Sierra FLAT-TRAKTM 780S User Manual
Series 780S Instruction Manual
Appendix A Specifications
IM-78S-B
A-1
Appendix A
Product Specifications
Performance Specifications
Accuracy
± 2% of reading from 10 to 100% of calibrated range
± 0.5% of full scale below 10% of calibrated range
± 0.5% of full scale below 10% of calibrated range
Repeatability
± 0.2% of full scale
Temperature Coefficient
± 0.02% of reading per °F within ± 50°F of customer specified conditions
± 0.03% of reading per °F within ± 50°F to 100°F of customer specified conditions
±0.04% of reading per °C within ± 25°C of customer specified conditions
±0.06% of reading per °C within ± 25°C to 50°C of customer specified conditions
± 0.03% of reading per °F within ± 50°F to 100°F of customer specified conditions
±0.04% of reading per °C within ± 25°C of customer specified conditions
±0.06% of reading per °C within ± 25°C to 50°C of customer specified conditions
Pressure Coefficient
Negligible when within ± 50 psig (± 3.4 barg) of customer specified conditions
Response Time
One second to 63% of final velocity value
Operating Specifications
Gases
Most gases compatible with 316L stainless steel (consult factory)
Mass Flow Rates
Air Flow Ranges
(1)
Pipe Size
Minimum
Maximum
(2) (3)
scfm
(nm
3
/hr)
scfm
(nm
3
/hr)
1/4-inch
0–0.5
(0–0.7)
0–9
(0–14)
1/2-inch
0–2
(0–3.0)
0–40
(0–60)
3/4-inch
0–4
(0–5.9)
0–75
(0–120)
1-inch
0–6
(0–8.9)
0–120
(0–180)
1 1/2-inch
0–15
(0–22)
0–280
(0–440)
2-inch
0–23
(0–33)
0–470
(0–680)
3-inch
0–50
(0–74)
0–1000
(0–1500)
4-inch
0–90
(0–130)
0–1800
(0–2700)
6-inch
0–200
(0–300)
0–4000
(0–5900)
8-inch
0–350
(0–520)
0–7000
(0–10,000)
Notes:
(1) Flow rates for air and nitrogen. Standard conditions: 70°F
and one atmosphere for scfm; 0°C and one atmosphere for
nm
and one atmosphere for scfm; 0°C and one atmosphere for
nm
3
/hr. Consult factory for other gases.
(2) Higher flow ranges available, consult factory.
(3) Maximum flow rates are limited for hazardous area
and high temperature versions, consult factory.
(3) Maximum flow rates are limited for hazardous area
and high temperature versions, consult factory.
Dual Calibration
User-selectable dual ranges or two different gases
Gas Pressure
150 lb flange or PN16 DIN (–40° F to 100° F): 230 psig (15.9 barg) maximum
150 lb flange or PN16 DIN (250° F): 185 psig (12.8 barg) maximum
150 lb flange or PN16 DIN (450° F): 155 psig (10.7 barg) maximum
NPT (–40° F to 450° F): 500 psig (34 barg) maximum, 5 to 150 psig
(0.3 barg to 10 barg) optimum
150 lb flange or PN16 DIN (250° F): 185 psig (12.8 barg) maximum
150 lb flange or PN16 DIN (450° F): 155 psig (10.7 barg) maximum
NPT (–40° F to 450° F): 500 psig (34 barg) maximum, 5 to 150 psig
(0.3 barg to 10 barg) optimum
Gas & Ambient Temperature Gas...............–40° to 250°F (–40° to 120°C) Optional –40° F to 450° F
(–40° C to 230° C) not available on 1/4 and 1/2-inch flow bodies
Ambient........–5° to 120°F (–20° to 50°C)
Ambient........–5° to 120°F (–20° to 50°C)