Alicat VC Series Volumetric Flow Controller Manual do Utilizador Página 1

Operating Manual16 SeriesMass and VolumetricPrecision Gas Flow ControllerInnovative Flow and Pressure Solutions

10The MC Series Mass Flow Controller provides a multitude of useful ow data in one simple, rugged device. The MC Series can have several screen “mode

11Gas Temperature: The MC Series ow controllers utilize a temperature sensor to measure the line temperature of the gas ow being monitored. Th

12Control Setup Mode The Control Setup Mode is accessed by pressing the center button above “Control Setup” on the Select Menu display (Fig.7) This m

13Loop—The selection of what variable to close the loop on is a feature unique to these mass ow controllers. When the mass ow contr

14Gas Select ModeThe gas select mode is accessed by pressing the button above “Gas Select” on the Select Menu display. The screen will

15Communication Select ModeThe Communication Select mode is accessed by pressing the button below “Comm. RS-232” on the Select Menu display. The scree

16Manufacturer Data Mode“Manufacturer Data” is accessed by pressing the “Mfg. Data” button on the Select Menu display (Figure 11). The “

17Select Main>LCD Contrast(10) . 10PVM DBand (0.5% FS)PRESS Avg (008) . . . 008FLOW Avg (100) . . . . 100UP DOWN MiscFigur

18VC Series Volumetric Flow Controller OperationThe VC Series can have several screen “modes” depending on how the device is ordered. Al

19Select Menu ModePushing “Mode” once will bring up the “Select Menu” display (Figure 7, page 11). Push the button nearest your select

01/21/2009 Rev.13 DOC-ALIMAN16CConformity / Supplemental Information:The product complies with the requirements of the Low Voltage

20Serial refers to a remote digital RS-232 set-point applied via a serial connection to a computer or PLC as described in the Installa

21Communication Select ModeThe Communication Select mode is accessed by pressing the button below “Comm. RS-232” on the Select Menu display. Please se

22Once you have established communication with the unit and have a stream of information lling your screen:Type *@=A followed by “Enter” (or using th

23The computer will respond by reading the current value for register 21 between 0-65535. It is good practice to write this value down so you can retu

24Gas Select – The selected gas can be changed via RS-232 input. To change the selected gas, enter the following commands: In Streaming Mode: $$#<

25Collecting Data:The RS-232 output updates to the screen many times per second. Very short-term events can be captured simply by disco

26Sending a Simple Script File to HyperTerminal®It is sometimes desirable to capture data for an extended period of time. Standard streaming mode info

27Operating PrincipleAll M and V Series Gas Flow Meters (and MC and VC Series Gas Flow Controllers) are based on the accurate measurement of volumetri

28Other 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

29Once the corrected mass ow rate at standard conditions has been determined and the density at standard conditions is known (see the densi

Table of Contents PageInstallation 5 Plumbing 5 Mounting 5 Application 5 Power and Signal Connections 6 Input Signals 7

30This reduces to: Pa Va / Za Ta = Ps Vs / Zs Ts , eliminating R and n.Alicat mass ow meters model gas ows based upon the non-ideal gas characterist

31GasNumberShort 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

32GasNumberShort 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.

33Volumetric Flow Meters and Controllers Under PressureV and VC Series Volumetric Flow Meters/Controllers are intended for use in low pressure applica

34TROUBLESHOOTINGDisplay does not come on or is weak.Check power and ground connections.Flow reading is approximately xed either near zero or near f

35RS-232 Serial Communications is not responding.Check that your meter is powered and connected properly. Be sure that the port on the computer to whi

36Specication Mass Controller Volumetric Controller DescriptionAccuracy ± (0.8% of Reading + 0.2% of Full Scale)At calibration conditions after tareH

37Specication Mass Controller Volumetric Controller DescriptionAccuracy ± (0.8% of Reading + 0.2% of Full Scale)At calibration conditions after tareH

38Technical Data for Moderate Flow Mass & Volumetric Flow Controllers0 to 50SLPM Full Scale through 0 to 100SLPM Full ScaleSpecication Mass Contr

39Specication Mass Controller Volumetric Controller DescriptionAccuracy ± (0.8% of Reading + 0.2% of Full Scale)At calibration conditions after tareH

Table of Contents PageRS-232 Output and Input 21 Conguring HyperTerminal® 21 Changing from Streaming to Polling Mode 21 Sending a Set-P

40520-290-6060 Ph. 520-290-0109 Fax 

41MC & VC Series:0 - 50SLPM0 - 100SLPMMCR & VCR Series:0 - 250SLPM 

42MCR & VCR Series:0 - 500SLPM0 - 1000SLPM0 - 1500SLPM  

43Option: Totalizing Mode16 Series Flow Meters and Controllers can be purchased with the Totalizing Mode option. This option adds an additional mod

44Alicat Portable Meters and GaugesAlicat Portable Flow Meters and Gauges use a common 9 Volt battery located in the top section of your meter. Output

45Option: Local Set-Point ModuleThe Local Set-Point Module (LSPM) is designed to provide the user with a simple “turn of the dial” method of changin

46Option: Remote Electronics for High Line or Gas TemperaturesSome applications involve operating temperatures outside the standard Alicat device spec

47Accessory: Flow Vision™ SC SoftwareFlow Vision™ SC is an intuitive software interface to help your test cycles run smoother and shorten your enginee

48ALICAT DEVICE PROCESS CONNECTIONM5 (10-32) 1/8” 1/4” 1/2” 3/4”COMPRESSION FITTING1/8” SS-200-1-0157 SS-200-1-2 SS-200-1-4 SS-200-1-81/4” SS-400-1-02

49DB15 Pin-OutNote: The above pin-out is correct for units with a DB15 pin-out. If your unit is marked DB15H or DB15K, you must use the correct pin-ou

5Thank you for purchasing an MC or VC Series Gas Flow Controller. Please take the time to nd and read the information contained in this manual. This

50DB15H Pin-OutPin Number Function6 Signal Out7 Ground11 Supply14 Set-Point10 Secondary Out2 RS-232 Receive15 RS-232 Send711 14151026DB15K Pin-OutPin

6Power and Signal ConnectionsPower can be supplied to your MC or VC Series controller through either the power jack or the 8 pin Mini-DIN connector as

7Input SignalsAnalog Input SignalApply analog input to Pin 4 as shown in Figure 1.Standard 0-5 Vdc: Unless ordered otherwise, 0-5 Vdc is the standard

8the connections, i.e. the connector on top of the meter and the physical DB-9 serial port on the back of the computer. The cable ends will be mirror

9Figure 4. Typical Multiple Device (Addressable) Wiring CongurationNote: The easiest way to connect multiple devices is with a Multi-Drop Box (see p