NEXTChem Process Analyzers, Inc.

NEXTChem Process Analyzers, Inc.

NEXTChem is located in Chicago, IL U.S.A.

Our Mission is to build, support and continuously improve the Best Process Analyzers in the World!

NEXTChem Process Analyzers, Inc.

Sampling never requires a filter, decreasing maintenance and increasing reliability

Modern electronics makes programming through the User-Interface very simple

Using the latest innovations in stepper motor control for precise chemical analyses

Combining Multiple Chemical Analyses with Multiple Sample Streams within a single unit

Chemical Measurements with Process Control in a single unit

What makes NEXTChem Analyzers different?

Types of Measurement Techniques

Titration Endpoint Determination(sulfite in sea water)

Standard Addition Ion Selective Electrodes(ammonia in wastewater)

NEXTChem Process Analyzers, Inc.

Titration Curve – Response vs. Concentration

At the point of maximum change in sensor response (endpoint) the sample concentration is zero!

Typical Titration Curve

Sample 1 N sulfuric acid

2

4

6

8

10

12

0 2 4 6 8 10 12

Volume 0.1N NaOH titrated (mL)

pH

Large AdditionSmall Addition

Smallest Addition

The reagent additions are controlled by distance from endpoint for maximum accuracy.

Types of Titrations

Acid / Base -Acetic Acid

Redox -Sulfide

Complexation -Cyanide

Precipitation -Chloride

Color -Hardness

NEXTChem Process Analyzers, Inc.

Three Types of Ion Selective Electrodes

Solid State Membrane:

The membrane is an insoluble crystal of the ion to be determined.

Example: Fluoride, Silver/Sulfide, Chlorine

Gas Permeable Membrane:

A gas permeable membrane separates the sample from the sensor, commonly pH electrode.

Example: Ammonia, Carbon Dioxide

Neutral Carrier Membrane:

The membrane contains an ion specific complexing agent.

Example: Nitrate, Potassium

The characteristics of the ISE aredescribed by the Nernst equation

The Nernst equation :E = E0 + RT ln(10) log (c)

nF

E = Offset + Slope . log (c)

Example of Standard Addition Curve

CalibrationResponse dueTo Spike

Response due to Sample

Color Measurements

Color Dip Probe is used for the measurement:

630 nm Red, 590 nm Yellow, 520 nm Green, and 470 nm Blue

The following analyses can be done with the color measurements:

Total Hardness, Calcium Hardness, Phosphate, Manganese (II) and Zinc

NEXTChem Process Analyzers, Inc.

OMNIChem Advanced

12 Chemical Analyses / 8 Sample Points (industrial)

OMNIChem Basic

8 Chemical Analyses / 4 Sample Points (industrial)

MINIChem Plus4 Chemical Analyses / 4 Sample Points (industrial/municipal)

MINIChem2 Chemical Analyses / 2 Sample Points (municipal)

NEXTChem Process Analyzers, Inc.

HANDYChem

4 Chemical Analyses / 4 Sample Points (industrial/municipal)

ECOChem

2 Chemical Analyses / 2 Sample Points (municipal)

Many Analyses Available

Ammonia (NH3), Nitrate (NO3-), Sulfide (H2S) (Wastewater)

Sulfite (SO3-2), Chlorine (Cl2) (Petroleum)

Acetic Acid (CH3COOH), Nitric Acid (HNO3) (Chemical)

Hardness (Mg+2 & Ca+2), Fluoride (F-) (Drinking Water)

Hydroxide Peroxide (H2O2), Caustic (NaOH) (Textile)

F/T Acid (H3PO4), F/T Alkalinity (H2CO3) (Metal Finishing)

Copper (Cu+2), Silver (Ag+), Cyanide (CN-) (Mining)

Ozone (O3), ABC Analysis (S-2/NaOH/CO3-2) (Pulp/Paper)

NEXTChem specializes in automating Wet Chemical Analyses!

