YOKOGAWA FC500G User Manual
User ’s
TM
Manual
Model FC500G
Free Available Chlorine
Analyzer
(Non-Reagent Type)
IM 12F5A2-01E
IM 12F5A2-01E
5th Edition
Introduction
This user’s manual describes the specications, installation, operation, maintenance, and
troubleshooting for Model FC500G Free Available Chlorine Analyzer. Read this manual
thoroughly to understand the contents before operating the equipment.
n Notes on Hardware
l Appearance and Accessories
Check the following when you receive the product:
• Appearance
• Standard accessories
Contact our sales representative or your local distributor if the product’s coating has come o, it
has been damaged, or there is shortage of required accessories.
l Model and Sux Codes
The name plate on the product contains the model and sux codes. Compare them with those in
the general specication to make sure the product is the correct one. If you have any questions,
contact our sales representative or your local distributor.
i
Media No. IM 12F5A2-01E 5th Edition : July 2018 (YK)
All Rights Reserved Copyright © 2007, Yokogawa Electric Corporation
IM 12F5A2-01E
ii
Safety Precautions
Safety, Protection, and Modication of the Product
n
• In order to protect the system controlled by the product and the product itself and ensure
safe operation, observe the safety precautions described in this user’s manual. We assume
no liability for safety if users fail to observe these instructions when operating the product.
• If this instrument is used in a manner not specified in this user’s manual, the protection
provided by this instrument may be impaired.
• Be sure to use the spare parts approved by Yokogawa Electric Corporation (hereafter simply
referred to as YOKOGAWA) when replacing parts or consumables.
• Modication of the product is strictly prohibited.
Signal Words
n
The following words are used in this manual.
CAUTION
This symbol gives information essential for understanding the operations and functions.
NOTE
This symbol indicates information that complements the present topic.
Notes on Handling User’s Manuals
n
• Please hand over the user’s manuals to your end users so that they can keep the user’s
manuals on hand for convenient reference.
• Please read the information thoroughly before using the product.
• The purpose of these user’s manuals is not to warrant that the product is well suited to any
particular purpose but rather to describe the functional details of the product.
• No part of the user’s manuals may be transferred or reproduced without prior written
consent from YOKOGAWA.
• YOKOGAWA reserves the right to make improvements in the user’s manuals and product at
any time, without notice or obligation.
• If you have any questions, or you nd mistakes or omissions in the user’s manuals, please
contact our sales representative or your local distributor.
Warning and Disclaimer
n
The product is provided on an “as is” basis. YOKOGAWA shall have neither liability nor
responsibility to any person or entity with respect to any direct or indirect loss or damage arising
from using the product or any defect of the product that YOKOGAWA can not predict in advance.
n Trademark Acknowledgments
• EXA FC is a trademark of Yokogawa Electric Corporation.
• All other company and product names mentioned in this user’s manual are trademarks or
registered trademarks of their respective companies.
• We do not use TM or ® mark to indicate those trademarks or registered trademarks in this
user’s manual.
IM 12F5A2-01E
After-sales Warranty
n Do not modify the product.
n During the warranty period, for repair under warranty consult the local sales
representative or service oce. Yokogawa will replace or repair any damaged
parts. Before consulting for repair under warranty, provide us with the model
name and serial number and a description of the problem. Any diagrams or
data explaining the problem would also be appreciated.
l If we replace the product with a new one, we won’t provide you with a repair report.
l Yokogawa warrants the product for the period stated in the pre-purchase quotation
Yokogawa shall conduct dened warranty service based on its standard. When the
customer site is located outside of the service area, a fee for dispatching the maintenance
engineer will be charged to the customer.
n In the following cases, customer will be charged repair fee regardless of
warranty period.
• Failure of components which are out of scope of warranty stated in instruction manual.
• Failure caused by usage of software, hardware or auxiliary equipment, which Yokogawa
Electric did not supply.
• Failure due to improper or insucient maintenance by user.
• Failure due to modication, misuse or outside-of-specications operation which Yokogawa
does not authorize.
• Failure due to power supply (voltage, frequency) being outside specications or abnormal.
• Failure caused by any usage out of scope of recommended usage.
• Any damage from re, earthquake, storms and oods, lightning, disturbances, riots, warfare,
radiation and other natural changes.
iii
n Yokogawa does not warrant conformance with the specic application at the
user site. Yokogawa will not bear direct/indirect responsibility for damage due
to a specic application.
n Yokogawa Electric will not bear responsibility when the user congures the
product into systems or resells the product.
n Maintenance service and supplying repair parts will be covered for ve years
after the production ends. For repair for this product, please contact the
nearest sales oce described in this instruction manual.
