Toshiba LF502 Electromagnetic Flowmeter Manuals

Manuals and User Guides for Toshiba LF502 Electromagnetic Flowmeter. We have 1 Toshiba LF502 Electromagnetic Flowmeter manual available for free PDF download: Instruction Manual

Toshiba LF502 Instruction Manual (111 pages)

Electromagnetic Flowmeter for partially filled pipes

Brand: Toshiba | Category: Plumbing Product | Size: 4.65 MB

Safety Precautions
3
Table of Contents
8
Production Inspection and Storage
10
Overview
11
Features
11
Names of Parts
12
View of Detector
12
View of Converter
13
Internal Details of Converter
14
Installation
15
Location
16
Mounting Procedure
17
Flange Connection
19
Applying Bolt Sizes, Numbers, Recommendable Torque Value and Flange, Detector Diameter
19
Installing Detector on Manhole
20
Warnings for Detector Installation
21
Installing Pipe Section on Forward/Reverse Direction of Detector
21
Locate Electrode of Detector Exactly under the Pipe
21
Arrow Board in Detector
22
Adjust Flow Level
22
Installing Converter on Panel and Wall
23
Grounding
24
Wiring
25
Cables
26
External Device Connections and Grounding
27
Terminal Block Connections
27
Digital I/O Connections
28
Example of Electromagnetic Counter Connection
28
Wiring Procedure
29
Cable Termination
29
Signal Cable Processing
29
Untying Shields from Cables
29
Excitation Cable
30
Other Cables (Power Cable and Output Cable)
30
Termination of Cables
30
Cabling Procedure
31
Connecting Cable to Terminal Measurement
31
Cable Clamping
32
Converter Cover Installation
32
Operation
33
Preparatory Check
33
Zero Adjustment
34
Measurement Mode Display
35
Display Format
35
Measured Value Display Format
35
Flow Velocity
35
Totalized Flow by Incremental Counter
36
Totalized Flow Indicated by the Measuring Unit
36
% Display
36
Panel Operation
37
Names and Functions of Operation Panel
37
LED Display
37
Liquid Crystal Display
37
Key Switches
38
Basic Operations
39
Mode Change
39
Setting Items Selection
40
Checking or Changing Parameters
41
To Check the Meter Size and Excitation Frequency
42
To Check the Measuring Units
43
Span (Range)
45
Unit of Span
45
Range Type
46
Hysteresis
46
The Setting Sequence
46
To Change the Span (Range)
48
To Change the Hysteresis
49
To Change the Range Type
49
To Check the Damping Constant
50
To Change the Damping Constant
50
Counting Rate (Pulse Rate)
51
To Check the Counting Rate and Pulse Width
51
To Change the Counting Rate and Pulse Width
52
Low Cutoff
53
To Check the Low Cutoff Value
53
To Change the Low Cutoff Value
53
High and Low Limit Alarms
54
To Check the High and Low Limit Values
54
To Change the High and Low Limit Values
55
To Check the Empty Pipe Alarm Enable/Disable Status
56
To Change the Empty Pipe Alarm Enable/Disable Status
56
To Check the Rate-Of-Change Limit Value and the Control Limit Time
57
To Check the Preset Count Value
59
To Change the Preset Count Value
59
To Check the Exciting Current Value
60
To Change the Exciting Current Value
60
Digital Output Functions
61
Digital Input Functions
61
To Check the Digital I/O Functions
62
To Change the Digital I/O Functions
62
To Check the Enable/Disable Status of the Fixed-Value Output and Its Output Values
63
To Check the Zero Offset Value
65
To Change the Zero Offset Value
65
Calibration
67
To Check the Zero, Span and Exciting Current
67
To Change the Zero and Span of the Converter
68
Reference Voltage Check Pins and a Trimmer
69
Digital I/O Functions
70
Digital I/O Specifications
71
Totalized Flow Counter and Pulse Output
72
Totalized Flow Counter Operation
73
Using Key Switches on the Panel
73
Using a Remote DI Signal
73
Multi-Range Functions
74
Output Performance of Multi-Range Functions
75
Automatic Selection of Unidirectional Flow Multi-Range
75
Automatic Selection of Bidirectional Flows Multi-Range
76
Reverse to Forward Direction Change
76
Forward to Reverse Direction Change
76
Remote Selection of Unidirectional Flows Multi-Range with an External Signal
77
Remote Selection of Bidirectional Flows Multi-Range with an External Signal
78
High and Low Limit Alarm Output Performance
80
Single Range Performance
80
Multi-Range Performance
80
Empty Pipe Alarm
81
Output Conditions When an Empty Pipe Alarm Occurs
81
Preset Point Output
82
Preset Point Output Performance
83
Input/Output Signal Time Chart
83
Remote Zero Adjustment
84
Start Signal Requirements
84
Remote Selection of Fixed Value Output
85
Control Signal Input Conditions
85
Converter Failure Alarm
86
Self-Diagnostics Errors
86
Output Conditions
86
Communications Function
87
Connections with AF100 Terminal
87
Connections to the Current Output Line
87
Connections to the Flowmeter
87
Communications Procedure
88
Cautionary Notes on Communications
89
Filter Connection Example
89
Self-Diagnostics
90
Setting Error
90
Precautionary Notes on Using the Empty Pipe Alarm
91
Converter Hardware Failure
92
Output Status for Errors and Alarms
93
Maintenance
94
Troubleshooting
95
Flow Rate Is Not Indicated
95
Flow Rate Indication Is Not Correct
96
Flow Rate Indication Is Not Stable
97
Principle of Operation
98
Flowmeter Specifications
99
Overall Specifications
99
Detector
100
Converter
101
Input Specifications
101
Output Specifications
101
DO1 and DO2 Selectable Functions
102
Type Specification Code
104
Type Specification Code (Bolts, Nuts and Packings)
105
Outline Dimensions
106
Meter Size 150Mm and 200Mm
106
Meter Size 250Mm and 300Mm
107

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