Description
Waters 2695 HPLC System Specifications
| Number of solvents | One to four |
| Solvent conditioning | Vacuum degas, two (2) operating modes, four (4) chambers, ≈<500 uL internal volume per chamber> <500uL interval 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 | Integra, 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 | 5000 psi (345 bar) (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 accuracy | ±0.5% absolute, independent of backpressure (Proportioning Valve Pair Test [degassed methanol: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.) |
| Flow precision | ≤0.075% RSD or ≤0.02 min SD, based on retention time (N = 6) or volumetric measures (0.200 to 5.000 mL/min), isocratic premix |
| Flow accuracy | ±1% or 10 µL/min, whichever is greater, (0.200 to 5.000 mL/ min), degassed methanol, at 600 psi backpressure |
