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Please fi ll out the form(s) below for each instrument that has been purchased. Use this information when contacting Michell Instruments for service purposes. Analyzer Code Serial Number Invoice Date Location of Instrument Tag No Analyzer Code Serial Number Invoice Date...
XTC601 User’s Manual Safety The manufacturer has designed this equipment to be safe when operated using the procedures detailed in this manual. The user must not use this equipment for any other purpose than that stated. Do not apply values greater than the maximum value stated.
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Earth stud to plant Earth by a minimum 4mm earthing bonding. Fuse - A replacement fuse can be obtained by contacting Michell Instruments' technical support. Michell order number - XTC601-26149. This product is designed to operate, as a minimum, between a temperature range of -5 to +40°C (+23 to +104°F), in maximum 80% relative humidity for temperatures up to +31°C (+87°F) decreasing...
XTC601 User’s Manual Hazardous Area Safety Appendix F of this manual refers to the EX version and the Hazardous Area Certification of this product. This product is fitted with a marking label that contains Hazardous Area information pertinent to the suitable location and installation.
Pressurized gas should only handled by suitably trained personnel. The XTC601 measurement chamber requires pressurized gas to be connected to it. Observe pressurized gas handling regulations. Suitably trained personnel only should carry out tasks that include the use of pressurized gas mediums.
XTC601 User’s Manual Abbreviations The following abbreviations are used in this manual: Ampere alternating current bara pressure in bar (absolute) barg pressure in bar (gauge) °C degrees Celsius °F degrees Fahrenheit direct current kilogram Kilopascal pound maximum milliampere ml/min milliliters per minute millimeters μm...
Please read this manual carefully and pay special attention to the safety warnings and notifications. NOTE: Warnings and important notifications are marked with bold text. The different versions of the XTC601 available (with two or four gas ports) are shown below: GP1 or EX1 Version...
• The XTC601 is certified to ATEX, IECEX, cCSAus & TC TR Ex for use in hazardous areas. • 2 x single pole change-over relay alarms for Target Gas concentration, supplied as standard.
(Industrial Gas) O-Ring Selection The XTC601 has only one elastomeric seal in the gas path. There are 3 types of O-rings available to offer greater flexibility with material compatibility. The Viton O-ring is fitted as standard. The Ekraz O-ring is available for solvent resistance. For extremely low temperatures there is a closed cell Silicone O-ring.
XTC601 User’s Manual OPERATION OPERATION The XTC601 is not certifi ed for use with ambient oxygen levels that are enriched (i.e. over 21% O This analyzer has been manufactured within our quality procedures and is configured according to the purchase order. When it is installed and used as per the manufacturer’s guidelines, it will operate within the stated specification.
(122°F) and protect it from any condensation forming in the sensor. There is no power switch on the XTC601 Thermal Conductivity Analyzer. It is turned on automatically once a 24 V DC power source is applied. After the analyzer is powered up, the display will be illuminated.
XTC601 User’s Manual OPERATION User Interface 2.3.1 Interface Controls XTC601-EX1 Thermal Conductivity Analyzer Backlit LCD Blue LEDs ENTER Up/Down ENTER Arrow Button Button Buttons User Interface Figure 4 The diagram above illustrates the user interface, which consists of a backlit Liquid Crystal Display and 4 touch-sensitive pads that facilitate user interaction through the glass of the enclosure.
XTC601 User’s Manual OPERATION 2.3.2 ‘ESC’ Button ESC Button Figure 6 button is used to exit the current menu and to return to the previous menu. From the Main Page, pressing will access the Info Page. 2.3.3 ‘Up/Down Arrow’ Buttons...
OPERATION Menu Structure The EX1 and GP1 versions of the XTC601 have front pages that do not require a passcode but allow the user to scroll through and view Target Gas concentration, recent trend, internal parameters, minimum & maximum concentration and alarm history.
LIVE CLOCK **:**:** CLOCK PASSCODE PAGE CAL TYPE 1/2 POINT REF GAS 1 0.00-100.00 ACTUAL 1 0.00-100.00 REF GAS 2 0.00-100.00 0.00-100.00 ACTUAL 2 LIVE % TG FIELD CAL USER SETUP PAGES Menu Map - Standard XTC601 Figure 9 Michell Instruments...
