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Technical

Description

4.12.7 Digital outputs

Digital output 1 (standard):

Included as standard in LT 2/KS1-DK basic electronics via internal relay
(1 change-over contact) (terminals 1, 2 and 3, also see 10.3).

Switching capacity 230VAC / 2A and 42VDC / 3A

Digital outputs 2 to 7 (optional extra):

Via internal relay module Type 657 R 0857 (6 relays - 1 changeover switch)

Switching capacity 230VAC / 4A and 48VDC / 3A

Digital outputs can be configured as desired using the display and operating unit and
remote display software. Parameter groups 1030 to 1099.

Factory setting:
•

Relay output 1: Collective fault quiescent current method

•

Relay output 2: Warning and maintenance

•

Relay output 3: Measurement

•

Relay output 4: Limit value 1

•

Relay output 5: Limit value 2

•

Relay output 6: Limit value 3

•

Relay output 7: Limit value 4

Parameters of digital inputs

Idle state

Here, the idle state is set. This state is present when none of the functions triggers a
switching operation. The Diagnostic mode setting allows the idle state to be changed
via the State parameter (see below).

•

LOW (normal open contacts)

•

HIGH (idle state)

• Diagnostic

mode

Parameters:
1030/1040/.../1090

Содержание LT2

Страница 1: ...s for Combustion Engineering LAMTEC SYSTEM BUS Combination probe KS1 DK O2 CO H2 Operation servicing to other LAMTEC FMS VMS ETAMATIC LT 1 LT 2 devices Option CANopen Modbus Profibus DP Ethernet RS 23...

Страница 2: ......

Страница 3: ...nd control elements of the LT 2 KS1 DK lambda transmitter 20 4 6 Display and operating unit 22 4 7 Analogue output 30 4 8 Digital inputs 31 4 9 LAMTEC SYSTEM BUS 33 4 10 RS 232 interface 34 4 11 Cold...

Страница 4: ...a of the LT 2 KS1 DK lambda transmitter 86 10 2 Technical data of the KS1 DK combination probe 89 10 3 Electrical connection 90 10 4 Pneumatic connection 93 10 5 Electrical connection to field bus mod...

Страница 5: ...be transferred to the owner or plant operator Liability for the function of the device shall be borne by the owner or plant operator insofar as the device has been used by persons without the necessa...

Страница 6: ...his indicates possible danger to persons in the event of improper handling of system parts CAUTION This indicates danger to system parts or possible adverse effects on function NOTE This provides the...

Страница 7: ...circumstances and risks and regulations pertaining to technical operation of the device are taken into consideration All necessary measures to preserve the value of the device e g for transport and st...

Страница 8: ...0105 or IEC 364 or directly comparable standards such as DIN 0832 The above persons have the supplied manuals and associated order related documentation at their disposal at all times during their wor...

Страница 9: ...ce personnel are trained to react appropriately to faults in the LT 2 KS1 DK and associated system malfunctions The faulty equipment is switched off immediately in cases of uncertainty Switching off e...

Страница 10: ...to corrosion and may damage system parts Do not store devices in the open air without protection Always store in a dry place and if possible in the original packaging Upon deinstallation protect cable...

Страница 11: ...ases of combustion systems in the superstoichiometric range l 1 in connection with the KS1 DK combination probe 3 1 System overview LAMTEC SYSTEM BUS Combination probe KS1 DK O2 CO H2 Operation servic...

Страница 12: ...uperstoichiometric range l 1 KS1 DK With calibrating gas connection for air test gas for semi automatic calibration Length 500mm Type 656 R 2030 1000mm Type 656 R 2031 1500mm Type 656 R 2032 In versio...

Страница 13: ...aust gas temperatures from 400 C 700 C With ceramic GED suitable for exhaust gas temperatures up to 1400 C Optional extras High dust guard Transmitter protective box with housing heater Plug Play Can...

