Complete Water Analysis for the

Food Industry

Your Partner for Water Analysis
in the Food Industry
At Hach, we understand your water needs when it comes to ensuring the highest levelsof product quality, consistency and safety. Since 1947, Hach Company has designed,
manufactured, and distributed world-class instrumentation, test kits, and reagents for testingwater quality in a variety of food industry applications, including plant influent, boiler feedwater,
product loss reduction, and effluent water treatment.
We invite you to take a look at our comprehensive line of product solutions and services.
They’re the most accurate and dependable products you can buy.
Hach offers:• On-line process instrumentation and reagents• Laboratory equipment, reagents, and supplies• More EPA-approved methods than any other company• Portable test kits and field instruments• Automatic samplers and flow meters• Local sales and service teams• Service partnership programs and customized training

Whether your goal is to maintain permit compliance, prevent product loss, or optimize water
treatment, Hach has expert answers and complete solutions to help you succeed.

2Key Measurement Parameters
3

Lab

Process

Cl

pH

Turb

Cl

pH

Turb Chem

RTC Samp

2

TOC

Cl

pH

Turb

Titr

Cl

pH

Turb Chem

C

1
Cl

pH

Cl

pH

B
Turb

DO

PO4

TOC

DO

TOC

Titr

pH

Cond ORP

pH

Cond

D

TOC Sludge

SS

Cond

Nutr

DO

pH

Cond

Nutr

DO

pH
Micro

Na

A

Turb ChemCl

Cond Hard

pH

TOC

Turb

Cl

Cond Hard

pH

TOC

Turb

1 Delivery of StockA Production Water Treatment

2 Production

B Steam and Utilities Treatment

3 Finished GoodsC Neutralization
D Wastewater Treatment

Chem Chemistry

Nutr

Nutrients

Sludge Sludge

Cl

Chlorine

ORP

Oxygen-Reduction Potential

Na

SodiumCond

Conductivity

pH

pH

SS

Suspended Solids

DO

Dissolved Oxygen

PO4

Phosphate

Titr

Titration

Hard

Hardness

RTC

Real Time Controller

TOC

Total Organic Carbon

Micro

Microbiology

Samp

Sampling

Turb

Turbidity3

Challenges for
Production Water Treatment••••

Process control to ensure high product quality, consistency and safety
Process optimization to control costs
Comply with environmental regulations
Protection of equipment

Challenges for
Steam and Utilities Water Treatment•••

Optimization of steam generation cycles and condensate recovery
to reduce costs and save time
Optimization of production processes by pure steam
Protection of equipment, i.e. preventing corrosion or scaling

Challenges for
Effluent and Wastewater Treatment••••

Comply with environmental regulations
Optimization of process operation, i.e. effective control of aerationin treatment to reduce energy costs and ensure high quality
Optimizing chemical usage to control costs and ensure treatment process stability
Protection of equipment, i.e. preventing corrosion

Key Parameters for Production Water Treatment
Chlorine

pH / ORP

Excessive chlorine harms membrane-based filtration systems
and alters taste. Too little chlorine creates an opportunity for
microbiological growth. Close monitoring of chlorine levels
preserves filtration membranes and prevents the formation ofharmful bacteria. Many disinfection programs employ a chlorine,
chlorine dioxide or ozone strategy to prevent microbiological
growth. Whether raw water, process water, rinse water, or
effluent water, constant monitoring of disinfection parameters
helps ensure that processes meet product safety, consistency
and environmental regulations.

pH and ORP commonly measure control processes throughout
a facility. pH adjustment prior to filtration prevents precipitationof dissolved materials such as silica and calcium carbonatethat clog filters. Maintaining proper pH also ensures maximum
effectiveness and minimizes the costs of chemical additives,
such as disinfectants. ORP monitors the effectiveness ofchlorine removal (activated carbon filtration) and controls dechlorination chemical addition, protecting upstream RO units
and reducing chemical costs.

Conductivity/Total Dissolved Solids (TDS)

4

Conductivity or TDS, the most widely used control parameter
for CIP applications, measures caustic or acidic solution
strength. Conductivity also monitors process completion
to identify product variation and control chemical additives.
Inductive conductivity, sometimes referred to as electrodelessor toroidal, remains the industry’s primary choice due to sanitary
3A design standards. Conductivity also determines filtration
media efficiency by gauging the dissolved, ionic constituents
before and after the filtration process.

