Michell Instruments S8000 User Manual
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Michell Instruments S8000 User Manual

Chilled mirror hygrometer
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S8000
Chilled Mirror Hygrometer
User's Manual
97488 Issue 4
August 2018

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Summary of Contents for Michell Instruments S8000

  • Page 1 S8000 Chilled Mirror Hygrometer User’s Manual 97488 Issue 4 August 2018...
  • Page 2 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. Instrument Code Serial Number Invoice Date Location of Instrument Tag No Instrument Code Serial Number Invoice Date...
  • Page 3 © 2018 Michell Instruments This document is the property of Michell Instruments Ltd. and may not be copied or otherwise reproduced, communicated in any way to third parties, nor stored in any Data Processing System without the express written authorization of Michell Instruments Ltd.

  • Page 4: Table Of Contents

    2.5.8 RS232/485 Port (Optional) ................15 2.5.9 Connection of Gas Supplies ................17 Internal Sample Pump (Optional) ............... 19 Conversion of S8000 to Rack Mount ..............20 OPERATION ....................21 General Operational Information ................ 21 Instrument Display ................... 22 3.2.1 Main Screen ....................23 3.2.2...
  • Page 5 S8000 User’s Manual 3.4.4 Data Logging ....................36 3.4.5 Frost Assurance System Technology (FAST) ..........37 3.4.6 STANDBY Mode................... 37 APPLICATION SOFTWARE ................38 Installation ....................... 38 Establishing Communications ................38 4.2.1 USB Communication ..................39 4.2.2 RS232/485 Communication ................40 4.2.3...
  • Page 6 S8000 User’s Manual Tables Table 1 Front Panel Controls and Indicators ..............6 Table 2 Rear Panel Controls and Indicators ...............8 Table 3 Main Screen Description ................23 Table 4 Operational Status Display ................ 24 Table 5 DCC Parameters ..................28 Table 6 Logging Parameters ...................
  • Page 7 S8000 User’s Manual Figures Figure 1 S8000 ......................1 Figure 2 Operating Principle ..................2 Figure 3 S8000 Packing ....................3 Figure 4 Front Panel ....................6 Figure 5 Rear Panel ....................7 Figure 6 Power Supply Input ..................9 Figure 7 Analog Output Connectors ................10 Figure 8 Alarm Output Connectors ................12...
  • Page 8 S8000 User’s Manual Appendices Appendix A Technical Specifi cations ................58 Dimensions ................. 60 Appendix B Formatting SD cards ................. 62 Appendix C Calculations ....................64 Water Content ................64 Temperature - Dew Point ............64 °C to °F Calculation ..............64 % RH Calculation ................

  • Page 9: Safety

    Michell instruments' worldwide offi ces contact information. Calibration The recommended calibration interval for the S8000 is one year, unless otherwise specifi ed by Michell Instruments Ltd. The instrument should be returned to the manufacturer, Michell Instruments, or one of their accredited service agents for re-calibration (go to www.michell.com for contact information).

  • Page 10: Abbreviations

    S8000 User’s Manual Abbreviations The following abbreviations are used in this manual: Dynamic Contamination Correction FAST Frost Assurance System Technology MAXCOOL Maximum Sensor Cooling alternating current pressure unit (atmosphere) barg pressure unit (=100 kP or 0.987 atm) gauge bara pressure unit (absolute) °C...

  • Page 11: Introduction

    INTRODUCTION INTRODUCTION The S8000 is a high precision instrument used for the measurement of dew point in air and other gases. Relative humidity, moisture content, and other calculated parameters based on dew point, pressure and temperature of the sample gas can also be displayed.

  • Page 12: Operating Principle

    S8000 User’s Manual INTRODUCTION Operating Principle The system operates on the chilled mirror principle, whereby a gas sample is passed into the sensor housing and fl ows over the surface of the chilled mirror contained within. At a temperature dependent upon the moisture content in the gas, and the operating pressure, the moisture in the gas condenses out on the surface of the mirror.

