Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Teledyne Analytical Instruments LGA-4000Z
Summary of Contents for Teledyne Analytical Instruments LGA-4000Z
- Page 1 Use and Disclosure of Data Information contained herein is classified as EAR99 under the U.S. Export Administration Regulations. Export, reexport or diversion contrary to U.S. law is prohibited. Teledyne Confidential; Commercially Sensitive Business Data...
-
Page 7: Table Of Contents
LGA-4000Z Diode Laser Gas Analyzer Contents Introduction ..........................1 User Notice ........................ 1 Marks Instruction ...................... 1 Applicable Personnel ....................2 Package and Transport....................3 Precautions ........................ 3 Quality and Warranty ....................4 Overview ..........................4 Product Certification ....................4 Working Principle ...................... - Page 8 LGA-4000Z Diode Laser Gas Analyzer Keys Definition & Operations ................27 Power-on Self-test ....................28 Main Interface ......................28 Interface Menu ......................30 Keyboard Operation ....................30 Measurement & Calibration Setting ............... 31 System Management ....................35 Working State ......................40 Maintenance Information ..................
-
Page 9: Introduction
LGA-4000Z Diode Laser Gas Analyzer 1 Introduction User Notice Thanks for choosing our product. Please read this manual carefully before performing installation, wiring, operation, and maintenance. Please keep this manual properly for future reference. The manual is addressed to technically qualified personnel who are specially trained or who have the relevant knowledge of instrumentation and control technology. -
Page 10: Applicable Personnel
LGA-4000Z Diode Laser Gas Analyzer Caution: Important information needed to pay special attention when operating the product. Warning: Personal injury and property loss may result if proper precautions are not taken. Danger Tremendous personal injury and property loss will result if proper precautions are not taken. -
Page 11: Package And Transport
LGA-4000Z Diode Laser Gas Analyzer Package and Transport The transport scope of each part is decided by the effective contract described in the attached transport document. Please follow the related instructions to open the packing case. After unpacking, timely check the articles according to the shipping list. -
Page 12: Quality And Warranty
Product Certification 2.1.1 CE Certification Our LGA-4000Z Diode Laser Gas Analyzer has obtained certification of CE-EMC, RoHS and Safety under CE Certification. The result indicates the instrument meets standards of IEC 62321-1:2013, IEC 62321-2:2013, IEC 62321-3-1:2013, IEC 62321-4:2013, IEC 62321-5:2013,... -
Page 13: Working Principle
LGA-4000Z Diode Laser Gas Analyzer 2.1.2 Explosion-proof Certification The certification result shows the Ex-mark of the LGA-4000Z Diode Laser Gas Analyzer is: Ex db op is IIC T6 Gb Ex tb op IIIC T80℃ Db It is applied to explosive gas atmosphere of area 1 and 2, and explosive dust atmosphere of area 21 and 22, meeting the following standards: EN 60079-0:2012+A11:2013, EN 60079-1:2014, EN60079-28:2015, EN 60079-31:2014;... -
Page 14: Technical Advantages
Fig. 2.1 Functional block diagram of Diode Laser Gas Analyzer Technical Advantages The LGA-4000Z Diode Laser Gas Analyzer can be directly installed in process gas pipeline, with the advantages of no complicated sampling, no pre-treatment system, simple structure and no moving parts. - Page 15 Dispensing with sampling system, the LGA-4000Z Diode Laser Gas Analyzer greatly reduces maintenance of the system. The analyzer has small drift and good stability. Generally, the zero drift and span drift meets ≤±1%F.S/six months.
