Apex Digital MASS FLOW METER Скачать руководство пользователя страница 11 | Manualshive

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2020.07.24

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REV. 2

• MASS FLOW METER OPERATING MANUAL

11

Connecting The Gas Flow Meter

The flow meter can measure flow generated by positive pressure and/or

suction. Connect the meter so that the flow travels in the same direction as

the flow arrow, usually from left to right from in front of the device.

Model

Max Common

Mode Pressure

Max Differential

Pressure

Standard meters

175 psia

75 psid

Low-pressure-drop meters

80 psia

10 psid

Inlet

Connection

Outlet

Connection

Flow Direction Indicator

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Содержание MASS FLOW METER

Страница 1: ...MASS FLOW METER OPERATING MANUAL ...

Страница 2: ...rder to ensure the continued certainty of your readings and extend the Limited Lifetime Warranty This device comes with a NIST traceable calibration certificate This device conforms to the European Union s Restric tion of Use of Hazardous Substances in Electrical and Electronic Equip ment RoHS Directive 2011 65 EU This device complies with the requirements of the Low Voltage Directive 2014 35 EU a...

Страница 3: ...ment View internal stream absolute pressure and temperature page 17 Backlit display with adjustable contrast is easy to read in direct sunlight In dimly lit areas press the large center button to turn on the backlight page 8 Change your STP to match any standard temperature and pressure reference page 27 Log data to your PC Talk to the flow meter serially to capture all flow data for logging and a...

Страница 4: ...ut Signal 13 Analog Signals 14 Option Color TFT Display 15 Navigation and Customization 16 Flow Meter Menu Outline 16 Main Menu 16 Collecting Live Flow Data 17 Choosing Engineering Units 18 Option Collecting Totalized Flow Data 19 Menu 20 Taring Your Flow Meter 20 Device Info 21 Diagnostic Information 21 Basic Configuration Menu 22 Choosing Engineering Units from the Basic Configuration Menu 22 Ga...

Страница 5: ...ications 30 Serial Communication 31 Establishing Communication 31 Polling Mode 32 Taring 33 Addressing All Units 33 Collecting Flow Data 33 Streaming Mode 34 Using Gas Select and COMPOSER 35 Troubleshooting 37 Maintenance 40 Engineering Units 43 Flow Units 43 Pressure Units 44 Pinout 45 M12 Connector Pinout 45 ...

Страница 6: ...IC CONFIG DEVICE UNITS Operation Flow Verification Monitor live flow readings You can monitor live readings of flow pressure and temperature by viewing the screen Readings are updated in real time See page 17 Tare your flow meter before you begin another round of measurements Ensure that no flow is passing through your meter and select TARE FLOW See page 20 for how to tare manually Optional Captur...

Страница 7: ... standard battery powered mass flow meter Your flow meter s appearance and connections may differ 0 0 0 0 13 49 22 73 Mass Flow CCM SCCM MENU PSIA C TARE FLOW SCCM A ir 0 0 0 0 13 49 22 73 Mass Flow CCM SCCM MENU PSIA C TARE FLOW SCCM A ir Process ports Mounting holes Flow body Light button Display Softkey buttons Power input Data I O Micro USB data power Power switch Enclosed battery Meters Batte...

Страница 8: ...see page 20 Highlights volumetric actual flow rate Push a second time to select volumetric flow rate engineering units Highlights mass flow rate Push a second time to select a different mass flow normal mass flow or true mass flow engineering unit TOTAL MENU Accesses the optional flow totalizer page 19 MENU enters the Menu system page 20 Toggles the backlight Status Messages Status messages are sh...

Страница 9: ...ype A or a similar cable You may charge the flow meter using any USB outlet on a computer or portable power supply but charging will be fastest approx imately 3 5 hours when connected to the supplied 2 0A power supply The red indicator LED on top of the device lights up red to indicate that the unit is charging The red LED turns off when the battery is charged Your flow meter may be used while it ...

Страница 10: ... connections If you are using a fitting that does not have a face seal use thread sealing Teflon tape to prevent leakage around the port threads but do not wrap the first two threads This will minimize the possibility of getting tape into the flow stream and clogging the laminar flow elements LFE If you are using a fitting that has a face seal there is no need to apply Teflon tape to the threads W...

Страница 11: ...e and or suction Connect the meter so that the flow travels in the same direction as the flow arrow usually from left to right from in front of the device Model Max Common Mode Pressure Max Differential Pressure Standard meters 175 psia 75 psid Low pressure drop meters 80 psia 10 psid Inlet Connection Outlet Connection Flow Direction Indicator ...

