Vici 340 Dynacalibrator Manual do Utilizador

Valco Instruments Co. Inc. Rev 9/13 Dynacalibrator Model 340 Instruction ManualValco Instruments Co. Inc.800 · 367· 8424 sales 713 · 688· 9345 tech

6Getting StartedEvery Dynacalibrator is completely calibrated, thoroughly tested and inspected, and carefully packed prior to shipment. The carrier ha

7Concealed DamageConcealed damage is damage which is not apparent until after the equipment has been unpacked and examined or tested. In the event tha

8Unit LocationIn general, the Dynacalibrator should be as close as possible to the analyzer to be calibrated, as long as:• theambienttemperatureis

9Rear Panel ConnectionsRemove all shipping caps and shipping plugs from the rear panel bulkhead fittings. All these hardware items should be saved fo

10On all units with an internal pump, the supply inlet port is internally connected directly to the suction side of the pump. Since the output of the

11Bypass LoopsOnly those Dynacalibrators with internal pumps are equipped with fittings for bypass loops in either or both the carrier and dilution str

12Front Panel Controls and IndicatorsThe section entitled “Advanced Theory of Operation” beginning on page 27 includes more detailed information on t

13 

14CalculationsConcentration of the permeant compound in the span outlet stream is inversely proportional to the carrier flow rate through the chamber.

15Initial Power-UpBasic Connections1. Plug the power cable from the main power connector on the rear panel of the calibrator to a 110 VAC power source

AttentionRadiant heat warningEntanglement warningElectrical warningSymbols used in this document

16The front panel displays the current chamber temperature and the control status of the instrument, indicated by the PNL and TMP lights. (Refer to F

17Setting the Chamber Temperature via Serial Port (RS-232)Refer to the section titled “Serial Port Communications” on page 20.Installing the Permeatio

18Verifying Operation1. Connect a piece of tubing of the proper length to the span outlet fitting on the rear panel, leaving the analyzer end of the tu

199. Check that there is gas flow out of the overflow vent and the stream outlet, but not out of the chamber vent.10. If remote control will be used,

20Serial Port CommunicationThe Dynacalibrator Model 340 can be monitored and controlled remotely by means of a serial port connection and a terminal e

212. Click “Cancel”. Since no modem is involved, this information is not necessary. The following screen will appear:3. Click “OK”, which reveals

226. Select the appropriate COM port and click “OK” to bring up this screen:7. Set the port parameters as indicated above, and click “OK”.8. Now we

239. On the dyna340 Properties screen (above), click “Settings” to bring up the screen below. Click “Settings”Click “ASCII Setup...”Serial Port Commu

2410. Click “ASCII Setup” and set the parameters as indicated below. Click “OK”.11. When the screen returns to Dyna340 HyperTerminal (page 22, botto

25Analyzer CalibrationAfter the power-up procedure has been completed and the chamber tempera-ture and permeation device have reached equilibrium, the

Table of ContentsIntroductionGeneral Description...

26Shutdown ProcedureDynacalibrators are designed to operate continuously; however, if it is necessary to turn the unit off, use the following procedur

27Advanced Theory of OperationDynacalibrator operation is based on the principle of mixing a known mass flow of gas derived from a permeation device wi

28this number to indicate the carrier flow (and the orifice used). Refer to page 4 for information about the available flow capacity ranges.Many of the

29Configuration 2Pump P1 (Figure 7) draws gas in through the supply inlet on the back panel and delivers it to accumulator AC1. The accumulator smoothe

30Advanced Theory of Operation©§

31Configuration 5in this configuration (Figure 10), pump P1 draws gas in through the supply inlet on the back panel and delivers it to accumulator AC1.

32 Electrical DescriptionThe basic wiring of the Model 340 is shown schematically in Figure 11. Dynacali-brators are powered from a benchtop style tr

33MaintenanceSince the Dynacalibrators are designed for and generally used in applications that require continuous service, a planned routine maintena

349. Inspect all assembly mountings for loose hardware, and tighten as necessary.10. Rinse the fan screen and fan filter in clean water and blow dry

35Chamber Temperature CalibrationPrior to shipment, the permeation chamber digital temperature control is calibrated against the temperature of the g

Table of Contents (continued) Advanced Theory of Operation ...

36TroubleshootingIf you intend to perform detailed troubleshooting on your Dynacalibrator, please first read the section entitled “Advanced Theory of O

37Troubleshooting4. Isolate the leak by using a small quantity of leak detection fluid on each possible leak point in the suspect loop. Watch carefu

38Troubleshooting7. Once a section of the loop has been deter mined to be leak free, go to the next fitting downstream of the point of the previous c

39Model Number Breakdown

40WarrantyThis Limited Warranty gives the Buyer specific legal rights, and a Buyer may also have other rights that vary from state to state. For a peri

1IntroductionGeneral DescriptionVICI Metronics Dynacalibrators® use Dynacal® permeation devices to generate the precise gas concentrations necessary f

2IntroductionAs indicated in Figure 1, the carrier stream passes through scrubber #1 and 30-micron line filter LF1 to the differential pres sure regul

3IntroductionThe flow rate through the flowmeter needle valve is a function of the differential pressure across it and the setting of the dilution flow c

4IntroductionOptionsThe following paragraphs provide general information on each, with more detailed information found in “Advanced Theory of Operati

5Specifications