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FDT-25
Omega FDT-25 User Manual
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FDT-
25
Ha
ndheld
Ultrasonic
F
lowmeter
13
TOP
VIEW
OF
PIPE
Upstream
t
ransd
uce
r
Senso
rs
Spa
cing
Down
stream
transd
ucer
§2.8
.3
Z-metho
d
Installation
Z-meth
o
d
i
s
co
mmo
nly
us
ed
whe
n
the
pipe
diam
ete
r
i
s
b
etwe
en
30
0
millimeter
s
and
50
0
millime
ters
.
TOP
VIEW
OF
PIPE
Ups
tream
transd
ucer
Senso
rs
Spacing
Fl
ow
Down
str
eam
transd
ucer
§2.8
.4
W-me
tho
d
Installation
W-method
i
s
usu
ally
us
ed
on
plastic
pipes
wit
h
a
diameter
from
10
mill
imeters
t
o
100
mill
i
meters
TOP
VIEW
OF
PIPE
Upstream
t
ransd
ucer
S
ensors
S
pacing
Down
stream
tr
ansd
ucer
Fl
ow
Flow
16
18
Table of Contents
Default Chapter
3
Table of Contents
3
1 Introduction
5
Preface
5
Features
5
Principle Ofmeasurement
6
Partsidentification
7
Typicalapplications
9
Data Integrity and Built-In Time-Keeper
9
Product Identification
10
Specifications
10
2 Starting Measurement
11
Built-In Battery
11
Poweron
11
Keypad
12
Menuwindows
12
Menu Windows Arrangement
13
Steps to Configure the Parameters
14
Transducersmountingallocation
15
Transducersinstallation
16
1Transducersspacing
16
Methodinstallation
16
Z-Method Installation
17
W-Method Installation
17
N-Method Installation
18
Installationcheckup
18
Signalstrength
18
Signal Quality
18
Total Transit Time and Delta Time
18
4Timeratiobetweenthemeasuredtotal Transit Timeand the Calculatedtime
19
3 How to
20
How Tojudgeif Theinstrumentworksproperly
20
How to Judge the Liquid Flowing Direction
20
How to Change between Units Systems
20
How to Select a Required Flow Rate Unit
20
How to Use the Totalizer Multiplier
20
How to Open or Shut the Totalizers
20
How to Reset the Totalizers
20
How to Restore the Flow Meter with Default Setups
21
How to Use the Damper
21
How to Use the Zero-Cutoff Function
21
How to Setup a Zero Point
21
How to Get a Scale Factor for Calibration
21
How to Use the Operation Locker
21
How to Use the Built-In Data Logger
22
How to Use the Frequencyoutput
22
How to Use the Totalizer Pulse Output
22
How to Produce an Alarm Signal
23
How to Use the Built-In Buzzer
23
How to Use the OCT Output
23
How to Modify the Built-In Calendar
23
How to Adjust the LCD Contrast
24
How to Use the RS232 Serial Interface
24
How to View the Date Totalizers
24
How to Use the Working Timer
24
How to Use the Manual Totalizer
24
How to Check the ESN and Other Minor Details
24
How to Know How Long the Battery will Last
24
How to Charge the Built-In Battery
24
4 Menu Window Details
25
5 Troubleshooting
30
Power-On Error Displays and Counter-Measures
30
Error Code and Counter-Measures
31
Other Problems and Solutions
32
6 Communication Protocol
33
General
33
Interface Pin-Out Definition
33
The Protocol
33
Protocol Prefix Usage
34
Codes for the Keypad
35
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Omega FDT-25 Specifications
General
Brand
Omega
Model
FDT-25
Category
Measuring Instruments
Language
English
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