XTC601 User’s Manual OPERATION XTC601 Ver: 1.03 INT. SCREEN SETTINGS PHASE 1.03 Firmware Ver EXT SENS. Back. Gas: CH4 Hours Used OUTPUT RESET 04:01:14 Last Cal Date 55.1 FIELD CAL ALARMS ModBus Rx Code USER MENU INFO PAGE Cell T Not Stable...
OPERATION Front Pages (No Passcode Required) The EX1 and GP1 versions of the XTC601 have 5 front pages that the user can display without the need for a passcode. NOTE: These are for display of information only and there is no way of adjusting any settings on these pages.
XTC601 User’s Manual OPERATION Status Message Table Message Status LED (Trigger Condition) Out of range (beyond calibration range, e.g. 0-25%) ORANGE1 ON (app s/w only) Low alarm ON ORANGE2 ON (app s/w only) High alarm ON RED FLASH Comp i/p signal error (priority2) (input <...
XTC601 User’s Manual OPERATION • Chart duration in seconds = (Chart interval * 60). • Chart data is only stored in volatile memory and therefore is not saved. Chart interval is saved and available in a Modbus register. • Chart data is not available via serial comms or in the blind unit as the Application Software is able to perform more sophisticated charting functions.
XTC601 User’s Manual OPERATION 2.5.4 Target Gas Min/Max Page MINIMUM 0.00 %CO2 D12/01 19:29:44 MAXIMUM 0.00 %CO2 D12/01 19:29:44 Target gas min/max page Figure 14 This indicates the minimum and maximum Target Gas values measured, along with date/ time of occurrence. The value is reset manually via the Reset Page in the User Menu.
XTC601 User’s Manual OPERATION Info Page 1.01 Firmware Ver Hours Used Last Cal Date 04:01:14 M ModBus Rx Code Info page Figure 16 From the Main Page it is possible to get to the Info Page by pressing the button.
XTC601 User’s Manual OPERATION User Set-Up Variables (Passcode Required) In order to change any settings on the User Menu pages, the user must enter a passcode. There is also a separate passcode for service engineers to allow factory setting changes.
XTC601 User’s Manual OPERATION 2.7.1 Settings Page FIELD CAL ON/OFF EXT COMP ON/OFF ON/OFF LIMIT 0-100% 1/128 MODBUS ID Settings page (Standard version only) Figure 19 The analyzer is microprocessor-based and, as such, has settings and features accessible to the user.
XTC601 User’s Manual OPERATION 2.7.2 Human Machine Interface (HMI) Page 0-100% CONTRAST BRIGHTNESS 0-100% TEMPR UNIT C/F/K psia, bara, kpa EXT PRESS UNIT 2-60s CHART INTVAL DATE US/Non US HMI page Figure 20 It is possible to change parameters within the HMI, as in table 6:...
XTC601 User’s Manual OPERATION 2.7.3 Reset Page RESET? MIN/MAX ALARM LOGS DELETE? DELETE? FIELD CAL Reset page Figure 21 Min/Max and Alarm Logs can be cleared from this menu. See Sections 2.5.4 and 2.5.5 respectively for more information. This menu can also be used to restore the original calibration settings. For more information see Section 3.3.
XTC601 User’s Manual OPERATION Parameter Description/Operation Options Changes which phase alarms are H2/CO2, CO2/AIR, H2/ ALARMS displayed for (HCG version only) Changes the setpoint for AL1 in the in 10% steps AL1 SETPOINT 0-100% current phase Changes between low or high...
XTC601 User’s Manual OPERATION 2.7.6 External Compensation Page (standard version only) 0.50-2.00 COMP 20% COMP 40% 0.50-2.00 COMP 60% 0.50-2.00 COMP 80% 0.50-2.00 COMP 100% 0.50-2.00 Figure 24 External Compensation page A 4-20 mA sensor may be used to compensate the % Target Gas reading for the effects of process variables such as line pressure, flow, etc.
