GE DigitalFlow GS868, Руководство для стартапов

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Specifications 4-1
March 2008
General
The general specifications for the Model GS868 flowmeter are
divided into the following categories:
Hardware Configuration
Package Options:
Epoxy-coated aluminum (standard)
Stainless steel
Explosion-proof
Physical:
Size: 14.24
×
11.4
×
5.12 in. (36.2
×
29
×
13 cm)
Weight: 11 lb (5 kg)
Environmental
Operating Temperature:
-4° to 131°F (–20° to 55°C)
Storage Temperature:
–67° to 167°F (–55° to 75°C)
Flow Accuracy
% of Reading:
±
1% to 2% of reading typical
Note:
Accuracy depends on pipe size and whether measurement is 1-
path or 2-path. Accuracy to ±0.5% of reading may be
achievable with process calibration.
Range
Bidirectional:
–150 to –0.1 ft/s (–46 to –0.03 m/s)
0.1 to 150 ft/s (0.03 to 46 m/s)
Rangeability (Overall)
1500:1
Repeatability ±
0.2 to
±
0.5%
Note:
Specifications assume a fully developed flow profile (typically
20 diameters upstream and 10 diameters downstream of
straight pipe run) and flow velocity greater than 3 ft/s (1 m/s).
Response Time
For a 0–90% Step Change:
3 seconds to within 1% of final value