  • Page 13: Installation

    S8000 User’s Manual INSTALLATION INSTALLATION Safety It is essential that the installation of the electrical and gas supplies to this instrument be undertaken by competent personnel. Unpacking the Instrument Figure 3 S8000 Packing Open the box (5) and unpack carefully as follows (see Figure 3) : Remove the accessories box (4).
  • Page 14 SD memory storage card Optics cleaning kit Allen Key SMM USB communications cable Pt100 temperature probe (optional) CAT5 ethernet cable (optional) Microscope (optional) If there are any shortages, please notify Michell Instruments immediately (see www.michell.com for contact information). 97488 Issue 4, August 2018...

  • Page 15: Operating Requirements

    2.3.1 Environmental Requirements The S8000 instrument should either be placed on a fi rm and level surface in a laboratory environment, or mounted into a standard 19" rack. Recommended ambient temperature +20 to +25°C (+68 to +77°F) although the instrument will operate, within specifi cation, at elevated ambient temperatures of up to +40°C (+104°F), providing the cooling...

  • Page 16: Table 1 Front Panel Controls And Indicators

    S8000 User’s Manual INSTALLATION Front Panel Front Panel Figure 4 Item Name Description Used to cover the microscope port when not in use. Also Microscope to be used as a key to remove optics window (see Section Blanking Plug 5.3).

  • Page 17: Figure 5 Rear Panel

    S8000 User’s Manual INSTALLATION Rear Panel 8 77 Rear Panel Figure 5 Item Name Description Usually slightly above atmospheric pressure in order to Gas Input Port maintain fl ow rate over the mirror, but can be up to a maximum of 20 barg depending upon application.

  • Page 18: Rear Panel Connections (All Versions)

    S8000 User’s Manual INSTALLATION Used for communication with the instrument over a network connection. RJ45 Ethernet See Section 4.2.3 for details on how to confi gure the Socket network settings. (Optional) See Section 4 for information on using and installing the application software.

  • Page 19: Power Supply Input

    S8000 User’s Manual INSTALLATION 2.5.1 Power Supply Input The AC power supply is a push fi t into the power input socket as shown in Figure 7 . The method of connection is as follows: Ensure that both ends of the power cable are potential free i.e. not connected to an AC power supply.

  • Page 20: Analog Output Connections

    S8000 User’s Manual INSTALLATION 2.5.2 Analog Output Connections The three analog outputs can be confi gured to represent any of the directly measured or calculated output parameters. They are provided as 2-wire signals from a 6-way connector located on the rear panel of the instrument .

  • Page 21: Alarm Output Connections

    S8000 User’s Manual INSTALLATION For each output: Remove the terminal block fi tted into the analog output socket. Strip back the wire for the common (black) connection to the output, COM1 exposing approximately 6mm (0.25"). Insert the wire into the terminal way and screw into the block.

  • Page 22: Figure 8 Alarm Output Connectors

    S8000 User’s Manual INSTALLATION WARNING: Alarm leads MUST be potential free when wiring to connector block. DANGER Electric Shock Risk Figure 8 Alarm Output Connectors For each output: Strip back the wire for the common (black) connection to the FAULT...

  • Page 23: Remote Prt Probe (Optional)

    S8000 User’s Manual INSTALLATION 2.5.4 Remote PRT Probe (Optional) Rotate the body of the PRT probe connector until it locates in the socket labelled REMOTE TEMPERATURE (see Figure 10). Push the connector into the socket until it locks. Do not attempt to force it into the socket.

  • Page 24: 4-Wire Prt Output (Optional)

    S8000 User’s Manual INSTALLATION 2.5.5 4-Wire PRT Output (Optional) These four terminal binding posts (Item 1, Figure 11), are provided for calibration and external monitoring purposes. Two pairs of lines are provided, two drive and two sense lines. One black (low) and one red (high) for the drive lines, and one black (low) and one red (high) for the sense lines.

