XTDL-HT™ Optical Moisture Dew Point Analyzer User Manual
LAS.99.D.10027 Rev 1 September, 2013 COSA Xentaur Corporation www.cosaxentaur.com Copyright © 2013 All rights reserved. The contents of this publication are presented for informational purposes only. While every effort has been made to ensure this document error-free, it should not be construed as warranties or guarantees, expressed or implied, regarding the product or services described herein or its use or applicability.
Table of Contents Unpacking _________________________________________________________________________ 5 Warning Labels _____________________________________________________________________ 5 Overview __________________________________________________________________________ 6 Specifications ______________________________________________________________________ 7 Theory of Operation _________________________________________________________________ 8 Installation ______________________________________________
Analog Outputs ___________________________________________________________________ 26 Current Output _________________________________________________________________________ 26 Voltage Output _________________________________________________________________________ 26 Setup Menu ___________________________________________________________________________ 27 Remote Controlled ______________________________________________________________________ 28 Relays ____________________________________________________
Unpacking Unpack the XTDL-HT™ in a clean, dry area. Check the packing list for an itemized record of all equipment shipped. Examine all packing material for miscellaneous parts before discarding. Save the container until you determine that no shipping damage has occurred. Inspect the equipment for any signs of damage that may have occurred during shipment. If any part is damaged during shipment, file a claim against the carrier. Report the damage in detail, taking photographs if possible.
Overview The COSA Xentaur XTDL-HT™ is a tunable diode laser moisture analyzer with a new proprietary measurement cell designed for harsh environments, such as the dirty blanket gases in heat treating applications, where high particulate counts and corrosive gases cause other measuring systems to fail. It frees from the worry of cleaning the optics or frequently replacing sensing elements due to frequent drift or failure. Once calibrated at the factory, no further recalibration is required.
Specifications Specifications Measurement Range 3,000-25,000ppmV H2O -8.2 to 20.9°C (at 14.
Theory of Operation Atoms and molecules have absorption spectra that are distinctive to their species. The XTDL-HT™ measures water vapor in a sample by measuring an absorption line (wavelength) from the water vapor absorption spectrum. As a near-infrared laser beam passes through the sample cell, a photodetector measures the reduction in light intensity due to interaction with the sample.
Theory of Operation In typical laser absorption instruments, light beam is reflected on one or two mirrors inside the sample cell before reaching to the photodetector. When the mirror becomes fouled due to particulates or contamination, measurement will no longer be possible. The angle of reflection may change and the received light intensity may decrease too much affecting the calibration.
Installation Process Gas Inlet Mounting Bracket Mounting Plate Outlet Air Regulator Vent Calibration Gas Inlet Instrument Air Inlet Display Status Indicators Keypad Gas Sampling Filter Pressure Gauge Outlet Eductor Inlet Air Regulator Instrument Air Inlet Flow Meter Electrical Wiring Cable Grips Inlet Eductor Enclosure Installation For wall mounting installation, remove the top and bottom mounting plates and bolt the four mounting brackets to the wall.
Installation Extractive Installation Pressure Gauge Enclosure Regulator Ball Valve Outlet Connector Housing 7 Process Gas Inlet Relief Valve Baseplate Ball Valve Pipe Nipple Notes: Thredolet Calibration Gas Inlet 9 10 pipeline 6 Enclosure insulated on all sides to maintain nomially 34°C ± 1°C in a temperature range of -20°C to 50°C. Inlet rated to 6000 psig maximum. Flow rate is 2 l/min nominal. All ¼” Swaglok fittings and tubing. 1 Shop Air Inlet 5 4 8 Shop Air Inlet 2 5 2 1. 2. 3.
Electrical Connections There are four watertight cable grips on the bottom of XTDL-HT™ enclosure. They accommodate cables with diameter between 0.197” (5mm) and 0.472” (12mm).To install a cable, loosen the nut, and feed the cable through the grip. After connecting the cable, tighten the nut. Unused cable grips should be plugged to maintain integrity of the enclosure.
Installation Connecting Power The XTDL-HT™ requires AC power of 110/230VAC, 50/60 Hz. The voltage rating should be specified on the order and it is marked on the front panel label. Each instrument is provided with an international approved AC power cable, terminated with a connector according to the ordered option. This cable is provided strictly for testing the instrument; it should not be used in the final installation.
Interfacing to RS-232/RS-485 Depending on the ordered configuration, the XTDL-HT™ supports RS-232 or half-duplex RS-485 serial interface option. The serial cable should be fed through one of the cable grips (fourth cable grip is recommended). For RS-232, TxD, RxD, and Common Ground signals should be wired to the DIN-mounted terminal blocks marked 11, 12, and 13, respectively.
