DigitalFlow™ GF868 Startup Guide (1 and 2-Channel) 41
Chapter 4. Specifications
Chapter 4. Specifications
4.1 General Specifications
The general specifications for the Model GF868 flowmeter are divided into the following categories:
4.1.1 Hardware Configuration
Package Options:
Epoxy-coated aluminum (standard)
Stainless steel (optional)
Fiberglass (optional)
Explosion-proof (optional)
Flameproof (optional)
Physical: (Epoxy-coated aluminum package)
Size: 14.24 11.4 5.12 in. (36.2 29 13 cm)
Weight: 11 lb (5 kg)
4.1.2 Environmental
Operating Temperature:
-4° to 131°F (–20° to 55°C)
Storage Temperature:
–67° to 167°F (–55° to 75°C)
4.1.3 Flow Accuracy (% of Reading)
Velocity Accuracy:
1-Path Measurement
2% to 5% of reading at ±1 to ±275 ft/s (±0.3 to ±85 m/s)
2-Path Measurement
1.4% to 3.5% of reading at ±1 to ±275 ft/s (±0.3 to ±85 m/s)
Note: Specifications assume a fully developed flow profile. This is installation-dependent and may require a straight
run of pipe 20 diameters upstream and 10 diameters downstream. Accuracy depends on whether measurement
is 1- or 2-path.
4.1.4 Range
Bi-directional:
–275 to –0.1 ft/s (–85 to –0.03 m/s)
+0.1 to 275 ft/s (0.03 to 85 m/s)
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