RMT Robotics DX6106 Manual do Utilizador

Optical UnitDX6106 SeriesUser GuideJoint Stock CompanyRMT LtdRMT Ltd2002Rev. 1.10

Design FeaturesThe DX6106 Optical Unit is specially designed for a fastresponse, high sensitivity, low noise and low powerconsumption.A number of desi

2-5Theory of OperationRMT LtdRMT LtdRMT LtdRMT LtdDX6106The subsequent description assumes User has alreadydeveloped, manufactured and connected to th

44332210YAYAYAYAAX ×+×+×+×+=DDY0=REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX61062-6Calculated coefficients … of polynomialexpression and zero ratio m

Theory of OperationRMT LtdRMT LtdRMT LtdRMT LtdDX61062-73. To preserve high accuracy of the device it isnecessary to do “zero” adjustments periodicall

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX61062-8

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX61063. Construction of Optical Unit3-1The DX6106 OpticalUnit (Fig. 3.1 and 3.2)consists of a

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX61063-2The body of gassampling cell is made ofanodized aluminum alloy(Fig. 3.3). It has two gasinlets with

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX61063-3The main parameters of gas sampling cell are in Table3.1Table 3.1. Main parameters of

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX61063-4Fig. 3.6 DX6106.C40 gas sampling cell outline dimensions(in millimeters)2742402736.5The outline dim

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX61063-5OptocomponentPhotodetectorMeasuringchannelemitterReferencechannelemitterFig. 3.7. OPR

CopyrightLimited WarrantyTrademark AcknowledgmentsAll right reserved. Reproduction in any manner, in whole or in partis straightly prohibited without

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106As an example, the parametersof optoelements for methane(CH ) measurements areintroduced in the table

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX6106Fig. 3.10. 6102OptocomponentMating Module6102 Optocomponent Mating ModuleThe 6102 Optoco

Fig. 3.13. Functional Diagram of 6102 OptocomponentREV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106Legend– MOSFET switch– amplifier– Light Emitter– Ph

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX6106Table 3.2. DX6106 s pinsfunction descriptionystem interface connector X1Pin Mnemonic Des

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106PreamplifierThe preamplifier alternatively processes the signals ofmeasuring and reference channels.Th

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX6106Within the gas concentration varying scale, the outputsignal of measuring channel change

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106MTB=20HSCH1 = .5VFig. 3.16. Typical output signalwaveformThe preamplifier typical output signal wavefo

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX6106Thermoelectric CoolerThe TEC circuit diagram ispresented in Fig. 3.17.Driving by TE cool

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106Fig. 3.18. TEC power consumption vs operatingtemperaturePower, W0.51.01.52.00–15–20 –10–50510Temperatu

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX6106consumption; at higher temperature the output signals(and signal/noise ratio) are lower.

ContentsRMT LtdRMT LtdRMT LtdRMT LtdDX6106C-11. Introduction 1-12. Theory of Operation3.Principles of Operation 2-1Design Features 2-4Operation Overvi

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106Fig. 3.21. Maximal temperaturedifference vs operating currentfor 1MT04-059-16.(At zero heat load)If st

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX6106T = +20°CAMBTE Cooler SpecificationsElectrical ParametersDynamical Parameters26.80.512.3

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX61063-18

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX6106ThermistorFig. 3.22. Thermistorconnection in the 6102RTUREFRLCt°X17X13X16X14X18OUTTGNDAG

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106Fig. 3.23. Calibration of thermistor vs measured temperature253020151050–40 –20 0 20 40Temperature, °C

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX6106One can see that the temperature measurement accu-racy depends directly on . So the volt

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106It is obvious that the scheme responds to temperaturein a nonlinear manner. At over a limitedtemperatu

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX6106Fig. 3.25. Typical thermistor usageDX6106 Optical UnitADCRTRLCt°X17X13X16X14X18FilterX12

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106Light EmittersElectronicscheme for LightEmitters drivingis shown in Fig.3.26.The MOSFETtransistors are

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX6106Power Supply 5 V(+4…+6 V areavailable) throughresistor charges thecapacitor in timedurat