Installation Wiring Relay Contacts Standard XTDL-HT™ has one mechanical relay for user control. Two more relays are available when optional I/O board is installed. Depending on the ordered option, the instrument can be installed with: Mechanical relays (250VAC, 10A max. rating) Solid state relays (240VAC, 5A max. rating) Class I Division 2 relays (250VAC, 6A max. rating) Use wiring appropriate for the voltage and current that will be switched by the relays.
unsure whether accurate measurement is ready. If the instrument has been inactive for more than a month, run TruTune™ once before using measurement. TIP: Flow rate has no impact on instrument accuracy. Low flow rate increases the response time slightly. Therefore, it is more important to control the pressure than the flow rate.
User Interface User Interface The user interface consists of a graphical display, status indicators, and a keypad. Status Indicators There are two LED indicators between the display and keypad. The green LED is lit when power is applied to the instrument. The red LED is lit when an error condition is detected. Display The XTDL-HT™ uses a high contrast OLED display. This allows both indoor and outdoor operation.
Menu is also displayed by occupying the chart area. To enter the menu, press the key from the main screen. The instrument automatically exits the menu after 20 minutes of inactivity. Menu Section Menu Item Change display contrast Go to Display > Contrast Touch Keys Menu navigation is done through the four touch keys below the display. Each key has multiple functions depending on the state of the menu system.
User Interface When entering a new field value, by pressing and holding the key for 3 seconds the value will be incremented by the next magnitude. For example, if the current value is 100.0, every pressing of the key increments the value by 0.1. After holding the key for 3 seconds, the value will begin to increment by 1. After holding the key for another 3 seconds, the value will increment by 10, and so forth. Similarly, holding the key for 3 seconds will decrement the value by the next magnitude.
icon appears next to the relay status. The default user passcode is 0000 and the default administrator passcode is 1234.
Measurements Measurements In addition to the sample dew point, the XTDL-HT™ measures sample temperature, sample pressure, and enclosure temperature. All of these measurements have a set of parameters that can be modified via the menu and Modbus communication. With the optional I/O board, the XTDL-HT™ can read up to four external analog inputs that can also be used as measurements. Each measurement can be configured to trigger an alarm when it goes out of range.
Setup Menu Measurement Dewpoint Temperature Pressure Enclosure Temp Unit Unit Unit Unit Buffer Size Buffer Size Buffer Size Buffer Size Low Alarm Low Alarm Low Alarm Low Alarm High Alarm Critical Alarm Gas Matrix Tune High Alarm Critical Alarm High Alarm Critical Alarm High Alarm Critical Alarm User Input 1 User Input 2 User Input 3 User Input 4 Buffer Size Buffer Size Buffer Size Buffer Size Offset Offset Offset Offset Slope Slope Slope Slope Low Alarm Low Alarm Low Alarm Low Alarm High Alarm Critical
Modbus Communication Modbus Communication The XTDL-HT™ can be monitored and controlled remotely via the standard Modbus communication protocol. Every measurement and every menu field can be accessed via Modbus. Each field is assigned to a unique Modbus register. See Appendix B for a complete list of Modbus registers supported by the instrument. The instrument can be configured at the factory to support serial communication and/or Ethernet communication.
Setup Menu Communication Modbus Ethernet Serial 32-bit Format Channel 1 Address Channel 2 Address Ethernet Channel 1 Baud Rate Parity Stop Bits Timeout Chanel 2 Address Address Subnet Mask Gateway Timeout Port MAC Baud Rate Parity Stop Bits Timeout Serial and/or Ethernet menu would not appear if the instrument is not configured with serial and Ethernet interface. Modbus RTU The XTDL-HT™ supports Modbus RTU protocol on its serial ports.
Modbus Communication Modbus/TCP The Modbus/TCP protocol is used on Ethernet communication. The XTDL-HT™ supports traditional IPv4 internet layer and EUI-48 MAC addressing. Each Ethernet device on a local network must have unique address. If multiple XTDL-HT™ instruments are installed, each unit must be configured to a unique MAC address and a unique IP addresses. New address goes into effect once power to the instrument is recycled.
Analog Outputs The XTDL-HT™ supports a variety of analog output options. It can be configured to output 4-20mA, 020mA, 0-24mA, 0-5V, 0-10V, ±5V, or ±10V. The instrument is factory configured to either current output or voltage output. Output range can be changed anytime. Isolation option is available on the analog outputs for intrinsically-safe application. Standard XTDL-HT™ includes one analog output channel. With the optional I/O board, the instrument gains another channel.
