Waltron 3048 User manual

101-024-B.1
EXPERTS IN WATER CHEMISTRY SINCE 1903
3048 Dissolved Iron Analyzer
User Manual

Waltron Customer Commitment
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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
WALTRON CUSTOMER COMMITMENT
This instruction manual is a technical guide to aid the customer in the set-up, operation, and
maintenance of their new Waltron measuring system. Waltron provides continuous product
improvement and reserves the right to make any modifications to the information contained
herein without notice.
Copyright © Waltron Bull & Roberts, LLC, 2018
All Rights Reserved
Technical questions concerning this product should be addressed to:
Waltron Technical Service Department
Flemington, New Jersey
Phone: [phone]
Fax: [phone]
www.waltron.net
Please be ready to provide the following information:
Date analyzer was purchased
Analyzer model and serial number
Recent maintenance history
Calibration slope values and detailed description of problem
Waltron’s technical expertise and extensive experience provides personalized solutions to the
water quality industry. It is Waltron’s commitment to provide the customer with timely and
accurate technical service and support.
Waltron fully expects the customer to be satisfied with the quality and performance of this
product.
If there are any questions or concerns regarding this product, please feel free to contact Waltron
at (908)-534-5100.
Thank you for choosing Waltron!
Please note the Waltron mailing and shipping address:
Waltron Bull & Roberts, LLC
25 Minneakoning Road, Suite 101
Flemington, NJ 08822

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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
Safety
SAFETY
Please observe proper safety and handling precautions when installing, operating, maintaining,
and servicing this product. The following should be noted and adhered to:
Read and understand manual before working with analyzer.
Pay special attention to warning labels on enclosures, containers, packages and
chemicals.
Only qualified personnel should be involved in the installation, operation, and servicing
of the analyzer.
Follow safety precautions when operating analyzer in conditions of high pressure and/or
temperature.
Keep analyzer chemicals away from heat and extreme temperatures. Reagent powders
must be kept dry.
Follow all regulations and warning labels when disposing of chemicals. Do not mix
chemicals.
To obtain analyzer safety information or Safety Data Sheets (SDS), please contact Waltron or
visit the website at www.waltron.net .

Warranty Agreement
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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
WARRANTY AGREEMENT
If, within one year from the date of shipment, the customer experiences any equipment defects or
is not satisfied with the analyzer manufacturing, Waltron will repair, or at its option, replace any
defective part(s) free of charge. This warranty requires that the defective part(s) be returned to
Waltron with shipping charges prepaid.
At Waltron discretion, a Technical Service Specialist may be sent out to repair or replace the
defective part(s) on location. Traveling time and expenses of the Technical Service Specialist is
at the customer’s expense.
Equipment sent to Waltron must be appropriately packaged and the following information must
be provided prior to returning to Waltron:
The Return Authorization (RA) number assigned to the customer by the Waltron
Technical Service Department
Customer name, address and department
Name and telephone number of the individual responsible for returning items for repair
Brief problem description
Ship to Waltron service center:
Waltron Bull & Roberts, LLC
25 Minneakoning Road, Suite 101
Flemington, NJ 08822
The Waltron Warranty Agreement:
Covers expendable sensors for one month after shipment and reusable electrodes for six
months after shipment.
Does not apply to damages occurred during shipping.
Warranty will be nullified if goods have been used for purposes other than those for
which they are intended or if any seal has been removed, broken or tampered with or if
the Waltron trademark or serial number has be removed, defaced, or altered.
Does not cover expendable supply items such as reagents, tubing and electrolytes.
Does not cover misuse or mistreatment by the user.
Does not cover previous repair or alteration by unauthorized individuals.
Waltron does not assume responsibility for contingent liability through alleged failure or failures
of products or product accessories.

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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
Checklist of Materials
CHECKLIST OF MATERIALS
In order to ensure customer satisfaction, Waltron does its best to provide adequate and timely
packaging and shipping services. Please perform the following after receiving a shipment:
Inspect all shipping containers upon receipt and record any visible damage. If there are
any outward signs of damage, please retain all containers and packages for inspection by
carrier. Please retain all packing material so that it can be used for future moving and
shipping needs.
Check all items received against those on the packing list. Chemicals are usually shipped
in a separate package and will be itemized accordingly.
Verify that the number of packages received agrees with the packing list and shipping
papers.
Notify both Waltron and the carrier if any problems occur.
Important Notice:
All analyzers are inspected and tested prior to shipment.
In normal use, the unit should require only minor maintenance and should operate
correctly and without fault over a long period of time.
Please note that if electronic components need to be replaced, it may be necessary to
adjust and/or calibrate the analyzer.
Failure to carry out correct maintenance procedures may result in inaccurate analyzer
readings.

