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Toshiba
L5232
manual
Example of Pipe Mounting
Models:
L5232
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Troubleshooting
Specs
Install
Explanation of signal words
Password
Converter Error Alarm Output
Wiring
Maintenance
Preset Counter
Diagnostic messages
Page 19
Image 19
6F8A0917
Unit: inch (mm)
2.91 (74)
M10 U bolt, etc
14.57 (370
)
2” (50A) PIPE
Figure 4.2 Example of Pipe Mounting
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Contents
6F8A0917
Electromagnetic Flowmeter Converter LF232 Type
Nd Edition August First Edition June
6F8A0917
Safety symbols
Explanation of signal words
Color explanation
Safety Precautions for Installation and Wiring
Safety Precautions
Warranty and Limitation of Liability
Safety Precautions for Maintenance and Inspection
Usage limitation
Do not store or install the flowmeter
Handling Precautions
Handling Precautions
Table of Contents
6F8A0917
6F8A0917
Product Inspection
Product Inspection and Storage
Storage
Overview
Features
Appearance
Names of Parts
Internal structure with converter cover opened
Terminal block construction
Hands
Installation
6F8A0917
Unit inch mm
How to Install the Converter
Example of Pipe Mounting
Do not conduct wiring work with bare hands
Wiring
Urn off mains power before working on pipes
From mains power
Installation Cables
Installation Cables
External Connections
6F8A0917
Terminal Treatment of Cables
Wiring Method
Excitation cable
Terminal Treatment of Flow Rate Signal Cable
Connecting the input signal cable
Cable Connection
Power cable, current output cable and digital I/O cables
Connection to Terminal Block
Grounding
9a Wiring between Detector and Converter
10 Detector Grounding Method
Difficult
11 Connection Example of Electromagnetic Counter
Digital I/O Connections
Wiring
Installation
Replacing the LF230 Converter
Combination with an Existing Detector for Large Meter Size
12 How to Connect an Adjusting Capacitor
Replacement of partially filled pipes type
6F8A0917
Operation
6F8A0917
Display and Controls
Display and Controls
Names and Functions of Display and Controls
Operation switch infrared switch
LCD display
Instructions
Counter in operaiton Resets the counter
Functions of each switch
Measurement mode
Menu display Setting mode
Measured value display format
Display Format
Flow velocity value and instantaneous flow rate display
Total flow value display
Total count display
Total difference flow value display
Custom unit display
Percent display
Error message / other message display
Mode Switching
Fixed output display
ENTER111
6F8A0917
Moving to the menu display
Setting Mode Operation
To return from the menu display to the measurement mode
Checking or changing the setting values
Mode switching flow when password is set
Password Input
Example of password input mode selection SET and password
Totalizer Operation
Example of totalizer operation
Example to move to the maintenance menu
Maintenance Menu
Return to measurement mode
Setting Menu List
Parameter Setting Items
Parameter Settings / Adjustment
Exciting Current Value
Parameters Check / Change
Checking the exciting current value
Changing the exciting current value
Checking the meter size of the detector
Meter Size
Changing the meter size of the detector
26 to 120 500 to 3000 mm
Exciting Frequency
Checking the exciting frequency
10,1/6,1/4 2.5 to 6 mm
Changing the setting value for exciting frequency
Checking the flow direction
Flow Direction
Changing the flow direction
Switch
Checking the password
Password Setting
Changing the password
Normal Indicating Unit
Indicates the value in percent of the setting range
Checking the normal indicating unit
Currently set main indicating unit % in this example
Changing the flow direction for total flow
Coefficient of custom unit
Custom Unit
Unit string of custom unit
Changing the coefficient of custom unit
Checking the coefficient of custom unit
Proceed as follows to check the coefficient of custom unit
Changing the unit string of custom unit
Checking the unit string of custom unit
Proceed as follows to check the unit string of custom unit
Range type
Span Value Range
Unit of span
Span value
Setting sequence of span value range is shown below
Span value range setting flow
Hysteresis
Range 4 span value
Checking each constant
Range 2 span value
Range 3 span value
Changing the range type
Changing the span value
Changing the hysteresis
Checking the damping constant
Damping Constant
Proceed as follows to check the damping constant
Changing the damping constant
Checking the low cutoff value
Low Cutoff value
Proceed as follows to check the low cutoff value
Changing the low cutoff value
Current output setting function used when an alarm occurs
Current Output Setting Used When an Alarm Occurs
Checking the current output value used when an alarm occurs
Changing the current output value used when an alarm occurs
Checking whether the display low cut is On or Off
