Model 540 Microtiter HPLC Autosampler

This versatile, multi-function HPLC autosampler can access samples from microtiter plates and standard autosampler vials, accommodating 96 and 384 standard and deep-well microplates, or up to 48 standard sample vials in a supplied rack. Sample cooling is available on selected models. Biocompatible fluidics are standard with optional stainless steel plumbing. The Model 540 incorporates three selectable injection modes: full loop, partial loopfill, and microliter pick-up. Sample processing capabilities are provided for sample mixing, dilution, and on-line sample derivatization. An optional plate feeder can fully automate sampling from as many as seven standard plates and three deep-well plates. An optional Peltier sample temperature control is also available for cooling of sample vial/plates.

Sample Capacity:	1 well plate (128 x 86 mm) plus 4-10 mL vials for reagents, diluents and transport liquid or 48-1.5 mL vials (in 48 position vial rack)
Mutli-well Capacity:	96-well microtiter plate (std. or deep well), 384-well microtiter plate
Injection Volume:	0.1 - 1000 µL in 0.1 µL increments
Injections/Vial:	Maximum of 9
Analysis Time:	Maximum 9 hr 59 min. 59 sec.
Syringe:	250 µL (std.), Optional- 100 µl, 500 µL, or 1000 µL
Needle Wash:	Programmable, 300-9999 µL, 250 mL wash solvent solvent bottle
Reproducibility:	Flushed Loop - <0.3% RSD; Partial Loop - <0.5% RSD; µL Pick-up - <1.0% RSD
Memory Effect:	<0.01% with programmable needle wash
Power Requirements:	110 V or 230 V ±20% selectable on rear panel, 50/60 Hz
Communication:	Outputs – inject marker, well marker, labeled well marker, stop I/O (all relay & TTL), BCD (TTL), 4 auxiliary (relay), 4 programmable outputs (relay) Inputs – next injection marker, next well marker, stop I/O, 4 programmable inputs (all TTL)
Certifications:	CE
Dimensions:	11 in. (W) x 15.7 in. (D) x 17.3 in (H) (280 mm x 400 mm x 440 mm)
Weight:	22 kg (48 lbs.)
Factory-Installed Options
Sample Temperature Control:	Built-in Peltier control 4-40° C (factory installed)
Automatic Plate Feeder:	Holds up to six std. microtiter plates or two deep-well plates in addition to one plate on autosampler's deck

Specifications subject to change without notice