Страница 14: ...This increases the housing size to 500 x 300 x 200 mm HWD Also see section 4 4 1 LT 2 KS1 DK lambda transmitter on mounting plate 350 x 258 x 132 mm HWD Without display and operating unit Type 657 R...

Страница 15: ...reference electrode Pt 2 US UH Schematic diagram of the structure of the KS1 DK combination probe The O2 measuring cell functions as an electrochemical concentration cell and generates a direct volta...

Страница 16: ...idly t60 times under 2s are achieved Sensitivity to O2 and flammable constituents is influenced by the sensor temperature A lower sensor temperature results in greater sensitivity to CO H2 and lower s...

Страница 17: ...calibrating the characteristic in line with the specific system by performing a CO reference measurement A further indicator for unburned residues CO H2 in combustion systems is the dynamics of the s...

Страница 18: ...e 2 seconds Measuring gas temperature up to 450 C Up to 1400 C possible with ejector pump Low heating power 20 25 watts depending on the exhaust gas temperature Universal Easy to use Low maintenance 4...

Страница 19: ...on 40 60l h 6 Display and operation unit built in in LT2 1e Cable glant M16 Probe heating 1f Cable glant M20 Absolut pressure sensor Difference pressure sensor Probe signals 7 Relay module 660R0017 fo...

Страница 20: ...nt signal Furthermore it features additional analogue inputs and outputs digital inputs and outputs for process status signals status signals and limit value signals as well as serial interfaces and a...

Страница 21: ...amplifier for converting the COe signal from mV into mA no longer required from January 2007 Connection for remote display software optional extra Transformer for probe and electronics Supply voltage...

Страница 22: ...tus display green LED 5 Maintenance switch S 1 Operation lights up Measurement lights up Calibration flashes Offset compensation flashes slowly With test gas comparative measurement flashes rapidly Ma...

Страница 23: ...If at least one warning or fault is present the button must be pressed for more than 6 seconds 4 5 2 Monitor output The monitor output terminal 31 32 allows a multimeter to be connected for example Vi...

Страница 24: ...in the display The screen is divided into three sections 1 The status bar at the upper edge of the screen This shows Whether Maintenance mode is active left The current operating state centre Whether...

Страница 25: ...on on ambient air Offset calibration with compressed air open before Calibration with reference measuring O2 calibration with test gas open gas CO calibration with test gas open gas You can select the...

Страница 26: ...in the various access levels To avoid confusion we therefore recommend that you use the change function 4 6 4 Menu function psw opens the sub menu for password entry and the Operation access level is...

Страница 27: ...roups are set out in the appendix The cursor keys left right correspond to the key function group or group If not all parameters of a group are displayed in the viewing window this situation is indica...

Страница 28: ...arameter is displayed in three ways Inverse display Parameter can be changed Bordered display Parameter cannot be changed Blinking display Edit Change mode is active You can now change the parameter v...

Страница 29: ...a limit value with the cursor and then press Enter the display switches to the Limit Value menu If you select maint the LT 2 KS1 DK can be switched to Maintenance mode as an alternative to using the m...

Страница 30: ...isplay P 971 Brightness This parameter regulates the brightness of the display s background illumination P 972 Language With this parameter you can set the language English German of the displayed tex...

Страница 31: ...ord must be entered in parameter 1472 see figure below CAUTION A few seconds after the password is entered it is accepted by the device and is displayed Thus once a password has been entered it can ne...

Страница 32: ...541 551 561 Setting the output value 4 20mA error 20mA 4 20mA error 0mA 4 20mA 0 20mA 0 10V 4 20mA maintenance 0mA Parameters 532 542 552 562 Lower range limit Parameters 533 543 553 563 Upper range l...

Страница 33: ...nsmitter can execute certain functions All eight digital inputs are identical in terms of structure and functionality The digital inputs are configured by means of the parameters listed below Factory...

