Toshiba LF494 Manuals

Manuals and User Guides for Toshiba LF494. We have 2 Toshiba LF494 manuals available for free PDF download: Instruction Manual, User Manual

Toshiba LF494 Instruction Manual (157 pages)

Electromagnetic Flowmeter

Brand: Toshiba | Category: Plumbing Product | Size: 1.75 MB

Safety Precautions
3
Safety Precautions for Installation and Wiring
4
Safety Precautions for Maintenance and Inspection
5
Handling Precautions
6
Contents
8
Product Inspection and Storage
10
Product Features
11
Names of Parts
12
Outline Drawing
12
Terminal Board of LF404 Converter
13
Control Switch or Keys of LF404 Converter
14
Safety Precautions for Installation
15
Location
16
Mounting Procedure
17
Pipe Checks
17
Pipe Leaning
17
Installation Procedure
18
LF494/LF404 Flowmeter Piping Connections
18
Piping Connections
19
Required Straight Pipe Length on the Upstream Side
19
Pipe Orientation
20
Detector Piping Orientation
20
Installation Position of the Detector
20
Flow Direction
21
Preventing an Empty Arrow on the Detector
21
Detector with an Upright Pipe Run at Downstream Outlet
21
Detector with Sufficient Head Pressure at Downstream Outlet
21
Supporting Pipe
22
Example of Pipe Fixing Procedure
22
Model Diagram of Unsupported Pipes
22
Grounding
23
Wiring
24
Cables
26
External Device Connections and Grounding
26
Terminal Block Connections
26
Digital I/O Connections
28
Electromagnetic Counter Connection Example
28
Wiring Procedure
29
Cable Termination
29
Cable Connections
30
Terminal Board Connections
30
Operation
31
Preparatory Check
31
Zero Adjustment
32
LCD Display and Controls
33
LF404 Converter with LCD Display
33
Control Keys
34
Display Format
35
Basic Operations
37
Mode Change
37
Change Mode Flow
38
Configuration Parameter Selection in Setting and Calibration Modes
39
To Select the Desired Item
39
To Change the Setting Value
40
To Return the Measurement Value
41
Converter for Special Specifications
42
Configuration Items Selection Table
43
Password Input
44
Configuration Parameter Setting
45
Configuration Items
45
Checking or Changing Parameters
46
Excitation Current
46
To Change the Excitation Current Setting Value
47
Meter Size
48
To Change the Meter Size
49
Excitation Frequency
50
To Change the Excitation Frequency
51
Indicating Unit
52
To Check the Indicating Units
53
To Change the Indicating Units
54
Span
56
Range Type
56
Unit of Span
58
Hysteresis
59
To Check each Constant
60
To Change the Range Type
61
To Change the Span (Range)
62
To Change the Hysteresis
63
Damping Constant
64
To Change the Damping Constant
65
Low Cutoff
66
To Change the Low Cutoff Value
67
Digital I/O
69
Digital Output Functions
69
Digital Input Function
69
Digital Output Active Status
70
Digital Input Detective Level
70
To Check the Digital I/O Functions
70
To Change the Digital I/O Functions
71
Counting Rate (Pulse Rate)
72
To Check the Counting Rate and Pulse Width
72
To Change the Counting Rate
74
Preset Count Value
75
To Change Preset Count Value
76
High and Low Limit Alarms
77
To Check the High and Low Limit Values
77
To Change the High/Low Limit Alarm Status and Its Alarm Limit Value
78
To Change the High/Low Limit Value
79
Empty Pipe Alarm
80
To Check the Empty Pipe Alarm Enable/Disable Status
80
To Change the Empty Pipe Alarm Enable/Disable Status
81
Rate-Of-Change Limit
83
To Check the Rate-Of-Change Limit Value and the Control Limit Time
84
To Change the Rate-Of-Change Limit Value
85
Fixed-Value Output
86
To Check the Enable/Disable Status of the Fixed-Valve Output and Its Output Values
87
To Change the Enable/Disable Status of the Fixed-Valve Output and Its Output Values
88
To Change the Fixed Pulse Output Value
89
Zero Offset Adjustment
90
To Check/Change the Zero Offset Value
90
Password
92
In Case of Forgetting Password
94
4-20Ma Alarm Output
96
To Change the 4-20Ma Alarm Output Functions
97
DI Detective Level
98
To Check the DI Detective Level
98
To Change the DI Detective Level
99
Preset Function
100
Preset Point Output Functions
100
To Check the Preset Functions
100
To Change the Preset Functions
101
Calibration Items
102
Calibration Using Converter Signal Source
103
0% Flow Rate Calibration
103
To Check/Change the Zero Point of Flow Measurement
103
50% Flow Rate Calibration
104
100% Flow Rate (Span) Calibration
105
Checking the Excitation Current Valve
106
Digital I/O Functions
107
Digital I/O Specifications
108
Totalizer and Pulse Output
109
Totalizer Operation
112
Using Control Keys on the Panel
112
Using the Optional DI Signal
113
Multi-Range Functions
114
Output Performance of Multi-Range Functions
115
Automatic Selection of Unidirectional Flow Multi-Range
115
Automatic Selection of Bidirectional Flow Multi-Range
116
Remote Selection of Unidirectional Flow with an External Signal
117
Remote Selection of Bidirectional Flows Multi-Range with an External Signal
118
High and Low Limit Alarm Output Performance
120
Signal Range Performance, Multi Range Performance
120
Output Conditions When an Empty Pipe Alarm Occurs
121
Preset Point Output
122
Preset Point Output Performance
123
Start Signal Requirements
126
Remote Selection of Fixed Value Output
127
Converter Failure Alarm
128
Communications Function
129
Connections with the AF100 Terminal
129
Connections to the Current Output Line
129
Communications Procedure
130
Cautionary Notes on Communications
131
Filter Connection Example
131
Self-Diagnostics and Alarms
132
Converter Hardware Failure
134
Output Status for Errors and Alarms
135
Maintenance and Troubleshooting
136
Safety Precaution for Maintenance and Troubleshooting
136
Maintenance: Calibration
137
Maintenance: Fuse
137
Maintenance: LCD Display
137
Maintenance: Power Supply Unit
137
Cleaning the Pipe Wall Inside of Detector
138
Maintenance Parts
139
Operative Life
139
Flow Rate Is Not Indicated
140
Flow Rate Is Not Correct
141
Flow Rate Indication Is Not Stable
142
Principle of Operation
143
Specifications
144
Type Specification Code
149
Type Specification Code Maintenance Parts
150
Outline Dimensions
152
Electromagnetic Compatibility and Low Voltage Safety
153

Toshiba LF494 User Manual (17 pages)

Field Intelligent Device Series Sanitary Electromagnetic Flowmeter

Brand: Toshiba | Category: Measuring Instruments | Size: 0.63 MB

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Toshiba LF494 Instruction Manual (157 pages)

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Toshiba LF494 User Manual (17 pages)

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