  • Page 25: Ethernet Port (Optional)

    S8000 User’s Manual INSTALLATION 2.5.7 Ethernet Port (Optional) The instrument features an optional RJ45 port for communication with the Application Software. Check the orientation of the connector and gently push it into the socket labelled Ethernet Port (Optional) Figure 12 To remove the connector, depress the small locking tab on the top and pull it out of the socket by holding the connector body.
  • Page 26 S8000 User’s Manual INSTALLATION RS232 RS232 Pinout (9-pin female) Pin 1 Pin 2 Pin 1 Pin 5 Pin 3 Pin 4 Pin 5 Pin 6 Pin 6 Pin 9 Pin 7 Pin 8 Pin 9 RS485 Pin 1 RS485 Pinout (9-pin female)

  • Page 27: Connection Of Gas Supplies

    S8000 User’s Manual INSTALLATION 2.5.9 Connection of Gas Supplies POSSIBLE INJURY! The tubing, valves and other apparatus attached to this instrument must be adequate for the maximum pressure which will be applied, otherwise physical injury to the operator or bystander is possible.
  • Page 28 S8000 User’s Manual INSTALLATION The sample inlet and outlet connections are either 6mm or ¼" Swagelok tube couplings ® (optional). The gas input connection must be made with 6mm or ¼" stainless steel tubing (the appropriate size for the connectors fi tted). The gas output connection for most applications can just be exhausted to atmosphere via 300mm (11.8") of PTFE...

  • Page 29: Internal Sample Pump (Optional)

    S8000 User’s Manual INSTALLATION Internal Sample Pump (Optional) The internal sample pump can be used to allow measurement of static samples at atmospheric pressure. The pump can be be routed in to the sample loop or bypassed, depending on whether it is connected via the external tube link.

  • Page 30: Conversion Of S8000 To Rack Mount

    S8000 User’s Manual INSTALLATION Conversion of S8000 to Rack Mount Figure 17 illustrates the method for fi tting a rack mount instrument into a standard 19” rack. To fi t the unit proceed as follows: Rack Fixing Method Figure 16 Turn the unit on its left hand end and remove the four screws and washers from the side panel.

  • Page 31: Operation

    OPERATION OPERATION As supplied, the S8000 is ready for operation and a set of default parameters has been installed. This section describes both the general operation of the instrument and the method of setting it up and changing the default parameters (see Appendix E) - should this become necessary.

  • Page 32: Instrument Display

    S8000 User’s Manual OPERATION Instrument Display The S8000 features a 5.7” color touch screen display. When the instrument is switched on an Initialising overlay will be shown while the menu system loads. Initialising Overlay Screen Figure 17 After the menu system has loaded, the Main Screen will show.

  • Page 33: Main Screen

    S8000 User’s Manual OPERATION 3.2.1 Main Screen READOUTS STABILITY GRAPH READOUTS READOUTS OPERATIONAL STATUS DISPLAY FLOW RATE MAXCOOL / STANDBY / SET UP DCC OFF / MEASURE OPERATE DCC ON Main Screen Layout Figure 19 Name Description Readouts These readouts display measured instrument parameters.

  • Page 34: Customizable Readouts

    S8000 User’s Manual OPERATION 3.2.2 Customizable Readouts The three readouts on the Main Screen can be confi gured by the user to show any of the following parameters: • Dew point • Temperature • Temperature – Dew point • Relative Humidity, %RH •...

  • Page 35: Setup Menu Screen

    S8000 User’s Manual OPERATION 3.2.4 Setup Menu Screen The Setup Menu is used to adjust the operational parameters of the instrument, change the display setup and start or stop the data logging feature. Initially, when the Setup Menu Screen is opened a set of labelled icons is displayed.

  • Page 36: Figure 21 Virtual Keyboard

    S8000 User’s Manual OPERATION Numeric Input When entering a numeric value a virtual keypad will be displayed. Figure 21 Virtual Keyboard The allowable range will initially be shown at the top of the keypad, e.g. 0  50 Some parameters can be disabled by entering a value of 0, this will be indicated by 0[off] ...