Страница 34: ...ning reset Acknowledges present warnings Reset LV 1 Function A resets limit value 1 functions B C and D reset the limit values 2 3 and 4 respectively Therefore the corresponding LVs must be set to Ack...

Страница 35: ...1 default All devices that exchange values with one another must be set to the same family P3803 O2 OUTPUT VALUE default The LT transmits its O2 value for all devices of the same family NO The LT doe...

Страница 36: ...P362 for O2 in P372 for COe the Type of default value can be set OFF No default value is output ON The default value set in the parameter in front is output Maintenance factory setting The default va...

Страница 37: ...and 2 max potential difference 20 V configurable as desired Direct current 0 4 20 mA burden 0 600W Digital outputs in conjunction with relay module 657R0857 Field bus connection Heating for wall mount...

Страница 38: ...ss of exhaust gas due to latent heat qAf tA tL A2 21 O2 B The calculation of exhaust gas losses is based on the following mean fuel values Oil A2 0 68 B 0 007 Gas A2 0 66 B 0 009 It is assumed that th...

Страница 39: ...23 36 33 34 35 12 sensor heater sensor heater CO H2 O2 sensor signal O2 sensor signal CO H2 sensor signal Probe Connection Box KS1 DK diameters sensor heater up to 20 m 1 5 mm up to 50 m 2 5 mm 2 2 K...

Страница 40: ...LT 2 KS1 DK Lambda Transmitter LT 2 KS1 DK with efficiency calculation Flowmeter of the reference air with limit contactor 40 60l h Digital inputs 24 V ca 6 mA Bridge BR 106 BR 107 on power electronic...

Страница 41: ...ut 3 0 20 CO2 4 20mA 4 12 4 Load dependent fuel specific limit curves optional extra Type 6 57 R 0920 The load rating burner load or another measured variable is activated via analogue input 4 or the...

Страница 42: ...and operating unit and remote display software Parameter groups 1030 to 1099 Factory setting Relay output 1 Collective fault quiescent current method Relay output 2 Warning and maintenance Relay outp...

Страница 43: ...ue 2 and test gas 2 with function B etc Nevertheless thanks to the OR logic of the four functions all combinations can be set The following operating states can be selected as switching criteria Off W...

Страница 44: ...Ethernet Type 6 63 R 0406LT For details see separate publication DLT4002 Dimensions W130mm x H85mm x D115mm The option Field bus connection Modbus Profibus via communication processor board is includ...

Страница 45: ...wish to monitor is outside the range window this indicates that the reference value is lower than the Min comparative value or higher than the Max comparative value and so the limit value output is en...

Страница 46: ...LV constant param 933 943 953 963 Min LV constant param 934 944 954 964 If a constant value is selected as the reference value this constant is defined in Max or Min LV Please note that only integer v...

Страница 47: ...Good range it is only acknowledged at first and disappears on reaching the Good state Each individual limit value can now be deactivated with the Deact LVx function via the digital inputs x 1 2 3 4 Tr...

Страница 48: ...monitored reference value is or was outside the limits of Min LV and Max LV Parameters 914 917 The parameters Reset LV 1 Reset LV 2 Reset LV 3 and Reset LV 4 enable the limit value output to be reset...

Страница 49: ...Retrieval of limit value settings Press the diag diagnosis key Select the required limit value using the cursor keys The selected limit value is indicated by a border Limit value has been selected Pr...

Страница 50: ...9 From January 2007 Analogue input card for voltage 200 1000mV for activating the CO H2 sensor signal Type 6 57 P 0660 Analogue input card for current 0 4 20mA Type 6 63 P 6001 Analogue input card for...

Страница 51: ...guration number has 17 characters and is formulated according to the following code Configuration numbers for the LT 2 KS1 DK a Display and operating unit 0 Without 1 With b Pressure sensor via analog...

