Waters 680 Automated Gradient Controller

Item Number:

1078

Manufacturer:

Model:

680

Condition:

Used

Power Supply:

115 / 230 V, 1 / 0.5 A, 80 VA, 50, 60 Hz

Specifications:

Waters HPLC 680 Automated Gradient Controller, Operational Specifications:
Flow: 0 to ml/min in 0.01 ml/min increments for each operational pump (0-30 ml/min total for three pumps),
Composition: 0 to 100% in 1% increments for each of three components - A, B and C,
Gradient Programs: 10 storable programs, each with 10 segments. Each segment allows simultaneous changes in total flow and composition of A, B or C in accordance with any of 11 different curves.
Timed Event Programs: 10 storable programs, each with 20 timed events. Capable of controlling 7 external devices and an audible beeper.
Program Memory Protection: Programs stored in memory retained indefinitely without line power or batteries. Stored programs may be modified or deleted by operator.
Low Pressure Limit: Settable from 0 to 5950 psi in 1 psi increments. Low pressure for more than 90 sec will cause pumps to stop.
High Pressure Line: Settable from 51-6000 psi in 1 psi increments. High pressure for more than 2 sec will cause pumps to stop.
Compressibility Compensation: Settable from 0 to 40 % in 0.1% increments for each of three components.

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