IM 12F5A2-01E
Blank Page
Model FC500G
Free Available Chlorine Analyzer
(Non-Reagent Type)
IM 12F5A2-01E 5th Edition
CONTENTS
Introduction ..........................................................................................................i
Safety Precautions .......................................................................................ii
1. OVERVIEW ................................................................................................ 1-1
1.1 Standard Specications ................................................................................... 1-2
1.2 Model and Sux Codes ...................................................................................1-4
1.3 External Dimensions ........................................................................................1-5
1.4 Measuring Principle .......................................................................................... 1-6
2. COMPONENTS AND FUNCTIONS .......................................................... 2-1
2.1 Detector .............................................................................................................. 2-1
2.2 Converter ........................................................................................................... 2-2
Toc-1
3.
INSTALLATION, PIPING, AND WIRING ....................................................3-1
3.1 Installation ......................................................................................................... 3-1
3.1.1 Location .............................................................................................. 3-1
3.1.2 Mounting ............................................................................................ 3-2
3.2 Piping ................................................................................................................. 3-2
3.2.1 Sample Water Piping ......................................................................... 3-2
3.2.2 Air Purge Piping ................................................................................. 3-2
3.3 Wiring ................................................................................................................. 3-3
3.3.1 Wiring for Power Supply and Grounding ........................................... 3-3
3.3.2 Analog Output Wiring ......................................................................... 3-3
4. OPERATION .............................................................................................. 4-1
4.1 Preparation for Operation ................................................................................ 4-1
4.1.1 Inspection of Piping and Wiring Status .............................................. 4-1
4.1.2 Fill with Glass Beads for Electrode Polishing .................................... 4-1
4.1.3 Measuring Range Setting .................................................................. 4-2
4.1.4 Setting of “Applied Voltage Compensation/Applied Voltage Fixation’’ Se-
lection Jumper .................................................................................... 4-3
4.2 Start-Up .............................................................................................................. 4-4
4.2.1 Supplying Sample Water ................................................................... 4-4
4.2.2 Conrmation of “Power Supply Voltage” and “Measuring Range” Selec-
tion Jumpers Setting Status ............................................................... 4-4
4.2.3 Supplying Power ................................................................................ 4-5
4.2.4 Operation Check ................................................................................ 4-5
4.2.5 Calibration .......................................................................................... 4-5
4.3 Steady State Operation .................................................................................... 4-5
IM 12F5A2-01E
Toc-2
5. CALIBRATION ........................................................................................... 5-1
5.1 Zero Calibration ................................................................................................. 5-1
5.1.1 Zero Calibration Procedure Using the Open Input Circuit Method .... 5-1
5.1.2 Zero Calibration Procedure Using Chlorine-Free Water Method ......5-1
5.2 Span Calibration ............................................................................................... 5-2
5.2.1 Span Calibration Procedure Using the Sampling Method ................. 5-2
5.2.2 Span Calibration Procedure Using Standard Solution Method ......... 5-2
6. INSPECTION AND MAINTENANCE ........................................................ 6-1
6.1 Mechanical System ........................................................................................... 6-1
6.1.1 Indicator Electrode Polishing ............................................................. 6-1
6.1.2 Glass Beads and Measuring Tank Cleaning ..................................... 6-2
6.1.3 Brush and Slip Ring Checking ........................................................... 6-3
6.2 Electrical System .............................................................................................. 6-5
6.2.1 Span Calibration ................................................................................ 6-5
6.2.2 Converter Checking ...........................................................................6-5
6.2.3 Fuse Replacement .............................................................................6-5
7. TROUBLESHOOTING .............................................................................. 7-1
8. AUXILIARIES AND CONSUMABLES ...................................................... 8-1
8.1 Auxiliaries and Consumables List .................................................................. 8-1
8.2 Auxiliaries and Consumables ......................................................................... 8-1
8.2.1 Polisher (Part number: K9088PE) ..................................................... 8-1
8.2.2 Glass Beads (Part number: K9332ZJ)............................................... 8-1
8.2.3 Indicator Electrode (Part number: K9332MB) ................................... 8-1
8.2.4 Grease (Part number: K9044FX) .......................................................8-1
8.2.5 Counter Electrode (Part number: K9332MK) .................................... 8-1
8.2.6 Brush and Slip Ring (Part number: K9332JX, K9332JZ) .................. 8-2
Customer Maintenance Parts List .......................................... CMPL 12F5A2-01E
Revision Information ...............................................................................................i
IM 12F5A2-01E
<1. OVERVIEW>
1. OVERVIEW
Model FC500G Free Available Chlorine Analyzer (Non-Reagent Type) is used for continuous
measurement of free available chlorine in tap water distribution. This analyzer consists of a
detector and a converter as shown in Figure 1.1.