  • Page 37: Menu Structure

    S8000 User’s Manual OPERATION 3.2.5 Menu Structure MAIN SCREEN OUTPUT ALARM CLOCK ABOUT HELP LOGGING DISPLAY Display Hold Status Output Select Parameter Resolution Date Network Settings Output Type IP Address Period Filename Setpoint Primary Unit Time Reset Optics Interval Parameter...

  • Page 38: Dcc

    S8000 User’s Manual OPERATION 3.2.6 DCC Screen Figure 23 Parameter Description HOLD Holds the values on the display while the instrument is in mode. Display Hold Available Input: On/Off Duration of the DCC cycle. Period Available Input: 1 to 59 minutes Reset Optics Triggers a reset of the optical signal level on the next DCC cycle.

  • Page 39: Logging

    S8000 User’s Manual OPERATION 3.2.7 LOGGING Figure 24 Logging Screen Parameter Description Status Displays the status of the current logging operation. Filename Displays the fi lename of the current log fi le. Time in seconds between recording readings in the log fi le.

  • Page 40: Table 7 Sd Card Status Indicators

    Do not remove the SD Card or power off the instrument Logging in progress 110001 010001 Do not remove the SD Card or power off the instrument 001011 SD Card error Hardware error Contact Michell Instruments' service department Table 7 SD Card Status Indicators 97488 Issue 4, August 2018...

  • Page 41: Outputs

    S8000 User’s Manual OPERATION 3.2.8 OUTPUTS % RH Outputs Screen Figure 25 Parameter Description Selects the output to be adjusted. Output Select Available Input: Output 1, 2 or 3 Selects the type of analog output signal to use. Output Type Available Input: 4-20 mA/0-20 mA/0-1 V The parameter used to control the selected output.

  • Page 42: 3.2.10 Display

    S8000 User’s Manual OPERATION 3.2.10 DISPLAY Display Screen Figure 27 Parameter Description Number of decimal places used when displaying parameters on the Resolution Main Screen. Available Input: 1, 2, 3 Temperature unit to be used on the display and menus.

  • Page 43: 3.2.11 Clock

    Current date. Time Current time. Table 11 Clock Parameters 3.2.12 ABOUT (Network Settings) When using an S8000 that is fi tted with an Ethernet module this page is accessible via the About Screen. Figure 29 Network Settings Screen Parameter Description IP Address The IP address of the instrument.

  • Page 44: Operational Functions

    S8000 User’s Manual OPERATION Operational Functions 3.3.1 Operating Cycle The default parameters set up for the instrument defi ne an operating cycle, see Figure Typical Operating Cycle Figure 30 At initial switch-on, the instrument enters a DCC cycle for 2 minutes. This heats the mirror to a default temperature of +20°C (+36°F) above the previously measured value...

  • Page 45: Operating Guide

    S8000 User’s Manual OPERATION Operating Guide 3.4.1 DCC - Dynamic Contamination Control Dynamic Contamination Control ( ) is a system designed to compensate for the loss of measurement accuracy which results from mirror surface contamination. During the process the mirror is heated to a default temperature of 20°C above the dew point to remove the condensation which has formed during measurement.

  • Page 46: Maxcool Function

    3.4.3 Pressure Compensation As an option, the S8000 instrument can be fi tted with an internal pressure sensor that measures the sample gas pressure. The pressure measured by this sensor is then used internally as the basis for compensation for all of the pressure related parameters,...

  • Page 47: Frost Assurance System Technology (Fast)

    FAST When turned on and is enabled, the S8000 makes an initial dew point measurement. If the initial measurement is between 0°C and -40°C then the mirror is driven down to below -40°C to ensure the formation of ice on the mirror surface. The instrument then continues operation as normal –...

