使用操作说明书手册-AVG2-web

Vacuum GaugeDescriptionHow it worksAccessory HeadThe AVG2 vaouum gauge accessory head is aPower is delivered to a themmistor which isWARNING Athermiskor based digital musmeter accessory thatexposed to the vaouum being tested.MoleculesWhen comedting hoses to the AVG2 vaou.Model:AVG2enables most digital musmelers的digitaly mea多from the gas conduct heat from the thermistor.Theum gauge head,HAND TIGHTEN ONLY!DOue出y0 w pressures a0oa地d档Cagfewer gas molecules there are,the less heat isNOT USE WRENCHES OF ANY KIND.Usemoisture from ai量c0 ndisoning and refrigera Son sy多taken away.The p0er0eres的ris adjusted的only hoses with knurled ftings.tems.It measures pressures between 50 and 2000keep the temperature of the thermistor within a nar.micons of meroury.row range.The bwer the power required by theBy selectng the proper range on the DMM,youresistor,the lower the pressure.The power delivHow to usecan verfy tat everything is propery comected andered的e thermistor is measured and scaled的1.Comect A/G2 vaouum gauge head tothe pres岁re i going d的Mn from atmo的世iepe多pressure.自is very imp0ta雀te出m1aVOLTS/OHMS and COM jacks on meler andsure to 2000 microns.sensor be kept dean and free ofoi to enable unim.select mVDC.Slde onto SSck"mete,EHDL1The$er0灯has be们designed帕ithstand pres.peded fow of heat from the thermistor.Blectroric Handle or DL3 Data Logger.You canuesp的500p3400kPa0aln0d超m3ge0also connect to meters with a mVDC scale andthe AVG2 will ocour if it is exposed to fulll systemLED Indicatorsndustry st超ndad自cks by using ADLS2eHpressuresINC:When the pressure is increasing,the LED wileads orAHDL1 Adaper Handle.blink at a rate relaive的mea触of pressure2.Hand tig饿en your service h0绘om the refg-Applicationsince ase.erasonAC system service port to the AVG2.DEC:When the pressure is decreasing.the LED3.Your meter will readout pressure in microns ofMeasure the vacuum on a refrigerason systemwill bink at a ra触tea5e的ete0fesU阳mercury.Disable auto-off for long evacustionswhen evacuaing refrigerant.The digtal readoutde如rea是a的rd超超logging with the DL3.幼ows even small drops in pressure.he超gvacuum pressures vary.te technician typicalySTABLE:When the rate of change ofpressure is4.To view the pressure dropping from atmosphericzero,the LED will light.pressure to 2000 microns,set DMM to VDCwants a vaouum between 300 and 400 microns forrange.Once reading is belbw 2.0,change rangesmall systems and 700 for arge systems.ON:When the AVG2 is on,the LED will light.LO BAT:When te bateres need replacement,的iWDC的display pressure in microns.the LED wil ight.FieldpieceOPERATOR'S MANUALSpecifications:Precautions and troubleshootingCleaning the sensorServiceSensor:Precision termis的Be的e working们the system,make sure thereDrip isopropy白tng到ale的dn的e openingRetum any defective AVG2的Fid中ece for wFitting:Sand超d14 ared brass fiing (male）are no leaks.Aleak can make it impassible to pullof the sensor and pour it out,fushing any contamranty service along wth proofof purchase.ContactConversion rate:1 mVDC/1 micon of mer