C-2REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106Fig. 3.28. Typical LED control circuitDACDACMicrocontroller+X26X24X25X23X21RECRSRGRGDX6106 Optical Uni

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX6106is easy to plot the load line (the curve in Fig.3.X)and to see that the forward current

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106The standard ElectricallyErasable PROM (EEPROM)24LC64 chip with two wire serialis placed on OpticalUni

Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX6106The detailed description of 24LC64 transfer protocol ispossible to obtain, for example,

3-30REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106EEPROM Data FormatVarious operating parameters can be stored in on-board EEPROM circuit:See recomm

3-31Construction of Optical UnitRMT LtdRMT LtdRMT LtdRMT LtdDX6106*)used only with DX6101 ControllerTable 3.4. EEPROM Data Format891076Parameters of t

3-32REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106

4. Installation TipsThere are two external power sources required forOptical Unit supply.An external +5V and -5V DC power sources with±2.5% output tol

4-2REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106Fig. 4.1. DX6106 power supplies connectionX22X26X15X17X13X16X14X18X12X11X24X25X23X21Powersupply+5VL

5-1CalibrationRMT LtdRMT LtdRMT LtdRMT LtdDX61065. CalibrationPreparationFirst of all User should prepare the set of calibrationgases.The number of ca

1-1IntroductionRMT LtdRMT LtdRMT LtdRMT LtdDX61061. IntroductionThe company RMT Ltd introduces new DX6106 seriesof Optical Units for gas measurement s

Any other sets of standard samples User can applyaccording to own reasons. But be sure that the samplesare within specified measurement range and thec

CalibrationRMT LtdRMT LtdRMT LtdRMT LtdDX61065-3Zero AdjustmentsTo ensure the high accuracy, simple adjustment can bemade during operation to adjust “

Re-CalibrationIn standard option, the DX6106 Optical Unit is deliveredwith one calibration data. The calibration is made atoptimal operating temperatu

MaintenanceRMT LtdRMT LtdRMT LtdRMT LtdDX61066-16. MaintenanceOptics CleaningIf the output signal of either channels (or both) becameappreciably less

6-2REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX6106Clean nowthe window of the optopair,spherical mirror,internal mirror (with a hole) from both sides.

Standard KitRMT LtdRMT LtdRMT LtdRMT LtdDX61067-17. Standard Kit146325798Optical UnitConnector’s housingConnector’s shrouded headerInterconnection cab

RMT LtdRMT LtdRMT LtdRMT LtdDX61067-2REV. 1.10/2002

SpecificationsRMT LtdRMT LtdRMT LtdRMT LtdDX61068-1CO2mnCHMeasured gasesCarbon DioxideHydrocarbons8. SpecificationsTypeDetectorNDIR multipass schemeLe

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX61068-20...1000 ppm< 3 ppm10 ppm0...5 % vol< 0.15 %0,5 %0.02 %0...20 % vol< 0.15 %0,5 %0...1000 p

9. Ordering GuideExample:[DX6106][01][504][A]DX6106 Series,CO Gas Option,0...5.0 10 ppm (0...5%) concentration range,aspiration type gas cell,2×4DX610

REV. 1.10/2002RMT LtdRMT LtdRMT LtdRMT LtdDX61061-2

RMT LtdRMT LtdRMT LtdRMT LtdDX61069-2REV. 1.10/2002

RMT LtdRMT LtdRMT LtdRMT LtdDX6106SpecificationsRMT Ltd. Leninskij prosp. 53, Moscow 119991 Russiaphone: 095-132-6817 fax: 095-135-0565e-mail: rmtcom@

2-12. Theory of OperationPrinciples of OperationThe NDIR (Non-Dispersive Infra-Red Spectroscopy)measurement method is implemented in the DX6106Optical

2-2where– intensity of light before pass through the gasvolume;– intensities of light after pass through the gasvolume;– absorption coefficient of the

2-3Reference channel isused for indirectmeasuring of theinitial intensity oflight, and allows toeliminate actualmeasurementsconditions (totaltranspare