This document is protected by copyright. Neither the whole nor any part of it or the information contained in it may be adapted or reproduced in any form except with the prior written approval of Messkonzept. All information of technical nature and particulars of the product and its use (including the information in this manual) are given by Messkonzept with careful studies.
This icon draws attention to application errors or actions that can lead to safety risks including the injury of persons or malfunctions or even possibly the destruction of the device. This icon indicates an additional function or hint. File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
Based on the information given in the questionnaire Messkonzept will examine the measuring task and possibly authorize it. • Combustible gases: The inner gas path of the detector is checked for leaks. The supply of flammable gases is permitted, but the tightness of the connections and the detector must be...
The device must not be disposed of as municipal waste (domestic waste). If the appliance is to be disposed of, please send it directly to us (with sufficient postage). We will dispose of the components properly and in an environmentally friendly manner. File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
Cross-sensitivity is the sensitivity of the measurement on other gases different than the measured component. File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
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The FTC320-OEM contains a TC sensor that analyzes the quantitative composition of gas mixtures. The measurement is based on the heat transfer between a heat source and a heat sink.
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0% - 100% 0% - 2% 96% - 100% Table 2.1: The measuring ranges of typical gas compositions for analysis with the FTC320-OEM given in Vol. %. The basic range is the largest possible measuring range and is set as standard. Lineariza- tion is carried out over the basic range.
"gain", which correspond to the ordinate intercept and the slope of a linear equation calculated in the device. Figures 3.1 and 3.2 explain how offset and gain correction works. before a�er offset calibra�on Real concentra�on [Vol.%] reference concentra�on (offset gas) Figure 3.1: Offset calibration. File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
This applies, for example, to a persistent signal drift or a periodicity in the signal curve due to unsteady flow, pressure, or dewpoint. The correct indication of the test gas is almost always sufficient to prove that the device is working properly. File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
The gas purities are selected so that the devices comply with the specifications for the smallest mea- suring range. Messkonzept recommends gases of the same purity for on-site calibration. If your own requirements differ, please choose the appropriate gas purity. Please contact Messkonzept if you would like advice.
flow, will cause a certain disturbance to the thermostated measurement in the FTC320-OEM. This is particularly the case if you accidentally had a very high gas flow, even for a very short time. It may take a while for the temperatures in the FTC320-OEM to reach equilibrium again and for the measurement indication to provide a stable and reproducible value in the ppm range.
Installation of the Instrument 4.1 Mounting The bottom view of the FTC320-OEM shows four M3 thread holes which can be used for the fixation of the detector (see Figure 4.1). Do not mount directly on heat conductive surface. Use insulating spacers (min.
4.2 Housing and insulation Thermal insulation and Electromagnetic protection The FTC320-OEM must not be exposed to any air flow, e.g. from fans. That’s why Messkonzept strongly recommends using housing for the FTC320-OEM. The ambient atmosphere should not be corrosive. The use of additional insulation is optional, but may become necessary for ambient temperatures below 0°C.
It can be found in Figure 4.3. The second green LED is blinking when RS232 data is sent by the FTC320-OEM (see bottom left on figure 4.3). The red LED next to it blinks when data is received.
Table 4.1: The available modes of the analogue outputs. The output mode pre-selected in your instrument can be found in the manufacturing Protocol shipped with the device. If you are unsure or you lost the device protocol, please contact Messkonzept. 4.6 Analogue Input The FTC320-OEM is equipped with two analogue inputs.
Chapter 5 Digital Communication In this chapter a short introduction into the digital communication with the FTC320-OEM is given. The goal is to provide a quick overview of the available features and to assist you in selecting which digital interface to use depending on your requirements. For more detailed information, please look into the separate documentation on SetApp3.0 or the manual on Serial Communication, respectively.
Page 19 of 37 5.1.1 Parameter List and Special Commands The FTC320-OEM has approximately 500 internal parameters. Some of these parameters are read- only, such as the measured gas concentration values or raw signals. Other parameters can be writ- ten to change the device configuration. One parameter takes a special role: P12 is used to trigger tasks/actions, such as a calibration routine.
TTL output Analog Output 1 Analog Ground Analog Output 2 Figure 5.2: The electrical connections to and from the FTC320-OEM . The following table explains possible switch combinations, the orientation reference used (Up/Down) is the same as in Figure 5.2: Mode...