  • Page 48: Application Software

    When launching the application software, the Communications Setup screen will be displayed. The following sections explain how to establish communication with the S8000, depending on whether it is fi tted with a USB, RS232/485 or Ethernet module. Figure 31 Communications Setup Screen...

  • Page 49: Usb Communication

    APPLICATION SOFTWARE 4.2.1 USB Communication Connect the S8000 to the PC using the supplied USB cable. Windows will recognize the instrument and automatically install the relevant drivers. If the driver installation has been successful then the Windows Device Manager will list the following driver (see...

  • Page 50: Rs232/485 Communication

    4.2.3 Ethernet Communication Confi gure the network settings of the instrument. Refer to Section 3.2.12. Connect the S8000 to the network using the supplied Ethernet cable. Launch the application software and choose the Network Connection option. TCP Settings Click the button to enter the IP address of the instrument.

  • Page 51: Data Acquisition Or Edit Variables Mode

    S8000 User’s Manual APPLICATION SOFTWARE Data Acquisition or Edit Variables Mode Once communication has been established, the Options Screen is displayed. Figure 34 Options Screen Michell Instruments...

  • Page 52: Data Acquisition

    S8000 User’s Manual APPLICATION SOFTWARE 4.3.1 Data Acquisition This mode of operation allows all measured instrument parameters to be graphed and logged in real time. Figure 35 Data Acquisition Screen Data Acquisition Control Toolbar Name Description Begin data acquisition and logging A fi...

  • Page 53: Table 14 Graph Control Description

    S8000 User’s Manual APPLICATION SOFTWARE Instrument readings and status This area displays all measured instrument parameters and shows the status of the Fault, Process and Sensor Cooler Alarm. Graph Controls Name Description Plot Automatically advances the graph as new data is acquired...

  • Page 54: Variable Edit

    S8000 User’s Manual APPLICATION SOFTWARE 4.3.2 Variable Edit The variable edit mode allows the instrument confi guration to be changed through the application software. On launch, it will automatically read and display the current values of each of the instrument variables.

  • Page 55: Figure 36 Variables Editor Screen

    S8000 User’s Manual APPLICATION SOFTWARE Figure 36 Variables Editor Screen Michell Instruments...

  • Page 56: Maintenance

    S8000 User’s Manual MAINTENANCE MAINTENANCE There are no user-serviceable parts on the S8000, other than the removal and replacement of the AC power supply fuse and cleaning the mirror in the sensor. Safety This equipment operates from power supply voltages that can be lethal and at pressures (depending upon application) that could cause injury.

  • Page 57: Fuse Replacement

    S8000 User’s Manual MAINTENANCE Fuse Replacement If the instrument fails to operate after it has been connected to an AC power supply (85 to 264 V AC, 47/63 Hz) and switched on, proceed as follows: If the power supply cable is fi tted with a fused plug, switch off the power supply, remove the plug, check and, if necessary, replace the fuse.

  • Page 58: Sensor Mirror Cleaning

    S8000 User’s Manual MAINTENANCE Sensor Mirror Cleaning WARNING Before removing the safety strap or opening the sensor housing it is essential to vent the system to atmospheric pressure, otherwise severe injury or damage to the equipment could result. Throughout the life of the instrument, periodic cleaning of the mirror surface and optics window may be required.

  • Page 59: Releasing Optics Window

    S8000 User’s Manual MAINTENANCE Clean the mirror surface and optics window with a cotton bud/Q- Tip soaked in distilled water. If the sensor has been exposed to oil based contamination then use one of the following solvents: methanol, ethanol, or isopropyl alcohol. To avoid damage to the mirror surface do not press too fi...

  • Page 60: Fitting The Microscope (Optional)

    S8000 User’s Manual MAINTENANCE 5.3.2 Fitting the Microscope (Optional) To observe the frost formation on the chilled mirror surface, an optional microscope (Part No. S8K-RS-MCI) can be provided. The microscope allows direct viewing of the mirror surface, providing assurance that ice crystals have formed and that supercooled water is not present at temperatures below 0°C.