Turbidity
Depending on the water source, turbidity varies dramatically.
Often, filtration systems remove excess turbidity and otherminerals. While conductivity also monitors dissolved solids,
on-line turbidity measurement is the preferred method tomonitor filtration efficiency and control backwashing cycle
frequency.

Key Parameters for Effluent & Wastewater Treatment
pH

Phosphorus Removal

The continuous monitoring of pH plays an important role inalerting a facility of necessary process adjustments well inadvance of a violation. Additionally, pH monitoring at various
stages within the wastewater treatment process is critical for
maintaining bugs’ health, optimizing chemical usage, andpreventing corrosion to control costs.

Phosphorus does not have a gaseous form, so it must be
converted from soluble form to particulate form for removal.
Chemical phosphorus removal uses iron or aluminumcompounds to combine with and precipitate out phosphate.
Over treating water with these chemicals, while an effective
method for ensuring permit compliance, will results in
wasted chemical spend and increased sludge production.
This parameter is easily controlled in real-time, meaning thatchemical dosing is based on the volume of phosphorus present
and not a single set point.

Dissolved Oxygen (DO)The aeration and activated sludge processes require a steadysupply of oxygen to function effectively. Insufficient oxygen
results in process inefficiency, producing foul-smellingintermediate products and incomplete reactions. Too muchoxygen results in excessive energy loss. Since aeration andactivated sludge processes constitute up to 70% of a wastewater
plant’s energy costs, precise monitoring and control of oxygen
allows effective and efficient functionality.

Turbidity and Total Suspended Solids (TSS)
Turbidity and TSS measurements are commonly used for
wastewater discharge reporting. They also control dissolved
air flotation systems, dewatering equipment, and clarifierinfluent. When applied to polymer feed systems, the additional
control often results in significant polymer savings. On-line
monitoring and regular sampling protocols reduce the potentialof putting excessive solids into the wastewater stream and help
prevent permit violations and associated fines.

Nitrogen Removal
Nitrogen enters wastewater treatment plants as Ammonia andis typically removed biologically. Using aeration, the nitrification
stage utilizes aerobic bacteria to turn Ammonia into Nitrite andthen Nitrate. Nitrogen removal happens as bacteria consume
the Oxygen from Nitrate turning it into Nitrogen gas thatescapes into the atmosphere. Aeration can account for 70%
of operating costs because most wastewater treatment plants
run their blowers full speed 24 hours a day, 7 days a week inorder to meet permit limits. Using Real-Time control solutions
to adjust blowers based on Nitrite and Nitrate levels cansignificantly reduce energy costs.

Dissolved Air Flotation (DAF)
In food processing plants, a DAF is often used to reduceloadings and clarify wastewater. Tiny air bubbles are released
into the tank causing small particulates to float to the top where
they are skimmed off. To remove larger suspended solids,
coagulant is dosed into the feed water—this helps to speed up
clumping and settling.
Typically, chemical is dosed to the DAF based on flow rate, but
dosing based on flow ignores the solids concentration. This
leads to under- and over-dosing which could waste chemicals,
increase hauling costs, and result in fines. Real-time data
helps facilities dose coagulant based on solids concentrations,eliminating over treating and reducing total costs.

Organics
In wastewater with high organic loads, a facility uses chemicaltreatment and physical processing to reduce load levels to those
acceptable for either re-use or discharge into the environment.
Efficient management of organics typically involves Biological
Oxygen Demand (BOD) for reporting purposes. However, since
the test takes 5 days, surrogates such as Chemical Oxygen
Demand (COD), Total Organic Carbons (TOC), and Spectral
Absorption Coefficient (SAC) may be used. These offer quicker
test results and early detection of upsets or spills for reduced
operational and maintenance costs. COD, a relatively simple
lab procedure, reduces testing time to 2 hours. On-line TOC
monitoring provides results every 7 minutes and on-line UV254(SAC) monitors continuously for real-time control.

Key Parameters for Product Loss Reduction
Organics
Lost product reduction has been a high-ranking objective in thefood industry for a long time. Losing otherwise salable productdown the drain adds significant cost beyond the product loss
itself in the form of higher energy, water, and treatment costs.
Using real-time organics monitoring specifically designed forthese harsh applications as a management tool allows plants
to view and quantify the product in process streams andwastewater, allowing for more informed process control andincident response ultimately leading to reclaimed profit thatwould have otherwise been lost.
PL control allows customer to take immediate/quickcorrective actions. A quick response is essential to succeedin PL control.

