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SERVOTOUGH LaserExact Monitor, Operator Manual  02950001A_1

 

 

 

I 

TABLE OF CONTENTS 

 

1.

 

INTRODUCTION ........................................................................................................................1

 

1.1

 

S

AFETY 

I

NFORMATION

 ...............................................................................................................1

 

1.2

 

G

ENERAL

 .................................................................................................................................1

 

1.3

 

M

EASURING PRINCIPLE

 .............................................................................................................2

 

1.4

 

I

NSTRUMENT DESCRIPTION

 ........................................................................................................4

 

1.5

 

S

OFTWARE

 ...............................................................................................................................5

 

1.6

 

L

ASER 

C

LASSIFICATION

 .............................................................................................................6

 

1.7

 

P

RODUCT 

D

ATA

 ........................................................................................................................7

 

2.

 

PREPARATIONS .......................................................................................................................8

 

2.1

 

T

OOLS AND OTHER EQUIPMENT

 .................................................................................................8

 

2.2

 

F

LOW CONDITIONS

 ....................................................................................................................8

 

2.3

 

C

ELL 

M

ATERIALS

 ......................................................................................................................8

 

2.4

 

C

ABLES AND ELECTRICAL CONNECTIONS

 ....................................................................................8

 

2.5

 

S

TICKY GASES

 ..........................................................................................................................9

 

3.

 

INSTALLATION ...................................................................................................................... 10

 

3.1

 

L

ABELLING

 ............................................................................................................................ 10

 

3.2

 

I

NSTALLATION AND ADJUSTMENTS

 ........................................................................................... 11

 

3.2.1

 

SERVOTOUGH LaserExact installation ......................................................................... 12

 

3.2.2

 

Purging of laser beam alignment chamber ..................................................................... 14

 

3.2.3

 

Laser module purge ........................................................................................................ 15

 

3.3

 

S

TART

-

UP

 ............................................................................................................................. 16

 

3.4

 

A

LIGNMENT OF LASER BEAM

 ................................................................................................... 16

 

3.5

 

C

ONNECTING A 

PC ................................................................................................................ 19

 

3.6

 

I

NSTALLING A MODEM

 ............................................................................................................. 19

 

4.

 

THE SERVICE PROGRAM ..................................................................................................... 20

 

4.1

 

S

OFTWARE START

-

UP

 ............................................................................................................ 20

 

4.2

 

T

HE MEASUREMENT MENU

 ...................................................................................................... 22

 

4.3

 

T

HE PROGRAM MENUS

 ........................................................................................................... 25

 

4.3.1

 

Plot readings ................................................................................................................... 25

 

4.3.2

 

Second harmonic signal .................................................................................................. 25

 

4.3.3

 

Log readings ................................................................................................................... 26

 

4.3.4

 

View error log .................................................................................................................. 27

 

4.3.5

 

Measurement configuration ............................................................................................ 28

 

4.3.6

 

Gas specific parameters ................................................................................................. 33

 

4.3.7

 

Calibrate instrument ........................................................................................................ 36

 

4.3.8

 

TCP/IP and modem configuration ................................................................................... 38

 

4.3.9

 

File download / upload .................................................................................................... 39

 

4.3.10

 

Manual instrument control .......................................................................................... 40

 

5.

 

OPERATION, MAINTENANCE AND CALIBRATION ............................................................ 41

 

5.1

 

O

PERATING MODES

 ................................................................................................................ 41

 

5.2

 

M

AINTENANCE

 ....................................................................................................................... 43

 

5.2.1

 

Routine maintenance ...................................................................................................... 43

 

5.2.2

 

Servicing the LaserExact cell .......................................................................................... 44

 

5.3

 

C

ALIBRATION OF THE INSTRUMENT

 .......................................................................................... 45

 

5.3.1

 

PROPORTIONAL versus GLOBAL calibration ............................................................... 48

 

5.4

 

T

ROUBLESHOOTING THE INSTRUMENT

 ..................................................................................... 48

 

6.

 

ELECTRICAL CONNECTIONS .............................................................................................. 52

 

6.1

 

C

ABINET INTERFACE

 .............................................................................................................. 53

 

6.2

 

P

OWER CABLE CONNECTIONS

 ................................................................................................. 54

 

6.3

 

A

UXILIARY CONNECTIONS

 ....................................................................................................... 54

 

Содержание SERVOTOUGH LaserExact 2950

Страница 1: ...02950001A 1 Part Number Revision Language UK English Operator Manual SERVOTOUGH LaserExact Model 2950 PROCESS ANALYSERS For Windows Software v 6 1...

Страница 2: ...This page intentionally blank...

