INF-TN1FSH-E
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8.2. Specifications
Operational specifications
System configuration:
The system is composed of one/two detectors (Model: FSW) and
one Flow transmitter (Model: FSH), realizing single-path/two-path
measurement.
Hybrid mode or transit time mode is selectable.
In case of hybrid mode, either Pulse Doppler method or transit time
method is automatically selected depending on conditions of
measured liquid and magnitude of velocity.
Application:
Uniform liquid in which ultrasonic waves can propagate.
Air bubble quantity:
Pulse Doppler method: 0.02 to 15% of volume at 1 m/s
Transit time method: 0 to 12% of volume at 1 m/s
Fluid temperature:
–40 to +100ºC (FSW12), –40 to 80ºC (FSW21, FSW40,
FSW50)
Type of flow:
Pulse Doppler method: axisymmetric flow in a filled pipe.
Transit time method: well-developed turbulent or laminar
flow in a filled pipe.
Applicable flow pipe:
Material: Plastics (PVC, FRP, etc.) or Metals (carbon steel, SS,
copper, aluminum, etc.)
Pipe size: 40 to 1000 mm (inside diameter)
Liner:
Tar epoxy, mortar, etc.
Straight pipe length:
Typically 10D for upstream and 5D for downstream. Refer to
JEMIS-032 in detail.
(Note) JEMIS: Japan Electric Measuring Instruments
Manufactures' Associations Standard
Velocity:
Hybrid mode: 0 to ±0.3 --- ±Maximum Velocity (depending on pipe
diameter)
(Note) For maximum measurement range in Hybrid mode, refer
to the next page.
Transit time mode: 0 to ±0.3 --- ±32 m/s
Power supply:
100 to 240 Vac+10%/–15%, 50/60Hz or 20 to 30 Vdc
Signal cable:
Single-path system :
A pair of RF co-axial cables for ultrasound signals and a
three-core shield cable for temperature sensor,
Two-path system:
Two pairs of RF co-axial cables for ultrasound signals and a
three-core shield cable for temperature sensor,
Maximum cable length: 150m
Temperature range: 80ºC
Environment:
Non-explosive environment without direct sunlight, corrosive gas and
heat radiation
Ambient temperature:
–10 to +50ºC for flow transmitter, –20 to +80ºC for detector
Ambient humidity:
95%RH or less for flow transmitter, 100%RH or less for detector
Grounding:
Class D (less than 100 ohm)
Arrester:
Surge absorbers for outputs and power supply incorporated as
standard
Performance specifications
Accuracy:
Pulse Doppler method:
Pipe size (inside diameter)
and detector
Velocity Accuracy
1.5 m/s to Max.
Velocity (Note)
±1.0% of rate
φ
40mm to
φ
50mm or less
(Detector: FSWS12)
0 m/s to 1.5 m/s
±0.015m/s
1.5 m/s to Max.
Velocity (Note)
±0.5% of rate
φ
50mm to
φ
200mm
(Detector: FSWS12)
0 m/s to 1.5 m/s
±0.0075m/s
1 m/s to Max.
Velocity (Note)
±1.0% of rate
φ
100mm to
φ
1000mm
(Detector: FSWS21, 40, 50)
0 m/s to 1 m/s
±0.01m/s
(Note) Maximum velocity is depend on a pipe diameter.
For maximum measurement range in Hybrid mode, refer to
the next page.
Transit time method:
Pipe size (inside diameter)
Velocity
Accuracy
2 m/s to 32 m/s
±1.5% of rate
φ
40mm to
φ
50mm or less
0 m/s to 2 m/s
±0.03m/s
2 m/s to 32 m/s
±1.0% of rate
φ
50mm to
φ
300mm or less
0 m/s to 2 m/s
±0.02m/s
1 m/s to 32 m/s
±1.0% of rate
φ
300mm to
φ
1000mm
0 m/s to 1 m/s
±0.01m/s
Response time:
Pulse Doppler method: 0.2 sec
(depending on pipe diameter and measuring condition)
Transit time method: 0.5 sec
Power consumption:
20 W or less
Short-term thermal stability:
140ºC, 30 min (FSWS12),
100ºC, 30 min (FSWS21, FSWS40, FSWS50)
Functional specifications
Analog output:
4 to 20 mAdc (1 point)
Max. load resistance: 1 k ohm
Digital output:
+total, –total, alarm, acting range, flow switch or total switch --
arbitrarily selectable
Mechanical relay contact:
1 point with socket (replaceable)
Normally closed/open selectable
Capacity:
240 Vac/30 Vdc, 1 A
Total pulse: less than 1 p/s
(Pulse width: 50, 100 or 200 ms selectable)
Transistor open collector: 2 points
Capacity:
30 Vdc, 0.1 A
Normally off/on selectable
Total pulse: less than 1000 p/s (Pulse width: 0.5, 1, 2, 5, 10, 20,
50, 100 or 200 ms selectable)
Communication interface:
RS-232C equivalent / RS-485 (selectable)
Number of connectable units: one (RS-232C)/up to 31 (RS-485)
Baud rate: 9600/19200/38400 bps selectable
Parity: none/odd/even selectable
Stop bit: 1 or 2 bits selectable
Distance: up to 15 m (RS-232C)/up to 1k m (RS-485)
Data: velocity, flow rate, +total, –total, status (standard), velocity
profile (option)
Display device:
Graphic LCD (number of pixels: 240
×
64) with back light
Display language:
Japanese, English, French, German or Spanish selectable
Velocity/Flow rate display:
Display of velocity and/or flow rate with flow direction
Data: up to 10 digits (decimal point to be counted as 1 digit)
Unit: Metric/English system selectable
Metric system
English system
Velocity m/s
ft/s
Flow rate
L/s, L/min, L/h, L/d, kL/h,
ML/d, m
3
/s, m
3
/min, m
3
/h,
m
3
/d, km
3
/d, Mm
3
/d, BBL/s,
BBL/min, BBL/h, kBBL/d,
MBBL/d
ft
3
/s, ft
3
/min, ft
3
/h, Mft
3
/d,
gal/s, gal/min, gal/h,
Mgal/d, BBL/s, BBL/min,
BBL/h, BBL/d, kBBL/d,
MBBL/d
Note: “gal” means US gal.
Total display:
Display of forward or reverse total
Data: up to 10 digits (decimal point to be counted as 1 digit)
Unit: Metric/English system selectable
Metric system
English system
Total
mL, L, m
3
, km
3
. Mm
3
,
mBBL, BBL, kBBL
ft
3
, kft
3
, Mft
3
, gal, kgal,
mBBL, BBL, kBBL, ACRf
Configuration:
Fully configurable on keyboard by menu-driven software
Zero adjustment:
Set zero/Clear available. (transit time method)
Damping:
0 to l00 s (every 0.1 s) configurable for analog output and display
Low flow cut off:
0 to 5 m/s configurable
Alarm:
Hardware fault/process fault can be tied to digital output
Burnout:
Analog output: Hold/Upper limit/Lower liinit/Zero/Not-used selectable
Total: Hold/Count selectable
Timer: 0 to 900 s (every 1 s) configurable
