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Summary of Contents for MessKonzept FTC400
- Page 1 FTC400 Fast Thermal Conductivity Analyzer Operating Manual Messkonzept GmbH Analytical Technology...
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Page 2: About This Manual
All information of technical nature and particulars of the product and its use (including the information in this manual) are given by Messkonzept in good faith. However, it is acknowledged that there may be errors or omissions in this manual. For the latest revisions to this manual contact Messkonzept or visit www.Messkonzept.de... - Page 3 Quick Installation Guide For quick installation of the FTC400we recommend to read the following chapters of this manual: • Chapter 1 "Operator Safety" with warnings and saftey instuctions and intendes use. • Chapter 3 "Assembly of instument" describes the mounting, pneumatic and electric con- nection.
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Page 4: Table Of Contents
FTC400 Detector Unit ....... . 3.2 Installation of the FTC400 ....... - Page 5 Page 4 of 49 7 Diagnosis 7.1 Parameter Menu ........7.2 Errors .
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Page 6: Operator Safety
Chapter 1 Operator safety This section provides information and warnings which must be followed to ensure safe operation and retain the instrument in safe condition. Read this section carefully before beginning to install and use the instrument. 1.1 Notes on Safety Conventions and Icons This icon draws attention to application errors or actions that can lead to safety risks including the injury to persons or malfunctions, possibly even destruction of the device. -
Page 7: Warning Notices
• Never open the housing of the FTC400, especially because of the loose glass balls. When the device had been opened it may not work safely with flammable gases. -
Page 8: Safety Instructions
Any interruption in the protective earth can cause danger • Pay regard to the local regulations and circumstances regarding electric installations • Repairs may only be done by Messkonzept. 1.4 Intended Use Only non-corrosive and condensate-,dust-, aerosol-, oil dust-free gases may be lead in the FTC- series gas analyser. -
Page 9: Principle Of Measurement
Chapter 2 Principle of Measurement 2.1 Determining Concentrations via Thermal Conductivity Thermal Conductivity Detectors (TCD) were used in the chemical industry since the 1920s as the first process gas analyzer for the quantitative composition of gas mixtures. Each gas has a typical heat conductivity governed by its molar mass and viscosity. -
Page 10: Determining Concentrations Via Infrared Measurement
Figure 2.1: Scematic drawing of thermal conductivity measurement. The sensor is comprised in the thermally stabilized stainless steel block. The FTC400 sensor determines the quantitative composition of gas mixtures by measuring the thermal conductivity between a heat source and a heat sink through the gas mixture. The measuring gas is conducted to the sensor through a stainless steel block that is kept at a constant temperature of 63 C. - Page 11 Page 10 of 49 Measuring Carrier Basic Smallest Smallest suppressed Multi Gas range range zero range Mode or air 0% - 100% 0% - 0.5% 98% - 100% 0% - 100% 0% - 0.4% 99% - 100% 20% - 100% 20% - 40% 85% - 100% On request...
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Page 12: Analysis Of Complex Gas Mixtures
The combination of the IR measurement with the thermal conductivity measurement enables the complete determination of complex gas mixtures in many cases. The FTC400 comprises both technolgies, thermal conductivity measurement and infrared mea- surement in one housing. Thermal conductivity measurement is influenced by a disturbing quan- tity causing a cross sensitvity measurement. -
Page 13: Assembly Of The Instrument
Assembly of the Instrument FTC400 Detector Unit The FTC400 detector unit consists of a hermetically sealed pressure proofed stainless steel block with a gas duct, which is suited for pressures up to 20 bar. Sample gas entering through the gas inlet is guided to the micromechanical thermal conductivity sensor and further downstream to the outlet port. -
Page 14: Gas Ports
Page 13 of 49 3.3 Gas Ports On the bottom of the FTC400 housing two tubes with 6mm outer diameter for gas connection are located. They are labeled with “GAS INm “ and “GAS OUT“. For low requirements regarding gas tightness and resistance to pressure the tubes can be used as hose connector. - Page 15 Page 14 of 49 Pin No. Conductor colouring Function Description Connector A (7 pins) white Analog Input 1 0 to 10V, 24 bit resolution brown Analog Output 2 0 to 10V, 16 bit resolution green GND for pins 1, 2, 6, 7 yellow Digital Input (DIN) low:<4.6V;...
