Waters Alliance e2695 - Solvent Management Specifications

Solvent management specifications
July 29, 2013, 715003794 Rev. B 279
Solvent management specifications
Solvent management system specifications–e2695 XE configuration:
Item Specification
Number of solvents One to four
Solvent conditioning Vacuum degas, four (4) chambers, ≈< 500 uL
internal volume per chamber
Programmable flow rate
range
0.000 and 0.010 to 10.000 mL/min in 0.001
mL/min. increments
Typical operating flow
rate range
0.050 to 5.000 mL/min in 0.001 mL/min
increments
Compressibility
compensation
Automatic and continuous
Effective system delay
volume
< 650 µL, independent of backpressure @ 1
mL/min
Plunger seal wash Integral, active, programmable
Gradient profiles Eleven (11) gradient curves [including linear,
step (2 curves), concave (4 curves), and convex
(4 curves)]
Dry prime/wet prime Automatic, front panel control
Flow ramping Time (0.01 to 30.00 min in 0.01 min increments)
to reach maximum flow rate
Maximum operating
pressure
345 bar (5000 psi) (0.010 to 3.000 mL/min)
Programmable upper and lower limits. Pressure
fall-off at > 3.000 mL/min.
Pressure ripple ≤ 2.5% (1 mL/min, degassed methanol, at 1700
psi backpressure)
Composition range 0.0 – 100.0 in 0.1% increments
Composition accuracy ±0.5% absolute, independent of backpressure
(Proportioning valve pair test [degassed
methanol (or methanol/propylparaben), 2
mL/min, 254 nm])
Composition precision ≤ 0.15% RSD or ≤ 0.02 min SD, whichever is
greater, based on retention time. (Degassed
methanol/water 60:40 Dial-a-Mix, 1 mL/min, six
replicates, phenone mix, 254 nm.)