Waltron Aqualert 6051 User manual

101-048-B.1
EXPERTS IN WATER CHEMISTRY SINCE 1903
Waltron Aqualert 6051
Hardness Analyzer
Instruction Manual

2
Introduction
Waltron User Manual 101-048-B.1
6051 Hardness 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, 2019
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, performance, and
cost 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

3
Introduction
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
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 logon to www.waltron.net.

4
Introduction
Waltron User Manual 101-048-B.1
6051 Hardness 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.

5
Introduction
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
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.

6
Introduction
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
Table of Contents
WALTRON CUSTOMER COMMITMENT ............................................................................................. 2
SAFETY ............................................................................................................................................. 3
WARRANTY AGREEMENT .................................................................................................................4
CHECKLIST OF MATERIALS ................................................................................................................ 5
1INTRODUCTION........................................................................................................................8
2ANALYZER AT A GLANCE .......................................................................................................... 9
3UNIT DESCRIPTION................................................................................................................. 10
3.1 PRINCIPLE OF FUNCTION ............................................................................................................10
3.2 UNIT OVERVIEW .......................................................................................................................10
3.3 SCOPE OF DELIVERY...................................................................................................................11
3.4 SPECIFICATIONS AND AREAS OF APPLICATION .................................................................................12
3.5BOB-OPERATION .....................................................................................................................15
3.6 INSTALLATION REQUIREMENTS ....................................................................................................15
3.7 MAINTENANCE SETS..................................................................................................................17
4GENERAL SAFETY ................................................................................................................... 18
5INSTALLATION ....................................................................................................................... 22
5.1 WALL MOUNTING WITHOUT CASE ................................................................................................22
5.2 WALL MOUNTING WITH CASE......................................................................................................22
5.3 WATER CONNECTIONS...............................................................................................................23
5.4 OPERATING WITH PRESSURE-LESS SAMPLE WATER ...........................................................................24
6ELECTRICAL INSTALLATION .................................................................................................... 25
6.1 CONNECTING THE SUPPLY VOLTAGE ..............................................................................................26
6.2 CONNECTING THE RELAY OUTPUTS ...............................................................................................27
6.3 CONNECTING THE DIGITAL INPUTS ................................................................................................29
7COMPONENTS ....................................................................................................................... 30
7.1 LOCATION OF COMPONENTS.......................................................................................................30
7.2 DISPLAY AND KEYBOARD.............................................................................................................31
8CONNECTING ADDITIONAL COMPONENTS............................................................................. 36
8.1 CONNECTING A FLOW MONITOR ..................................................................................................36
8.2 CONNECTING A WATER METER ...................................................................................................36
8.3 CONNECTING AN EXTERNAL CONTROLLER.......................................................................................36
8.4 CONNECTING A BUZZER .............................................................................................................36
8.5 CONNECTING AN IMMERSION PUMP ............................................................................................36
8.6 CONNECTING A CONTROL UNIT ...................................................................................................36
8.7 CONNECTING AN EXTERNAL FLUSH UNIT .......................................................................................36
9CONFIGURATION ................................................................................................................... 37
9.1 WORKS SETTINGS .....................................................................................................................37
9.2 CONFIGURATION ASSISTANT .......................................................................................................37
10 OPERATION............................................................................................................................ 45

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Introduction
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
10.1 MENU STRUCTURE ................................................................................................................... 45
10.2 MAINTENANCE FUNCTIONS........................................................................................................ 48
10.3 ACTION IN EVENT OF POWER LOSS............................................................................................... 48
10.4 SD-CARD ............................................................................................................................... 48
11 MAINTENANCE AND SERVICE................................................................................................. 50
11.1 CLEANING THE MEASURING CHAMBER.......................................................................................... 50
11.2 CHANGING THE DOSING-PUMP-CASSETTE ..................................................................................... 51
11.3 CHANGING THE REAGENT BOTTLE................................................................................................ 52
11.4 CALIBRATING THE UNIT ............................................................................................................. 52
11.5 CHANGING THE BATTERY........................................................................................................... 52
11.6 SOFTWARE UPDATE ................................................................................................................. 53
12 ERROR ANALYSIS ................................................................................................................... 54
12.1 FAULT FINDING........................................................................................................................ 54
12.2 DIAGNOSIS FUNCTION............................................................................................................... 55
13 SPARE PARTS ......................................................................................................................... 57
14 MEASUREMENT RANGE OF OUR REAGENTS .......................................................................... 59
15 CALCULATION TABLE FOR COMMON UNITS OF WATER HARDNESS ....................................... 60
16 INSTRUCTIONS FOR DISPOSAL ............................................................................................... 60

