Exclusive drying and ashing technology€¦ · Precisa Gravimetrics AG - Company Profile Analysis operating at temperature of up to 1000 C Powerful heating element, protected with

Precisa Gravimetrics AG - Company Profile

Exclusive drying and ashing technology


Precisa Gravimetrics AG is the leading world producer of thermo gravimetrical analytical equipment.

prepASH ® Series 340 represents the highest level of thermo-gravimetric analysis and offers revolutionary improvement of sample preparation, analysis and documentation:

fully automatic determination of Moisture, Ash and Volatiles, exchanging drying oven, muffle furnace and analytical balance!


Principle of Analysis:

The prepASH ® Series 340consists of a muffle furnace combined with an analytical balance and advanced software using a touch screen user display.

Weighing curves are recorded over time for each individual test sample.

This permits automatic end-point determination and control during the entire drying and ashing process.



Analysis operating at temperature of up to 1000 CPowerful heating element, protected with a quartz glass, insures fast and homogenous temperature distribution.

from 12 to 29 samples in one runHigh efficiency through the simultaneous analysis of Moisture, Ash and Volatiles of up to 29 samples in one run.

Analytical balance 0.0001 g from PrecisaBuilt-in high performance analytical balance enables direct weighing-in, continuous control of the analytical cycle and end-point recognition.



Easy and safe in operationPossibility to open cover automatically at a certain temperature.Less manual handling of the sample, which may cause errors and inacuracy.

Colorful touch screen displayIcon driven language independent operation offers easy programming of methods.

Versatile connectivityVarious communication ports: Ethernet, 2USBports and RS232 (PC, Printer).



Software for the data evaluationUser friendly, colorful software for the preparation of automatic measurement reports and group statistic.

Error-free protocolsGraphical report of measuring values, either single or in groups, with sample recognition in color.

No manual calculation!

Continuous monitoring of analysisReal-time evaluation of weight loss during the drying and ashing process is shown directly on the prepASH display and via network on external computer.


Optimization of technological process through the workflow improvement and reduction of working steps.

Standard method: drying offen, muffle furnace and analytical balance

prepASH Serie 340

1 Heating out crucibles for constant weight before the analysis

1 Possible to predefine a "heating out program"

2 Measuring tare of crucibles one by one 2 AUTOMATIC PROCEDURE3 Sampling 3 Sampling4 Weighing + documentation of each crucible weight 4 AUTOMATIC PROCEDURE + entering the

sample name or/and ID5 Samples in drying oven + START 5 START6 Removing samples from the oven + cooling down 6 Result (Moisture) - Automatic calculation

7 Back weighing samples, calculation + documentation

7 Result (Ash) - Automatic calculation

8 Pre-ashing with rapid incinerator or hot plate

9 Samples in muffle furnace10 Removing samples + cooling down in exsiccator11 Back weighing for the stable results (repeat?)

12 Calculation and documentation

Comparison of working steps of Moisture and Ash analysis

Ash analysis

Moisture analysis


• Automatic analysis of Moisture, Ash, Volatiles and Fixed Carbon

• Standard Analysis could be easily transferred to prepASH ® Serie 340 and validated

• Time of analysis could be optimized up to 70%

• Analysis of field sample instead of analytical sample with prepASH212

• Automatic calculation and documentation of Moisture, Volatiles, Ash and Fixed Carbon results

• Improvement of the reproducibility of results

Special application for Coal & Coke as per ASTM # D 5142-09


• Automation of analysis

• Increased quantity of analysis

• Saving of workload up to 80%

• Optimization of analysis time up to 70%

• Improved accuracy and reproducibility

• Monitoring and documentation of the process

represents the highest level of thermo-gravimetric analysis and offer a unique combination of important advantages:

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Exclusive drying and ashing technology€¦ · Precisa Gravimetrics AG - Company Profile Analysis operating at temperature of up to 1000 C Powerful heating element, protected with