page 79 of 106AccessoriesUpgrade kit SYNCHRO, for two inlets at PC 510/610 NT ...........................699920Adapter G 1/4 to PTFE tubing* ...................................................................677060for inlet of PC 511/520/611/620 NTSmall flange KF DN 16 ................................................................................662593for assembly at inlet of PC 511/520/611/620 NTSeal ring for small flange KF DN 16 (662593)............................................3120565Hose nozzle for tubing I.D. 1/4” / 3/8” (6/10 mm) .........................................642470for inlet at PC 511/520/611/620 NTModification kit for small flange KF DN 16 ...............................................699939at inlet of PC 510/610 NTHose nozzle for tubing I.D. 1/4” / 3/8” (6/10 mm) .........................................636635for inlet at PC 510/610 NTElbow piece (90°) for PTFE tubing* ...........................................................637873at inlet of PC 510/610 NTBlind flange (C1) .........................................................................................677136for assembly at valve block or distribution headFlow control diaphragm (C2) .....................................................................677137for assembly at valve block or distribution headExternal pressure transducer VSK 3000, ..................................................636657capacitive, ceramic diaphragm sensor 1080-0.1 mbarCoolant valve VKW-B, 24 V= ......................................................................674220Venting valve VBM-B / KF 16, 24 V= ......................................................... 674217VACUU•BUS Y-type adapter ......................................................................636656VACUU•BUS extension cable, 6.6ft (2m) ....................................................612552VACUU•BUS wall jack .................................................................................636153Serial cable RS 232C, 9-pin, Sub-D .............................................................637837Level sensor.................................................................................................699908(control of liquid level in catchpots)Peltronic exhaust waste vapor condenser................................................699905VACUU•BUS Digital-I/O-Module .................................................................636228(e.g., fault indicator / remote module)VACUU•BUS Analog-I/O-Module ................................................................636229(for analog input and output of vacuum and motor speed)Silencer (with connection hose)....................................................................636588Attention: Dust-laden gases, deposits and condensed solvent vapor canrestrict air flow out the silencer. The resultant back pressure can lead todamage of pump bearings, diaphragms, and valves. Under those condi-tions, a silencer must not be used.