Portable moisture (H 2 O)
Contents
1. UK Distribution by IMA Ltd Parkwell House Otley Road Guiseley West Yorkshire LS20 8BH England Tel 44 0 1943 878877 Email info ima co uk Website www ima co uk PhyMetrix PhyMetrix Portable Moisture Analyzer Brief Instructions for Model PPMa USB external Power 4 20mA IP67 connector Actual Display with the backlight turned off in the Graph mode Metal Dome snap membrane switches PhyMetrix Exhaust Pigtail Gas Inlet Sensor Knob in the IN position Sensor is in desiccant Rev 1 2 Copyright Phymetrix Inc 2008 www phymetrix com PhyMetrix Portable Moisture Analyzer Brief Instructions Performing a Measurement Background Information A In order to provide rapid moisture measurement in dry gases the analyzer is equipped with dry storage for the sensor When the sensor knob is pushed in the sensor is in dry store it should be left there while not in use When the sensor knob is pulled out it moves out about 3 4 or 19mm the sensor is in the sampling chamber While following these instructions leave the sensor in dry store until the gas is hooked up and has flowed through for a few minutes The analyzer has two gas ports the upper port closer to the display should be used for the gas outlet exhaust The lower port closer to the sensor knob should be used for the gas inlet It is assumed that the user is familiar with process analyzers but it is important to emphasize that me2. adapter Sampling system and sensor are isolated form electrical interface and supply grounds Measurement resolution of moisture sensor 1pF resulting in less than 0 01 C External power and I O USB mini B connector IP67 IP68 Mechanical Enclosure Impact resistant gt 7 Nm to EN 50014 Polyamide 12 IP65 EN 60529 ATEX hazardous area use Ex II 2 G approved PTB 02 ATEX 1076U Flammability UL 94 HB Abrasion resistant Polycarbonate display lens Dimensions L 7 36 187mm W 4 17 106mm H 1 97 50mm Weight Total 1 75 Lbs 1 8 Swagelok Inlet and Outlet fitting adapters for the SAE MS 5 16 24 ports All 316 Stainless Steel and PTFE wetted parts small surface area stainless steel sampling chamber for fast response time Integral Sensor retraction into desiccant storage chamber for fast response time when measuring low moisture content Miscellaneous NIST traceable calibrations Features Units of measure C amp F dewpoint ppmV ppmW uB H2O vapor pressure grams of H2O m and Lbs H2O 10 standard cubic feet in Natural Gas Digital amp Analog I O USB 4 20mA Data logging single point multipoint time stamping etc Virtual Analyzer PC software for training allows the user to experience the exact interface on their own PC with voice help explanations
3. gas from its source such that there is 1 LPM or more of flow through the analyzer If you need to hookup a flow meter do so at the exhaust of the analyzer as not to corrupt the reading Measurements should preferably be made at or near atmospheric pressure no back pressure but if necessary the analyzer can measure with up to 150 PSI 10 3 Bar pressure in the sample chamber The analyzer is optionally equipped with a pressure sensor and displays the measured pressure it can also compensate for the pressure and provide readings of the moisture content at a different pressure While the sensor is in dry storage allow the gas to flow through the analyzer for a few minutes in order to dry out the tubing and the analyzer sample chamber Turn ON the analyzer refer to Brief Instructions User Interface The display will show the moisture content in the dry store Pull out the sensor knob about 3 4 or 19mm The display will now show the moisture content of the gas in the sample chamber Step to the Graph Display Mode and observe the trend graph shown in the middle of the screen When the trend is stable record your measurement When the measuring is completed push the sensor knob back to dry store The sensor should not be left in mid position between the dry store and measuring position as this will cause the desiccant in the storage chamber to adsorb moisture from the ambient through the opening left in this position Always push the knob
4. to 85 C LCD operating 20 C to 70 C storage 30 C to 80 C Moisture Sensor 20 C to 60 C Pressure Sensor 20 C to 85 C Moisture Sensor Range 110 C to 20 C Accuracy 2 C temperature corrected Repeatability 0 8 C Response time 95 of step change in 3 min Sample flow gt 1 LPM Temperature Sensors 40 C to 70 C 2 C 0 to 300 PSIA 1 316L stainless steel wetted parts Ergonomics Comfortable to hold in hand soft contoured body design lightweight less than 2 Lbs Easy to read graphic LCD display with user controlled backlight brightness Snap dome tactile membrane switches with dynamically assigned legends Audible feedback on button press as well as for warnings and alarms Hook and magnet for easy temporary field securing mounting Auto scaling graph histogram on moisture measurement display for stability verification Easy to use with verbose built in context sensitive Help screens Battery Saver with user selectable Auto power down times can also be disabled Built in pressure measurement and pressure corrected moisture readings simultaneously available with the uncorrected reading for greater ease of understanding Verbose Status bar with indications warnings and audible errors User selectable locking with or without a password Built in clock calendar Electrical External AC Universal Power adapter supplied 100 240VAC 50 60Hz Rechargeable Li lon battery recharges from the USB connection or from a universal power
5. asuring low moisture content in a gas requires extreme care and absolutely leak free hookup When possible use stainless steel tubing if stainless steel is not possible then at least Teflon tubing should be used Never use copper brass silicone tygon nylon or other plastic or rubber tubing as they are permeable to water molecules and will cause erroneous measurements The analyzer gas ports are SAE MS straight thread 5 16 24 ports The analyzer is supplied with two Swagelok O Seal SAE MS to 1 8 tube adapters which allow the user to attach 1 8 tubing to the inlet and outlet ports These adapters have Viton O rings if removed care should be taken to assure that they are not damaged Do not use these adapters with Teflon tape or sealing compounds When measuring moisture content below 10 PPMv 60 C it is advisable to place the provided pigtail on the outlet port to prevent moisture from the ambient to backflow into the sample chamber Connecting the Analyzer to the sample to be measured ile co Hookup the gas to be measured to the analyzer inlet port adapter with 1 8 tubing Rotate the nut finger tight then while holding the fitting body steady with a 16 wrench tighten the nut three quarters turn with a Te wrench e g from the 12 o clock position to the 9 o clock position Make sure that the analyzer case enclosure is not stressed while loosening or tightening the fittings Always use two wrenches Adjust the
