LDetek makes the assumption that all operators have taken the time to read this information prior to installation, operating and troubleshooting this analyzer. If any error is suspected by the reader, please contact LDetek. LDetek reserves the right to make any changes to subsequent editions of this document without prior notice to holders of this edition.
EXPRESS AND IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THIS WARRANTY IS THE ONLY WARRANTY MADE BY LDETEK INC. WITH RESPECT TO THE GOODS DELIVERED HEREUNDER, AND NO EMPLOYEE, REPRESENTATIVE OR OTHER PERSON OR ENTITY IS AUTHORIZED TO...
Page 10
MULTIDETEK 2 User’s manual MANUFACTURED BY SELLER GIVING RISE TO THE CAUSE OF ACTION. BUYER AGREES THAT IN NO EVENT SHALL SELLER'S LIABILITY EXTEND TO INCLUDE INCIDENTAL OR CONSEQUENTIAL DAMAGES. CONSEQUENTIAL DAMAGES SHALL INCLUDE BUT ARE NOT LIMITED TO, LOSS OF ANTICIPATED PROFITS, LOSS OF USE, LOSS OF REVENUE, COST OF CAPITAL AND DAMAGE OR LOSS OF OTHER PROPERTY OR EQUIPMENT.
Page 11
Write RMA number on the outside of the box; Use an LDetek approved carrier. Also, the delivery must be sent to LDetek facilities. LDetek will not accept airport to airport delivery; LDetek will not cover the transportation fees.
MULTIDETEK 2 User’s manual LDetek Inc. and shall be used only in connection with LDetek's products. No third party could remove or deface any model number or marks. 3. Declarations of conformity...
MULTIDETEK 2 User’s manual 4. Specifications Detector type: PED (PlasmaDetek), FID, TCD or third party detector can be mounted on request Carrier: Argon, Helium, Nitrogen, Hydrogen, Neon or others Application dependant Range: Repeatability: < 5% of (3*CV%) Accuracy: Better than ± 1% error or LDL whichever is higher Standard features: Range (manual) Microprocessor controlled (DSP)
5. Cautions and installation information 5.1 Detector cautions The MultiDetek2 uses multiple detection techniques known from the industry for many years. It can be PED, FID, TCD, DID and other types on request. The principle of the PED is based on spectroscopic emission. The detector is a pure quartz cell put in an electromagnetic field created by a specific high-intensity generator.
5.2 Analyzer application The MultiDetek2 is designed to be used for the impurity and sampling details on the specification sheet of the instrument only. Using this instrument with any other type of gases can cause damage to the analyzer. Please refer to the document “Operating Parameters”...
7. Once the gas lines are purged and gas is connected to the MultiDetek2 unit, the power source can be connected. Please refer to the model number of the instrument that shows the voltage of it (120VAC or 240VAC).
Settings>>Oven select the right oven and look at the first value of the time table (beside “at start”). If after few minutes, the oven temperature deviation is still active and no temperature change occurred, then it is required to contact LDetek support for further instructions.
The detector will turns on automatically once the carrier gas set points and a basic purge of the system are achieved. If after confirming the above you still have an active ‘Detector # OFF’’ alerts displayed, then it is required to contact LDetek support for further instructions.
If the problem still occurred, then it is required to send the exported machine file (.md2m) to LDetek support for further instructions. Refer to chapter 6.1.1 of this manual for further details on Machine file exporting.
Due to the vibrations during shipping, sometimes the system properties are modified and could result changing in the elution time of peaks. In this case, LDetek experts will be able to guide you in the modification of the system parameters with the file provided.
MULTIDETEK 2 User’s manual 9. All the caps can be installed on the MultiDetek2 back panel. 10. Remove the power from the LDP1000 by switching its power switch to OFF and disconnect the power cable on the LDP1000. 11. Wait until the LDP1000 become at ambient temperature. It takes around 2 hours.
Page 25
MULTIDETEK 2 User’s manual there is no carrier flow interruption in the system which is the most critical point. Once the system has switched on the backup bottle, it is the responsibility of the user to replace the empty bottle. The lifetime of a carrier bottle is application dependent but as an indication, a small to mid-size GC system requires a 50Liters (9cubic meters) bottle once a month.
Separating the actuation from the reference carrier gas allows our gas chromatograph MultiDetek2 to achieve better results and more stability. The reason for it is mainly caused by the pressure changes when valves actuate during a cycle that will impact the equilibrium of the carrier gas reference.