Страница 52: ...Namur 5 Temperature input PT 100 range 0 320 C 6 Temperature input PT 100 range 0 850 C 7 Current 0 4 20 mA with 24 V DC supply 8 Pressure sensor Type see b 9 Voltage 200 1000mV e Digital outputs 0 Op...

Страница 53: ...ring point max 450 C Cable cross sections Recommended cable cross sections between probe connection box PCB and data interpreting device LT 2 KS1 DK Measuring cell heater shielded Terminal 35 36 Other...

Страница 54: ...e below Ensure a suitable spot for wall mounting Ensure that the wall has a sufficient load carrying capacity and that the measuring system is easily accessible For electrical connection see section 1...

Страница 55: ...ction class IP00 Ensure sufficient ventilation provide forced ventilation if necessary Internal control cabinet temperature max 60 C For electrical connections and the probe connection see below For e...

Страница 56: ...signals Pressure sensors up to 20m 1 5 mm 2 up to 50m 2 5 mm 2 0 8 mm 2 Multicable 11 x 0 8 S Y ST Y LG WARNING Take care to ensure that cable routing and screening confirms to regulations Probe conne...

Страница 57: ...ange of the probe via parameter 109 So all stored datas of the probe will be deleted and uring offset calibration be refreshed CAUTION When installing the probe and during subsequent operation take ca...

Страница 58: ...g valve Which must be opened uring calibration with compressed air or test gas Should be the probe installed in a inaccessibly location a additional shut off plug valve can be installed in the near of...

Страница 59: ...O2 P372 for CO the type of default value can be set OFF No default value is output ON The default value set in the parameter in front is output Maintenance factory setting The default value set in the...

Страница 60: ...isplay software Monitor output When heated to operating temperature approx 30 minutes after switch on the measured internal resistance RI probe of the O2 electrode should equal 20 ohms 5 ohms If the m...

Страница 61: ...fault No reference air Initiation time 1 hour 1 Calibrate the differential pressure sensor to 0 To do so close the reference air throttle completely and set parameter 108 in the LT 2 KS1 DK to initia...

Страница 62: ...eted Several possibilities exist for calibrating both sensors of the probe Offset calibration on ambient air chapter 6 5 1 The probe must be located at ambient air alternativ Offset calibration with c...

Страница 63: ...of the probe Uring offset calibration in ambient air the O2 sensor will be calibrated to 21 U COe voltage will be calibrated to 0 NOTE Offset calibration on ambient air only works with O2 values 18 Me...

Страница 64: ...h O2 values 18 For offset calibration compressed air with a pre pressure of 0 3bar must be connected to the Test gas hose connection on the PCB Menu function When you press the cal menu key Start cali...

Страница 65: ...strument air compressed air at the test gas connection of the probe or inadequate pre pressure 0 3bar The shut off plug valve in the PCB is not open The test gas throttle in the PCB is not open suffic...

Страница 66: ...al menu key Start calibration appears in the display After you have activated calibration select Calibration check with reference measurement When calibration with reference measurement starts there i...

Страница 67: ...ion starts there is a waiting time of 5 seconds before the values are displayed Change the O2 value with the cursor keys Press OK Following successful calibration close the shut off plug valve CAUTION...

Страница 68: ...before the values are displayed Change the COe value with the cursor keys Press OK Following successful calibration close the shut off plug valve CAUTION If you are calibrating the measurement value...

Страница 69: ...ning Shutdown 67 6 6 Test report A test report is supplied with each probe It is therefore possible to compare the current measurement values with the values from the test stand O2 sensor temperature...

Страница 70: ...y probe comes with a passport which must be filled out during commissioning The probe passport must always be enclosed in the case of complaints and repairs NOTE The settlement of problems on the basi...

Страница 71: ...on access level However this slows down the rate at which the display reaches a final value NOTE Increased damping also results in the artificial slowing down of the measurement signal 6 9 2 Shutdown...

Страница 72: ...ter commissioning 3 to 6 months for natural gas combustion See section 6 Commissioning the measurement CAUTION Don t forget After replacing the probe perform a new offset calibration in air and a new...

