Vici 235 Dynacalibrator Manuel d'utilisateur

Valco Instruments Co. Inc. 8/13 Dynacalibrator Model 235 Instruction ManualValco Instruments Co. Inc.800 · 367· 8424 sales 713 · 688· 9345 tech 713

6Unit LocationIn general, the Dynacalibrator should be as close as possible to the analyzer to be calibrated, as long as:• theambienttemperatureis

7Rear Panel ConnectionsRemove all shipping caps and shipping plugs from the rear panel bulkhead fittings. All these hardware items should be saved fo

8Span OutletThe primary outlet on the Model 235 is labeled SPAN OUT. The SPAN OUT port may be either permanently plumbed to the calibrate input port

9OVEN TEMPERATURE UPPER LIMIT A power-limiting thermostat provides a safety shutoff at this user-defined setpoint, usually 5-10 degrees above the norma

10Initial Set-UpConnections1. Plug the supplied power cord into the rear mounted power supply. Ensure that the power supply output cable is plugged

11NOTE: The Ready status light will be red while the oven is changing temperature. Once the oven temperature is within the control limits, the statu

125. Turn off the power switch and wait 15-20 minutes for the chamber to cool.6. Turn on the heater power switch and set the chamber operating tempe

13ConfigurationThe Model 235 has been designed to provide high accuracy dilution of permeated gases in both automatic and manual operation modes with m

14Tubes Screen Select the Tubes screen by touching the “Tubes” tab on the left hand side of the display. On this screen, the following parameters ar

15Basic OperationImportant Permeation Device Considerations• Ifmorethanonetubeistobeusedintheovenatthesametime,orderallthetubes wi

AttentionRadiant heat warningEntanglement warningElectrical warningSymbols used in this document

16Once the correct values are input in the correct fields, select the "Enable” button on the lower right hand portion of the Manual screen. If th

17Basic Operation4. Select the particular tube to be used as the basis for calculations by touching on the tube name. The pull down will roll up and

18Status indicator A red indicator means Not Ready, which can reflect one or more of the following: •Flowoutsideoftolerances •Temperatureoutsid

19 Basic Operationselect from the installed devices, and the graph will update with the histori-cal data of the selected device. Use your finger to sc

20Analyzer CalibrationWhen the power-up procedure is completed and the chamber temperature, flow, and permeation device have reached equilibrium, the s

21Shutdown ProcedureDynacalibrators are designed to operate continuously; however, if it is necessary to turn the unit off, use the following procedur

22Advanced Theory of OperationDynacalibrator operation is based on the principle of mixing a known mass flow of gas permeation device with a metered st

23Electrical DescriptionDynacalibrators are powered from a benchtop style transformer on the rear panel. This is a switcher-style supply that allows

24MaintenanceSince Dynacalibrators are designed for and generally used in applications that require continuous service, a planned routine maintenance

259. Rinse the fan screen and fan filter in clean water and blow dry with low- velocity air. 10. Reinstall the fan, fan filter, fan screen brackets

Table of ContentsIntroduction General Description...

26

27WarrantyThis Limited Warranty gives the Buyer specific legal rights, and a Buyer may also have other rights that vary from state to state. For a per

If this equipment is used outside manufacturers’ specification the protection provided by the equipment may be impaired.

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

2IntroductionFigure 1: Model 235 plumbing schematic

3SpecificationsIntroduction  

4Getting StartedEvery Dynacalibrator is completely calibrated, thoroughly tested and inspected, and carefully packed prior to shipment. The carrier h

5Concealed DamageConcealed damage is damage which is not apparent until after the equipment has been unpacked and examined or tested. In the event tha