Apex Digital Automobile Parts 16 series Manuale Utente

16 Series Mass and Volumetric Flow MetersPrecision Gas Flow MeterOperating Manual

10M Series Mass Flow Meter OperationThe M Series Mass Flow Meter provides a multitude of useful ow data in one simple, rugged device. The M Series ca

11Gas Absolute Pressure: The M Series ow meters utilize an absolute pressure sensor to measure the line pressure of the gas ow being monitored. This

12Select Menu ModePushing “Mode” once will bring up the “Select Menu” display. Push the button nearest your selection to go to the corresponding displ

13Communication Select ModeThe Communication Select mode is accessed by pressing the button below “Comm. RS-232” on the Select Menu display. The scree

14Manufacturer Data“Manufacturer Data” is accessed by pressing the “Mfg. Data” button on the Select Menu display (Figure 7). The “Mfg 1” display shows

15V Series Volumetric Flow Meter OperationThe V Series can have several display “modes” depending on how the device is ordered. All V Series meters ha

16Flashing Error Message: Our volumetric ow meters and controllers display an error message (VOV = volumetric overrange) when a measured parameter ex

17to the screen, hit the “Enter” key several times to clear any extraneous information. Type “*@=@” followed by “Enter” (or using the RS

18Gas Select – The selected gas can be changed via RS-232 input. To change the selected gas, enter the following commands: In Streaming Mode: $$#<

19Collecting Data:The RS-232 output updates to the screen many times per second. Very short-term events can be captured simply by disco

10/24/06 Rev. 0 DOC-APEXMAN16Notice: The manufacturer reserves the right to make any changes and improvements to the products described in th

20Sending a Simple Script File to HyperTerminal®It is sometimes desirable to capture data for an extended period of time. Standard streaming mode info

21Operating PrincipleAll M or V Series Gas Flow Meters are based on the accurate measurement of volumetric ow. The volumetric ow rate is determin

22Other Gases: M Series Flow Meters can easily be used to measure the ow rate of gases other than those listed as long as “non-corrosive” gas compati

23Once the corrected mass ow rate at standard conditions has been determined and the density at standard conditions is known (see the density table

24This reduces to: Pa Va / Za Ta = Ps Vs / Zs Ts , eliminating R and n.Our mass ow meters model gas ows based upon the non-ideal gas characteristics

25GasNumberShort Form Long FormViscosity*25 deg C 14.696 PSIADensity**25 deg C 14.696 PSIACompressibility 25 deg C 14.696 PSIA0 Air Air 184.918 1.1840

26GasNumberShort Form Long FormViscosity*0 deg C 14.696 PSIADensity**0 deg C 14.696 PSIACompressibility 0 deg C 14.696 PSIA0 Air Air 172.588 1.2927 0.

27Volumetric Flow Meters Under PressureV Series Volumetric Flow Meters are intended for use in low pressure applications. This is because an accurate

28TROUBLESHOOTINGDisplay does not come on or is weak.Check power and ground connections.Flow reading is approximately xed either near zero or near f

29Slower response than specied.M or V Series meters feature an RS-232 programmable Geometric Running Average (GRA). Depending on the full scale ra

Table of Contents PageInstallation 5 Plumbing5 Mounting5 Application5 Power and Signal Connections 6 RS-232 Digital Outp

30Specication Mass Meter Volumetric Meter DescriptionAccuracy ± 0.8% of Reading ±0.2% of Full ScaleAt calibration conditions after tareHigh Accuracy

31Specication Mass Meter Volumetric Meter DescriptionAccuracy ± 0.8% of Reading ±0.2% of Full ScaleAt calibration conditions after tareHigh Accuracy

32Technical Data for Moderate Flow Mass & Volumetric Flow Meters>20SLPM Full Scale up to 0-250SLPM Full ScaleSpecication Mass Meter Volumetric

33Specication Mass Meter Volumetric Meter DescriptionAccuracy ± 0.8% of Reading ±0.2% of Full ScaleAt calibration conditions after tareHigh Accuracy

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37Option: Totalizing ModeM or V Series Flow Meters and Controllers can be purchased with the Totalizing Mode option. This option adds an additional mo

38Option: 9 Volt Battery PackA Battery Pack that uses a common 9 Volt battery can be mounted to the top of your M or V Series Flow Meter. Power is pas

39Wrench Access HoleWrench Access Hole3/32 Hex WrenchTrapped Mounting ScrewTrapped Mounting Screw8 Pin Mini DIN Plug9 voltbatteryBack of MeterBattery

Table of Contents Page Collecting Data19 Data Format 19 Sending a Simple Script File to HyperTerminal® 20Operating Principle21 Gas Vis

40CCM CCH LPM LPH CFM CFHCFH 0.0021 0.00003 2.1189 0.035 60.0 1.0CFM 0.000035 0.0000005 0.035 0.00059 1.0 0.0166LPH 0.06 0.001 60.0 1.0 1699.0 28.316L

41Serial Number: ____________________________Model Number: ____________________________Calibration Certicate(Store device calibration certicate in t

5Thank you for purchasing an Apex Gas Flow Meter. Please take the time to nd and read the information contained in this manual. This will help

6Power and Signal ConnectionsPower can be supplied to your M or V Series meter through either the power jack or the 8 pin Mini-DIN connector as shown

7RS-232 Digital Output SignalIf you will be using the RS-232 output signal, it is necessary to connect the RS-232 Output Signal (Pin 5), the RS-232 In

874621DB-9 Serial Port55----------Ground--------------------------------------Ground----------83----------Transmit------------------------------------

9An optional industrial connector is also available:165432Pin Function Cable Color1Power In ( + )Red2 RS-232 Output Blue3 RS-232 Input Signal White4