Страница 3: ...CONNECTING A PC 19 3 6 INSTALLING A MODEM 19 4 THE SERVICE PROGRAM 20 4 1 SOFTWARE START UP 20 4 2 THE MEASUREMENT MENU 22 4 3 THE PROGRAM MENUS 25 4 3 1 Plot readings 25 4 3 2 Second harmonic signal...

Страница 4: ...RELAY INDICATIONS 58 6 9 CONFIGURING RELAY 3 OUTPUT 60 6 9 1 Normal configuration of relay 3 Gas Alarm 60 6 9 2 Inverted configuration of relay 3 Gas alarm 61 6 9 3 Maintenance configuration of relay...

Страница 5: ...IRRORS 18 FIGURE 6 1 CABINET ELECTRONIC INTERFACE 53 FIGURE 6 2 CURRENT LOOP INPUT ACTIVE PROBE 56 FIGURE 6 3 CURRENT LOOP INPUT PASSIVE PROBE 57 FIGURE 6 4 MAIN BOARD FUSES AND LED S LAYOUT 58 TABLES...

Страница 6: ...SERVOTOUGH LaserExact Monitor Operator Manual 02950001A_1 IV This page intentionally blank...

Страница 7: ...ware of information which is used as follows This highlights information which it is useful for you to be aware of for example specific operating conditions and so on 1 2 General This manual contains...

Страница 8: ...path of between 0 7 and approximately 11m The measuring technique is based on measuring the absorption of light by the gas molecules present in the cell The measuring principle is infrared single line...

Страница 9: ...asures the concentration of only the FREE molecules of the specific gas thus not being sensitive to the molecules bound with some other molecules into complexes and to the molecules attached to or dis...

Страница 10: ...ment In addition communication via an Ethernet connector is possible The receiver inside the cabinet contains a detector connected to the receiver electronics with a short cable The detected signal is...

Страница 11: ...r optional Power supply 4 20 mA in RS 232 Ethernet Auxiliary board Relay out Ethernet board optional Main board CPU board LCD display Figure 1 2 Block diagram of instrument electronics 1 5 Software So...

Страница 12: ...s to be measured The lasers have an output power and optical arrangement which according to IEC 60825 1 2007 classifies the SERVOTOUGH LaserExact Monitors as Laser Class 3R Laser Product Accordingly t...

Страница 13: ...s suitable for indoor use Operating pressure range 101 3kPa 20 10 1 013bar 20 10 Maximum operating altitude 2000m Protection classification IP65 Electrical Data Input power supply unit mains 100 240 V...

Страница 14: ...optional MgF2 overcoat NB The Au is protected but the BK7 is exposed to the gas Sapphire window for beam entrance O rings Viton other materials on request 2 4 Cables and electrical connections There a...

Страница 15: ...l care should be taken for reactive and sticky gases such as NH3 HCl and H2S Because of the nature of these gases it is difficult to obtain the correct concentration in the cell due to possible adsorp...

Страница 16: ...ls have been affixed Instructions Specific to Hazardous Area Installations WARNING The ATEX Zone 2 and CSA CL I Div 2 Hazardous area variants cannot be used for oxygen enriched samples that is gases o...

Страница 17: ...scribed in this section refers to Figure 3 1 Figure 3 1 SERVOTOUGH LaserExact Monitor Overview 1 Cabinet 2 Display 3 LaserExact cell 4 Gas inlet std 6 mm SS pipe 5 Gas outlet std 8 mm SS pipe 6 Laser...

Страница 18: ...ual and to the special conditions of installation contained within the manual WARNING Make sure that power is disconnected or switched off before connecting any cable WARNING Obey the safety instructi...

Страница 19: ...h the instructions below and the beam cannot be accessed CAUTION Do not install the Laser monitor on a surface which is subject to high levels of vibration or sudden jolts If you do sample measurement...

Страница 20: ...uments operate without probes Input signals are connected to the terminals inside the cabinet 6 Open the gas lines Check all connections for gas leaks before operating the monitor The SERVOTOUGH Laser...

Страница 21: ...g of the sample system before inspecting the unit Figure 3 2 Purge connections 3 2 3 Laser module purge A second purge system may also be fitted to the LaserExact monitor This purge is for measurement...

Страница 22: ...ent has changed during transport Let the instrument run for at least one hour before eventually realigning the instrument as to allow the temperature of the instrument to stabilize and stresses in mec...

Страница 23: ...red by connecting a voltmeter to the white plug J14 line up voltage inside the cabinet using the supplied cable 5 There are two mirrors inside the laser beam alignment chamber the input coupling mirro...