Table of Contents
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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
TABLE OF CONTENTS
Waltron Customer Commitment..............................................................1
Safety.........................................................................................................2
Warranty Agreement.................................................................................3
Checklist of Materials...............................................................................4
Table of Contents .....................................................................................5
List of Figures...........................................................................................7
List of Tables.............................................................................................8
1Overview..............................................................................................9
1.1 Specifications............................................................................................................... 9
1.1.1 Performance......................................................................................................... 9
1.1.2 Sample Operating Conditions............................................................................... 9
1.1.3 Signal Outputs.....................................................................................................10
1.1.4 Operational Calibration........................................................................................10
1.2 Safety Precautions, Instructions, and Hazards............................................................10
1.2.1 General Information.............................................................................................10
1.2.2 List of Warnings and Potential Dangers...............................................................11
1.2.3 Reagents.............................................................................................................12
1.2.4 Sample ................................................................................................................12
1.2.5 Waste Disposal....................................................................................................12
1.2.6 Analyzer General Hazards...................................................................................12
2Introduction.......................................................................................15
2.1 Analyzer Description...................................................................................................15
2.2 Applications ................................................................................................................16
2.3 Working Principle........................................................................................................16
2.4 Analysis Cycle ............................................................................................................18
2.4.1 Programming Commands....................................................................................18
2.4.2 Flow Diagram.......................................................................................................19
2.4.3 Analyzer Operations ............................................................................................19
2.5 Fast Loop Reservoir....................................................................................................20
2.6 Wet-Section Box.........................................................................................................22
2.7 Electronics..................................................................................................................23
3Installation.........................................................................................24
3.1 Receiving....................................................................................................................24
3.2 Analyzer Handling.......................................................................................................24
3.3 Location and Mounting................................................................................................24
3.4 Pre-Installation............................................................................................................24
3.5 Mouting Schematics....................................................................................................25
3.6 Electrical Connections ................................................................................................27
3.6.1 AC Power Connection..........................................................................................27

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Table of Contents
3.6.2 User Signal Connections .....................................................................................28
3.7 Reagent Information ...................................................................................................29
3.8 Reagent Holding Bracket............................................................................................29
4Analyzer Initial Start-Up....................................................................30
4.1 Preparing the Analyzer for Start-Up............................................................................30
5User Interface....................................................................................31
5.1 User Instructions.........................................................................................................31
5.2 User Password ...........................................................................................................31
5.3 Main Screen................................................................................................................32
5.4 Reagent Refill.............................................................................................................33
5.5 Run Menu...................................................................................................................34
5.6 Display Menu..............................................................................................................35
5.6.1 Display Process Values.......................................................................................35
5.6.2 Chart....................................................................................................................35
5.6.3 Manual Step ........................................................................................................35
5.7 Data Logger................................................................................................................36
5.7.1 Save to USB........................................................................................................36
5.8 Program Menu............................................................................................................37
5.8.1 Settings Menu......................................................................................................37
5.8.2 Calibration Menu..................................................................................................38
5.9 Service Menu..............................................................................................................39
6Operation...........................................................................................40
6.1 Reagents Prime..........................................................................................................40
6.2 Blank Calibration.........................................................................................................40
6.3 Slope (Factor) Calibration...........................................................................................41
6.4 Single Analysis Cycle..................................................................................................41
6.5 Online Measurement...................................................................................................42
6.6 Grab Sample...............................................................................................................43
6.7 Emergency Stop.........................................................................................................43
7Maintenance ......................................................................................44
7.1 Scheduled Maintenance .............................................................................................44
7.2 Sample Pump Tubing Replacement............................................................................46
7.3 Drain Pinch Valve Tubing Replacement......................................................................47
7.4 Reagent Pump Tubing Replacement ..........................................................................47
8Analyzer Shut-Down .........................................................................49
9Troubleshooting................................................................................50
10 Spare Parts........................................................................................51
Appendix A –Panel Mount Schematics................................................52