Страница 73: ...er CAUTION Check the measurement accuracy of the connected digital voltmeter If there is still a deviation check the buffer amplifier or replace the device Measuring range of buffer amplifier Input 50...

Страница 74: ...and when necessary cleaning the preliminary filter from dust and other deposits and the replacement of the ZrO2 measuring element at the given intervals 7 3 1 Checking the measurement Check the measu...

Страница 75: ...ads and knock the pins out The repair kit contains new screws and anti seize paste Clean the sintered metal preliminary filter Brush and blow out On installation ensure that the baffle plate is orient...

Страница 76: ...er 656 P 2030 ZrO2 ceramic 3 1 filter 650 P 2055 SIKA H 20 2 6 hex nut 650 P 2066 1 4571 1 6 hexagon socket head screw 650 P 2065 1 4571 3 Reinstall the KS1 DK combination probe and connect up the gas...

Страница 77: ...Check fuse F 5 see section 10 6 Inspect the probe heater If the heater is intact measure between the two pins of the probe heater connector recognisable by the two white wires approx 2 ohms cold appro...

Страница 78: ...ronics of the analogue outputs and replace if necessary It is possible that an analogue output that is not installed has been activated check installed outputs See sections 4 7 and 10 7 Influence exer...

Страница 79: ...quantity required for flowing around the reference electrode This can result in the falsification of the measurement value Possible causes There is no instrument air compressed air reference air pump...

Страница 80: ...2 Input value too high too low Analogue input 3 Input value too high too low Analogue input 4 Input value too high too low Analogue outputs configuration error Service warning 1 Service warning 2 No...

Страница 81: ...e air throttle is not open sufficiently The signal from the differential pressure sensor has drifted Measures Check electrical and pneumatic connections Reset the reference air quantity see 10 4 Fault...

Страница 82: ...f the KS1 DK Possible causes There is no test gas or compressed air at the test gas connection of the probe or inadequate pre pressure 0 3bar The shut off plug valve in the PCB is not open The test ga...

Страница 83: ...ith the inserted cards If necessary replace analogue output cards and or the processor board 8 2 12 Service warning 1 service warning 2 The service warning draws attention to the need for regular serv...

Страница 84: ...or limit values using the cursor keys up down The selected warning or fault which is displayed inverted can now be acknowledged or reset with ENTER Via digital inputs input 1 By pressing the multi fu...

Страница 85: ...H2 measuring cell repair kit Length 500 mm Type 6 56 R 2060 1 CO H2 measuring cell repair kit Length 1000 mm Type 6 56 R 2061 1 CO H2 measuring cell repair kit Length 1500 mm Type 6 56 R 2062 1 Sinter...

Страница 86: ...e complete average service life approx 2 5 years depending on fuel for measuring gas temperatures up to 450 C Length 1000 mm Type 6 56 R 2031 1 1 Replacement probe complete average service life approx...

Страница 87: ...1 Pressure sensor input card LT2 Type6 57 R 0650 2 1 Analogue input card 0 4 20 mA LT2 Type 6 63 P 6001 2 1 Analogue output card 0 4 20 mA 0 10 V floating LT2 Max potential difference 20 V Type 6 57 R...

Страница 88: ...Transport and storage 20 C 60 C 40 C 85 C Power supply voltage 230 V AC and 115 V AC 10 15 48 Hz 62 Hz To be used only in grounded power line networks Power consumption Typically 50 VA briefly 150 VA...

Страница 89: ...y setting Output 1 0 10 vol O2 4 20 mA Output 2 0 1000ppm 4 20mA Analogue input 2 Optional Via plug in cards on the LT 2 KS1 DK power pack electronics Analogue input card voltage 200 1000mV 6 57 P 066...