-
Page 16: Product Index
LGA-4000Z Diode Laser Gas Analyzer Product Index Table 2.1 Product Index Measurement data Measuring principle TDLAS (Tunable Diode Laser Absorption Spectroscopy) Light source Semiconductor laser (imported) Length of optical channel ≤20m Response time ≤1s Linearity error No more than ±2%F.S. -
Page 17: Safety Information
LGA-4000Z Diode Laser Gas Analyzer Safety Information The LGA-4000Z Diode Laser Gas Analyzer has been taken full account of the safety of operator on design. According to the standards of IEC 60825-1:2007, it is the Class 1 laser product in normal use. -
Page 18: Transmitting Unit
Fig. 3.3 Receiving unit Purging Unit To ensure the LGA-4000Z Diode Laser Gas Analyzer can continuously work in poor environment for a long term, purge gas is required to clean optical windows on the transmitting and receiving unit to prevent dust or other pollutants in environment from polluting the optical windows and... -
Page 19: Junction Box
LGA-4000Z Diode Laser Gas Analyzer affect measurement. The purging unit consists of filter, reducing valve and flow stabilizer to provide stable purge gas source. The interface definition and dimension diagram of purging unit is shown as follows. The following figure is the interface definition and dimension diagram of purging unit. -
Page 20: Installation
（3） Check if the instrument is in good condition after unpacking, and verify whether there is missing part according to parts list. Before installation, please read installation procedure and introduction of the LGA-4000Z Diode Laser Gas Analyzer carefully. It is necessary to make sure the power is cut off before cable connection. -
Page 21: Installation Point Selection
LGA-4000Z Diode Laser Gas Analyzer Name Instruction Transmitting unit Drive gas source to emit detection signal Receive detection signal; analyze, calculate and display Receiving unit concentration information, etc. Process gas pipeline Instrument flange Connect transmitting or receiving unit Welded flange... -
Page 22: Hole Opening & Flange Welding
LGA-4000Z Diode Laser Gas Analyzer Fig. 4.2 Installation diagram of sunshade Fig. 4.3 Top view of sunshade installation Hole Opening & Flange Welding If condition allows, the flange installation and optical path adjustment shall be performed when furnace is shut down. If the condition does not permit, it is required for the professional to conduct operations like gas welding with good protection. - Page 23 LGA-4000Z Diode Laser Gas Analyzer Water level Water level Flexible PVC pipe Fig. 4.5 Use of leveling pipe Under the effect of gravity, the water levels on both sides of flexible pipe will keep horizontal; make the very bottom of opening positions at both sides flush with the water level, so that it can ensure the flange opening positions are in the same level.
- Page 24 LGA-4000Z Diode Laser Gas Analyzer Fig. 4.7 Welded flange dimension In order to ensure flanges at both ends have good coaxiality after welding; please refer to the following two installation methods: a) If condition allows, use suitable steel pipe of which outer diameter is (48~50)mm. Open two parallel holes and pass the steel pipe through the two holes.
- Page 25 LGA-4000Z Diode Laser Gas Analyzer Flange for welding Welded flange Optical path Red light passes through adjustment tools then center of hole Process pipe Fig. 4.9 Flange installation 2 Fig. 4.10 Permissible error of coaxiality Fig. 4.11 Field installation ...
- Page 26 LGA-4000Z Diode Laser Gas Analyzer Fig. 4.12 Standard support of instrument installation Caution: For installation of support or bracket at site, please reduce standard operations and make it reliable and solid. During welding, first spot weld flange or weld a small part of it, and use optical path adjustment tools to observe coaxial situation of flange.
- Page 27 LGA-4000Z Diode Laser Gas Analyzer Connecting hole position of welded flange and adapter tube Connecting hole position of welded flange and adapter tube Fig. 4.14 Connecting hole position of the welded flange and adapter tube The installation point of integrated flange is usually the occasion that the working condition is quite severe.
-
Page 28: Installation Of Root Valve And Instrument Flange
LGA-4000Z Diode Laser Gas Analyzer When the working condition is extremely bad, the sheltering performance of the integrated flange might not be very good. At this time, it is required to add a baffle or channel steel (width of 12m~15m) 10cm~15cm in front of the flange, as shown below. -
Page 29: Coaxiality Adjustment Of Flanges
LGA-4000Z Diode Laser Gas Analyzer The instrument flange is fixed via four pairs of M16 bolts on root valve flange. During installation, please pay attention to the following matters. Pay attention to the direction of root valve direction shall be upward and one-way valve is necessary. -
Page 30: Installation & Disassembly Of Transmitting/Receiving Unit
LGA-4000Z Diode Laser Gas Analyzer Fig. 4.20 Use laser pen to adjust instrument flange Exchange light source and light target; repeat step (1) Repeat step (2) for multiple times until light spot still places in the center of reticle after exchanging light source and light target. -
Page 31: Junction Box Installation
Fig. 4.23 Disassembly diagram of junction box Purging Unit Installation The purging unit of LGA-4000Z Diode Laser Gas Analyzer can employ compresses air (or nitrogen) as gas source. During installation, use M8 bolts to fix it between transmitting and receiving unit and connect the main pipe of gas source to the inlet; use 8mm copper/stainless... -
Page 32: Electrical Connection
Electrical Connection The power of LGA-4000Z Diode Laser Gas Analyzer employs standard 24V DC voltage input, and the analyzer provides rich input/output signal interfaces, including relay output, 4-20mA output, 4-20mA compensating signal input and RS485/232 communication interface. The specific definition of electrical connection for the above interface signals can be seen in the following figure. - Page 33 LGA-4000Z Diode Laser Gas Analyzer Fig. 4.24 Wiring board diagram Fig. 4.25 Signal interface diagram of junction box The outside diameter range of power line used for electric connection is (Φ6~Φ9)mm. Two-core power line of which the section is 1.5 mm is the best.
