Harvard Apparatus PHD ULTRA 703007 Syringe Pump

Harvard Apparatus PHD ULTRA syringe pump, catalog number 703007, a microprocessor-controlled infusion/withdrawal syringe pump used in R&D laboratories for precise fluid delivery in microfluidics, dosing, calibration and general dispensing work. The unit is a benchtop pump with a color touchscreen interface running Harvard Apparatus EZ PRO software, which allows pumping methods to be built and stored directly on the pump without a PC. The PHD ULTRA 703007 configuration supports both infusion and withdrawal, accepts syringes from approximately 0.5 uL to 140 mL, and covers flow rates from the picoliter-per-minute range up to roughly 216 mL/min depending on syringe size, driven by a small step-angle stepping motor for smooth, low-pulsation delivery. Nameplate ratings are 100-240 VAC, 50/60 Hz, 0.5 A; the label also carries CE, ETL and RoHS markings. Photos show the pump fitted with a multi-syringe rack with stepped syringe cradles and thumb-screw retaining bars, plus the standard pusher block assembly on twin guide rods. The rear panel provides RS-232, RS-485 in/out, USB, digital I/O, foot switch, two analog inputs and two analog outputs, a remote pump connection and an AC-in/RS-485 power source selector switch. The pump carries a facility asset label and inventory tags from the seller's site; the warranty seal on the rear panel appears intact. No power-up or performance test is documented, and no accessories, syringes or cables beyond what is visible in the photos are included.