Analog Outputs Setup Menu Analog Output Channel 1 Variable Lower Range Channel 2 Variable Lower Range Upper Range Type During Cal Calibrate Upper Range Type During Cal Calibrate Test Lower Limit Upper Limit Test Lower Limit Upper Limit Channel 2 menu would not appear if the instrument is configured with only one analog output channel.
Remote Controlled The analog outputs on the XTDL-HT™ can be remotely controlled via its Modbus interfaces. In addition to configuring the channels remotely, the instrument allows the Modbus master to directly control its analog outputs. This allows the DCS system to control another device via the XTDL-HT™ without setting up a Remote Terminal Unit.
Relays Relays The XTDL-HT™ can control up to four relays. Relay 2 is reserved for controlling the enclosure heater. Relays 3 & 4 require the optional I/O board.
Setup Menu Relays Channel 1 Channel 2 Channel 3 Channel 4 Time Variable Variable Variable Variable Mode Alarm State Alarm State Alarm State Alarm State Day On Error On Error On Error On Error Time On Self Cleared Self Cleared Self Cleared Self Cleared Time Off Channel 3 and 4 menu would not appear if the instrument is not configured with the extra relays.
Relays Time Controlled The relay can be automatically turned on and off based on a specific time and day. For example, it can be set to turn on automatically every weekday at 7:00AM and to turn off at 5:00PM. This is an added benefit for the customers to utilize the instrument as a small local control system.
PID Controllers A PID controller is a generic control loop feedback mechanism that attains a process output setpoint with minimal error. The XTDL-HT™ has four PID controllers. PID controller 1 is reserved for operating the enclosure heater. User is free to use the other three controllers.
PID Controllers Select the measurement input to PID controller X Go to PID > Channel X > Variable Change the process setpoint to PID controller X Go to PID > Channel X > Setpoint Go to PID > Channel X > Proportional Set the proportional gain Go to PID > Channel X > Integral Set the integral time Go to PID > Channel X > Derivative Set the derivative time Change process parameters to PID controller X Set relay X to use PID controller Y Go to Relays > Channel X > Variable Select PID Y Set analog output
Support Information Restoring default values If something is wrong with instrument operating parameters, the factory default values can be restored by selecting the menu item System > Restore Defaults. This will also restore the calibration values to the states when the instrument was shipped from factory.
Maintenance Troubleshooting Symptoms Dewpoint reading is consistently higher than expected Solutions Check all connections for leaks. Make sure that no plastic, rubber, or Tygon tubing is used. Dewpoint reading is lower than expected The laser may be mistuned. Run TruTune™ tuning manually (Measurement > Dewpoint > Tune) with a gas sample at least 5000 ppm of moisture. Tuning process takes 2-3 minutes. Screen is flashing Temperature Too Low Set the secondary reading to display sample temperature.
Symptoms Ethernet communication not working Solutions Make sure that each XTDL-HT™ instrument has a unique MAC address and IP address on your network. If your installation has more than one XTDL-HT™ instrument, give each instrument a unique MAC address. Contact your network administrator for an unused IP address for this instrument and the gateway address. Recycle power to the instrument to apply the new address settings. The instrument supports only one Modbus/TCP channel.
Maintenance 1. Remove duct cover to expose cables Maintenance Although the XTDL-HT™ laser cell is designed to withstand high level of contamination, the instrument is recommended for periodic cleaning to prevent contamination buildup on the gas sampling line. Annual inspection and cleaning are sufficient for general use, more often for dirty application. Maintenance procedure includes: 1. Check the pressure regulators and pressure gauge for correct pressure. Remove and clean if necessary. 2.
If the warranty has expired, or the damage is due to improper use or exposure of the equipment; then the repair facility will provide an estimate and wait for approval before commencing repairs. Spare List Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 38 Part number LAS.10.E.2000 LAS.98.E.0041 LAS.98.M.0001 LAS.98.S2.9869 LAS.98.S2.9870 LAS.S2.E.9774 LAS.S2.E.9875 LAS.S2.E.9901 ESS.98.M.0214 ESS.98.M.0051 CHA.98.M.0013 CAL.98.M.0010 LAS.98.M.0003 CAL.98.M.
