An inexpensive process analyzer. Its sample system can be designed for either automated dilution or a very dirty sample stream. The ECOChem can perform either a titration or ion selective measurement. ECOChem is suitable for analyses in the following industries:

Measurement Methods
Two types of measurement methods are used for almost all NEXTChem analyzers: titration and (ion selective) standard addition. Both types of measurements methods can be used on all NEXTChem analyzers at the same time; making each type of analyzer extremely flexible.

Titration
Titration methods involve the addition of a reagent to the sample until an endpoint is detected with an electrode or color probe. Most of the titrations utilized by the NEXTChem Process Analyzers fall with one of five different categories: acid/base, oxidation/reduction, complexation, precipitation, or color.

Standard Addition
Measurements with the Ion Selective Electrodes (ISE) utilize the standard addition method. The standard addition method involves measuring the sample with the ISE before and after a know standard has been added and using the difference in the readings to determine the concentration of a specific ion.

Precision Reagent Pump / Ring Pump
The heart of a process analyzer is the way reagents are delivered to the measurement cell. The ECOChem uses two types of devices to add the required chemicals. The precision reagent pump is used to deliver the reagent which requires high accuracy (+ 0.001 mL), for example an ammonia standard. Up to two rings pumps can be added to deliver reagents which do not require high accuracy, for example a cleaning acid.

Ease of Programming
The ECOChem utilizes a push button menu driven user interface. This type of interface gives the analyzer a great degree of flexibility while maintaining an attractive price. The analyzer is programmed in a similar manner to the interaction with a bank ATM. A series of menus are selected by the end-user to program the analyzer. Each number value is programmed through a number key pad. To make the analyzer as cost effective as possible the user interface is displayed only in English.

Filter-Free Operations
The ECOChem Analyzer like all NEXTChem analyzers are designed to operate FILTER-FREE; this type of sampling INCREASES RELIABILITY and DECEASES MAINTENANCE. To make FILTER-FREE operation possible NEXTChem has created the “self-cleaning valve”. Utilizing the “self-cleaning valve” particles up to <6 mm can be easily handled. Large bore tubing [1/4” (6 mm) or 3/8” (9mm)] is used to transfer the sample from the sample panel to the measurement cell. Combining the self-cleaning valve with large bore tubing virtual eliminates the possibility of plugging; usually the most important issue in the operation of a process analyzer.

Automated Sample Dilution
The ECOChem series of analyzers can be configured to measure very high concentrations. This is accomplished by utilizing a dilution measurement cell. The dilution measurement cell is used with an external sample capture loop (5-30 mL). This allows a sample with up to <2 mm particles to be captured FILTER-FREE and sample burettes are never used.

GSM/SMS Modem
The ECOChem Analyzer can be equipped with a GSM/SMS Modem. With this modem the analyzer can send alarm messages and data to a specified number of mobile phones automatically. The analyzer will also respond to text messages from a specified number of mobile phones. These users can query the analyzer for data or other types of information. This capability gives the analyzer real-time remote control and access.

For further information on this product please contact the product manager, Ivan Saunders on 01342 820820 or email enquiries@qclscientific.com.