This chapter describes the FC500G free available chlorine analyzer specications and its
measuring principle.
Detector
Converter
1-1
Figure 1.1 Appearance of Model FC500G Free Available Chlorine Analyzer
IM 12F5A2-01E
<1. OVERVIEW>
1-2
1.1 Standard Specications
Measured Object: Free available chlorine contained in tap water
Measuring System: Polarographic method using rotating electrode
Measuring Ranges: 0 to 1 / 0 to 2 / 0 to 3 mg/L (Model FC500G-1)
0 to 5 / 0 to 10 mg/L (Model FC500G-5) (Air purge is necessary.)
Indication: Digital (3 1/2 LCD)
Output Signal: 4 to 20 mA DC (Load resistance: Maximum 500 Ω)
Operating pH Range of Sample Solution:
pH 6.5 to 7.5: For measured liquids whose pH exceeds the above limits,
error increases (refer to the following gure).
Sample Solution:
Temperature: 0 to 40°C (temperature compensation range 5 to 35°C).
Pressure: 1 to 30 kPa (for without VALVE)
1 to 150 kPa (with VALVE)
Flow Rate: 0.1 to 2.5 L/min (at tank inlet)
Conductivity: 100 to 300 μS/cm
SS (Suspended Solid): 10 mg/L or less
Air Purging (for only 0 to 5 / 0 to 10 mg/L Range)
Supply Air Pressure: About 50 to 140 kPa
Air Consumption: About 5 L/min
Electrode:
Indicator Electrode: Rotating gold electrode
Counter Electrode: Silver electrode (with Pt 1000 installed)
Electrode Cleaning: Glass beads used for cleaning
Wetted Part Materials:
Measuring Tank: Acrylic resin (molding)
Piping: Flexible PVC and PE
Color: Muncell 5Y7/1
Finish: Baked polyurethane resin coating
Mounting: On the wall or 2 inch pipe (OD 60.5 mm)
Ambient Temperature: -5 to 50°C
Power Supply: 100 or 110 V AC; or 200 or 220 V AC as per order ±10%, 50 or 60 Hz
Power Consumption: Approximately 15 VA (100 or 110 V), 20 VA (200 or 220 V)
Weight: Approximately 6.5 kg
EMC Regulatory Arrangement in Australia and New Zealand (RCM)
EN 55011 Class A, Group 1
IM 12F5A2-01E
Characteristics:
Reproducibility: 2% of full scale
Linearity: ±5% of full scale
Stability: Zero Drift: Within ±1% of full scale/month
Span Drift: Maximum -10% of full scale/month
<1. OVERVIEW>
Indicated value (mg/l)
Response Time: Approximately 2 minutes (time required to obtain a value within 90% of
nal value)
Ambient Temperature Inuence:
±0.5% of full scale/10°C
Power Voltage Fluctuation Inuence:
±0.5% of full scale/10% of rated voltage
Sample Solution Temperature Compensation Error:
±3% of full scale/5 to 35°C
1.0
pH6.5 pH7.5
1-3
0.5
0
3 4 5 6 7 8 9 10
Figure 1.2 Sensitivity characteristics of diusion current by pH value
Figure 1.3 Sensitivity characteristics of diusion current by conductivity
Note: If conductivity exceeds 300 μS/cm, default value of applied voltage should be changed.
Operating range
pH
n Accessories
Fuse (1 A) .........................4 pcs.
Glass Beads .....................1 (2 bags)
Allen Wrench ....................2 pcs.
Screwdriver (at blade) ...1 pc.
