HPLC Agilent Technologies G7157A

Agilent Technologies G7157A 1260 Infinity II Prep Autosampler, a standalone preparative injection module for InfinityLab LC and purification systems. The field user identified it as an HPLC autoprep sampler. It is a flow-through preparative vialsampler designed for automated, unattended sample handling in routine purification workflows, and it operates as part of an HPLC stack - no pump, column compartment or detector is included with this unit. Per Agilent's published data for the G7157A, the module handles preparative injection volumes from roughly 0.1 uL up to 5 mL, is rated to 400 bar and flow rates up to 200 mL/min, and accepts up to 132 sample vials (2 mL or 6 mL) for continuous injection sequences. The nameplate on the rear of the unit reads Product No. G7157A, Serial No. DEAEL00625, 100-240 V, 50/60 Hz, 350 VA, made in Germany with a date code of 2021-04-06, and carries CE, CSA/US and other agency marks. Rear connections include LAN, USB, CONFIG, E-REMOTE and two CAN ports for integration into an Agilent LC stack. Photo 2 shows the sampler with its doors open: the injection needle and metering assembly, sample tray area, the Agilent multi-position injection valve with a coiled capillary, and a G7157-60000 high-flow assembly. A second nameplate on the lower section (Product No. G7167-60101, refrigerant R600a) indicates a sample thermostat/cooling module is mounted beneath the sampler. The instrument is labeled "HPLC 26" with a facility asset tag, was in service at an R&D facility, and shows normal cosmetic handling marks on the rear panels. No power-on test, operating hours or included accessories beyond what is visible in the photos are documented.