-
Page 34: Power Up
LGA-4000Z Diode Laser Gas Analyzer Caution: For product equipped with junction box, electrical connection can be accessed through the junction box, rather than connecting through receiving terminal directly. Caution: When unplugging the connector of circuit board, pay attention to whether the tightening screws of the connector loosen totally and try to avoid unplugging the socket because of large force. -
Page 35: Software Operation
LGA-4000Z Diode Laser Gas Analyzer Loosen four M6 inner hexagon screws on the instrument flange of transmitting unit (refer to Figure 4.13), and adjust four M16 bolts to make the transmittance displayed on the OLED screen on receiving unit become “Normal”, and then fasten these four M6 inner hexagon screws. -
Page 36: Power-On Self-Test
LGA-4000Z Diode Laser Gas Analyzer Power-on Self-test When connecting the instrument to the power, it will enter power-on self-test state. Under the state, the instrument mainly checks the working state of each function module. The process will take about 2min. At this time, the OLED screen will display the boot screen, which consists of the company name, instrument name and model, etc. - Page 37 LGA-4000Z Diode Laser Gas Analyzer Working state (State): the working status that the analyzer stays at, which divides into measuring state, calibrating and maintaining state. Temperature (T): temperature of the measured gas Pressure (P): pressure of the measured gas Optical length (L): the length that laser passes through the measured gas When there is alarm message, the working mode will switch from “Normal”...
-
Page 38: Interface Menu
Default zero coef. Default span coef. Keyboard Operation The LGA-4000Z Diode Laser Gas Analyzer employs magnetic pen to operate Hall switch for key selection and operation. Under main interface, use magnetic pen to click “ (Enter)” and it will prompt to enter correct password. The default password is 1122. Input the correct password to... -
Page 39: Measurement & Calibration Setting
LGA-4000Z Diode Laser Gas Analyzer Main menu Meas. ＆ Cal. Maintenance System Communication Work Status Fig. 5.5 Main menu Caution: If there is no operation within 15 min after entering the main menu, it will return to main interface automatically in order to ensure the security of user information. - Page 40 LGA-4000Z Diode Laser Gas Analyzer Meas. ＆ Cal.→Meas. Parm.→Opt. Length Optical length 1.00 m Fig. 5.8 “Opt. Length” interface The temperature compensation method can choose internal setting or 4-20mA input. When the measured gas temperature is known and the change of gas temperature is small, internal setting mode can be selected.
-
Page 41: Calibration Setting
LGA-4000Z Diode Laser Gas Analyzer Fig. 5.11“Gas Humidity” interface Caution: When temperature/pressure compensation mode is set to be “4-20mA input”, first configure 4-20mA input parameter under “System”. 5.6.2 Calibration Setting The parameters on “Calibration” interface are mainly used during zeroing and span calibration. - Page 42 LGA-4000Z Diode Laser Gas Analyzer Fig. 5.15 “Avg. Times” interface When preparing zeroing, first inject zero gas (nitrogen of which the purity is larger than 99.99% is highly recommended). Wait until the measured concentration stabilizes and enter “Zero” interface. Use magnetic pen to click “...
-
Page 43: System Management
LGA-4000Z Diode Laser Gas Analyzer Fig. 5.19 Current calibration coefficient interface Fig. 5.20 Default calibration coefficient interface Caution: When conducting calibration, the analyzer shall be installed in calibration gas chamber and set the parameters correctly under calibrating state, including optical length, gas temperature and gas pressure, etc. - Page 44 LGA-4000Z Diode Laser Gas Analyzer There are two 4-20mA outputs which can set to be gas concentration, transmittance, higher calorific value, lower calorific value and Null. The set concentration of 4mA must be less than the that of 20mA, otherwise the system will prompt an error.
- Page 45 LGA-4000Z Diode Laser Gas Analyzer System→Dig. Parm. Zero replace time Purge duration Purge hold time Fig. 5.27 “Dig. Parm.” interface The unit of concentration, length, temperature and pressure can be set on “Unit” interface. The concentration unit choose from “ppm”, “%”, “mg/m ”...