Страница 90: ...s 24 V DC based on device potential Can be switched over for external voltage sources floating via jumper Calculation options Calculation of efficiency of combustion Range 0 100 resolution 0 1 Calcula...

Страница 91: ...ctrode 50 950mV Resolution 1mV Error influencing factors Temperature Other unburned hydrocarbons Cross sensitivity To SO2 NH3 NO propane aromatic hydrocarbons Probe internal resistance of ZrO2 measuri...

Страница 92: ...12 sensor heater sensor heater CO H2 O2 sensor signal O2 sensor signal CO H2 sensor signal Probe Connection Box KS1 DK diameters sensor heater up to 20 m 1 5 mm up to 50 m 2 5 mm 2 2 KS1 DK To be used...

Страница 93: ...mV 2 S 60 24 V DC Lambda Transmitter LT 2 KS1 DK Lambda Transmitter LT 2 KS1 DK Digital inputs 24 V ca 6 mA Bridge BR 106 BR 107 on power electronics 1 2 referenced to bottom instrument potential 2 3...

Страница 94: ...13 14 12 10 11 9 7 8 6 4 5 3 1 2 d6 d5 d4 d3 d2 d1 Relay outputs 2 7 Max 230 VAC 4A 48VDC 3A Lambda Transmitter LT 2 KS 1DK Relay Module 660 R 0857 Terminal strip x2 Output 7 Output 6 Output 5 Output...

Страница 95: ...e air Shut off plug valve Testgas Hose connector Testgas Pressure air or Testgas pre pressure 0 3bar Air outlet Throttle for Testgas to the probe Set difference pressure to 2 4 mbar Hose connection fo...

Страница 96: ...ternal valve can be always opened CAUTION After calibration the compressed air or test gas must be closed The reference air must be always connected and be opened 10 5 Electrical connection to field b...

Страница 97: ...slow blow for 230V when option heating for wall mounting case Primary fuse F2 0 4A slow blow Probe measurement electronics F3 1A slow blow 12 V for display background illumination F4 1 25A slow blow 5...

Страница 98: ...1 on mainboard Selection of LSB termination resistor 1 2 disable 2 3 enable BR12 and BR13 on processor board to position C Digital inputs BR106 107 Setting 1 2 Digital inputs based on device potential...

Страница 99: ...pieces description item number material a 1 Probe head 650 P 2055 1 4571 b 1 Reception tube with housing 650 P 2050 2052 1 4571 c 1 Probe connection box PCB 656 P 2034 2054 Die cast AL d 1 KS 1D probe...

Страница 100: ...all mounted housing 150 400 175 30 300 85 115 LAMBDA TRANSMITTER LT2 55 22 5 35 5 45 35 6 Type 657 R 1028 without pump for reference air Type 657 R 1060 with integ pump for reference air 200 500 175 3...

Страница 101: ...10 Appendix 99 10 10 Dimension drawing of LT 2 KS1 DK on mounting plate...

Страница 102: ...10 Appendix 100 10 11 Dimension drawing of display and operating unit for panel installation LAMBDA TRANSMITTER LT2 REMOTE Tafelausschnitt panel cutout D coupe panneau 276x135mm...

Страница 103: ...2 0 4 6 8 10 12 0 1 Gas Oil 2 3 4 5 6 O concentration range K constant K constant Gas CH Oil CH 2 4 2 x 0 6 O 1 18 1 115 6 12 O 1 12 1 08 0 12 O 1 15 1 10 2 2 2 Theoretical maximum deviations between...

Страница 104: ...with the stipulations of the above mentioned Directives is proven by their compliance with the following standards and regulations Harmonised European Standards Reference number Date of publication DI...

Страница 105: ...0 Walldorf Tel 49 06227 6052 0 Fax 49 06227 6052 57 Internet http www lamtec de e mail info lamtec de LAMTEC Leipzig GmbH Co KG Schlesierstra e 55 D 04299 Leipzig Tel 49 0341 863294 00 Fax 49 0341 863...

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