6. fully in or pull fully out There is no need for excessive force the sensor knob should move about 19mm PhyMetrix Portable Moisture Analyzer Brief Instructions User Interface 1 TURNING ON To turn ON the analyzer press the left button marked O and hold for approximately one second until the display comes on 2 TURNING OFF When the analyzer is powered ON if the left button marked 0 is held pressed for 4 seconds or more the shutdown screen will appear and when the button is released the analyzer will power OFF When running on battery power the analyzer will auto shutoff if the user buttons are not pressed for 2 minutes when the sensor is in Dry Store in desiccant or 5 minutes when the sensor is in the measurement position The settings for 2 and 5 minute auto shutoff are factory defaults that may be disabled or modified by the user When operating from the external power source USB connection to PC the analyzer will not auto shutoff 3 BUTTONS When powered ON the analyzer screen shows a legend above each of the four buttons these legends depict the current function of each button and serve as a guide to utilizing the analyzer The left most button is almost always allocated to Help and it always serves as the power OFF button if held depressed for more than 4 seconds 4 DISPLAY MODES Once powered the analyzer will enter one of three display modes whichever was last used that show the measurements perfor
7. inutes Pressure Corrected Help Mileny Disp Shep lL W JI Pressure Correction can be disabled in the Display Mode Pressure corrected by using the Step button to highlight the Calc to units and using the A and YW buttons until the upper display shows Pressure Correct disabled 5 UNITS The moisture content of the gas being measured can be displayed in a variety of units C amp F dewpoint ppmV ppmW uB H20 vapor pressure grams of H20 m and Lbs H20 10 standard cubic feet in Natural Gas Use the Step button right most to highlight the units of the measurement and use the A and Y buttons to change the units to the desired values If the instrument is unlocked then the unit changes will be permanent even if the analyzer is powered OFF If the instrument is locked then the change will last for 5 seconds so the newly selected units can be viewed but the analyzer will reset the selection to the original units The status bar will indicate Locked change is temporary and will produce beeping sounds 6 LOCKING The analyzers are shipped in the Locked mode from the factory if desired they can be unlocked via the system menu Press the Menu button then press the Step button a few times until the highlight bar is over the Un Lock menu selection and then press the Goto button If the analyzer is locked then the right most button will be labeled Unlock If the anal
8. med by the analyzer Pressing the Disp button will change the display mode a Display Mode Pressure corrected and at pressure measurements as well as the gas pressure in the sampling chamber The pressure correction selection in this display mode will be also utilized in the other two display modes If pressure correction is enabled then the status bar will provide an indication in all three display modes so that the user is made aware that the displayed measurement is pressure corrected n the example shown the pressure in the sample chamber is 6 998 Bar Sea are Step 101 5 PSI as measured by the analyzer pressure sensor The pressure dewpoint is measured to be 61 1 CT and the user has requested to know the dewpoint at ey atmospheric pressure 1 013 Bar which the analyzer calculated to be 74 3 Cdp b Display Mode Dual Dewpoint Units and Temperature of gas under 20 0 PL measurement Note the status bar indicates that the measurements are pressure temp fi 4 E dp corrected as requested these are computed what they would be at atmospheric Pressure Corrected pressure The sample temperature is 20 C Hel Menu Disp Step Konm c Display Mode Single Dewpoint Units and Graph of the measured dewpoint in the last 90 minutes with a span of 20 Fdp This is also pressure corrected The graph trend amini a f span will automatically resize to accommodate the minimum and maximum measurements in the last 90 m
9. yzer is unlocked then the right most button will be labeled Lock Use this button to change the state of the analyzer There are also OK and Cancel buttons for completing the locking unlocking function The analyzer may be left in the unlocked mode thus allowing easy permanent changes of its setup However if the analyzer is made available to many users with a mix of training on its use then it may be desirable to leave it locked 7 MENUS There are 3 menu screens providing various functions for operating the analyzer To access MENU 1 press the Menu button when in any display mode Then using the Step button move the highlight bar over the desired function Pressing the Goto button chooses the highlighted function To access MENU 2 and MENU 3 press the Goto button when the highlight bar is on the More selection Pressing the Back button returns to the previous menu or to the display mode Read the full user s manual for details on the functions provided in the menus Much of it may be learned using the PC emulation program available for training 8 BATTERY The analyzer uses a rechargeable Li lon battery If the status bar displays a Low Battery message the battery should be recharged which can be done by plugging the analyzer into any computer s USB port or using the provided wall transformer Technical Specifications Temperature Range Enclosure 40 C to 60 C Electronics 40 C
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