5

Total Plant Coverage in the Lab
Hach lab instruments are designed to help you easily monitor your water quality at all stages in your plant;
from influent to wastewater, process water to cooling water. Our reliable and easy-to-use lab
and portable products will help you monitor production and meet compliance objectives.

PHOTOMETRIC AND COLORIMETRIC
DR 1900 Spectrophotometer• The lightest and most compact portable spectrophotometer• Even in dusty or wet conditions, testing is easy
• With the highest number of preprogrammed methods and an easy-to-use interface

DR 3900 Spectrophotometer• Easy step-by-step testing procedure• Elimination of false readings• Accurate results every time

DR 6000 Spectrophotometer• Accessories for High Volume and High Accuracy Testing Needs• Guided Procedures and Elimination of False Readings• Automatically Avoids Errors

TNTplus® Bar-Coded Chemistries
TNTplus vials work exclusively with the DR 6000, DR 3900, and DR 1900* Spectrophotometers.
• Error free and fast—instrument automatically detects and runs the correct method• Easy, accurate recognition—color-coded parameters and ranges• Best results—10 measurements in one rotation, eliminating outliers; optically superior glassware*Barcode reading, vial spinning, and outlier rejection features not available on DR 1900.

DR 900 Colorimeter

DR300 Pocket Colorimeter• Fastest and simplest water testingfor the most demanding fieldenvironments• Robust and waterproof design withstanding
extreme conditions• Field ready in every way possible• Reducing errors and saving time by eliminating
manual data entry with optional Bluetoothconnectivity• Intuitive user interface• Simple data communication• Accurate and reliable measurement• Simple and intuitive operation to reducemanual error and allows usage under
extreme conditions

6

SL1000 Portable Parallel Analyzer• Perform multiple tests faster• Less variability• Less hassle

TU5 Series Laboratory Turbidimeters
Turbidimeters with 360° x 90° Detection™ deliver unprecedented
confidence that a change in your reading is a change in your water.
• Matching lab and online results and validate your measurement
results• Fast measurements• Available Claros Mobile Sensor Management enables remote
access to instrument data
• Groundbreaking 360° x 90° Detection™ Technology

Hach Test Kits
From beakers to colorimeters, everything you need is supplied in
Hach Single- and Multi-parameter Test Kits.
• Pre-measured reagents• Accurate color matching• Step-by-step instructions• Upright reagent storage• Rugged, chemical-resistant cases

Hach Test Strips
Easy to use for fast and reliable water quality screening.

ez COD® Recycling for Hach COD Vials
Reduce COD reagent recycling costs and simplify the task of recycling.
• One low price—includes container, pickup, and recycling fees
• Hassle free—place entire vial into receptacle• Environmentally friendly—Silver and Mercury are reclaimed• Convenient—order reagents and recycling from one source• Right sized—pick from three programs based on yourannual COD waste output (5, 20, and 55 gallons)7

ELECTROCHEMICAL
HQd Meters and IntelliCAL™ Probes
Use a single handheld HQd meter and interchangeableIntelliCAL probes for quick, simple, and reliable measurements.
• Designed for your water applications, the Hach HQd smart
probes automatically recognize the testing parameter, 		calibration history, and method settings to minimize errors
and set-up time.
• Hach gives measurement flexibility and ease of operation with
its HQd portable and benchtop meter and full suite ofinterchangeable IntelliCAL laboratory and field probes fortesting Conductivity, DO, ORP, pH, Ammonia, and many more!

MP Portable MetersHach’s MP Meters offer single-handed, portable operation for spot checking thepH, ORP, conductivity, resistivity, Total Dissolved Solids (TDS) and temperature ofclean water in production or as a quality check. Sensors are built into an integrated
sample cup, allowing for efficient, high-throughput testing of samples from spigots
or dip testing. MP Meters are rugged enough for daily process checks in challenging
environments.

TITRAMETRIC AND TOTAL OXIDANTS
Titralab® AT1000 and KF1000 Series
The Titralab AT1000 Series laboratory analysis systems are
one touch, automatic analyzers, covering both Potentiometric
Titration (AT1000 Series) and Karl Fischer volumetric Titration(KF1000 Series) with pre-set methods that can quickly deliveraccurate and reliable results straight from the box, allowing
anyone in the laboratory to immediately perform accurate andreproducible titrations.