Страница 12: ...ound to Tare Orange 5 Serial RS 232TX RS 485 Output Signal send Yellow 6 0 5 Vdc or optional 1 5 Vdc or 0 10 Vdc Output Signal Green 7 Power In as described in the note above Blue 8 Ground common for power digital communi cations analog signals and alarms Purple Note The above pinout is applicable to all flow meters with the Mini DIN connector The availability of different output signals depends o...

Страница 13: ...nal Pin 3 and Ground Pin 8 to your serial port as shown below See Serial Communication on page 31 for details DB9 to 8 Pin Mini DIN Connection for RS 232 RS 485 Signals 9 Pin Serial Connection 8 Pin Mini DIN Connection Pin Function Pin Function 5 Ground 8 Ground 3 Transmit 3 Receive 2 Receive 5 Transmit DB9 connections See also the M12 connector pinout on page 56 Female Connector Male Connector 1 ...

Страница 14: ... grounding Pin 4 as shown below When the switch is closed the device will tare and resume operation once the switch has been released Option Second Analog Output Signal The default 8 pin mini DIN connector places the secondary analog output on Pin 2 for both voltage and current signals Your device s secondary analog signal may differ from its primary output signal See the calibration sheet that sh...

Страница 15: ...d in red when its value exceeds 128 of the device s specifications YELLOW Menu items that are ready to be selected appear in yellow This color replaces the symbol in selections on monochrome display Press the bottom center button to turn off the color display backlight The flow meter remains in operation while the backlight is off LCD Contrast LCD contrast is ranged from 0 to 11 on color displays ...

Страница 16: ...w Basic config page 22 Gas configuration Gas categories and gases COMPOSER mix creation and management Device units Mass flow Volumetric flow Pressure Temperature STP NTP Advanced setup page 28 Sensor setup Display as zero zero band Number of digits Flow and pressure averaging Communication setup Unit ID Baud Display setup LCD contrast Power up light Display rotation Main display page 17 ABOUT TAR...

Страница 17: ...menu for that parameter page 18 Main Display Highlights pressure in the center of the meter Push a second time to select engineering units or the pressure parameter Internal absolute pressure Internal gauge pressure optional Barometric pressure optional Highlights temperature Push a second time to select temperature engineering units TARE FLOW Tares the flow rate see page 20 Highlights volumetric ...

Страница 18: ...ineering unit Set device eng units will not appear To change them First select Show device eng units to revert the button to the current device unit for that parameter Enter the unit selection menu again to change the device engineering unit Note The totalizer s set flow variable mass flow or volumetric flow cannot be altered directly Please contact support page 2 if you wish to change your totali...

Страница 19: ... is the same as the live flow rate The totalizer can be configured at the time of order for the following behaviors Rollover default Totalizer resumes counting from 0 as soon as the maximum count has been reached Freeze Totalizer stops counting at max count until it is reset manually Error Displays OVR status message when maximum count has been reached compatible with Rollover and Freeze The time ...

Страница 20: ...here is no difference it will display PSIA When to Tare Before every new flow measurement cycle After significant changes in temperature or pressure After dropping or bumping the flow meter After installing the meter in a different orientation Menu You can enter the menu system by pressing the MENU button from the Main Display ABOUT TARES BASIC ADV CONFIG SETUP MAIN Main Menu ABOUT page 21 TARES b...

Страница 21: ...on for troubleshooting below MFG INFO displays contact information BACK returns to the top level menu page 20 MAIN exits to the Main Display page 17 Menu About Device State Diagnostic Information The DEVICE STATE screen displays live values for the internal device registers Many of these values can help an applications engineer diagnose operational issues over the phone Some register values clearl...

Страница 22: ... exits to the Main Display page 17 GAS DEVICE STP Air UNITS NTP BACK MAIN The Basic Configuration Menu Choosing Engineering Units from the Basic Configuration Menu Changing device engineering units alters both the display and the data frame First choose the parameter whose unit you want to change and then select your desired engineering unit confirming the change on the last screen If your meter h...

Страница 23: ... nitrogen gas N2 PSIA C TARE 13 59 25 33 FLOW 15 404 Mass Flow SLPM N2 16 670 15 404 TOTAL LPM SLPM MENU A meter set to measure N Menu Basic Config Gas Category and Gas Listings Controls UP DOWN moves the selection arrow up or down the listing of gas categories in the Category Menu or gases Gas Listing Menu PAGE advances the view to the next page of categories BACK returns to the Basic Configurati...

Страница 24: ...r 7 O2 12 CO2 80 N2 1 Ar 10 O2 9 5 CO2 79 5 N2 1 Ar 13 O2 7 CO2 79 N2 1 Ar Laser Gas Mixes 4 5 CO2 13 5 N2 82 He 6 CO2 14 N2 80 He 7 CO2 14 N2 79 He 9 CO2 15 N2 76 He 9 4 CO2 19 25 N2 71 35 He 9 Ne 91 He Fuel Gas Mixes Coal Gas 50 H2 35 CH4 10 CO 5 C2H4 Endothermic Gas 75 H2 25 N2 HHO 66 67 H2 33 33 O2 LPG HD 5 96 1 C3H8 1 5 C2H6 0 4 C3H6 1 9 n C4H10 LPG HD 10 85 C3H8 10 C3H6 5 n C4H10 Natural Gas...