List of Figures
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3048 Dissolved Iron Analyzer
LIST OF FIGURES
Figure 2.1: Waltron 3048 Analyzer front view. ......................................................................15
Figure 2.2: Waltron 3048 inside view with electrical box and liquids box shown. ............16
Figure 2.3: Color development...............................................................................................17
Figure 2.4: Flow diagram........................................................................................................19
Figure 2.5: Depiction of the fast-loop reservoir....................................................................20
Figure 2.6: Mounting dimensions for the fast loop reservoir...............................................21
Figure 2.7: Hydraulic box with components indicated.........................................................22
Figure 2.8: Electronics enclosure..........................................................................................23
Figure 3.1: The dimensions for mounting the analyzer........................................................25
Figure 3.2: Reccomended complete system installation. ....................................................26
Figure 3.3: Electrical connections for user connections and power connections.............28
Figure 3.4: Mounting schematics for the reagent holding bracket......................................29
Figure 5.1: User interface main display screen. ...................................................................31
Figure 5.2: User interface screen for Reagents Refill...........................................................33
Figure 5.3: User interface after pressing the RUN Menu......................................................34
Figure 5.4: User interface in the DISPLAY Menu. .................................................................35
Figure 5.5: Manual step functions shown in the bottom left corner....................................36
Figure 5.6: Data logger screen of the user interface............................................................36
Figure 5.7: User interface after pressing the PROGRAM Menu...........................................37
Figure 5.8: The SETTINGS Menu and options are displayed...............................................37
Figure 5.9: User interface at the CALIBRATION Menu. ........................................................38
Figure 7.1: Pump tubing replacement. ..................................................................................46

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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
List of Tables
LIST OF TABLES
Table 1.1: List of hazards and dangers. ................................................................................11
Table 1.2: List of materials used in Waltron 3048 Analyzer. ................................................12
Table 2.1: The run sequence of colorimetric determination. ...............................................18
Table 3.1: Terminal block pin locations.................................................................................28
Table 5.1: User password.......................................................................................................31
Table 5.2: Menu access level with password........................................................................31
Table 5.3: Analyzer operating statuses.................................................................................32
Table 5.4: Main menu button descriptions............................................................................32
Table 7.1: Scheduled manintenance reference chart...........................................................45
Table 9.1: Alarm descriptions. ...............................................................................................50
Table 10.1: Routine Maintenance Parts Listing. ...................................................................51
Table 10.2: Standards and Reagents Parts Listing...............................................................51
Table 10.3: Spare Parts Listing..............................................................................................51

Overview
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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
1 OVERVIEW
1.1 SPECIFICATIONS
1.1.1 PERFORMANCE
Sensor Classification:
Colorimetric with glass flowcell and LED source
Application:
Demineralized, boiler, potable, surface and waste
water
Power Supply:
110-220Vac, 50-60 Hz 80 VA
Humidity:
Up to 90% not condensable
Ambient Temperature Range:
10-45º C analyzer (50-113º F)
Range:
0 –100ppb, 0 –300ppb, 0 –3ppm*, 0 –30ppm*
*By Auto Dilution
Accuracy:
+/–2% of full scale
Unit Dimensions:
Height=23.6”(60 cm), Width=15”(38 cm),
Depth=8.3”(21 cm)
Positioning and Installation
Details:
Wall mounting or with bench support, panel mount
optional
Response Time (approx.):
10min, batch process, programmable cycle frequency
Alarms:
2 or 4 configurable alarm relays
Reproducibility:
+/–2% of reading, whichever is greater
Degree of Protection:
IP55 (NEMA 4): Wet section, IP65 (NEMA 4x):
Electronics
Required Maintenance:
Monthly replenish reagents, Quarterly replace tubing
Reagent Consumption
(approx.):
1 reagent, 1L per month
Materials in Contact with
Sample:
Glass, Silicone, Plexiglass, Stainless Steel AISI 316
CE Certification (on request):
Meets low voltage and low electromagnetic
compatibility directives
Sample Conditioning
Requirements:
Filtering between 10 and 60 micron, depending on the
matrix, needed only to avoid clogging
Weight:
17 kg
1.1.2 SAMPLE OPERATING CONDITIONS
Temperature Range:
5-55º C (41-131º F)
Inlet Sample:
100–500 ml/min, atmospheric, flexible tubing I.D. ¼” (6 mm)
Outlet Sample:
Atmospheric, waste tubing O.D. 3/8” (9 mm)
Turbidity:
Not applicable, sample blank correction
Color:
Not applicable, sample blank correction
PH:
3-12