  • Page 61: Good Measurement Practice

    GOOD MEASUREMENT PRACTICE GOOD MEASUREMENT PRACTICE The S8000 is designed to operate in a fl owing gas stream. The sampling chamber, which enables a small sample of gas to be passed over a Peltier chilled, plated copper mirror, is designed to operate at pressures up to 1 barg (14.5 psig) (low pressure version), and up to 20 barg (290 psig) max (high pressure version).

  • Page 62: Sampling Hints

    S8000 User’s Manual GOOD MEASUREMENT PRACTICE Sampling Hints Measurement of moisture content is a complex subject, but does not need to be diffi cult. This section aims to explain the common mistakes made in measurement situations, the causes of the problem, and how to avoid them. Mistakes and bad practices can cause the measurement to vary from the expectation;...
  • Page 63 S8000 User’s Manual GOOD MEASUREMENT PRACTICE Sample Tubing Length The sample point should always be as close to the critical measurement point as possible, in order to obtain a truly representative measurement. The length of the sample line to the sensor or instrument should be as short as possible. Interconnection points and valves trap moisture, so using the simplest sampling arrangement possible will reduce the time it takes for the sample system to dry out when purged with dry gas.
  • Page 64 Before disconnecting the S8000 from the gas line it is essential to vent the system to atmospheric pressure, otherwise severe injury could result.

  • Page 65: Calibration

    Michell Instruments for further information (for contact information go to www.michell. com). The under-mentioned item has been calibrated at the following points in the Michell Instruments’ Humidity Calibration Laboratory against Test Equipment traceable to the NATIONAL PHYSICAL LABORATORY, Middlesex, United Kingdom and to the NATIONAL INSTITUTE OF STANDARDS &...

  • Page 66: Preparation For Shipping

    S8000 User’s Manual PREPARATION FOR SHIPPING PREPARATION FOR SHIPPING For shipping purposes, the instrument should be packed into its original carton, the latter providing the recommended degree of protection during transit. To prepare the instrument for shipping, proceed as follows.
  • Page 67 S8000 User’s Manual APPENDIX A Appendix A Technical Specifi cations Michell Instruments...

  • Page 68: Appendix A Technical Specifi Cations

    S8000 User’s Manual APPENDIX A Appendix A Technical Specifi cations Dew-Point Sensor Performance Measurement Technology Chilled Mirror Accuracy ±0.1 °C (±0.18 °F) Reproducibility ±0.05°C (±0.09°F) -60 to +40°Cdp (-76 to +104 °Fdp) Measurement Range Operating Temperature -20 to +40°C (-4 to +104 °F) Range Low Pressure Version: 0 to 1 barg (0 to 14.5 psig)
  • Page 69 S8000 User’s Manual APPENDIX A Monitor Resolution User-selectable to 0.001 dependant on parameter °C and °F for dew point and temperature Measurement Units %RH, g/m , g/kg, ppm , ppm ), for calculated humidities Analog: 3 channels, user-selectable 4-20 mA, 0-20 mA or 0-1 V...

  • Page 70: Dimensions

    S8000 User’s Manual APPENDIX A Dimensions 178.5 mm 46.0 mm 7.028 ins 1.811 ins 440.0 mm 17.323 ins 342.9 mm 13.498 ins 34 mm 1.337 ins 97488 Issue 4, August 2018...
  • Page 71 S8000 User’s Manual APPENDIX B Appendix B Formatting SD Cards Michell Instruments...

  • Page 72: Figure 43 Select Format

    Default allocation size. Volume label If required, in the box (4), Figure 43 Select Format enter a volume label e.g. S8000. The SD card requires a full format so leave Quick format box (5) unchecked. Start Click the button (6).

  • Page 73: Appendix C Calculations

    S8000 User’s Manual APPENDIX C Appendix C Calculations Michell Instruments...