8
Introduction
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
1Introduction
Thank you for buying the analyzer from the product range of on-line water quality
monitors.
The analyzer belongs to the most modern systems on the market and sets new standards:
Simple to operate
Quick commissioning via menu
Easy maintenance and cleaning
Intelligent measuring-chamber design
High measuring accuracy
Self calibrating
The analyzer for the monitoring of water quality is part of a water preparation system. This
handbook is tailored for both the manufacturers and the operators of such equipment.
This handbook contains instructions for the use and operation of the analyzer. Please read
these instructions carefully before operating the unit.
We recommend that this handbook is kept near the unit for quick reference although we
have made every effort to make the unit, as far as possible, self explanatory in its
operation.
The unit should only be operated in harmony with the instructions in this handbook.
We will not accept any liability for damage caused by operator error or failure to follow the
instructions found in this handbook.
Some details and instructions in this handbook may vary slightly from the delivered unit.
We reserve the right to make technical changes to improve our products without prior
notice.
The analyzer from the product range is an on-line analyser that automatically recognises
and warns of the increase in water hardness in a water preparation system. When used
with a water grading system, the professional monitors can control the minimum and the
maximum hardness (for drinking water for example).
This is not a system to prevent increase in water hardness.

9
Analyzer at a Glance
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
2Analyzer at a Glance
The on-line Analyser analyzer has the following features:.
Reliable, exact and fully automatic analysing unit with matching reagents for
measuring the total hardness in the range 0.02-30 °dH (3.6- 5349 µmol/l)as well as
carbonate hardness in the range 0.3 –9 °dH (53.5 –1605 µmol/l)
Measurement of all parameters with one sensor.
Simple commissioning with configuration assistant.
BOB-Operation(72h)-salt boiler
Self calibrating and self monitoring
High measuring accuracy
Easy maintenance and cleaning.
Compact design 300x300x140mm.
Multi-coloured and multi-lingual graphic display.
4 programmable relay outputs.
1 analogue output 0.4-20mA.
2 programmable digital inputs.
Optional reagent level monitor.
Measurement data storage.
Diverse programmable alarm functions
Connection possibilities for: water-meters; turbines; pre-coolers; rinsing valves
External operation by means of external controller
Many programmable functions for the inputs and outputs
Monitoring of 2 limit values
No condensation
CAN- interface
Software updates by means of SD-card possible
Open wall mounting or wall mounting in protective casing (optional)
Supply voltage 85-264 Vac, 47 –63 Hz or 24V AC/DC

10
Unit description
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
3Unit description
The on-line hardness monitor analyzer is a compact analysis unit which is able to monitor
the presents of various chemicals in water. In these instructions, only the on-line
monitoring of total hardness and carbonate hardness are described.
3.1 Principle of Function
The analyzer is an on-line analyser for the automatic investigation of water parameters by
the colorimetric test method. Following the introduction of a reagent into the water sample
,a colour reaction occurs. Depending on the chosen method, the unit either evaluates the
intensity of the colour or ascertains the value at which the colour changes. From this
information the analyzer calculates the concentration of the chemical content. The unit can
only ascertain one parameter. The method and the measurement range are determined by
the reagent.
3.2 Unit overview
The analyzer has two variations:
1. Analysis unit on wall mounting
The Analysis unit consists of a control unit and a measuring chamber. Both are
mounted on a wall mounting plate. This variation is completely functional and
includes the connections for the water inlets and outlets as well as the holder for
the reagent bottle. (Fig. 1)
2. Analysis unit in protective case
In addition an optional plastic case is available to protect the unit in environments
where extreme levels of dirt and grease are expected. (Fig. 2)The Analysis unit on
the wall mounting plate is easily fixed in the protective case by 4 screws. If the
analysis unit and the protective case are ordered together, they will be delivered
assembled.
The analysis unit is operated by means of a menu, a graphic display and 6 keys on the
control panel.