Polishing Powder ..............1 bottle
IM 12F5A2-01E
<1. OVERVIEW>
1-4
1.2 Model and Sux Codes
Model Sux Code Option Code Description
FC500G ���������������������������������� ���������������������� Free Available Chlorine Analyzer
Range
Output signal 1 ���������������������� 4 to 20 mA DC
Power
Inlet valve
Language -E ���������������������� English
n Spare Parts
Indicator Electrode K9332MB Rotating Electrore
Counter Electrode K9332MK Reference Electrode
Glass Beads K9332ZJ Washing Indicator Electrode (2 bags)
Polishing Powder K9088PE Polishing Indicator Electrode
Brush K9332JX
Slip Ring K9332JZ
Grease K9044FX
-1
-5
3
4
5
6
0
1
Name Parts No. Note
����������������������
����������������������
����������������������
����������������������
����������������������
����������������������
����������������������
����������������������
0 to 1 / 0 to 2 / 0 to 3 mg/L Switchable
0 to 5 / 0 to 10 mg/L Switchable
100 V ±10%, 50/60 Hz
110 V ±10%, 50/60 Hz
200 V ±10%, 50/60 Hz
220 V ±10%, 50/60 Hz
Without Valve
With Valve
IM 12F5A2-01E
<1. OVERVIEW>
1.3 External Dimensions
(1) With Inlet Valve (FC500G-¨¨¨1-E)
1-5
105 131
52.5
Approx.150
Wiring inlet
3-Ø23 holes
Converter
4-Ø8.5 holes
for mounting
(U-bolt on bracket)
Approx.250
240
Cap
100
128.5 48
3022 26
22
5.5
Cable gland
space
Maintenance
17.5
52.5
70
(22)
22 22
108
0.50
mg/l
70
21
Outlet
Ø12 Nipple
2-inch pipe (Ø60.5)
265
(209)56
76
Cap
17.3
13.7
Outlet
Maintenance spaceMaintenance space
Approx.160
Mounting bracket
2.8
49.2
35
33.4
Inlet
Drain cock
Approx.
Driving
Box
Tub
150
space
Maintenance
295
310
154
50
Approx.
space
Maintenance
Purge air inlet
1/4-18 NPT
(for only FC500G-5-E)
Insert
Drain cock
Unit: mm
(48)(154)
Inlet
Ø6/Ø4 Union
(2) Without Inlet Valve (FC500G-¨¨¨0-E)
17.3
92
Maintenance spaceMaintenance space
Approx.160
2.8
49.2
35
33.4
Inlet
Drain cock
Driving
Box
Tub
10
Approx.150
Wiring inlet
3-Ø23 holes
Converter
100
128.5
3022
22
Cable gland
space
Approx.250
Maintenance
240
Cap
2-Ø8.5 holes
for mounting
22 22
0.50
(22)
Outlet
mg/l
Outlet
Ø12 Nipple
260
76
Cap
146.5 (5.5)108
13.7
150
Approx.
17830
295
154
50
Approx.
space
Maintenance
Purge air inlet
1/4-18 NPT
(for only FC500G-5-E)
space
Maintenance
Insert
Drain cock
Unit: mm
75
4
Inlet
Ø6/Ø4 Union
Figure 1.4 Model FC500G Free Available Chlorine Analyzer External Dimensions
IM 12F5A2-01E
<1. OVERVIEW>
1-6
1.4 Measuring Principle
The FC500G free available chlorine analyzer (non-reagent type) is used for measuring
concentration of free available chlorine present in sample water, such as chlorine (Cl2)
hypochlorous acid (HClO), and hypochlorite ion (ClO-).
The measuring principle of this analyzer is analysis determination using the rotating electrode
polarographic method. Free available chlorine concentration is determined by measuring the
current (diusion current) which ows when free available chlorine is subjected to electrolytic
reduction by applying a voltage (applied voltage) between the indicator electrode (rotating
electrode) and the counter electrode. The applied voltage is set in a region where concentration
polarization occurs (plateau region) in polarography. In the plateau region, the diusion current
does not change even if the applied voltage changes.
In measurement practice, since the plateau region changes with free available chlorine
concentration, the applied voltage is compensated so that measurement can always be
performed in the plateau region. Also, since the diusion current is aected by the sample water
temperature, temperature is compensated using a temperature sensor (Pt1000Ω) incorporated in
the counter electrode.
Figure 1.5 shows the block diagram for the FC500G free available chlorine analyzer (nonreagent type) operation. The analyzer determines the free available chlorine concentration by
applying an applied voltage corresponding to the diusion current between the indicator and
counter electrodes and by applying temperature compensation to the diusion current.
First stage
amplifier
Applied voltage
compensating
pulse circuiut
Drain
Measuring
tank
Temperature
signal
Free available
chlorine
detecting circuit
Temperature
compensation
circuit
PWM circuit
isolator
Free available
chlorine/
conductivity
display
Voltage-current
conversion
circuit
Sample
water
Indicator
electrode
Diffusion current
Applied voltage
Counter
electrode
(Pt 1000Ω)
Figure 1.5 Block Diagram for FC500G Free Available Chlorine Analyzer Operation
4 to 20 mA DC
output
F1-5.ai
IM 12F5A2-01E
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