Hach Digital Titrator
Get accurate (±1%), convenient titrations without the bulk, fragility, or waste of aconventional burette. Test for eighteen parameters including chlorine, hardness, and iron.
Uses interchangeable titrant cartridges.

8

FLOW AND SAMPLING
AS950 Peristalitic Samplers
Hach AS950 Automatic Samplers collect and store unbiased representative water
samples for laboratory analysis. The AS950 is configurable to meet all sampling needs by
combining a controller, a base, a bottle set, accessories and sampling program features.
Every AS950 is equipped with a peristaltic pump with spring-mounted rollers that provide
long tubing life and a standard liquid detect sensor for best-in-class sample volume
accuracy. Additionally, the USB connection and an auxiliary port for pulse or 4-20 inputs
are standard.

MICROBIOLOGY
Microbiology Media
Hach’s ready-to-use Microbiology Media eliminates measuring, mixing, and autoclaving
necessary to prepare media. Available for testing/ measuring total coliforms, E. coli, yeast
and mold, Heterotrophic bacteria, PRY, and more.

LuminUltra Total Living Biomass Assessment (ATP)Microbiological testing solutions provide feedback on contamination sooner
for proactive control!
• Detect total active microorganisms in any type of sample• Results in minutes - not hours or days - for real-time results• Lab or field operable for maximum flexibility

HACH CHEMISTRIES AND STANDARDSHach Chemical Reagents
A complete system that provides confidence in your test results.
Chemical reagents include chlorine, ozone, CO2, O2, alkalinity,
hardness and many more.
• Formulated to minimize interferences, test complexity
and analysis time
• Designed for maximum stability and consistency• Certified by rigorous ISO process procedures9

Production Water Treatment
Proper treatment and conditioning is essential for water as it enters any production process.
The water used in production lines of food facilities must not only meet FDA drinking water standards,
it must be treated to remove additional minerals and chemicals which could impact taste and production
processes. Hach’s on-line process instrumentation provides reliable, real-time readings so
you can feel confident your water meets your expectations.

ALKALINITY
EZ Series Alkalinity Analyzers
Smart automatic features for validation, priming, and cleaning providing excellent
analytical performance and maximized uptime.
• Rugged mainframe with compact footprint• Flexible adaptation of standard measuring range through different calibration ranges
or internal dilution options• Analysis of up to eight sample streams• Multiple options for determination of Alkalinity available

AMMONIA
5500sc Ammonia Monochloramine Analyzer
The 5500sc Ammonia Monochloramine Analyzer provides all the information you need toeliminate nitrification events and taste and odor issues, giving you total confidence in your process.
• An easy-to-operate, low-maintenance solution to help you maintain theproper chlorine to ammonia ratio.
• A user-friendly interface, color coded reagent bottles and at-a-glance
status lights will offer peace of mind the instrument is up and running.
• A pressurized system to eliminate the hassles and maintenance thatpumps can cause.

FREE / TOTAL CHLORINE
CL17sc Colorimetric Chlorine Analyzer
Take control of challenging water treatment processes with an analyzer that maintains
accuracy across a wide range of sample conditions.
• Reliable, accurate colorimetric chlorine analysis using DPD chemistry• Monthly maintenance completed in minutes• Comprehensive diagnostic features help you verify and troubleshoot quickly
and efficiently• Available Claros Mobile Sensor Management enables remote access to chlorine
and instrument data
• Reagent-free solutions for chlorine, chlorine dioxide, and ozone measurements
also available

CLF10 sc and CLT10 sc
Free and Total Reagentless Chlorine Analyzers
Hach’s answer to reagentless amperometric chlorine measurement.
• Compatible with Hach’s “Plug-and-Play” Digital Controllers• Real time process control• EPA compliant according to Method 334.0

10

CHLORIDE
EZ Series Chloride Analyzers
The EZ Series Chloride Analyzers offer multiple options to monitor Chloride in water.
• Rugged mainframe with compact footprint• Flexible adaptation of standard measuring range through different calibration ranges
or internal dilution options• Analysis of up to eight sample streams

TURBIDITY & SUSPENDED SOLIDS
TU5300sc/TU5400sc Online Laser Turbidimeters
Turbidimeters with 360° x 90° Detection™ deliver unprecedented confidence thata change in your reading is a change in your water.
• Matching lab and online results and validate your measurement results• Fast measurements• Available Claros Mobile Sensor Management enables remote accessto instrument data
• Groundbreaking 360° x 90° Detection™ Technology