This page sets up the type and range of the 4-20 mA external sensor signal that may be connected to the XTC601 for viewing in the Main Page. The range is adjustable between the MIN and MAX values but is not adjustable for...
XTC601 User’s Manual OPERATION Parameter Description/Operation Options The process variable that is being measured by the external sensor The options available are: NONE, DEWP, NONE - No external sensor connected EXT.SENS PV TEMPR, PRESS, DEWP- Dewpoint OTHER TEMPR - Temperature...
XTC601 User’s Manual OPERATION Parameter Description/Operation Options Hours HOURS 00-23 Minutes MINS 00-59 1-31 Month MONTH 1-12 Year YEAR 00-99 Current Time LIVE CLOCK **:**:** Table 12 Clock page parameters NOTE: This can be set via the Application Software and can accept the computer’s time as the default time and date.
XTC601 User’s Manual OPERATION 2.7.11 Status LED or Light Guide The Status LED or Light Guide options have identical functionality and take their input from the same board. Therefore, only one of them can be selected. For either option the information available is as follows: Power LED •...
Zero Point. Field Calibration: Like all process analyzers, the XTC601 will require periodic calibration. The frequency entirely depends on the location, application and accuracy requirements of the user. The typical calibration period is expected to be between 1 and 3 months. If the calibration period is in excess of 1 month Michell recommends a Zero and Span calibration.
XTC601 User’s Manual CALIBRATION 1 Point Calibration This is a single point offset overlaid on top of the factory calibration. It is designed to correct minor drift and minor changes during transit. This calibration makes the unit very accurate at the calibration point and improves accuracy throughout the range.
XTC601 User’s Manual CALIBRATION 2 Point Calibration This is a 2 point adjustment that is overlaid on top of the factory calibration. It is designed to correct minor drift and minor changes during transit. This calibration makes the unit more accurate throughout the range than the single point calibration.
XTC601 User’s Manual CALIBRATION The Adjusted reading will now be the same as that displayed on the Main Page and be equal to the upper calibration gas. The calibration process is complete. Return to sampling the process gas. NOTE: On entering the field calibration page (whether or not a change has been made), the Pressure Compensation is switched off.
Do not open the casing while powered-up in a hazardous area. Special care must be taken when the analyzer is energized. The XTC601-EX versions must only be installed by suitably qualifi ed personnel and in accordance with the instructions provided and the terms of the applicable product certifi cates.
INSTALLATION Unpacking If sold separately (not part of a sampling system), the XTC601 will be supplied in a custom box which should be retained for future use (such as service return). The box contains a small carton containing 2 lid keys and 1 hex key (for the grub screw). Any cable glands supplied will also be in the smaller carton.
Set-Up • The XTC601 is designed to be panel or wall mounted. There are 2 bolt holes and 2 lugs (1 per corner) see Figure 11 . Dimensional drawings can be found in Appendix B. Mount the analyzer before attempting to remove the lid.
The following standard options are available: Cable Gland, Conduit Entry, Blanking Plug or Light Guide. Inlet Inlet Outlet Outlet Connections Cable Entries Earthing Point XTC601 Gas Connections and Cable Entries Figure 34 Michell Instruments...
) any PTFE tape used must be unsintered. This is to prevent an explosion due to conventional PTFE tape acting as a potential fuel source. Unsintered PTFE tape is available as an accessory from Michell Instruments (PTFE- TAPE-02). 4.4.2 Sample Gas Requirements Samples must have a dew point at least 5°C less than the cell temperature (so as not...
4.5.1 Power Supply and Input/Output Signal The XTC601 requires 24 V DC power input at a maximum start-up current of 1.5 A. All versions will use a braid screened multi-core cable. Ideally, one cable for signals (PL4, PL5) and another cable for power (PL9) / relay contacts (PL1). Braid of cables must be well terminated at the cable glands.
INSTALLATION XTC601 User’s Manual 4.5.4 Serial Output The analyzer has Modbus RTU communications over RS485 protocol; please see Application Software CD for more details. • Type: Modbus RTU over RS485 • RS485: 2 wire (plus ground), half duplex • Baud Rate: 9600 •...