MULTIDETEK 2 User’s manual 5.5.3 O2 doping Figure 6 shows a typical installation that requires O2 doping. This feature is used to keep our system saturated with Oxygen. In chromatography, it is well known that oxygen is adsorbed by the Molecular Sieve and also by the porous polymer type columns used for separating and measuring trace oxygen.
MULTIDETEK 2 User’s manual 6. Hardware description The MultiDetek 2 has major components included in it chassis. This section will describe each component that can be replaced for maintenance or upgrade. 6.1 Detectors The PED detector module is a 155 mm (6.1”) x 82 mm (3.22”) x 63 mm (2.48”) box that contains all components needed to proceed to accurate measurement.
MULTIDETEK 2 User’s manual 6.2 Motherboard This I/O board controls all components inside the analyzer (flow, detectors acquisition, temperatures, etc.). When replacing this motherboard be sure to avoid any electrostatic contact. The Board conception is modular, so it facilitate the replacement of parts on site. The flow sensor for carrier and sample can easily be replaced on site.
An intelligent system can also be integrated to suck a precise gas volume to fill the loop with the exact volume. Please contact LDetek for more information. A split/splitless septum injector can also be mounted for syringe injection. It can also be heated.
A programmable oven version is also available in the MultiDetek2. It is the same internal dimension of the isothermal version and can then offer the same columns configuration in it.
MULTIDETEK 2 User’s manual 6.7 Large 8.4’’ touch screen LCD & LDChroma The MultiDetek 2 offers an easy and complete interface working on Windows 7 embedded. With its clear 8.4’’touch screen LCD, it allows the operator to easily navigates through the different menus. Moreover, the system includes an Ethernet port for remote control.
Page 37
Handling highly flammable gas like silane or any other hazardous or explosive gases requires a high level of safety and it is what LDetek offers with its built-in sample purging and monitoring system inside the MultiDetek 2 compact GC. This system consists of 4...
6.10 Advanced Quartz Crystal Microbalance sensor The Advanced Quartz Crystal Microbalance sensor from Michell Instruments is now integrated inside the MultiDetek2 GC to provide reliable, fast and accurate measurement of trace moisture content in a variety of applications where keeping moisture to a minimum is of critical importance.
MULTIDETEK 2 User’s manual 7. LDChroma The MultiDetek 2 has a dual-core microcontroller (one core is a DSP for digital signal processing) that communicate with an 8-inch panel PC (touch screen). It offers an easy and complete interface named LDChroma working on Windows 7 embedded. You can use the USB connector on the front panel to connect a keyboard.
MULTIDETEK 2 User’s manual 7.1.2 Method The Method menu allow you to manage all the methods you have on you GC. Figure 20: Method Manager Open: Allows you to open the selected method. Delete: Allows you to delete the selected method. Copy: Allows you to copy the selected method.
MULTIDETEK 2 User’s manual Figure 21: Network 7.1.5 User and Admin Mode User Mode: While in this mode, the user has limited access to settings Admin Mode: While in this mode, the user has access to all the settings. The factory password to access this mode “12345”.
MULTIDETEK 2 User’s manual 7.2 Chromatogram tab 7.2.1 Chromatogram The Chromatogram menu is where you run the analysis. It is where you can see the chromatogram, the current results, the alerts, the oven temperature, the sample flow and the carrier flow. Figure 22: Chromatogram menu 1- On the chromatogram, the X-axis shows the time in second and Y-axis shows the voltage in mV.
MULTIDETEK 2 User’s manual 2- To see the voltage of each sensor you must click on “Legend” in the top left corner of the chart. By moving the mouse arrow in the chart, you will see the mV in the legend for each sensor.
The third icon is an “F”. If this icon is coloured, it tells you that one or more output(s) are forced in the GC. For instance, the outputs of the MultiDetek2 may have been forced for diagnostic purpose. This icon is there to remind the user that one or many I/O are forced.
The bar can also become yellow. In that case, it means that there is a warning. Otherwise, if gray, there is no alert and the MultiDetek2 is ready to perform an analysis. By double-clicking on the bar, the following window will appear.
MULTIDETEK 2 User’s manual 7.2.3 Historic This menu is used to consult the previous analysis results. Figure 28 : Historic menu Export: allows you to export the current chart under the Excel format. Print: The “Print” button allows you to print the current chart.
MULTIDETEK 2 User’s manual If you click the “Historic...” button, you will see the list of the last analysis results: If you select a result in the list, the chart will change to this analysis. The export button saves the selected historic on any drive you want.
7.3 Settings Menu 7.3.1 Setting In this menu, there are all the parameters of the MultiDetek2. These parameters should not be changed without contacting LDetek support. The available settings may vary depending on the software version. To update the software, please contact LDetek support to ensure the versions are compatible with your system.