FilterTrak 660™ sc Laser Nephelometer
The laser turbidity method used in the FilterTrak 660 sc Laser Nephelometer makes
ultra-low measurement of turbidity possible to optimize RO filtration systems.
• 0.0 to 5.0 NTU range• Detects submicron-size particles, a precursor to larger particles

SP 510 Hardness Monitor

HARDNESSThe Hach SP 510 Hardness Monitor continuously monitors water systems to provide
an alarm when total hardness exceeds a pre-set limit. By performing an analysis every
two minutes, the SP 510 monitor can establish an automatic or semi-automatic system
for water softener regeneration.
• Low maintenance—operates unattended for two months• Low reagent consumption• Rugged, lightweight, and self-contained

EZ Series Hardness Analyzers
The EZ Series Online Analyzers offer multiple options to monitor Total Hardness
and Calcium Hardness in water.
• Rugged mainframe with compact footprint• Flexible adaptation of standard measuring range through different calibration
ranges or internal dilution options• Analysis of up to eight sample streams• Multiple options for determination of Hardness available

11CONDUCTIVITY
3700 sc Digital Inductive (Electrodeless) On-Line Sensors
200 to 2,000,000 µS/cm
Monitor CIP and “push water” control with any of Hach/GLI’s Inductive Conductivity Sensors.
With no direct contact between the measuring element and the sample, they are contaminationand corrosion resistant.
• Rugged, non-fouling, low maintenance design• Wide measurement range• Eliminates polarization and electrode coating problems in harsh conditions.

Contacting Conductivity/Resistivity Sensors
0.057 to 200,000 µS/cm
Monitor membrane health and demineralizer beds with any of theseContacting Conductivity/Resistivity Sensors. Offered in a variety ofmaterials and mounting styles to exacting tolerances to accommodate
most configurations.

pH / ORP
pHD™ Digital Differential On-Line pH/ORP Sensors
For moderate- or high-conductive applications (>10 µS/cm) such as monitoringcooling water blowdown, drum boiler water, or raw water treatment.
• Field-proven differential electrode measurement technique offers better accuracy• Replaceable salt-bridge/protector simplifies maintenance and extends sensor life
• Sensor requires a Hach sc200 or sc1000 Digital Controller

TOTAL ORGANIC CARBON
Hach BioTector B7000 TOC Analyzer
In dairy applications, monitoring and managing product loss is a cost saving initiative.
The BioTector B7000 can help pinpoint the source of leaks so you can take corrective
action and minimize lost product. Determining the source of production leaks will also
help reduce organic load spikes in the wastewater treatment plant, saving the plant on
added treatment costs and preventing compliance issues.
• Superior Reliability—Typically 99.7% uptime• High Dependability—Patented two-stage advanced oxidation (TSAO)
technology handles even the most challenging applications• Smart Design—Self-cleaning technology and oversized tubing
eliminates filtration and prevents clogging and sample contamination

12

Steam and Utility Water Treatment
Monitoring pH, dissolved oxygen, silica and carbon is essential for keeping the power plant or boiler
running properly and protecting capital equipment. Hach’s process monitoring solutions for power plants
will help you keep your entire facility running by alerting you to potential water quality issues.

ATP

EZ Series ATP Analyzers
EZ Series ATP Analyzers that offer online monitoring of total bacterial and pathogen loadin water.
• Results within minutes• Complete ATP recovery, differentiating living biomass from non-living• Complies with ASTM D4012- 81• Low maintenance

EZ Series Hardness Analyzers

HARDNESSThe EZ Series Online Analyzers offer multiple options to monitor Total Hardness
and Calcium Hardness in water.
• Rugged mainframe with compact footprint• Flexible adaptation of standard measuring range through different calibration
ranges or internal dilution options• Analysis of up to eight sample streams• Multiple options for determination of Hardness available

pH / ORP
8362 High Purity Water System
Simple to integrate. Simple to operate.
• Works with sc200 platform• -1500 to +1500 mV ORP range• 0 to 4 bar (58 psi) pressure range