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Page 16: Requirements For Electrical Connectors
3.4.2 Ground Figure 3.1: Grounding the FTC400 To comply with EN 60204-1, the device has to be installed such that the power supply (PELV) is connected to ground with only its ground conductor, see Figure above. The shielding of cable A, B and C has to be connected to the functional ground. -
Page 17: Particular Features Of The Ftc400
Page 16 of 49 3.5 Particular Features of the FTC400 • Accurate and long term stable thermal conductivity measurement • High sensitivity (e.g. measuring range 0 Vol.% to 0.5Vol.% H in N • Fast response with a T90 time of less than 1 sec (dependent on flow rate) •... -
Page 18: The Front Panel
Chapter 4 The Front Panel 4.1 Display Content missing. Insert type dependent description here. Standar 4.1.1 Display Indication Infrared Signals The top line of the display shows the concentration of one selected IR signal. If an error is pending or an exceedance of limit value, the first line shows the error indication and the IR value in an alternation of 3 seconds. -
Page 19: Led Indicators
Page 18 of 49 4.2 LED Indicators System Alarm Indicator (red) The flashing red LED indicates a system. Dependent on the configuration of the “Alarm matrix“, see chapter 8.2.7 Common Relay, also other errors can be shown System Maintenance Indicator (yellow) The flashing yellow LED indicates that the instrument demands maintenance. -
Page 20: Switching On The Device
Chapter 5 Switching on the device This chapter describes switching on the device. The warm up screen, see Figure 5.0, shows the block temperature while the block warms up. After the warm up, the device switches to the operation screen, see Figure 5.1, from here the operation screen the main menu is opened. The device can be run in two different modes, the safety mode and the normal mode. -
Page 21: Top Level Main Menu
Page 20 of 49 ppm or Vol.% and the currently selected gas pair, in the example above hydrogen in nitrogen. The display resolution in ppm is 1ppm, the number of digits displayed in Vol.% indication is set according to the customers wish and can be changed in the Expert menu in the parameter menu. Press the <UP>... -
Page 22: Calibration
The gas purities are selected such that the devices comply with the specifications for the smallest measuring range. Messkonzept recommends gases of same purity for calibration on-site. For differing individual requirements, opt for an appropriate gas purity. Please contact us for advice. -
Page 23: Select Signal To Calibrate
Page 22 of 49 6.2 Select Signal to Calibrate The FTC400 combines an integrated infrared measurement with thermal conductivity measure- ment. The measured infrared signal is usedt for the cross-sensitivity compensation of the thermal conductivity signal. The compensation is active during calibration. For best results we recom- mend the following order when calibrating or checking the accuracy of the measurement: •... -
Page 24: Offset Calibration
Instead of using toxic or explosive gases for calibration substitute gases may be used. A sub- stitute gas has at a certain concentration the same thermal conductivity as the test gas it is substituting, such it can also be used for the calibration instead. Please contact Messkonzept for details. -
Page 25: Diagnosis
The parameter menu gives enables to scroll through the entire parameter list. Contact Messkonzept for detailed information on the parameter. The first line contains the name of the parameter, the last line its number. To move forward in the list, press <ENTER>, to move backwards, press <Up>. -
Page 26: Errors
Page 25 of 49 7.2 Errors When the device is in the measuring mode or calibrating several parameters are continuously checked for plausibility. The parameters checked, the list of possible errors and the ranges defin- ing a plausible value can be found in Appendix A. Errors are indicated by a flashing red line on the front panel and “Er“... -
Page 27: Setup
Chapter 8 Setup For devices operated in “safety mode“, the operator code is required to access the setup menu. By default the operator code is set to 111.000. 8.1 The Setup Menu The “Setup“ menu contains four submenus: • The “Instrument Setup“ selects the measured gas pair, the units and the T90 response time of the exponential filter. -
Page 28: Measuring Gas Setup
Page 27 of 49 The first point of the submenu allows to select the unit. Pressing <ENTER> the alternates the displayed unit between ppm and Vol.The value of P76 (see Chapter 8.4.1 Parameter) fixes the number of digits after the point between 1 and 4 when displaying Vol.All internal calculations are done in ppm. -
Page 29: Response Time Setup
Page 28 of 49 automatically used. The settings of relays, the scaling of the analog outputs and the measuring range do not change when using a different binary gas mixture. 8.1.2 Response Time Setup In the menu “T90 Response“ the response time of the exponential filter is adjusted. This filter reduces the influence of fast variations of the raw signal. -
Page 30: Relays
Page 29 of 49 list, “Not in List“ if this is not the case. The binary gas mixture to be added or removed to or from the list is selected with the <UP>. The <RIGHT>key changes to the third display line, where the <ENTER>... -
Page 31: Relay 1 Threshold
Page 30 of 49 minus the hysteresis given in “R1 Hysteresis“. The hysteresis is specified in percent of threshold. • “R 1Mode H/L“ signalling from high to low When the measured concentration decreases and reaches the threshold, the alarm is triggered. When the measured concentration in- creases again above the threshold, the alarm is only reset if the value increases above the threshold plus the hysteresis given in “R1 Hysteresis“. -
Page 32: Relay 1 Failsafe / Not Failsafe
Page 31 of 49 8.2.4 Relay 1 Failsafe / Not failsafe The threshold alarms can be configured as “Failsafe“ or “Not Failsafe“. “Failsafe“ means that the relay is live with no error pending. Hence, the alarm is indicated if the threshold is reached or if the closed-circuit contact is interrupted. -
Page 33: Relay 2 Mode
Page 32 of 49 8.2.6 Relay 2 Mode “Relay 2“ provides all functionalities of Relay 11, see description above. In addition Relay 2 permits the external signaling of the “Maintenance“ alarm or monitoring the external auxiliary signal with the menu “Aux.“. 8.2.7 Common Relay In the “Common Relay“... -
Page 34: Analog Output Setup
Page 33 of 49 whether this error is included in the common (“C. Alarm YES“) relay or not (“C. Alarm NO“). Press <RIGHT> to proceed to the third display line press <ENTER> to switch between “C. Alarm YES“ and “C. Alarm NO“. Confirm with “OK“. If one or more of errors included in the Alarm matrix by “C. -
Page 35: Current Loop
Page 34 of 49 8.3.1 Current Loop In the “Current Loop“ menu the range of the current output and the behavior of the current loop during calibration and in case of an error are defined. Press <RIGHT> to scroll through the list of the different modes. -
Page 36: Analog Output 1
Page 35 of 49 • “I/O Mode, 0-20mA (Err)“ This mode works in the analogous manner as the previously described mode. In case of an error the current output is set to the value specified in the submenu “I-Out Error“. •... - Page 37 Page 36 of 49 “Analog Out 1“ is a non DC-isolated 0 to 10V output. The maximum load is 1kOhm. The following parameters can be routed to “AOut-Parameter “: Value Param. No. Param. Name Descriptions No output Compound ppm Measuring signal in ppm Compound raw Linearized raw signal in ppm Norm.