PIN 2 PIN 1 Exc.V Exc.V The XTC601 features 2 input channels for 4-20 mA signal from external instruments such as pressure transmitters or other devices to compensate for pressure or background gas influence. The input configured as (External Sensor) can be viewed on the Secondary...
APPENDIX A XTC601 User’s Manual Appendix A Technical Specifi cations Standard XCT601 Performance Measurement Technology Thermal Conductivity sensor Measured Gases , CH , Ar, He, N or Air Gas Requirements Non-condensing sample with particles <3μm Measurement Range Selectable from 0-5 up to 0-100% Display Resolution 0.1%...
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Ekraz: Ta = -10°C to +55°C * The standard intrinsic error and response time will be as above. Certain gas combinations and/or ranges may have different specifications. Please consult Michell Instruments for specific cases. For example, CO would be < 50 seconds for T90.
APPENDIX A XTC601 User’s Manual HCG version Performance Phase 1 - Phase 2 - Phase 3 - Phase in Air in CO in Air 80-100% or Measurement Range 0-100% 0-100% 90-100% Display Resolution 0.01% 0.1% Response Time (T90) < 20 seconds <...
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XTC601 User’s Manual APPENDIX A Mechanical Specifi cation Warm Up & Stabilization Time < 30 minutes Dimensions 234 x 234 x 172mm (9.2 x 9.2 x 6.7”) (w x d x h) Weight 9.7kg (21.4lbs) Wetted Materials 316 stainless steel, boroscillicate glass, platinum, (plus O-ring)
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APPENDIX B XTC601 User’s Manual Appendix B Dimensional Drawings Michell Instruments...
APPENDIX B XTC601 User’s Manual Appendix B Dimensional Drawings 234.0 11.5 172.0 172.0 15.0 12.0 171.0 195.0 82.5 35.0 35.0 Figure 36 2 Port Dimensional Drawings NOTE: Fixing mounts are NOT symmetrical. This is to ensure correct orientation. 97400 Issue 3.1, January 2017...
XTC601 User’s Manual APPENDIX D Appendix D Modbus Register Map (standard version) Compatible with XTP601 Firmware Version: V1:03 Addr Function Access Ranges/Resolution Type Modbus Instrument Address (ID) 1-127 Settings Register 0-65535 Display Contrast / Brightness 0-100% / 0-100%, 10% steps...
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APPENDIX D XTC601 User’s Manual Addr Function Access Ranges/Resolution Type Cal Ref3 0.00-100.00 Cal Ref4 0.00-100.00 Cal Ref5 0.00-100.00 Cal ADC1 0-8191 Cal ADC2 0-8191 Cal ADC3 0-8191 Cal ADC4 0-8191 Cal ADC5 0-8191 mAINPUT1 4mA Cal point 0-8191 mAINPUT1 20mA Cal point...
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XTC601 User’s Manual APPENDIX D Addr Function Access Ranges/Resolution Type VCOMP 0-8191 Firmware Version 0.00-200.00 Live ADC 0-8191 Live ADC mA INPUT1 0-8191 Live ADC mA INPUT2 0-8191 Live ADC CellTempr 0-8191 Spare Live ADC PCB Tempr 0-8191 % without field cal correction -199.00-199.99%...
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APPENDIX D XTC601 User’s Manual Register Type C: Display Parameters Display Brightness Display Contrast 0-100 in 10% steps 0-100 in 10% steps Register Type D: Units Bits Meaning (binary) 0, 1 0003 00=degC, 01=degF, 10=K 2, 3 000C Ext press unit, 00 = psia, 01=bara, 10=kPa...
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XTC601 User’s Manual APPENDIX D Register Type I - Status/Error Meaning Namur LED 0001 % out of range (beyond calibration range, 0002 e.g. 0-25%) 0004 Low alarm ON YELLOW 1 ON 0008 High alarm ON YELLOW 2 ON Ext Comp i/p signal error...
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APPENDIX D XTC601 User’s Manual Register Type J eg Month eg Day For reading each 8 bits represents a RTC value. For setting only the lower 8 bits are used for each RTC value. Register Type K: -32767 to +32767...
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XTC601 User’s Manual APPENDIX E Appendix E Modbus Register Map (HCG version) Michell Instruments...