Page 21 of 37 5.2.2 SetApp 3.0 SetApp 3.0 is a free software for communication with the FTC320-OEM. It can be downloaded from the Messkonzept website. RS232 (can also be on TTL level) must be connected to a Windows PC in order to use SetApp3.0.
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Always do an offset calibration first before doing a gain calibration! In most cases an offset calibration alone is sufficient for the proper performance of the device! First check if there is a deviation before possibly calibrating! File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
5.2.3 RS232 communication in a terminal emulator (e.g. Tera Term) When connected via the RS232 or TTL level interface, a terminal emulator such as Tera Term, may be used to interact with the FTC320-OEM. All device parameters and device functions can be reached through this interface.
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Parameter P1 using the command P1? followed by [CR] (carriage return), see Figure 5.6. Here the connected device is showing a gas concentration of 585646.9 ppm. The FTC320-OEM handles all gas concentration values in the physical unit ppm (parts per million) internally. Divide by 10000 ppm/Vol.% to get the concentration as 58.56 Vol.%.
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399300 ppm “Gain test gas (channel 5)” 2. Apply offset test gas to the FTC320-OEM and wait for the signal to stabilize, you may read out the currently measured concentration signal by sending P1? to the device repeatedly. 3. Calibrate Offset.
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You may need to create own software to interface with the device, e.g. to perform automatic calibrations or other interactions via RS232. If you want to design such software, please read the Serial Communi- cation manual for more detailed information about all device parameters. File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
Page 27 of 37 5.3 RS485 interface This chapter only gives a small introduction into the use of the Modbus with the FTC320-OEM. More de- tailed information on the Modbus communication, including bus configuration parameters and a complete list of all registers, can be found in the Manual on Serial Communication.
Proceed with caution when writing to the Holding Registers! You may misconfigure your device to give a wrong measurement indication or even damage the hardware of your device! Messkonzept will accept no liability for damage caused by improper configuration. 5.3.3 Reading measurement values The current gas concentration measured by thermal conductivity (channel 5) can be read by: •...
Page 29 of 37 5.3.4 Calibration via RS485 The RS485 interface can also be used to calibrate the FTC320-OEM. The procedure is the same as for the RS232 communication, as explained in section 5.2.3, only the parameter values are instead written into holding registers.
< 1% of within recommended range given in Table 6.2 Error due to change of pressure (800 kPa < P < 1200 kPa) < 1% of smallest range per 10 hPa Table 6.1: Specification of TC measurement File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
Low sample gas flow A070B908 Calibrated at 10 l/h Recommended range 3 l/h- 20 l/h Protection against corrosion, condensate and dust Permissible range 1 l/h- 60 l/h Table 6.2: Specifications of the variants of the product File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
50 kOhm Resolution 16 bit Accuracy 0.1 V Voltage range 24 V DC, Permissible range 21V to Power Supply Max. current Typical current draw 500mA Protective measure PELV (Protective Extra Low Voltage) Table 6.5: Electric Specifications File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
Condensation must be prevented in the entire gas sample path. Humidity and Water (condensate/ The "Protection against condensate and dust" option can drops) prevent the sensor element from being destroyed by water Table 6.6: Properties of the sample gas File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
Up to 50°C (-4°F to 122°F) Storage temperature -25°C to 70°C (-15°F to 160°F) (not-condensing) Protection class IP 00 Table 6.7: Environmental conditions 6.7 Dimensions Dimensions 75mm*64mm*45mm Weight max. 330 g Mounting Check chapter 4.1 Table 6.8: Dimensions File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
Page 36 of 37 Chapter 7 Views of the device The 3D STEP model is available on the website on request Figure 7.1: View of the FTC320-OEM from the front side. File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
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Page 37 of 37 Figure 7.2: View of the FTC320-OEM from the left side. File name: FTC320-OEM Manual 1.09KD221202EMAV04.pdf...
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Messkonzept GmbH Analytical Technology Niedwiesenstr. 33 60431 Frankfurt Germany Telefon +49 69 53056444 +49 69 53056445 info@messkonzept.de www.messkonzept.de Managing Director Dr. Axel-Ulrich Grunewald Place of jurisdiction Frankfurt HRB 49940 VAT ID: DE211207233...
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