Examples of some Industrial Experiences

City of Fort Wayne alkalinity / pH

Clean Water Services ammonia / alkalinity

China Petroleum cyanide

Eastman Chemical acetic acid & hardness

Procter & Gamble alkalinity / hardness

Bosch high level chlorine

Medtronic low level cyanide

Duke Energy high level hardness

Saudi Aramco sulfite/pH in sea water

Industrial Experiences

Robert Bosch Wiper Systems: Tienen, Belgium

Customer’s Sample: 2.40 g/L chlorine (Cl2) in water (very corrosive)

Measurement: every 10 minutes

Accuracy: + 0.2% relative standard deviation

Industrial Experiences

Saudi Aramco: Dammam, Saudi Arabia

Customer’s Sample: 50 ppm Sulfite (SO3-) in sea water

Measurement: every 10 minutes

Accuracy: + 0.2% relative standard deviation

Measurement Cell

Non Dilution Measurement CellDilution Measurement Cell

Sample Systems

Sample Systems

Micro Dilution: 0.25 mL - 2.00 mL (<0.1mm particles)

Standard Dilution: 5.0 mL - 30.0 mL (<2mm particles)

Standard Non-Dilution: 90 / 140 mL (<3mm particles)

Self-Cleaning Non-Dilution: 90 / 140 mL (<6mm particles)

All Sample Systems are available for all OMNIChem/MINIChem and HANDYChem/ECOChem series analyzers.

Self-Cleaning Sample Valve

This valve makes sampling < 6mm particles possible.

Most common use is in sewage plants.

Used with Clean and Low Concentration Samples

Commonly used in Drinking Water/Final Effluent Applications

Standard Non-Dilution Sample System

Sample Panel Materials

Teflon FEP tubing used in sample panel construction

PVDF is be used for the valve bodies and fittings

Commonly used in Metal Finishing Plants

Standard Dilution Sample System

Sample Panel MaterialsMicro-Dilution Sample System

Used with very clean and very high concentration samples.

All “wetted surfaces” PEEK or Teflon

Commonly used in the Semiconductor Industry and Chemical Plants

Modern Electronics

Why use 1980’s electronics found in most on-line analyzers, when you can have modern electronics?

Modern Electronics

100 MHz CPU - Hitachi SH3 Series 7708

PC / 32 bit processor

4 MB ROM

2 MB RAM

Modbus RTU

Touchscreen Interface

Unicode/ASCII

Up to 57K baud serial communication

Modern Electronics

Modbus is standard on all NEXTChem Analyzers.

Additional Industrial Networks Available

Profibus – DP

DeviceNet

CANopen

ControlNet

LonWorks

CC – Link

FIPIO

Phone Modems and Radio Modems can also be added

What does E-Automation Really Mean?

The analyzer is assigned an IP address and connected to the plant network.

All the screens on the touch screen are available and interactive, making remote changes possible.

Installed at Eastman Chemical in Kingsport, TN USA.

International Considerations

Multi-Language HMI

Universal Power Supply 110/220VAC 50/60Hz

Touchscreen Languages Available

• English is the Primary Language

• The customer selects the second language

Spanish español

Portuguese portuguese

French français

Dutch nederlands

Arabic �ة العربّي

Russian русско

Italian italiano

Chinese 电

• Only MINIChem/OMNIChem Interfaces are Bi-Lingual

• Spanish is the default second language

Easy to use touchscreen !

NO MORE PUSH BUTTONS!

Bright Backlight makes the User Interface easy to read

Precision Reagent Pump

7.500 mL stroke volume

Accuracy + 0.001 mL

Kalrez Seal for long life (1 year)

Communications confirmed with each movement

Pump failures detected within one refill cycle

Stepper Motor with 8335 steps/mL or

0.00012 mL/step

Corrosive Environments

NEMA 4X (IP66) Fiberglass Enclosure

Either a Z-Purge, X-Purge, or ATEX-Purge can be supplied

Z-Purge (Class 1 Div 2) X-Purge (Class 1 Div 1) ATEX-Purge (Zone 2)

Rugged Electronics

Circuit Breaker for the Power Inlet Power Filter for the main power in 110 VAC or 220 VAC Fuses 5mm x 20mm for all internal/external devices All analog inputs have 1.5 kV isolation All analog outputs can have 1.5 kV isolation Industrial Relays with diode protection and easy to replace

Dynamic Electrode Output Display

Electrode measurements are displayed during each analysis

This information is invaluable in determining if the analyzer is operating correctly at a glance