TOTAL ORGANIC CARBON
Hach BioTector B3500 Series Analyzer
Maximum uptime and reliability for TOC analysis in condensate applications. Using
patented technology, only requiring scheduled maintenance every 6 months, allowing
for dual stream monitoring, and having one of the most compact analyzer footprints, theHach BioTector B3500c delivers 99.8% uptime in condensate applications with the lowest
operating cost.
• Worry-free TOC• Lowest Cost of Ownership• Small footprint = Critical Wall Space Savings• Reagent Costs that Don’t Kill the Bottom Line• One Instrument for Multiple Streams

13Effluent and Wastewater Treatment
Hach’s Real-Time Control solutions optimize your treatment process, saving you operational and treatment costs
while helping you maintain permit compliance. Our technology is designed to optimize your entire treatment plant
including nutrient removal, sludge treatment and sampling. We offer complete solutions to give you confidence
in your water treatment, including predictive diagnostic software to monitor your waterer quality instruments
and a complete service package so you always have access to expert answers.

DAF TREATMENT
RTC-ST
Designed for DAF applications specifically for use in sludge
thickening devices such as dissolved air, the RTC-ST
automatically adjusts a desired specific polymer dosing rate
(g Polymer / kg TSS) based on the measured influent totalsuspended solids (TSS) concentration and feed flow rate. To
meet exactly your targeted TSS concentration a feedback
controller based on the TSS measurement in thickened sludge
can be activated.
If a suspended solids sensor input signal is disrupted, the
RTC–ST System automatically refers back to a predefined fixedpolymer dosing flow to ensure that your process is stable.

PHOSPHORUS REMOVAL
RTC-PThe RTC-P optimizes the phosphorus removal processes by adjusting chemical dosing in real time through the continuous
measurement of phosphate concentration and flow, allowing you to maintain consistent effluent phosphorus values and enhanceyour chemical phosphorus control system for unprecedented chemical savings.
Feel confident that you are staying compliant with your discharge permits and that you are saving time and money on yourtreatment process.

NITRIFICATION CONTROL
RTC-N
Designed specifically for continuously-aerated biological wastewater treatment plants, the RTC-N collects influent and effluent
ammonia concentration, flow rate, mixed liquor suspended solids and temperature to calculate the optimal DO set-point necessary
to control your aeration system based on your desired effluent ammonia set-point.

RTC-N/DN
Designed specifically for oxidation ditches and sequencing batch reactors, the RTC-N/DN optimizes nitrogen elimination bydetermining optimal times for nitrification and denitrification based on the continuous measurement of ammonia and nitrateconcentrations. Depending on your treatment system, the controller operates in one of three modes:• Nitrification control with an ammonia set point• Denitrification control with a nitrate set point• Nitrification and denitrification control with both ammonia and nitrate set points

14

TOTAL ORGANIC CARBON
Hach BioTector B7000 TOC Analyzer
A patented self-cleaning oxidation technology enables BioTector analyzers to easily
handle difficult samples and significantly reduce the maintenance schedule and costs
associated with traditional on-line measurement. BioTector analyzers eliminate build
up issues from salts, particulates, fats, oils and greases that lead to drift and highmaintenance. Configurations are available for TOC, TOC/TN, and TOC/TN/TP.
• Superior Reliability—Typically 99.7% uptime• High Dependability—Patented two-stage advanced oxidation (TSAO)
technology handles even the most challenging applications• Smart Design—Self-cleaning technology and oversized tubing
eliminates filtration and prevents clogging and sample contamination

FLOW AND SAMPLING
AS950 Peristalitic Samplers
Hach AS950 Automatic Samplers collect and store unbiased representative water
samples for laboratory analysis. Every AS950 is equipped with a peristaltic pump withspring-mounted rollers that provide long tubing life and a standard liquid detectsensor for best-in-class sample volume accuracy. Additionally, the USB connection
and an auxiliary port for pulse or 4-20 inputs are standard.

AMMONIAAMTAX™ sc Ammonia Analyzer
Hach’s Amtax sc digital on-site analyzer is designed for the high precision determinationof ammonium concentration in wastewater. The analyzer offers a high degree of
accuracy and needs only minimal supervision thanks to automatic cleaning andcalibration. Amtax sc instruments are ideal for installation directly on the tank edge, forfast reaction times in the closed loop control.

15

CONTROLLERS
Hach Digital Controllers
Use any of the digital family sensors with the sc200 Digital Controller that accepts up to two sensors
or the sc1000 Universal Controller that accepts up to eight sensors in any combination.
• Plug-and-play operation without special ordering or software configuration• Many communication options including MODBUS® and wireless modes
Hach’s Digital Sensor family includes ammonia, chlorine, chlorine dioxide, conductivity, DO, Nitrate,
ORP, ozone,pH, phosphate, sludge blanket level, suspended solids, turbidity, and UV absorption.