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3048 Dissolved Iron Analyzer
Overview
1.1.3 SIGNAL OUTPUTS
Analog Outputs:
4-20mA (galvanic isolator module available as option) or 0-5V
Serial I/O for Signals:
Serial data output RS232 standard, RS485 available as option
1.1.4 OPERATIONAL CALIBRATION
Frequency/Intervals:
Recommended: 7 days
Single/Multi-Point:
Multi-Point: zero and mid-range
Matrix Corrections:
Yes, sample blank correction
Manual/Automatic:
Both
1.2 SAFETY PRECAUTIONS, INSTRUCTIONS, AND HAZARDS
1.2.1 GENERAL INFORMATION
This manual contains important information which is required for installation, start up and
operation of the Waltron 3048 Dissolved Iron Analyzer. Please read this manual carefully before
installing and placing the analyzer into service!
Pay attention to all caution and danger labels present on the analyzer and all caution and danger
statements written on this manual.
The user has the responsibility to read and understand the information contained in this
manual, and to abide by all applicable employee health and safety regulations.
Use, maintenance, and service of this analyzer is allowed only by qualified personnel
who are fully trained on the analyzer’s operations. These personnel are required to be
physically and mentally fit and not under the influence of alcohol or/and drugs.
When the analyzer is not being used it should be protected by an appropriate circuit
breaker Failure to do so and non-observance of hazards or dangers warnings could result
in death or serious injury to the operators or damage to the analyzer.
Before using the analyzer, it is necessary to visually check for damage to safety devices
and report issues to the appropriate responsible person, even if the analyzer continues to
operate.
The analyzer’s components are installed inside a metallic enclosure with a door equipped
with a special key, provided with the analyzer, to be used only by authorized personnel.

Overview
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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
1.2.2 LIST OF WARNINGS AND POTENTIAL DANGERS
The table below is a list of hazardsand dangerswarning labels that may be found on the analyzer
and/or in this manual.
Table 1.1: List of hazards and dangers.
Hazard of electrical shock
This symbol is used to present a hazard of severe electric
shock or electrocution. All controls and maintenance on
electrical devices labeled with this symbol should be made by
qualified personnel in accordance with national or local
regulations. Qualified Personnel means personnel who have
been fully trained and have professional experience in
avoiding electrical hazards and dangers. To avoid potentially
fatal electric shock and/or analyzer damage always disconnect
power to the analyzer before servicing.
Components:
· main power
supply
· peristaltic pump
motor
· input terminal
· mixing pump
· heater
Hazard of chemical burns
This symbol is used to indicate the potential hazard of severe
burns and serious injury due to hazardous chemicals. All
handling of chemicals labeled with this symbol should be
performed by qualified personnel in accordance with national
or local regulations. Qualified Personnel means personnel who
have been fully trained and have professional experience in
avoiding chemical hazards and dangers. Before proceeding
with the handling of chemicals and service operations, read
the safety data sheets supplied with each chemical in order to
take all the necessary precautions when handling, including
appropriate personal protective equipment (PPE).
Components:
· fluidics section
· reagent
containers
Harmful
Specific indication depending on the parameter analyzed and
the chemical colorimetric method used.
Components:
· fluidics section
· reagent
container
Warning of general hazard
Indication of general hazards or warnings to follow during
installation, operation, or maintenance.