MULTIDETEK 2 User’s manual 7.3.1.1 Misc Figure 32 : Settings menu Analysis Time: The cycle time of the current method Stream Change It is the time where it is possible to change the current stream Time: without affecting this analysis. This parameter is used only when running a sequence and if the next analysis in the sequence has a different stream.
MULTIDETEK 2 User’s manual 7.3.1.2 Peak Figure 33: Peak setting menu Setup: The peak detection algorithm can be changed by double-clicking on setup Start: The start time of the current peak End: The stop time of the current peak Gain: The gain of the current peak LDL: The lowest detectable limit (LDL).
Page 51
MULTIDETEK 2 User’s manual The parameters bellow “LDL”, may vary depending on the peak detection algorithm used. The detections algorithms are described below. There is 7 types of detection for a peak. Biggest Peak: In the peak window, the algorithm will detect every rise and every drop.
MULTIDETEK 2 User’s manual 7.3.1.3 Flow Figure 34: Flow setting menu Setup: By double-clicking on it you can change: • The name of the flow • The type of flow o Sample o Carrier • The flow control type o Automatic (closed-loop control) o Manual (just for reading, no output) o LDepc (extern control) •...
Page 53
MULTIDETEK 2 User’s manual Pct Alert: The percentage of deviation allowed before the flow deviation alert Low Limit: The lowest value to be considered as a normal condition. If we have reading lower than that, the system will stop trying to control it. Because there is probably something wrong, a broken sensor for instance.
MULTIDETEK 2 User’s manual 7.3.1.4 Oven Figure 35: Oven setting menu Setup: By double-clicking on it you can change: • The name of the oven • T° sensor you want to use for this oven • The type of oven o On/Off (isothermal oven) o On/Off+fan (programmed ramping oven) o Proportional (HCD)
Page 55
MULTIDETEK 2 User’s manual Dev Alert: The percentage of deviation allowed before the oven temperature deviation alert Low Limit: The lowest value to be considered as a normal condition. If we have reading lower than that, the system will stop trying to control it. Because there is probably something wrong, a broken sensor for instance.
MULTIDETEK 2 User’s manual 7.3.1.5 Detector Figure 36: Detector setting menu Setup: By double-clicking on it you can change: • The name of the detector • The type o Plasma o TCD • Input / Output needed for the control and monitoring Power: The value in % for the power delivered to the detector Power Relay:...
MULTIDETEK 2 User’s manual 7.3.1.6 Sensor Figure 37: Sensor setting menu Setup: By double-clicking on it you can change: • The name of the sensor • The color on the chart • The type of filter o Average o Median o FIR o Curve Fitting Base Offset:...
MULTIDETEK 2 User’s manual 7.3.1.7 Valve Figure 38: Valve setting menu Setup: By double-clicking on it you can change: • The name of the valve • The digital output associated with it Type: Configuration of the valve (Injection, Heartcut, Backflush, etc.) Sampling Loop: It shows the sampling loop volume if it is a valve that contains sample loop.
Recording: To manage the folder or drive where the analysis results are recorded About info: To manage useful information about the MultiDetek2 Serial port: To manage the setting related to the serial communication Custom Field: To setup custom field associated with results...
MULTIDETEK 2 User’s manual 7.3.1.9 4-20mA Figure 40: 4-20mA settings menu Setup: By double-clicking on it you can change: • The name of the 4-20mA • The analog output associated with it Measured 4mA: The current measured during the calibration should be put there. By double clicking on the field, the output will be set to 4mA.
MULTIDETEK 2 User’s manual 7.3.1.10 Stream Figure 41: Stream settings menu Setup: By double-clicking on it you can change: • The name of the stream • The digital output associated with it Use for Calib.: This is used to determine the stream used for calibration of the analyser Display order: This determine the order this stream will have in the menu.
MULTIDETEK 2 User’s manual 7.3.1.11 Sequence Figure 42: Sequence setting menu Setup: By double-clicking on it you can change the name of the Sequence Disable Stream at If it is enabled, at the end of the sequence, no stream will be selected Add: To add an analysis to the current sequence...
MULTIDETEK 2 User’s manual 7.3.1.12 Column Figure 43: Column setting menu Setup: By double-clicking on it you can change • the name of the column • the oven that contains this particular column • the valve(s) and state of it(them) when column regeneration is in process Description: Additional description on the column...
