Hewlett Packard 1100 Series G1312A Binary Pump

Hewlett Packard 1100 Series G1312A Binary Pump

This unit’s reliable design keeps maintenance to a minimum by using electronically-controlled active inlet-valves for flow rates up to 5.0 mL/min. Floating pistons ensure the highest seal, low internal and external volumes of capillary connections, minimum bench space needed due to two dual-piston, in-series pumps in one housing.

A wide flow range starting at typically 50 uL/min for reproducible gradients at low flow with solvent degassing.

The binary pump is based on a two-channel, dual-piston in-series design which comprises all essential functions that a solvent delivery system has to fulfill. Metering of solvent and delivery to the high-pressure side are performed by two pump assemblies which can generate pressure up to 400 bar.

**This item has been tested for basic functionality.  Unit has some stains from normal use. Front panel plastic lens is slightly scratched & back of unit is missing metal plate. See photos for details. 

Manufacturers Specifications:

• Power consumption: 220VA
• Ambient operating temperature: 4–55 °C (41–131 °F)
• Ambient non-operating temperature: -40–70 °C (-4–158 °F)
• Humidity: < 95%, at 25–40 °C (77–104 °F) Non-condensing
• Operating Altitude: Up to 2000 m (6500 ft)
• Non-operating altitude: Up to 4600 M (14950 ft)