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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
Overview
1.2.3 REAGENTS
The Waltron 3048 Dissolved Iron Analyzer operates based on standard colorimetric analysis
methods, using chemical solutions.
For the dangers and hazards regarding the chemicals used for the analysis, refer to the
appendix or the supplied SDS sheets.
Make sure that proper safety precautions are taken (e.g. using safety gloves and glasses)
during handling the chemical solutions and the reagents containers / bottles.
Read and undersand the material safety data sheets for each chemical.
The reagent bottles are marked with GHS compliant lables.
1.2.4 SAMPLE
Take the proper precautions to avoid direct contact with the sample stream. It is the responsibility
of the user totake all neccessary precautions regarding physical, chemical, radiation and/or
biological hazards from sample stream and/or sample vapors. It is also the responsibility of the
user to ensure the sample stream is compatible with the materials of construction listed below.
Table 1.2: List of materials used in Waltron 3048 Analyzer.
Pump tubing
Silicon or Norprene
Fittings
PP
Connection tubing
Norprene / Silicon
Colorimetric cell
Glass
Mixing membrane pump
PP / EPDM
Pinch valve
Viton / silicon tubing
1.2.5 WASTE DISPOSAL
The liquid waste from the analyzer contains small amounts of the reagent chemicals. Dispose of
the waste in accordance with the appropriate regulations.
1.2.6 ANALYZER GENERAL HAZARDS
1.2.6.1 Electrical Hazards and Precautions
General information:
In all electrical devices that are 110-220 Vac powered, there is a hazard of electrical
shock or electrocution.
To protect all personnel involved in analyzer use and maintenance, the door of the
analyzer enclosure is equipped with a special key.
Qualified service personnel will receive the special key to open the analyzer’s enclosure.
Before servicing the analyzer parts that are electrically powered, turn off power to the
analyzer to avoid risk of electrocution.
To turn off power from an electrical device, it is necessary to interrupt the power line
using a circuit breaker or an isolating switch to be sure that there is no power in the area

Overview
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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
to be serviced.
Inside the analyzer’s enclosure, the lower level of protection against direct contacts is
IP2X. The analyzer’s enclosures are IP54. (NEMA 3)
Protection against indirect contacts is guaranteed by efficient grounding of all isolated
metal masses. A grounding screw is located inside the electrical enclosure, in the lower
right position.
1.2.6.2 Operating Hazards and Precautions
HAZARD
Mechanical hazards caused by moving parts such as the
peristaltic pump and the motor.
Preventive Actions:
To avoid risks, the analyzer’s moving parts have been designed, built and located in a
closed enclosure with a special key. Inside the enclosure, these parts have protective
covers to avoid any contact and physical injuries to users.
HAZARD
Hazard of burns and poisoning caused by contact with
dangerous chemicals.
Preventive Actions:
To avoid risks, the analyzer’s parts that can cause contact with chemicals have been
designed, built and located in closed enclosure with a special opening key. Before
servicing the liquids section, read the material safety data sheets supplied with each
chemical and take all the necessary precautions when handling. Wear eye protection,
gloves, mask and clothing if necessary.
HAZARD
Hazardous fumes may be generated in the event of leaks in
the reagent tubing.
Preventive Actions:
Install the analyzer in anadequately ventilated area.

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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
Overview
HAZARD
Hazard of electric shock and/or electrocution in the electrical
enclosure.
Preventive Actions:
The analyzer’s electrical equipment complies with EN 60204 (NEMA 3) standards. .
To avoid risks, the analyzer’s components that can cause electric shock and/or
electrocution have been designed, built and located in an enclosure with a special key.
Inside the enclosure, these parts have protective covers with warning labels to avoid
contact and serious injuries or death to users.
NOTE:
Electrical equipment with input power and grounding must
comply with national and/or local regulations and laws.
Preventive Actions:
Check that the source voltage to be used corresponds with that requested by the analyzer.
Periodically check the power cord grounding in addition to the analyzer grounding.

Introduction
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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
2 INTRODUCTION
2.1 ANALYZER DESCRIPTION
The Waltron 3048 is an on-line analyzer for batch analysis (sequence of sampling, analysis and
result processing), using a colorimetric method. The analyzer is assembled in an enclosure with a
lockable door. The LIQUIDS enclosure includes all the components involved in sample and
reagent flows as well as mixing and reaction stages (sampling pump, colorimetric reaction cell,
reagent micropumps). The ELECTRICAL enclosure includes the main power supply, the
controller PCB assembly, and the touchscreen interface.
Figure 2.1: Waltron 3048 Analyzer front view.