Страница 25: ...gas category COMPOSER User Mixes You can store 20 COMPOSER gas mixes on your flow meter Note COMPOSER does not physically mix any gases for you It reconfigures your flow meter to report flow readings more accu rately based on the constituents of your defined gas mixture Menu Basic Config Gas COMPOSER User Mixes To access COMPOSER select COMPOSER User Mixes from the Gas Select category listing for ...

Страница 26: ...position Use UP DOWN to select the gas and EDIT to change its percentage You will need the mixture to total 100 when selecting SAVE 3 Save the Mix CREATE NEW creates a new mix CREATE SIMILAR duplicates the current mix MAIN exits to the Main Display without activating the new mix SELECT MIXTURE exits and activates the mix UP DOWN SELECT LETTER COMPOSER Mix name MyGas1 BACK CHANGE CANCEL CASE SET St...

Страница 27: ...Norm P Normal Pressure Ref temp units changes the temperature units used for STP and NTP calculations Ref pressure units changes the pressure units used for STP and NTP calculations Using the STP NTP menu you can independently change the temperature or pressure references for STP and NTP Your flow meter ships with a default STP of 25 C and 1 atm which affects flow units beginning with S and an NTP...

Страница 28: ...e Advanced Setup Menu Display Setup The options in the Display Setup Menu adjust the contrast of the display and enable screen rotation LCD CONTRAST sets the contrast level of the display Press reset to revert to the default contrast level POWER UP DARK or LIT toggles whether the back light of the unit will be on or off when the device powers on ROTATE DISP displays a sub menu to select a screen o...

Страница 29: ...cally had one less significant digit and newer devices can be set to match BACK returns to the top level menu page 20 AVERAGING adjusts the time constants of the geometric running averages for flow and pressure These are changed independently via PRESS AVG and FLOW AVG in the Averaging Menu which also displays the current settings Values roughly correspond to the time constant in milliseconds of t...

Страница 30: ... Unit ID the flow meter enters streaming mode when you exit the menu see page 33 NOTE Devices equipped with Modbus RTU will also have a Modbus ID that can be set separately from the unit ID Baud Rate Baud rate is the speed at which digital devices transfer information The flow meter has a default baud rate of 19200 baud bits per second If your computer or software uses a different baud rate you mu...

Страница 31: ...e COM port number as found in Windows Device Manager Drivers may be found at https www ftdichip com Drivers D2XX htm The meter will be configured with the following settings Baud 19200 default others can be used if the computer its software and the meter are set for the same rate Data bits 8 Parity none Stop bits 1 Flow control none Communication Programs Although the meter will communicate with a...

Страница 32: ...r settings so they can be recalled again later Note In what follows indicates an ASCII carriage return decimal 13 hexadecimal D Serial commands are not case sen sitive unit ID indicates to type the unit ID which defaults to A Polling Mode vs Streaming Mode In the Streaming Mode the HyperTerminal screen is updated approximately 10 60 times per second depending on the amount of data on each line It ...

Страница 33: ... with the current barometer reading and must be done with the flow meter open to atmosphere Tare absolute pressure unit ID pc Example apc aligns internal pressure to barometer Addressing All Units Using an asterisk will address all units on an RS 232 line but be aware that all units will reply back leading to a garbled response Taring all devices v Do not to use this to assign an ID as all of devi...

Страница 34: ...nu select A as identifier and exit the screen Resume streaming A The flow of information will not stop while typing and you will not be able to read what you have typed Also the unit does not accept a backspace or delete in the line so it must be typed correctly If in doubt hit enter and start again Any command that is not understood will be ignored The device can also be set to streaming mode fro...

Страница 35: ...ce period or hyphen only Mix Number Choose a number from 236 255 If a user mix with that number already exists it will be overwritten Use the number 0 to assign the next available number to your new gas COMPOSER gas numbers are assigned in descending order from 255 Gas1 Gas1 Number For each constituent gas enter its molar percentage using up to 2 decimal places and then its Gas Number page 41 You ...

Страница 36: ... Begin streaming data a Stop streaming data desired unit ID Set streaming interval aw91 number of milliseconds Query gas list info a g Choose a different gas ag Gas Number Create a COMPOSER mix agm Mix Name Mix Number Gas1 Gas1 Number Gas2 Gas2 Number Delete a COMPOSER mix agd Mix Number Query live data info a d Manufacturer info a m Firmware version a m9 Lock the front display al Unlock front dis...

