Gb T6/T1 Ta= -40°C TO 65°C
Ex tb IIIC T85°C/T450°C Db Ta= -40°C TO 65°C, IP67
IECEx:
(ECSA EQM Ex.)    II 2 G Ex d IIC Gb T6/T1 Ta= -40°C TO 65°C, IP67
Other:    NEPSI, EAC/TR CU, Kazakh MPA (Kazakhstan), CRN, Inmetro, CPA, EQM/ECAS, UKCA(UKEX) CE Marking
Complies with Canadian Electrical code requirements of ANSI / ISA 12.27.01-2011 as a single seal device.
Ex-rated pressure transducer STP models:

FM/CSA:    Class 1, Division 1, Groups A,B,C,D
Dust ignition proof for Class 1, Division 1, Groups E,F,G
ATEX:    2 G Ex d C T4, Ex d IIC T5, Ex d IIC T6

Flow Element
Material of Construction
All-welded 316L stainless steel; optional Hastelloy-C276
Operating Pressure
 Insertion Types
 ST Models
 Metal ferrule: 1000 psig [70 bar (g)]
 Teflon ferrule: 150 psig [10 bar (g)] (200°F [93°C] maximum)
 Fixed Connection NPT: 1000 psig [70 bar (g)]
 Fixed Connection Flanged: per flange rating
 STP Models: per above or pressure sensor rating, whichever is less 
 Inline Type (Model ST100AL): 1000 psig [70 bar (g)]
Operating Temperature (Process)
ST100A, ST102AA Insertion Style
All Flow Elements (– FPC, – FP and – S):
-40°F to 350°F [-40°C to 177°C]
-40°F to 500°F [-40°C to 260°C]
-40°F to 850°F [-40°C to 454°C]
ST110A, ST112AA Insertion Style
– FP Style Flow Element:
-40°F to 350°F [-40°C to 177°C]
-40°F to 500°F [-40°C to 260°C]
STP Series Insertion Style
– FP Style Flow Element:
Standard Pressure Sensor: -32°F to 176°F [0°C to 80°C]
Ex-rated Pressure Sensor: -22°F to 212°F [-30°C to 100°C]
ST100AL In-line Style
– FP and – S Style Flow Element:
-40°F to 250°F [-40°C to 121°C]
Process Connection:
Compression Fittings Models ST100A and ST102AA only
3/4" or 1" MNPT, stainless steel with adjustable Teflon ferrule or metal ferrule; or flanged tapped and threaded for 3/4" fitting, ANSI or DIN flanges.
Compression fittings not available with 850°F [454°C] temperature versions of ST100A or ST102AA
Low pressure 50 psig [3,5 bar (g)] or medium pressure 500 psig [34 bar (g)] with graphite or Teflon packing material; 1 1/4" MNPT or ANSI or DIN flange
Teflon packing required when process media is ozone, chlorine or bromine.
Remote configuration required with medium pressure packing gland.
Fixed Fittings / All Welded
1" male NPT or ANSI or DIN flange
Insertion Length:
Field adjustable lengths:
1" to 6" [25 mm to 152 mm]
1" to 12" [25 mm to 305 mm]
1" to 21" [25 mm to 533 mm]
1" to 36"