page 28 of 36Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefullythe validity of this document with respect to his product. Manual-no.: 999162 // 19/01/2011Instructions for repair with directions for repair and spare parts list is available onrequest.☞ The instructions are for trained service people.NOTICEAccessoriesConversion of a VACUUBRAND valve with diode plug to a VACUUBRAND valvewith VACUU•BUS plug:Pressure transducer VSK 3000, capacitive Al 2O3 sensor 1080-0.1 mbar ...................................636657Pressure transducer VSP 3000 Pirani, 1*103 - 1*10-3 mbar 636163Vacuum gauge head MPT 100 Penning/Pirani, 1*103 - 5*10-9 mbar 683176Connection cable SUB-D - VACUU•BUS for MPT 100 636124Venting valve VBM-B / KF 16 or hose nozzle 6/10mm, 24 V= ....................................................674217Y-type adapter VACUU•BUS ........................................................................................................636656Extension cable VACUU•BUS, 2m ..............................................................................................612552Extension cable VACUU•BUS, 10m ..........................................................................................2618493Wall bushing VACUU•BUS ..........................................................................................................636153Cable RS 232C, 9-pole, Sub-D .....................................................................................................637837Digital-I/O-Module VACUU•BUS (fault indicator) .........................................................................636228Analog-I/O-Module VACUU•BUS(analog voltage output of vacuum reading) ...................................................................................636229PC-Software VACUU•CONTROL.................................................................................................692920VACUUBRAND valve with diodeplugConversion kit ”valve cable withVACUU•BUS plug”Venting valve VBM, 24 V= (666817) 612554Fault Possible cause Remedy❑ Displayed pressure valueis fluctuating.➨ Pressure transducer VSP3000 was exposed to a sig-nificant pressure change or achange of position.✔ Allow the pressure trans-ducer to stabilize.➨ Pressure measurement withVSP 3000 at pressures above50 mbar?✔ Fluctuations within the rangeof the measurement uncer-tainty. Use pressure trans-ducer VSK 3000.❑ Pressure reading incor-rect.➨ Connected pressure trans-ducer configured incor-rectly or several pressuretransducer with identicalVACUU•BUS address con-nected?✔ Reconfigure pressure trans-ducer.❑ Second pressure trans-ducer connected but notdetected by the DCP3000.➨ Second pressure transducernot or incorrectly configured?Both pressure transducersconfigured to the same ad-dress?✔ Configure second pressuretransducer.❑ Display and warningtriangle are flashing.➨ Data storage in function datalogger is full.✔ Read out data and startagain if necessary.