Appendix A: Enclosure Dimensional Drawing Appendix A: Enclosure Dimensional Drawing 39
Appendix B: Modbus Registers Coil Registers Register Number Address 1 2 3 4 0 (0h) 1 (1h) 2 (2h) 3 (3h) Access Description Level Physical output User Relay 1 User Relay 2 User Relay 3 User Relay 4 Discrete Input Registers 40 Register Number Address 10001 10002 10003 10004 0 (0h) 1 (1h) 2 (2h) 3 (3h) 11101 11102 11103 11104 11105 11106 1100 (44Ch) 1101 (44Dh) 1102 (44Eh) 1103 (44Fh) 1104 (450h) 1105 (451h) Access Description Level Physical input Read-Only Digital input 1 state Read-Only Digital
Appendix B: Modbus Registers Input Registers Register Number 30001 30003 30005 30007 30009 30011 30013 30015 Address 0 (0h) 2 (2h) 4 (4h) 6 (6h) 8 (8h) 10 (Ah) 12 (Ch) 14 (Eh) Access Level Read-Only Read-Only Read-Only Read-Only Read-Only Read-Only Read-Only Read-Only Data Type Float Float Float Float Float Float Float Float Description Dewpoint Sample Temperature Sample Pressure Enclosure Temperature User Input 1 User Input 2 User Input 3 User Input 4 41
Holding Registers Register Number Address Access Level Data Type 40099 98 (62h) Admin 32-bit Measurement setting registers Critical Alarms 40101 100 (64h) User 16-bit Dewpoint engineering unit 40102 40104 40106 40108 40110 101 (65h) 103 (67h) 105 (69h) 107 (6Bh) 109 (6Dh) Read-Only Read-Only Admin Admin User Float Float Float Float 16-bit Dewpoint low limit Dewpoint high limit Dewpoint low alarm Dewpoint high alarm Sample temperature engineering unit 40111 40113 40115 40117 40119 110 (6E
Register Number 40122 40124 40126 40128 Address Data Type Float Float Float 16-bit Description Values 121 (79h) 123 (7Bh) 125 (7Dh) 127 (7Fh) Access Level Read-Only Admin Admin User Sample pressure high limit Sample pressure low alarm Sample pressure high alarm Enclosure temperature engineering unit 40129 40131 40133 40135 40142 40144 40151 40153 40160 40162 40169 40171 128 (80h) 130 (82h) 132 (84h) 134 (86h) 141 (8Dh) 143 (8Fh) 150 (96h) 152 (98h) 159 (9Fh) 161 (A1h) 168 (A8h) 170 (AAh) Read-O
Register Number 40303 40304 45 Address Data Type 16-bit Description Values 302 (12Eh) Access Level Admin Day of the week or day of the month 303 (12Fh) Admin 16-bit Relay time mode For relay time mode=monthly, Valid values are 1 - 31 For relay time mode=weekly, 0=Sunday 1=Monday 2=Tuesday 3=Wednesday 4=Thursday 5=Friday 6=Saturday 0=Daily 1=Weekday 2=Weekend 3=Weekly 4=Monthly Appendix B: Modbus Registers
Register Number 40305 40306 40307 40308 4 Address Data Type 16-bit Description Values 304 (130h) Access Level Admin Relay 1 mode 305 (131h) 306 (132h) 307 (133h) Admin Admin Admin 16-bit 16-bit 16-bit Relay 2 mode Relay 3 mode Relay 4 mode bit 0: Polarity (0=normally closed, 1=normally opened) bits 1-8: Variable ID4 bit 9: Assert when variable below low threshold (0=disabled, 1=enabled) bit 10: Assert when variable above high threshold (0=disabled, 1=enabled) bit 11: Self cleared (0=disable
Register Number 47 Address Access Level Data Type Description 40351 350 (15Eh) Admin 16-bit Digital input registers Digital input 1 mode 40352 351 (15Fh) Admin 16-bit Digital input 2 mode 40353 352 (160h) Admin 16-bit Digital input 3 mode 40354 353 (161h) Admin 16-bit Digital input 4 mode 40401 400 (190h) Read-Only 16-bit Analog output registers Analog output 1 type 40402 40403 40404 401 (191h) 402 (192h) 403 (193h) Admin Admin Admin 16-bit 16-bit 16-bit Analog output 1 lo
Register Number 40405 Address Data Type 16-bit Description Values 404 (194h) Access Level Admin Analog output 1 variable 40406 40408 40410 405 (195h) 407 (197h) 409 (199h) Admin Admin Admin Float Float 16-bit 40411 410 (19Ah) Read-Only 16-bit Analog output 1 low limit Analog output 1 high limit Analog output 1 remote controlled value Analog output 2 type 0=Off 64=Dewpoint 65=Sample temperature 66=Sample pressure 67=Enclosure pressure 68=User input 1 69=User input 2 70=User input 3 71=Use