APPENDIX E XTC601 User’s Manual Appendix E Modbus Register Map (HCG version) Compatible with XTP601 Firmware Version: V1:03 NOTE: Addr+1 for Wintech Modbus Activex Control Ranges/ Firmware Addr Function Type Resolution definition Modbus Instrument Address (ID) 1-127 INST_ID Settings Register...
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XTC601 User’s Manual APPENDIX E Cal Table 2 Ref 2 0.00-100.00 CAL_XTC2_REF2 Cal Table 2 Ref 3 0.00-100.00 CAL_XTC2_REF3 Cal Table 2 Ref 4 0.00-100.00 CAL_XTC2_REF4 Cal Table 2 Ref 5 0.00-100.00 CAL_XTC2_REF5 Cal Table 3 Ref 1 0.00-100.00 CAL_XTC3_REF1 Cal Table 3 Ref 2 0.00-100.00...
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APPENDIX E XTC601 User’s Manual Alarm Configuration See Reg Details ALARM_TYPES Bridge Pot Wiper Code 0-1023 BRIDGE_WIPER Gain Pot Wiper Code 0-1023 GAIN_WIPER mAINPUT1 4 mA Cal point 0-8191 MA_IN1_LOADC mAINPUT1 20 mA Cal point 0-8191 MA_IN1_HIADC mAINPUT2 4 mA Cal point...
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XTC601 User’s Manual APPENDIX E Register Type A: Unsigned Integer Unsigned integer. Range = 0 to 65535 Register Type B: Settings Meaning 0001 Field Cal On 0002 0004 0008 0010 0020 Display Limit 0-100% On 0040 0080 0100 0200 0400...
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APPENDIX E XTC601 User’s Manual Register Type D: Units Bits Meaning (binary) 0, 1 0003 00=degC, 01=degF, 10=K 2, 3 000C Ext press unit, 00=psia, 01=bara, 10=kpa 0010 Field cal type, 0=1 gas (offset), 1=2 gas 0020 Date format 0=dd/mm/yy, 1=nn/dd/yy...
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XTC601 User’s Manual APPENDIX E Register Type I - Status/Error Meaning Namur LED Displays O2HSR or O2 depending on setting 0001 (system) %Gas out of range (neyond calibration range, 0002 e.g. 0-25%) 0004 Low Alarm ON YELLOW 1 ON 0008...
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APPENDIX E XTC601 User’s Manual Register Type K: -32767 to +32767 Range = 0 to 65535 represents values Conversion: (RegValue - 32767) Register Type L: Alarm Configuration Bits Meaning 0, 1 0003 Phase 1, Alarm 1 type - 00=OFF, 01=LOW, 10=HIGH...
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APPENDIX F XTC601 User’s Manual Appendix F Hazardous Area Certifi cation Michell Instruments...
Appendix F Hazardous Area Certifi cation The XTC601-EX Thermal Conductivity Analyzer is certified compliant to the ATEX Directive (94/9/EC) and IECEx for use within Zone 1 & 2 Hazardous Areas and has been assessed so by SIRA Certification (Notified Body 0518).
XTC601 User’s Manual Maintenance and Installation The XTC601-EX must only be installed by suitably qualified personnel and in accordance with the instructions provided and the terms of the applicable product certificates. Maintenance and servicing of the product must only be carried out by suitably trained personnel or returned to an approved Michell Instruments’...
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APPENDIX G XTC601 User’s Manual Appendix G EU Declarations 97400 Issue 3.1, January 2017...
XTC601 User’s Manual Appendix H Quality, Recycling, Compliance & Warranty Information Michell Instruments is dedicated to complying to all relevant legislation and directives. Full information can be found on our website at: www.michell.com/uk/aboutus/compliance This page contains information on the following directives: •...
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XTC601 User’s Manual APPENDIX I Appendix I Analyzer Return Document & Decontamination Declaration Michell Instruments...
Has the equipment been cleaned and decontaminated? NOT NECESSARY Michell Instruments will not accept instruments that have been exposed to toxins, radio-activity or bio-hazardous Work will not be carried out on any unit that does not have a completed decontamination declaration.
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