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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
Introduction
Figure 2.2: Waltron 3048 inside view with electrical box and liquids box shown.
2.2 APPLICATIONS
The Waltron 3048 Analyzer is designed for measurement of Dissolved Iron concentrations in
high purity water.
2.3 WORKING PRINCIPLE
Lambert-Beer Law
A colorimetric determination is based on the color-formation after addition of reagents. The
absorbance of the solution is measured at a specific wavelength. The absorbance is related to
sample concentration according to 'Beer's law'.
The Lambert–Beer law is an empirical relationship that relates the absorption of light to the
properties of the material through which the light is travelling.
The law states that there is a logarithmic dependence between the transmission (or
transmissivity), T, of light through a substance and the product of the absorption coefficient of the
substance, α, and the distance the light travels through the material (i.e. the path length), ℓ.
The transmission (or transmissivity) is expressed: T = I1/ I0
Electrical Box
Liquids Box

Introduction
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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
Absorbance for liquids is defined as the negative logarithm of the transmittance:
A= - log10T= log101/T= log10I0/I1
I0= light intensity through the sample before colorimetric reaction
I1= light intensity through the sample after colorimetric reaction
In most cases the absorbance has a linear correlation with the sample concentration; for a linear
calibration line just the blank and span values (i.e. concentration with zero analyte and the
maximum expected concentration) are needed. Multiple analyses at each point are averaged to
provide a more accurate calibration line.
The absorbance ranges from 0 to 1, but it can go higher.
An absorbance of 0 at some wavelength means that no light of that particular wavelength
has been absorbed. The intensities of the sample and reference beam are both the same, so
the ratio I0/I1is 1. Log10 of 1 is zero.
An absorbance of 1 occurs when 90% of the light at that wavelength has been absorbed
which means that the intensity is 10% of the blank value. In that case, I0/ I1is 100/10 (=10)
and log10 of 10 is 1.
Absorption photometry (Colorimetry):
The method used is based on the formation of a colored complex of the analyte with a reagent.
Light with a specific wavelength is passed through the sample and reagent solution. . The
absorbance of this light by the reaction complex, measured by a photometer, is related to the
concentration of the analyte.
readingsensor
reference
Absorbance log
Figure 2.3: Color development.

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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
Introduction
2.4 ANALYSIS CYCLE
2.4.1 PROGRAMMING COMMANDS
An analysis time program in the Waltron 3048 Dissolved Iron Analyzer has the following
structure:
1. After rinsing the reaction colorimetric cell and taking a sample, a reference measurement
is taken. In this way interfering factors are eliminated such as sample color or turbidity,
reagent color, or refractive index variations.
2. The actual Dissolved Iron reading is taken after addition of the color forming reagent and
color development.
Table 2.1: The run sequence of colorimetric determination.
Conditioning, rinsing and sampling
Drain, rinse and sample functions
The colorimeter cell is drained and refilled with sample 3
times, and then filled and left full of sample. This clears the
sampling pump, tubing, and cell and insures a fresh sample
is analyzed.
Mixing and wait
Mix and wait functions
The waiting time is programmed in order to eliminate
bubbles and suspensions.
First measurement
Reference function
A reading is taken using the colorimeter to provide a
reference value to compare the measured color against. This
automatically corrects for sample background color or
turbidity.
Addition of color reagent(s)
Add reag function
Reagent 1 is added to form the color.
Mixing and wait
Mix and wait functions
The mixing pump is activated and the liquid is pumped from
the lower part to the upper part of the colorimetric cell; in
this way reagent(s) is mixed. The waiting time is
programmed in order to complete the colorimetric reaction.
Reading, absorbance and
concentration calculation
Read sensor, absorbance, calculation
Reading of the light intensity after the colorimetric reaction,
calculation of the absorbance and of the concentration.
Drain, conditioning, rinsing, sampling
Drain, rinse and sample functions
Drain and rinse of the hydraulic line and the colorimetric
cell.
Waiting time (analysis frequency)
Wait function
The wait function is a programmable time the user can use
to determine sample and analysis frequency.

Introduction
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Waltron User Manual 101-024-B.1
3048 Dissolved Iron Analyzer
2.4.2 FLOW DIAGRAM
Figure 2.4: Flow diagram
2.4.3 ANALYZER OPERATIONS
The Waltron 3048 Dissolved Iron Analyzer performs several operations throughout a cycle. A
list of common operations is shown below.
Rinse #1
Rinse #2
Drain
Sample #1
Sample #2
Add Reagent #1