Register Number 40415 40416 40418 40420 49 Address 414 (19Eh) 415 (19Fh) 417 (1A1h) 419 (1A3h) Access Level Admin Admin Admin Admin Data Type 16-bit Float Float 16-bit 40502 40503 40505 40508 40509 40511 40514 40515 40517 40520 40521 40523 40526 501 (1F5h) 502 (1F6h) 504 (1F8h) 507 (1FBh) 508 (1FCh) 510 (1FEh) 513 (201h) 514 (202h) 516 (204h) 519 (207h) 520 (208h) 522 (20Ah) 525 (20Dh) Admin Read-Only Read-Only Admin Read-Only Read-Only Admin Read-Only Read-Only Admin Read-Only Read-Only Admin 16-bi
Register Number Address Access Level Data Type Description 40602 40603 601 (259h) 602 (25Ah) User User 16-bit 16-bit Serial Link Registers Serial link 1 stop bits Serial link 1 baud rate 40604 603 (25Bh) User 16-bit Serial link 1 parity 40605 40607 40608 604 (25Ch) 606 (25Eh) 607 (25Fh) User User User 16-bit 16-bit 16-bit Serial link 1 message timeout Serial link 2 stop bits Serial link 2 baud rate 40609 608 (260h) User 16-bit Serial link 2 parity 40610 609 (261h) User 16-bit
Register Number 40668 40669 51 Address 667 (29Bh) 668 (29Ch) Access Level User Admin Data Type 16-bit 48-bit Description Values TCP port EUI-48 MAC Address Beeper Registers Master volume Display Registers Screen saver time Valid values are 0 - 65535 40791 790 (316h) User 16-bit 40801 800 (320h) User 16-bit 40802 40803 40804 801 (321h) 802 (322h) 803 (323h) User User User 16-bit 16-bit 16-bit 40831 820 (334h) User 16-bit Display enable time Display disable time Contrast Reading Regis
Register Number Address Access Level Data Type Description 40842 841 (349h) User 16-bit Chart Registers Chart update rate 40844 843 (34Bh) User 16-bit Chart variable 40845 40847 844 (34Ch) 846 (34Eh) User User Float Float 40901 900 (384h) Admin 16-bit Chart minimum value Chart maximum value PID Control Registers PID 1 variable 40902 40904 40906 40907 40909 40910 40912 901 (385h) 903 (387h) 905 (389h) 906 (38Ah) 908 (38Ch) 909 (38Dh) 911 (38Fh) Admin Admin Admin Admin Admin Admin
Register Number 40914 40915 40917 40918 40920 40922 40923 40925 40926 40928 40930 40931 53 Address 913 (391h) 914 (392h) 916 (394h) 917 (395h) 919 (397h) 921 (399h) 922 (39Ah) 924 (39Ch) 925 (39Dh) 927 (39Fh) 929 (3A1h) 930 (3A2h) Access Level Admin Admin Admin Admin Admin Admin Admin Admin Admin Admin Admin Admin Data Type 16-bit 16-bit 16-bit Float Float 16-bit 16-bit 16-bit Float Float 16-bit 16-bit Description Values Valid values are 0 - 65535 Valid values are 0 - 65535 See PID 1 variable Valid va
Register Number 41014 Data Type 32-bit Description Values 1013 (3F5h) Access Level Read-Only Software revision byte 0=Build revision byte 1=Custom revision byte 2=Minor revision byte 3=Major revision 41016 41021 1015 (3F7h) 1020 (3FCh) Read-Only User 32-bit 16-bit Available options Access request 41022 1021 (3FDh) Admin 10register String 41501 41502 Address 1500 (5DCh) 1501(5DDh) User User 16-bit 16-bit Password Device Specific Registers Operation delay Gas Matrix Calibration Selec
Index alarm, 20, 28 analog outputs, 13, 25, 26, 27, 32, 34, 39, 45, 46 Calibrate the digital-to-analog converter, 26 Beeper, 49 chart, 18, 50 Change the chart update rate, 18 Reset the zoom, 18 Zoom in, 18 Zoom out, 18 Coil Registers, 39 contrast, 17, 49 Current Output, 25 daylight saving, 33, 51 dew point, 20, 40, 41, 47 digital inputs, 39 Discrete Input Registers, 39 display, 16, 49 Electrical Connections, 12 Enclosure dimensional drawing, 38 Enclosure Installation, 10 enclosure temperature, 20, 40, 42, 4
Corporate Headquarters COSA Xentaur 84G Horseblock Road Yaphank, NY 11980 USA Phone: +1-631-345-3434 Texas Regional Sales and Support Office Field Service Center Center of Excellence COSA Xentaur 7125 North Loop East Houston, TX 77028 USA Phone: +1-713-947-9591
