< Options > 　 CHD-500N Multiple Sample Changer 24 samples can be loaded for continuous measurement. Pressurized sampling by pump. Room temperature only. CHD-500H Multiple Sample Changer 24 samples can be loaded for continuous measurement. Pressurized sampling by pump. Room temperature - 70°C CHD-500C Multiple Sample Changer 24 samples can be loaded for continuous measurement. Pressurized sampling by pump. 5°C - room temperature CHG-260B Multiple Sample Changer 60 samples can be loaded for continuous measurement. Measuring cell is self-cleaned by sample solution. DCU-500 Auto Clean Unit Full automatic for single measurement by measure, drain, rinse by 2 kinds solvent and purge dry. IDP-100 Printer Dot printer with ink ribbon. GLP conformed printout format. AD-510 Auto Drain Unit Automate density measurement by connecting to CHG-260B Multiple Sample Changer. DUC-510 Auto Clean Unit Full automatic sampling, draining, rinsing, by 2 kinds solvent and purging dry to the measuring cell.  PPU-510 Peristaltic Pump Unit Full automatic sampling, draining, rinsing, by 2 kinds solvent and purging dry to the measuring cell.  PC Card Enlarged memory space for measurement data or downroading user's own conversion table, etc. SOFT-PCRE PC Card Read Software Save in personal computer the method or data files stored in PC card. Compatibility of Main units and Options   DA-520 DA-510 DA-500 DA-100 DA-130 DA-RA Combined System CHD-500 CHG-260B DCU-500 AD-510 DCU-510 PPU-510 PC Card SOFT-PCR    :  Connectable and can work with    :  Not connectable nor used with