Страница 24: ...LaserExact Monitor Operator Manual 02950001A_1 18 CHAPTER 3 Figure 3 3 Alignment chamber access panel Figure 3 4 Coupling mirrors Adjusting Screws Output Coupling Mirror Input Coupling Mirror Mirror a...

Страница 25: ...e see Chapter 4 for detailed description Process gas pressure and temperature Chapter 4 3 5 Instrument gas alarm level Chapter 4 3 6 Gas concentration corresponding to 4 and 20 mA Chapter 4 3 5 Concen...

Страница 26: ...ile 6 Observe and erase the instrument error logging 7 Configure the 4 20 mA process temperature and pressure inputs 8 Configure the 4 20 mA measurement output 9 Change the measurement averaging time...

Страница 27: ...asked for IP address and port number The IP address and port numbers are typically set to default values 192 168 1 237 and 5001 respectively If the IP address and port number need to be changed run th...

Страница 28: ...iles are needed for this mode to work dmp or rea and set or stt These files can be created using the service program when a PC is connected to an instrument The files are created by downloading the in...

Страница 29: ...n Instant Displays the last value calculated by the SERVOTOUGH LaserExact with no averaging This is in the following called a primary measurement Concentration Average Displays the running average cal...

Страница 30: ...re C The temperature currently used to calculate the gas concentration It may be a fixed value set by the user the value measured by a 4 20 mA current T probe or the value measured by the instrument i...

Страница 31: ...Bar The ambient pressure measured by the embedded pressure sensor located inside the cabinet 4 3 The program menus 4 3 1 Plot readings Plot readings plots the measured average and instant concentratio...

Страница 32: ...al There will be shown two curves for each signal 4 3 3 Log readings With Custom Logging all data displayed in the Measurements menu can be logged to an ASCII file at specified regular intervals The s...

Страница 33: ...r pressing View error log the program downloads the log of the instrument s errors and warnings see Section 5 4 for description of the errors including the date and time of their last activation and d...

Страница 34: ...ion averaging page 2 Optical path variables page 2 Instrument time page 2 Note that the parameters are modified in the program but the instrument is not updated with the new values until the button Up...

Страница 35: ...lowing approximate relation can be used T C T K 273 Pressure and temperature input method Pressure Temperature input method defines if the values are fixed or read with one of the following methods Cu...

Страница 36: ...the laser unit The following lengths apply for the analyser with standard cell Measurement region 11 412m Laser beam alignment chamber 0 240m Instrument region 0 003m These lengths are all factory set...

Страница 37: ...surements menu The instrument measures and calculates the gas concentration at regular intervals A primary measurement Concentration Instant in Measurements menu takes approximately 1 4 seconds depend...

Страница 38: ...other inputs the 4 mA and 20 mA values must be specified The current input can be used to connect an external gas sensor typically an H2O sensor for dry basis conversion to the instrument In this cas...

Страница 39: ...ntration based on the gas temperature and pressure input values The calculated H2O concentration is then used for dry basis conversion The maximum gas temperature for this method is about 90 C and the...

Страница 40: ...T 0 C Please note that the US standard for the relative units g Nm3 and mg Nm3 deviates with regard to standard temperature and refers to 25 C Note that the gas concentration is always measured on we...

Страница 41: ...h nitrogen but can be modified with the parameter GAS CONCENTRATION IN RU TU if necessary Note that the unit of the gas concentration in the alignment chamber is always g Nm3 irrespective of the unit...

Страница 42: ...th for the given gas pressure and temperature is used If switched ON the line width is measured from the shape of the second harmonic absorption line The value cannot be modified manually in this menu...

Страница 43: ...anently The calibration time will be updated automatically SERVOMEX calibrates all instruments under controlled conditions using certified gas This calibration is then verified for the specified range...

Страница 44: ...l modem cable see Section 3 6 The string is sent to the modem during start up of the instrument If the string has been modified the instrument should be restarted in order to re initialise the connect...

Страница 45: ...static parameters of the instrument including those in the different menus described above The filenames can be edited We recommend using the file extension rea or dmp for the instrument readings and...

Страница 46: ...d not be uploaded can be removed Note that updating the instrument with wrong settings such as laser current and laser temperature may damage the laser 4 3 10 Manual instrument control Enter Sleepmode...

Страница 47: ...t up 0 356 In the upper right corner of the LCD the software version used by the instrument is printed In this case the version is 6 1a1 The next row shows the cause for the instrument being in start...

Страница 48: ...the concentration and displays the message in the bottom line If the optional auxiliary board is installed a warning causes the WARNING relay to deactivate i e open but it does not affect the PLC outp...