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Unit description
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
Fig.1: Analyzer on wall mounting plate
Fig.2: Analyzer in protective housing
Description
analyzer on wall mounting plate
analyzer complete with housing
3.3 Scope of delivery
The analyser is delivered completely pre-configured and ready for connection. Before
installation, please check that all components are present and correct.
If you receive the analyser on a mounting plate, you will receive the following components:
Description
analyzer Basic unit on mounting plate or
analyzer with housing
Accessory kit with bottle connector
Operating Instructions (Italian, English or German)

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Unit description
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
3.4 Specifications and Areas of application
General Specification
Supply Voltage
230V (50-60Hz) or 24V alternating current/direct current
Power consumption
24 VA (in operation)
3.5 VA (standby)
Protection class
Open wall mounting IP43
Mounting in case IP 54
Environmental temperature
10°C –40°C
Measuring water
temperature
5°C –40°C
Humidity
20 -90 % RF
(without ice or condensation)
Water inlet pressure
ca. 0.5 - 5 bar (max.) (Recommended 1 - 2 bar)
Water inlet in general
clear, colourless, free of solid particles, without gas
bubbles
Requirements of the water
quality during measurement
of the water hardness
pH:
4 –10
Iron:
< 3 ppm
Copper:
< 0.2 ppm,
Aluminium:
< 0.1 ppm
Manganese:
< 0.2 ppm
Acid capacity:
KS4.3 < 5mmol/l
Technical Data
Installation
Wall mounting in closed rooms
Dimensions
Without case:
280x360x114 mm (WxHxD)
With case:
300x380x120 mm (WxHxD)
Weight
Without case:
ca. 2.1 kg
With case:
ca. 4.0 kg

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Unit description
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
Analysis Qualities
Measurement method
Titration method with colour change
Measurement range
Total hardness
°dH:
0.02
- 18
(max. 30)
°TH / °fH
0.04
- 32
(max. 53.5)
°TH / °fH
0.04
- 32
(max. 53.5)
°e
0.03
- 22
(max. 37.5)
ppm
0.4
- 320
(max. 535)
mmol/l
0.004
- 3.2
The measurement range of the unit is defined by the reagent used.The full
measurement range of the total hardnessfrom0.004 to3.2 mmol/l is acquired by
the application of different reagents (see page 59). Reagents dictating the
carbonate hardness in the range from 0.9 dH to 9.0dH are available. Restrictions
apply to the maximum indicated measurement range upper limits respecting the
environmental temperature and accuracy.
Accuracy
Measurement accuracy:
+/- 5% of the upper value of the respective reagent (see page 59.)
Repetition accuracy:
+/- 2.5% of the upper value of the respective.
Please note: The accuracy of the measurements may be adversely
affected by the impurity of the water. In such cases, we recommend that
you take a hardness measurement by hand titration and then calibrate
the analysis unit to this value.
Reagent consumption
ca. 0.20 ml / analysis depending on the hardness of the water
Measurement duration
ca. 3 minutes depending on the hardness of the water
Number of analyses
ca. 10,000 analyses / 500 ml reagent by low hardness. The consumption
is dependent on the measured water hardness and the reagent used.
Expiration date of the
reagent
At least 2 years
Water consumption
ca. 1l/analysis at 2 bar
The water consumption varies according to pressure and flush-time.

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Unit description
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
Inputs / Outputs
4 Relay outputs
max. 250 V ac / V dc 4A
as potential free output NC/NO
the relays offer the following functions:
Threshold alarm 1
Threshold alarm 2
Unit error
Analysis / Cooler / Pump
Reagent shortage
2 Signal input
Galvanic separated contact input
Input 1: Cancel error
Input 2:
Analysis start
Water meter
Flow monitor
Turbine
AnalogueOutput
0 –20 mA / 4 –20 mA
Resolution: < 100 μA
max. working resistance: 750 Ω
CAN Interface
Adjustable baud rate: 10.20 K bit/s
CAN 2.0A compatible
Applicable in Multi-master Systems
3 adjustable frames:
Test result transmission
Status transmission
Control and Status request