- Page 46 LGA-4000Z Diode Laser Gas Analyzer If user is not satisfied with the calibration result and cannot get a better one temporarily, user can restore the backup span calibration coefficient and zeroing coefficient (factory setting or backup earlier). The restoring interface is shown as follows.
- Page 47 LGA-4000Z Diode Laser Gas Analyzer System→Purge→Temp. Temperature 300.00 Fig. 5.35 Purge the temperature interface Fig. 5.36 Purge the pressure interface The purging mode can be selected from internal input mode, oxygen meter mode and 4-20mA input mode. System→Purge→Mode Internal input...
-
Page 48: Working State
LGA-4000Z Diode Laser Gas Analyzer Working State The working state indicates the status the instrument stays at. When the analyzer is installed in stack pipeline for sample gas measurement, select “Measuring” on the “Work Status” interface. If choosing “Measuring” successfully, the main interface will display “State M”. When the analyzer is installed in calibration gas chamber and inject calibration gas based on N , select “Calibrating”. - Page 49 LGA-4000Z Diode Laser Gas Analyzer Maintenance→Alarm Parm.→Conc. Alarm -lvl conc. -lvl conc. 23.50 23.50 upper limit upper limit -lvl conc. -lvl conc. 1.50 1.50 lower limit lower limit Fig. 5.43 “Conc. Alarm” interface Fig. 5.44 “TR Lower Limit” interface User can read temperature of receiver and transmitter on “Circuit Board Temp.” interface, as shown below.
-
Page 50: Communication Setting
LGA-4000Z Diode Laser Gas Analyzer 01/06 Maintenance→Alarm Record 2015-01-01 09:02 012 The pressure of gas is too high Previous Next Fig. 5.48 “Alarm Record” interface Communication Setting The “Communication” interface is used to realize communication configuration between instrument and upper computer. The communication mode is RS232/485 and the baud rate can choose from 4800, 9600, 19200 and 57600. - Page 51 LGA-4000Z Diode Laser Gas Analyzer Code Meaning Possible Reason Solution Check whether the output current Temperature of measured 4-20mA input signal of temperature of temperature transmitter is gas is too high is larger than 22mA larger than 22mA Measured The measured gas concentration is...
- Page 52 LGA-4000Z Diode Laser Gas Analyzer Code Meaning Possible Reason Solution high alarm second level The second level concentration of Check if the set lower limit of concentration of gas 2 is too gas 2 is lower than lower limit of...
-
Page 53: Regular Maintenance
LGA-4000Z Diode Laser Gas Analyzer Code Meaning Possible Reason Solution abnormal thermostat The feedback of thermostat is Thermostat exception Contact our technical department abnormal The pressure of purge gas is not enough, which causes optical Check if the optical window is Transmittance is too low window pollution;... -
Page 54: Instrument Calibration
Section 4.12 when OLED screen displays the transmittance is low. 6.2.3 Instrument Calibration Zeroing and span calibration has been conducted before delivery of LGA-4000Z Diode Laser Gas Analyzer, thus there is no need to calibrate the product on the first use. However, system parameters will drift along with the aging of electronic device, which will affect the accuracy of measurement. - Page 55 LGA-4000Z Diode Laser Gas Analyzer The LGA-4000Z Diode Laser Gas Analyzer adopts off-line calibration. The procedure is shown as follows. a） Before calibration, first remove the transmitting and receiving unit from instrument flanges and check if the optical window is clean and in good condition (without cracks); if so, take the next step.
- Page 56 LGA-4000Z Diode Laser Gas Analyzer Name Specification Transmitting unit Drive gas source to emit detection signal Vent Outlet of standard gas Pipe joint Calibration gas chamber Receive detection signal; analyze, calculate and display Receiving unit concentration information, etc. Φ8 flexible pipe...
-
Page 57: Specifications
Maintenance Cycle: ≤ 2 times per year, clean optical window Calibration Cycle: ≤ 2 times per year Signal Interface AO: 2×4-20mA output (isolated, max load 750Ω) AI: 2×4-20mA input (TEMP. and PRESS. compensation) Digital Output: RS485/RS232/GPRS Relay Output: 2 outputs (24V, 1A) Teledyne Analytical Instruments... -
Page 58: Recommended Spare Parts List
(if available) and the model and serial number of the instrument for which the parts are intended. Orders should be sent to: TELEDYNE Analytical Instruments 16830 Chestnut Street City of Industry, CA 91749-1580 Phone (626) 934-1500, Fax (626) 961-2538 Web: www.teledyne-ai.com...
Need help?
Do you have a question about the LGA-4000Z and is the answer not in the manual?
Questions and answers