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Page 38: Analog Output 2
Page 37 of 49 8.3.3 Analog Output 2 All “Analog Out 2“ settings are made as described for “Analog Out 1“. 8.3.4 Adjust Loop File name: Manual_FTC400_1.09KD181129CWI1V01.pdf... -
Page 39: Expert Setup
Page 38 of 49 In the menu “Adjust Loop“ the current loop can be calibrated. Opening the menu “Adjust Loop“ set the current loop output to 19.500mA. Measure the resulting current at the output (e.g. with a multimeter) and enter the measured value in the third display line, then confirm with “OK“ and <ENTER>. -
Page 40: Access Modes
Page 39 of 49 the list and backwards by pressing <UP>. Some parameters cannot be changed (e.g. “Com- pound ppm“, see Figure above) other can be changed (e.g. “LED Contrast“, see Figure above). All changeable parameters are indicated by “Change?“ in the third line. Enter the new number in the numerical submenu, mark “OK“... -
Page 41: Reset Functions
With these values the device will not work. The correct parameters (contact Messkonzept) have to be written to the device again, see chapter 8.4.1 or the manual of SetApp under www.messkonzept.de... -
Page 42: Test Of Relays, Analog Outputs And Connections
Page 41 of 49 8.4.4 Test of Relays, Analog Outputs and Connections The “I/O Test“ menu provides the opportunity to set the following properties to a defined status in order to test subsequent connected equipment: • Relay 1 (Rel 1) (open/closed) •... - Page 43 Page 42 of 49 The digital input “DIN“ is “low“ for voltages below 4.6V and “high“ above 11.4 V. The output “Current Loop“ can be set to currents between 0 and 22mA. The analog outputs 1 and 2 can be set to supply a voltage between 0V and 10V. Note! All test signals are permanently on until leaving the “I/O Test“...
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Page 44: Appendix: System Errors
Then will try to help by remote maintenance. If the error persists we will ask you to send the FTC400back to Messkonzept. Please pay attention to these points when sending the device: •... - Page 45 Repeat proce- dure. If the error persists, send the device to Messkonzept with description of error. CAL OFFS ER Calibration offset 100 mV Check if the used test gas con- exceeding max.
- Page 46 The device is used out- side the specified ambient tem- perature or gas temperature range. Consider the specifica- tions. If the error persists, send the device to Messkonzept with description of error. BT MAX ER Block temper- SetTemp+0.5 C The device still warms up or...
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Page 47: Appendix: Specifications
Chapter 10 Appendix: Specifications 10.1 Specification of Thermal Conductivitly Measurement Linearity < 1% of range Warm up time Approx. 20min; up to 1h for small ranges Flow rate 10l/h-150l/h, recommended 60l/h to 80l/h T90-time <1sec at flow rate higher 60l/h (or user selected) Noise <... -
Page 48: Specification Ir Measurement
Page 47 of 49 10.2 Specification IR Measurement Coming soon! Please contact us for details: info@messkonzept.de File name: Manual_FTC400_1.09KD181129CWI1V01.pdf... -
Page 49: Electrical
Page 48 of 49 10.3 Electrical Display 128 x 64 dot graphic LCD display Keypad 3x membrane covered push-buttons Analog Input Non isolated Voltage range 0 to 10V Input resistance Approx. 50 kOhm Resolution 24 bit Current Loop Linearized 0/4 to 20 mA User selectable Fully floating 500V to ground (max.) -
Page 50: Environmental Conditions
Page 49 of 49 10.4 Environmental conditions Operating temperature -20 C to 50 C (-4 F to 122 F) or -5 C to 50 C (23 F to 122 F) glass balls filled version Storage temperature -25 C to 70 C (-15 F to 160 F) (not- condensing) Vibration 10 to 150Hz (2g peak) -
Page 51: Appendix: Dimension Drawing
Chapter 11 Appendix: Dimension Drawing File name: Manual_FTC400_1.09KD181129CWI1V01.pdf...
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