Waters Model 515
HPLC Pump combines the most important aspects of eluent delivery for
HPLC: high precision, reliability, smooth eluent flow, and proven
performance. A single 515 pump in an HPLC system is ideal for
high-throughput isocratic analyses. When you control two or three 515
pumps through a data system or external controller, you can achieve
reproducible, multipump gradient delivery with exceptionally smooth
concurrent-stream blending.
Programmable flow rate range:
100-µ L heads 0.000 to 10.000 mL/min, in 0.001-mL/min increments
225-µ L heads 0.000 to 22.5 mL/min, in 0.001-mL/min increments
Maximum operating pressure
6000 psi (41,370 kPa, 401 bars) for 100-µ L heads, 3000 psi (20,685
kPa, 200.5 bars) for 225-µ L heads; programmable upper and lower limits
Pressure ripple (one pump)
= 2.0% at 1 mL/min, degassed methanol, at 1000 psi backpressure
Flow precision:
±0.1% RSD of retention time at 1 mL/min, 1000 to 2000 psi, paraben PQ test, or 2 seconds SD
Flow accuracy:
±1.0% of setting at 1 mL/min, or 30 µ L/min, whichever is larger, using degassed methanol at 1000 to 2000 psi backpressure
Condition: Working