DISSOLVED OXYGENHach LDO® Model 2,
Optical Process Dissolved Oxygen Probe
Hach’s next generation LDO (Luminescent Dissolved Oxygen) Probe requires nocalibration for the entire 2 year life of the sensor cap, which means it is ready to startmeasuring your DO (Dissolved Oxygen) right out of the box. With an added cuttingedge 3D calibration procedure that is conducted prior to shipping, the probe will not
drift and is more accurate than ever before.

pH / ORP
pHD™ Digital Differential On-Line pH/ORP Sensors
For moderate- or high-conductive applications (>10 µS/cm) such as monitoringcooling water blowdown, drum boiler water, or raw water treatment.
• Field-proven differential electrode measurement technique offers better accuracy• Replaceable salt-bridge/protector simplifies maintenance and extends sensor life
• Sensor requires a Hach sc200 or sc1000 Digital Controller

ORGANICSUVAS sc Sensor, 1 mm, 2 mm or
5 mm, with sc200 Controller
Continuous UV 254 Absorbance/Transmittance measurements with the UVAS sc Sensor canbe used to protect plant treatment processes from high organic loads or for surrogate BOD,
COD, and TOC measurements, with repeatable, accurate measurement.
• On-line analysis allows treatment plants to operate more efficiently• Flow through design with no sample chamber and self-cleaning wipers

16

SLUDGE LEVEL
Sonatax sc Sludge Blanket Level Probe
Ideal tool to optimize sludge extraction, manage recirculation, and warn of potential
solid wash outs, or process upsets by continuously measuring the depth from thesurface or height from the tank floor. Maintenance is reduced with the probe’s
innovative wiper design. Automatic frequency adjustment provides superior accuracy.

TURBIDITY AND SUSPENDED SOLIDS
Solitax® sc Sensors• Accurate, color-independent measurements• Self-cleaning device prevents erroneous values• Easy one-point calibration• Sensors work with a Hach sc200 or sc1000 Digital Controller

VOLATILE FATTY ACIDS
EZ Series Volatile Fatty Acids (VFA) Analyzers
The EZ Series VFA Analyzers are single-parameter titrators designed specifically formonitoring (wet) anaerobic digesters.
• Direct titration with minimum volatilization• Continuous monitoring of the anaerobic process• Enabling higher loading rate for maximum methane production• Prevention of digester failure due to VFA accumulation17

Prognosys®
Predictive
Diagnostic System
Prognosys allows you to be proactive in your maintenance by alerting you to upcoming
instrument issues. Know with confidence whether changes in your measurements are due tochanges in your instrument or your water.
• Confidence in your measurements• Visibility of upcoming maintenance• Immediate awareness of instrument condition

Compatible Instruments
A-ISE sc
Amtax sc
AN-ISE sc
CL17scLDO scN-ISE scNitratax plus sc
Phosphax sc
Solitax
TU5300 sc
TU5400 sc

18

Protect your investment
and peace of mind
With Hach Service, you have a global partner who understands your needs and cares about delivering
timely, high-quality service you can trust. Our Service Team brings unique expertise to help you
maximize instrument uptime, ensure data integrity, maintain operational stability, and reducecompliance risk.
Ask your representative about 3-Point Protection for your investment.

ElevatePerformance• Advanced Maintenance• Remote Monitoring

Establish
Performance

ExtendPerformance• Commissioning• Calibration/Certification• Routine Maintenance• Repair19

Your Partner for
Water Analysis in the
Food Industry
We invite you to take a look at our comprehensive line of product solutions and services.
They’re the most accurate, dependable, and cost-effective products you can buy.
Hach offers:• On-line process instrumentation and reagents• Laboratory equipment, reagents, and supplies• More EPA-approved methods than any other company• Portable test kits and field instruments• Automatic samplers and flow meters• Local sales and service teams• Service partnership programs and customized training

For more information, visit hach.com/industries/foodor call toll-free 800-227-4224.

HACH World Headquarters
P.O. Box 389
Loveland, Colorado 80539-0389 U.S.A.
Telephone: 970-669-3050
Fax: 970-669-2932
E-mail: orders@hach.com

DOC030.53.10105.​Jul20©Hach Company, 2020. All rights reserved.