Страница 37: ...ction The flow meter buttons were locked out via a serial command Press and hold all four outer buttons to unlock the interface or use the serial command Unit ID U See page 31 for more serial commands Issue I can t read the display easily Action During the day you can increase the visibility of the display by increasing the contrast MENU ADV SETUP DISP SETUP LCD CONTRAST If you are working under l...

Страница 38: ...gative Action If your flow meter is not connected to anything it may be reading a small flow that is entering its outlet Plug one end to see if the flow returns to 0 Under conditions of no flow a negative flow reading can indicate a poor tare Ensure that the flow meter has no flow passing through it and select TARE FLOW from the Main Display to give it a fresh tare Issue My flow readings jump to 0...

Страница 39: ... flow readings taken with a standard flow meter may differ from those taken with low pressure drop flow meters Issue Can I use the meter with other gases Action Yes Your flow meter is designed specifically to work with many different gases Gas Select MENU BASIC CONFIG GAS includes up to 130 preloaded gases and gas mixes or you can define your own using COMPOSER If your desired gas is not listed pa...

Страница 40: ...y to clean it as this will negate its NIST traceable calibration Please contact support for cleaning page 2 Recalibration The recommended period for recalibration is once every year A label located on the back of the device lists the most recent calibration date This date is also stored inside your flow meter and is visible by selecting MENU ABOUT DEVICE INFO When it is time for your flow meter s ...

Страница 41: ...2S Hydrogen Sulfide2 35 SO2 Sulfur Dioxide2 36 C3H6 Propylene2 80 1Buten 1 Butylene 81 cButen Cis Butene cis 2 Butene 82 iButen Isobutylene 83 tButen Trans 2 Butene2 84 COS Carbonyl Sulfide2 85 DME Dimethylether C2H6O 86 SiH4 Silane2 100 R 11 Trichlorofluoromethane CCl3F 101 R 115 Chloropentafluoroethane C2ClF5 102 R 116 Hexafluoroethane C2F6 103 R 124 Chlorotetrafluoroethane C2HClF4 104 R 125 Pen...

Страница 42: ...N2 76 He 183 HeNe 9 9 Ne 91 He 184 LG 9 4 9 4 CO2 19 25 N2 71 35 He 185 SynG 1 40 H2 29 CO 20 CO2 11 CH4 186 SynG 2 64 H2 28 CO 1 CO2 7 CH4 187 SynG 3 70 H2 4 CO 25 CO2 1 CH4 188 SynG 4 83 H2 14 CO 3 CH4 189 NatG 1 93 CH4 3 C2H6 1 C3H8 2 N2 1 CO2 190 NatG 2 95 CH4 3 C2H6 1 N2 1 CO2 191 NatG 3 95 2 CH4 2 5 C2H6 0 2 C3H8 0 1 C4H10 1 3 N2 0 7 CO2 192 CoalG 50 H2 35 CH4 10 CO 5 C2H4 193 Endo 75 H2 25 ...

Страница 43: ...3 h cubic meter per hour m3 d Sm d Nm3 d cubic meter per day in3 m Sin m cubic inch per minute CFM SCFM cubic foot per minute CFH SCFH cubic foot per hour CFD SCFD cubic foot per day kSCFM 1000 cubic feet per minute count count count setpoint count 0 64000 percent of full scale Engineering Units True Mass Flow Units Label Notes mg s milligram per second mg m milligram per minute g s gram per secon...

Страница 44: ...per square foot mTorrA mTorrG millitorr torrA torrG torr mmHgA mmHgG millimeter of mercury at 0 C inHgA inHgG inch of mercury at 0 C mmH OA mmH OG millimeter of water at 4 C NIST conventional mmH OA mmH OG millimeter of water at 60 C cmH OA cmH OG centimeter of water at 4 C NIST conventional cmH OA cmH OG centimeter of water at 60 C inH OA inH OG inch of water at 4 C NIST conventional inH OA inH O...

Страница 45: ...Analog Output 4 20 mA 5 Vdc 10 Vdc or Basic Alarm 7 Ground common for power digital communications analog signals and alarms 8 Inactive or optional 4 20 mA Primary Output Signal Note The above pin out is applicable to all the flow meters with the M12 connector The availability of different output signals depends on the options ordered Optional configurations are noted on the unit s calibration she...

Страница 46: ...onfiguration Gas categories and gases COMPOSER mix creation and management Device units Mass flow Volumetric flow Pressure Temperature STP NTP Advanced setup page 28 Sensor setup Display as zero zero band Number of digits Flow and pressure averaging Communication setup Unit ID Baud Display setup LCD contrast Power up light Display rotation Main display page 17 PSIA C TARE 13 49 26 03 FLOW 26 03 Fl...

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