Страница 49: ...by use of instrument output or WARNING relay or similar Adjust alignment when necessary see Section 3 4 Consider cleaning the LaserExact cell when transmission is very low see Section 5 2 2 At very l...

Страница 50: ...heavy Carefully lower the body the cell It is important to move it straight down Tilting the cell body could cause damage to the mirrors The inner rod with the two mirrors attached to it is now visibl...

Страница 51: ...instrument readings deviate less than 2 3 from the nominal value within the recommended concentration levels indicated below This is the typical absolute accuracy for calibration gas mixtures One sho...

Страница 52: ...agreement with the concentration of the certified gas If required perform calibration PROPORTIONAL or GLOBAL as described in Section 4 3 7 6 Save the instrument settings to a file as described in Sect...

Страница 53: ...length of the tubes When flushing calibration gas through the cell use large flow rates such as 5 7 L min Wait until the concentration in the cell has stabilised Check that the measured concentration...

Страница 54: ...e close to the values for the calibration cell It is also important to use dry gas mixed with nitrogen For O2 dry air can be used USE GLOBAL calibration If spectral properties of laser is believed to...

Страница 55: ...error ERROR Failure reading pressure through 4 20 mA PLC input Input current from pressure sensor is either above 23 7 mA or below 0 3 mA Check connections to pressure sensor or use fixed pressure set...

Страница 56: ...e cabinet is not overheated the error might indicate a bad electrical contact or other hardware failure Contact service personnel if repeated Low box temp High box temp ERROR Internal temperature of t...

Страница 57: ...ERROR The photo detector is saturating or transmission is 130 If the error remains when the receiver window is obscured this is an electronic fault Otherwise the error may occur after replacement of...

Страница 58: ...r conforms to all applicable local and national electrical safety requirements WARNING Wiring to or from this device which enters or leaves the system enclosure must utilize wiring methods suitable fo...

Страница 59: ...NAL 10 or 10 100 Base T Ethernet SERVICE CONNECTOR Isolated RS 232 AUXILIARY I O CONNECTOR Relay outputs 4 20 mA Outputs Optical Fibre Optional PURGE CONNECTOR Compression fitting for pipe or blank GA...

Страница 60: ...Error J10 10 Relay 1 B J10 11 Relay 2 A Warning J10 12 Relay 2 B J10 13 Relay 3 A High Gas J10 14 Relay 3 B J10 15 Zero J10 16 Chassis Table 6 2 Cabinet Auxiliary connections Relay x A B in Table 6 2...

Страница 61: ...put for gas concentration PLC2 optional output for transmission 4mA 0 20mA 100 transmission PLC3 not used For dual gas instrument the outputs are configured as follows PLC1 output for gas 1 concentrat...

Страница 62: ...d to the screw terminals marked with Probe and Probe or 24V for passive probe Probe refers to Temperature Pressure or Extra Flow Note that conductors with area 0 14 1 5 mm2 AWG 26 16 must be used The...

Страница 63: ...LED s to indicate status of different supply voltages Figure 6 4 shows the main transmitter board layout If the LED close to the main fuse 18 36V Input OK is lit but the other LED s are not check the...

Страница 64: ...Manual 02950001A_1 58 CHAPTER 6 Figure 6 4 Main board fuses and LED s layout 6 8 Relay indications The following table shows the different relay indications next page Relay indications X Activated co...

Страница 65: ...t 2 13 Maintenance O O X X 5 2mA Last 2 Table 6 5 Relay indications and outputs Relay indications X Activated conducting O Deactivated not conducting Notes 1 Relay 3 Gas alarm is the only function of...

Страница 66: ...as been deactivated the PLC holds the last measured value for a time interval that is proportional to the instrument averaging time In the current software version the time interval is T 3 After that...

Страница 67: ...nce configuration of relay 3 Maintenance indication is done by relay no 3 by setting the parameter Gas conc alarm level 1020 1E20 for all gaslines N of the instrument see Section 4 3 6 This ensures th...

Страница 68: ...digital apparatus requirements of ICES 003 of Canada through the application of IEC 61000 6 3 L analyseur est conforme aux Conditions B num riques d appareillage de classe de NMB 003 du Canada par l...

Страница 69: ...SERVOTOUGH LaserExact Monitor Operator Manual 02950001A_1 APPENDIX 63...

Страница 70: ...SERVOTOUGH LaserExact Monitor Operator Manual 02950001A_1 64 APPENDIX...

Страница 71: ...SERVOTOUGH LaserExact Monitor Operator Manual 02950001A_1 APPENDIX 65...

Страница 72: ...but shall be submitted for material recovery and recycling in accordance with any appropriate local regulations Additional advice and information on the disposal of this product in accordance with th...

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