MULTIDETEK 2 User’s manual 7.3.1.13 Modbus Figure 44: Modbus setting menu Slave ID: The SlaveID is a unique number for each Slave in your Modbus network. The SlaveID can be any number between 1 and 254. If a Slave receives a communication with a wrong SlaveID, it will be ignored High byte Options to adapt the communication to different DCS default language...
MULTIDETEK 2 User’s manual 7.3.1.14 QMA Figure 45: QMA setting menu Enable: Enable or disable the QMA Peak: Assign the QMA to peak. Valve: Assign a valve to the QMA. The selected valve will control the sensor. Oven: Assign an oven to the QMA. The selected oven will control the sensor temperature.
MULTIDETEK 2 User’s manual 7.4 Calibration Menu Figure 46: Calibration menu Peak: The name of the impurities Cur. Area: The area of the current calibration Cur.: The concentration of the current calibration New Area: The area of the new calibration New.: The concentration of the new calibration All Last...
Page 67
MULTIDETEK 2 User’s manual It is also possible to see the chromatogram with values of a previous calibration by right-clicking on a date and selecting “Attached analysis” A chromatogram will show in a pop up window as shown below.
MULTIDETEK 2 User’s manual 7.5 Diagnostics Menu 7.5.1 Analog input This menu displays all analog inputs in the MultiDetek2 with their actual value in counts and converted into units. The progress bar in the corner shows the refreshing rate Figure 47: Analog input window 7.5.2 Analog output...
MULTIDETEK 2 User’s manual 7.5.3 Digital output This menu displays all digital output in the MultiDetek2 with their actual value. If the square is grey, the state of the output is unknown (probably a communication problem), if the square is dark green, the output is OFF, if the square is light green, the output is ON.
MULTIDETEK 2 User’s manual 7.5.5 Modbus/Register This menu displays the actual values of every Modbus registers Figure 51: Modbus register window 7.5.6 Modbus/Connection This menu displays which IP is connected the MD2 and if there is some activity (send and receive data) Figure 52: Modbus information window 7.5.7 Idle Sensor This menu is used to save all sensors voltages when the system is at factory.
MULTIDETEK 2 User’s manual 7.6 Regeneration This menu is used to start a regeneration. The settings are pre-configured in the setting menu. Figure 53: Regeneration window...
Figure 54 : About menu 7.8 Firmware Update This menu is used to update the firmware of the MultiDetek2. A firmware update should not be done without contacting LDetek support Figure 55 : Firmware Update...
Page 74
MULTIDETEK 2 User’s manual 4-20mA1+ to 4-20mA10+: Analog output positive terminals for peak #1 to peak #10 (use 500ohm resistor between + and – terminals for 0-10VDC resolution on data recorder) 4-20mA1- to 4-20mA 10-: Analog output negative terminals for peak #1 to peak #10 (use 500ohm resistor between + and –...
Page 76
MULTIDETEK 2 User’s manual Unit dimensions and cut out dimensions...
Page 77
MULTIDETEK 2 User’s manual Back Panel (Complete assembly) Top section is for gas connections Bottom section is removable on track to have an easy access to inside electronic components.
MULTIDETEK 2 User’s manual Back Panel (Bottom section is for electrical connections) Bottom section is removable on track to have access to inside components.
Page 79
MULTIDETEK 2 User’s manual Back Panel (Top section is for gas connections) Top section is fix for gas connections...
Page 80
MULTIDETEK 2 User’s manual Top and bottom rack section LDEPC Diaphragm carrier flow valves LDEPC Solenoid valves for regulators electronic valve actuation Power Power input control PCBs supplies Ethernet and serial ports USB and VGA ports Back panel connectors Sample valve 4-20mA Motherboard analog...
Page 81
MULTIDETEK 2 User’s manual TCD detector PED detector Easy front access door Panel PC Accessible isothermal ovens (6x)
Referring to the spare part list: the manufacturer item numbers, the descriptions, the replacement frequencies as well as the associated procedure numbers are identified. 10.1 Spare part list Contact LDetek service department (support@ldetek.com) with the serial number of your instrument for the spare part list referring to your instrument.
Page 85
8.0. The green LED turns on when the oven is heating. Check if the LED is ON or OFF or blinking. If the setpoint is 50Celsius and the reading value is 10Celsius, then the LED should be ON all the time 5. Contact LDetek support (support@ldetek.com) with the results obtained in the previous steps 1.
Page 86
1. Make sure there is no active alarm. If there are alarms, they must be resolved 2. Make sure the calibration has been done properly 3. Provide the followings information to a LDetek support (support@ldetek.com) Unstable reading...
Need help?
Do you have a question about the MultiDetek2 and is the answer not in the manual?
Questions and answers