Display low cut On/Off
Changing the display low cut On/Off setting
Proceed as follows to check the output low limit value
Output Low Limit Setting
Checking the output low limit value setting
Output low limit value
Changing the output low limit value setting
Digital I/O Function
Digital output state only when alarm output is set
Digital output functions corresponding to each terminal
Digital Input Function
Digital Output
Checking each setting for digital I/O
Digital Output alarm state
Digital Input control signal level
Digital Output alarm status
Changing each setting for digital I/O
Count Rate Pulse Rate and Pulse Width
Pulse width mode
Count rate
Over Spec
Pulse width
Changing the count rate
Checking the count rate and pulse width
Pulse width
Changing the pulse width mode setting
Changing the pulse width
Preset count value
Preset Counter
Preset output function
Changing the preset count value
Checking the preset counter setting
100
Changing the preset output function
101
Flow Rate High/Low limit Alarm
High/low limit alarm On/Off
High/low limit value
102
Checking the high/low limit alarm setting
High-high limit alarm
Low-low limit alarm On/Off
103
Changing the high/low limit alarm On/Off
104
Changing the high/low limit value
105
Fluid Empty Alarm
Setting the fluid empty alarm
Checking the fluid empty alarm On/Off setting
106
Changing the fluid empty alarm On/Off setting
Self-Diagnosis Function
Self-diagnosis function On/Off setting
107
Checking the self-diagnosis alarm setting
Alarm output factor setting
108
109
Changing the self-diagnosis function setting
Rate-of-change control time
Checking the rate-of-change limit setting
Rate-of-Change Limit Value and Control Time
Rate-of-change limit value
111
Changing the rate-of-change limit setting
112
Initial Settings When Shipped from the Factory
113
Fixed current output value
Fixed value output On/Off setting
Fixed output mode can be selected by the setting as follows
Fixed Value Output Loop Check
Fixed pulse output value
Checking the fixed output function setting
115
116
Changing the fixed output function
117
Changing the fixed output constant
Still Water Zero Adjustment
Zero Adjustment
118
119
120
Zero Offset Adjustment
How to calculate the zero offset value
Checking the zero offset adjustment value
121
Changing the zero offset adjustment value
Calibration Items
Mag-Prover Calibration
122
Calibrating the zero point
Converter Check / Calibration
1 0% Flow Rate Calibration Zero Calibration
Checking the zero point
50% flow rate value can be checked only
2 50% Flow Rate Calibration
Checking the 50% flow rate value
124
125
3 100% Flow Rate Calibration Span Calibration
Checking the span value
Calibrating the span value
126
Checking the Exciting Current Value
Monitor value of the exciting current can be checked
127
Function Description
128
Digital I/O Specifications
Digital Outputs
Digital Input option
129
Totalizer and Pulse Output
130
131
Totalizer operation using digital input signals
132
Multi-Range Functions
Single direction internal automatic switching, 4 ranges
Output performance when multiple ranges are used
133
134
Output when switched from Reverse to
Forward direction Direction
135
Single direction external signal switching, 2 ranges
136
137
Single direction external signal switching, 4 ranges
Case of Single range
Flow Rate High/Low Limit Alarm Output
Flow rate high/low limit alarm output performance
138
139
Case of Multi-range setting
140
141
Fluid Empty Alarm Output
Output when an alarm is generated
Alarm output state described in 8.2.14 Digital I/O Function
142
Preset Counter Output Function
143
Preset counter output performance
144
Output example of one-shot pulse output
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Remote Still Water Zero Adjustment
147
Remote Selection of Fixed Value Output
148
Converter Error Alarm Output
Connection with the HHT terminal
Communications Function
149
Connection to the Converter Main Unit
150
151
Procedure for Communication with HHT
Current output load
Wiring cable
Interference on 4 to 20mA current signal
Use a shielded cable CVV-S, etc for wiring
High/low limit alarm
Diagnosis and Alarms
Diagnostic messages
Setting error
Fluid empty alarm
Process error alarm
154
155
Self-diagnosis error
156
Output When an Error or Alarm Occurs
Maintenance
Maintenance and Inspection
158
Check / Replacement of power supply unit
Product disposal
Operative life
Flow rate is not indicated
Troubleshooting
159
160
Flow rate indication is not correct
161
Flow rate indication is not stable
162
When switch operation is unable
163
Principle of Operation
= K × B × D × Q
164
Specifications
Specifications
Detector Combined Specifications
165
166
Converter specifications
167
168
169
Model Number Table
170
Gross mass approx lb8kg including a mounting plate
Outline Drawing
171
Electromagnetic Flowmeter Converter LF232 Type
172
FCF50017
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