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Unit description
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
Maintenance Intervals
Every 6 months
Cleaning of the measurement chamber
(in the event of higher environmental /
water temperatures or water with higher
biotical content, cleaning intervals need to
be reduced accordingly.)
Every 50,000 Analyses
Installation maintenance set.
3.5 BOB-Operation
The abbreviation BOB stands for „Betrieb ohne Beobachtung“(which means „Operation
without Observation“).This a special term found in the German ‘TÜV’ rules for boiler-
houses. These rules require that an analysis unit has enough reagent last for 72 hours for
unmanned operation.
A relay output can be used, for example to activate an alarm if the reagent level is below
that necessary for the minimum time interval.
The analysis unit is specially designed for ‚BOB‘-operation. Boiler systems require an
accurate monitoring of water quality, especially the hardness of the boiler supply water
according to the technical guide-lines for boiler systems TRD 604 (Technische Regeln für
Dampfkessel, published by the‘ TÜV’).
The analysis unit calculates the consumption of reagent to make sure that enough reagent
is available for reliable measurements during the period of unobserved operation.
If the next 72 hour ‘BOB’-operation cannot be reliably guaranteed, the alarm “Reagent
shortage” will be activated. Please check to see that the reagent is within its best before
date. Only use fresh reagent.
3.6 Installation requirements
Reagents / Maintenance sets / Accessories
There are various reagents available for the analyzer that cover a wide range of
measurement. When choosing the correct reagent, it is important that the hardness range
to be monitored lies in the middle of the measurement range of the reagent.
In all, the analyzer covers the measurement range of3.6 - 5349 µmol/l. There are 11
reagents available:

16
Unit description
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
The order numbers of the reagents (500ml) are shown in the following table.
®professional: with display of water hardness and range of measuring
N.B.: ®e ®XII indicator with maximum set point and LED water good / water non good
Water Hardness
W1234-455
500S/500
, XII: 0,02°dH / 0,04°f Professional: 0,02-0,12°dH / 0,04-0,21°f
W1234-456
500/500
, XII: 0,05°dH / 0,09°f
Professional: 0,02-0,2 °dH / 0,04 - 0,36°f
W1234-457
501/500
, XII: 0,1°dH / 0,18°f
Professional: 0,03-0,3°dH / 0,05-0,54°f
W1234-458
502/500
, XII: 0,2°dH / 0,36°f
Professional: 0,06-0,6°dH / 0,11-1,07°f
W1234-459
503/500
, XII: 0,3°dH / 0,54°f
Professional: 0,09-0,9°dH / 0,16-1,61°f
W1234-460
505/500
, XII: 0,5°dH / 0,9°f
Professional: 0,15-1,5°dH / 0,27-2,68°f
W1234-461
510/500
, XII: 1,0°dH / 1,8°f
Professional: 0,3-3,0°dH / 0,54-5,36°f
W1234-462
520/500
, XII: 2,0°dH / 3,6°f
Professional: 0,6-6,0°dH / 1,07-10,71 °f
W1234-463
530/500
, XII: 3,0°dH / 5,4°f
Professional: 0,9 - 9,0°dH / 1,61-16,07°f
W1234-464
550/500
, XII: 5,0°dH / 9,0°f
Professional: 1,5-15°dH / 2,68-26,79°f
W1234-465
600/500
Professional: 3,0-30°dH / 5,36-53,57°f
Carbonate Hardness
W6050-710
C-710/500
, XII: 1,0°dH / 1,8°f
Professional: 0,3-3,0°dH / 0,54-5,36°f
W6050-715
C-715/500
, XII: 1,5°dH / 2,7°f
Professional: 0,45-4,5°dH / 0,80-8,04°f
W6050-720
C-720/500
, XII: 2,0°dH / 3,6°f
Professional: 0,6-6,0°dH / 1,07-10,71°f
W6050-730
C-730/500
, XII: 3,0°dH / 5,4°f
Professional: 0,9-9,0°dH / 1,61-16,07°f
N.B. Indicators 530/500 and above are very temperature sensitive and it may be necessary
to correct the test results with reference to the environmental temperature.

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Unit description
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
The reagents are available in 500ml bottles. This amount is sufficient for about 10,000 analyses at low
hardness. The number of analyses is dependent upon the hardness level and the reagent used.
Reagents that are not in use should be stored in a cool dark place. Avoid direct sunlight.
The shelf life of the reagents is at least 24 months if stored below 25°C and in a dark
place. High temperature sand direct sunlight can significantly reduce the shelf life!
3.7 Maintenance sets
The analysis unit needs very little maintenance. There is a maintenance set available for the analysis
unit. It is recommended to change the dosing-pump cassette, the reagent pipes and the ‘o’-rings after
50,000 analyses or every 6 months.
It is also recommended that the measuring chamber is regularly cleaned –at least every 6 months.
The cleaning set is offered for this purpose. This set contains everything necessary in the way of
equipment including the cleaning fluid.
Article
Order number
Maintenance set for the professional
111 906
Cleaning set for PROFESSIONAL
Cleaning set for the chamber
Road transport:
200 013
Air transport:
200 013S

