Chapter 5.
82
Model CTF878 Startup Guide
5.1.2
General System Specifications
5.1.2.1
Hardware Configuration
Channel Options:
Single channel.
Transducer / Preamplifier Options:
3”
North America gual box termination for all four transducers.
3”
ATEX gual box termination for all four transducers.
5.1.2.2
Package Options:
Standard: Epoxy-coated aluminum
Optional: Stainless Steel or Explosion-Proof.
5.1.2.3
Physical Characteristics
Standard Size: 14.24 x 11.4 x 5.12 in. (36.2 x 29 x 13 cm)
Standard Weight: 11 lb (5 kg)
5.1.2.4
Flow Range and Accuracy (% of reading)
Pipe Sizes
3” to 24” (80 mm to 610 mm) ANSI
Velocity Range for Acoustically Conductive Gases
Minimum Velocity = 3.6 ft/sec (1.1 m/s)
Maximum Velocity = 150 ft/sec (45.7 m/s)
Note:
The CTF878 requires flow to modulate the ultrasonic signal. The meter will go into error at velocities below
approximately 3.6 ft/sec, but will resume function if negative flow is established with velocities greater than
3.6 ft/sec in the reverse direction.
Velocity Accuracy
2% of reading
Repeatability
0.6%
Rangeability
43:1
Update Rate
2 Seconds
Response Time (to within 2% of final value)
25-45 Seconds
5.1.3
System Electronics Specifications
5.1.3.1
User Interface
Keypad
24-key, rubberized, tactile-membrane keypad
Display
240 x 200 pixel LCD graphical display w/ backlight
Summary of Contents for CTF878
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