  • Page 74: Water Content

    S8000 User’s Manual APPENDIX C Appendix C Calculations Water Content The accuracy of the humidity calculations was determined by comparing the displayed value to corresponding values calculated from the formulae below, using a PRT simulator to set a dew-point value and the Michell Humidity Calculator to calculate the water vapor pressure (wvp).

  • Page 75: Conversion Of Bara To Psia And Kpa

    S8000 User’s Manual APPENDIX C Conversion of bara to psia and kPa Use a calibrated 4-20 mA source (Q0356) to simulate a range of applied pressures covering the instruments' full pressure measurement span of 0 to 25 bara (0 to 377 psia) (1.56 bar/mA).
  • Page 76 S8000 User’s Manual APPENDIX D Appendix D Modbus 97488 Issue 4, August 2018...

  • Page 77: Figure 46 Modbus Connection

    The tables in this Appendix list these registers, as they apply to the S8000 instrument, and specify the number and data formats that apply to each register.

  • Page 78: Modbus Rtu Connections And Protocol

    Value Register Map All the data values relating to the S8000 are stored in holding registers. Each of these registers is two bytes (16-bits wide). Some of these registers contain instrument specifi c values e.g. its own unique system address, emitter drive values etc. and others are used to hold specifi...

  • Page 79: Table 16 Modbus Holding Register Map

    S8000 User’s Manual APPENDIX D Default Address Address Read/ Register Register Function Value Write Confi g. Map Defi nition 0000* Instrument Address 0001H INSTID 0001 Dew point Value – Hi Word HUMIDITY_HI 0002 Dew point Value – Lo Word HUMIDITY_LO 0003 Ambient Temperature –...

  • Page 80: Table 17 Register Confi Guration A

    S8000 User’s Manual APPENDIX D Table 17 Register Confi guration A Table 18 Register Confi guration B1 Table 19 Register Confi guration B2 97488 Issue 4, August 2018...

  • Page 81: Table 20 Register Confi Guration D Status Word

    S8000 User’s Manual APPENDIX D Table 20 Register Confi guration D Status Word Table 21 Register Confi guration E Units Table 22 Register Confi guration F Display Setting A Michell Instruments...

  • Page 82: Table 23 Register Confi Guration F Display Setting B

    S8000 User’s Manual APPENDIX D Table 23 Register Confi guration F Display Setting B Table 24 Register Confi guration H Table 25 Register Confi guration J Table 26 Register Confi guration K 97488 Issue 4, August 2018...

  • Page 83: Table 27 Register Confi Guration L

    S8000 User’s Manual APPENDIX D Table 27 Register Confi guration L Table 28 Register Confi guration M The humidity values for sensors 1 & 2 are represented in IEEE-754 single precision fl oating point format, in order to cater for the wide range in the value of ppm .

  • Page 84: Table 30 Register Confi Guration P

    S8000 User’s Manual APPENDIX D Table 30 Register Confi guration P 97488 Issue 4, August 2018...
  • Page 85 APPENDIX E S8000 User’s Manual Appendix E Default Values Michell Instruments...

  • Page 86: Appendix E Default Values

    S8000 User’s Manual APPENDIX E Appendix E Default Values The default values for the HMI Settings are as follows: Main Page Dew point Middle Bottom Flow Fixed Outputs 4-20 mA, dew point, -60 to +20 °C 4-20 mA, ppm , 0 to 3000 4-20 mA, fl...
  • Page 87 APPENDIX E S8000 User’s Manual Appendix F Quality, Recycling & Warranty Information Michell Instruments...

  • Page 88: Appendix F Quality, Recycling & Warranty Information

    S8000 User’s Manual APPENDIX E Appendix F Quality, Recycling & 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/compliance This page contains information on the following directives: •...
  • Page 89 APPENDIX G S8000 User’s Manual Appendix G Return Document & Decontamination Declaration Michell Instruments...

  • Page 90: Appendix G Return Document & Decontamination Declaration

    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.
  • Page 92 http://www.michell.com...

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