18
General Safety
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
4General Safety
Please observe the following safety instructions before operating the unit.
We wish to inform you of the appropriate use, installation and maintenance of the analyzer
in order to ensure a safe, problem free operation. Please take careful note of the possible
dangers that may result from incorrect use. The safety symbols are explained and
fundamental instructions given. The reading of this chapter does not replace technical
training. The installation and the commissioning of this unit should only be carried out by
an authorised and qualified person.
This handbook describes the installation and the operation of the on-line analyzer for the
automatic ascertainment of water hardness.
This unit may only be used in accordance with the conditions described in this handbook. In
particular, the unit must be protected from wet and damp. The protection class of the unit
on an open mounting plate is IP43. When mounted in a protective case, the protection class
is IP54. Splashing or condensation should be avoided. The unit may only be used for the
specified purpose. During installation and operation of the analysis unit, the relevant
regulations (e.g. EN, DIN, VDE, UVV) should be observed.
The analysis unit should only be used to ascertain the total water hardness or the
carbonate hardness in the sample water. Correct operation can only be warranted if the
manufacturers recommended reagents and spare parts are used.
Changes to the electrical wiring and the programmes should only be carried out by a
designated and qualified person.
The connecting cables should be kept as short as possible and not laid next to, or in close
proximity to, power cables. Analysis may be adversely affected by strong electromagnetic
fields. In this case special protective measures should be applied. Correct earthing is
essential.
It is recommended to have these operating instructions at hand during the initial operating
of the equipment in order to get an immediate understanding of the functions. Since the
various ideas build upon the previous information it makes sense to work through the
chapters in their printed order.
If any problems occur or questions arise during the operation of the analysis unit, you can
get assistance from your supplier. Try to locate the problem as accurately as possible or to
record the action and conditions that lead to the problem. This makes speedy assistance
possible.
Safety Instructions and Symbols
In this handbook you will find various safety details that warn of possible dangers
associated with the use of the analysis unit. This applies to specific dangers to:

19
General Safety
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
persons,
this product or connected equipment and installations,
working environment.
Various symbols in this handbook point out special dangers for the purpose of protecting
persons and equipment from injury or damage. Please read the whole text completely
before you start working.
This symbol warns of possible danger of injury.
This symbol warns of a general risk to the unit, the installation, the
materials, the working area and the persons therein.
This symbol warns that the parts may be under pressure.
This symbol warns of the danger of electrocution as well as damage to
electrical parts.
This symbol warns of a general risk and the need to take note of certain
conditions.
This symbol is to make the user aware of useful tips to improve the
understanding of this unit.
Working with pipes that are under pressure
Maintenance and repair work are only to be carried out by qualified persons.
Before you begin, make sure there is no pressure in the pipes.
Pipes, joints and seals are to be checked regularly and where necessary, or as a
precautionary measure, replaced. Maintenance intervals should, in any case, be
observed.
Danger
Warning
Pressure
Voltage

20
General Safety
Waltron User Manual 101-048-B.1
6051 Hardness Analyzer
Before operating after maintenance, ensure that all joints, fittings and seals are
correctly fitted. Check that all casing parts are closed and filters or other parts
connected to the unit are correctly fitted.
Remove all maintenance tools, parts and other materials before operating the
system.
Clean the unit and wipe up any fluids that have run out thereby leaving the unit in a
clean condition.
Check that all safety systems are in position and working.
Transport
Protect the analysis unit during transport. Remove any remaining fluids. Remove the
reagent bottle and firmly close it to avoid any spillage.
Transport unit carefully and do not throw it.
Avoid direct sunlight, moisture and high temperatures.
Immediately on delivery, check that the unit is complete and has no damage. Even though
the unit is well packed, damage can occur during transport. In the event of damage, inform
the deliverer immediately.
Storage
Do not store for more than a year on account of the guarantee.Only store the analysis unit
in a cool, dry place with temperature between 5 and 45°C and avoid direct sunlight.
Scope of Delivery
Check that all the ordered components are present.
Damage or missing parts are to be reported within 7 days of delivery. Later claims will not
be accepted.
Installation
The installation should be carried out in the following order to avoid errors:
Install the analyser in a dry and easily accessible place.
Fix securely according to the mounting instructions.