Waters 1525M - A.5 Performance Specifications for the 1525µ Pump; A.6 Performance Specifications for the 1525 EF Pump

Specifications 90
A
Table A-5 Performance Specifications for the 1525µ Pump
Item Specification
Programmable flow rate, range
50-µL heads
0.00 to 5.00 mL/min, in 0.01-mL/min increments
Maximum operating pressure 6000 psi (41,370 kPa, 401 bars) with 50-µL heads
Pressure ripple (one pump) <2.0% at 0.5 mL/min, degassed methanol, at 1000 to
2000 psi backpressure
Flow precision 2 seconds SD, six replicates based on retention time or
volumetric measures at 0.2 mL/min, 1000 to 2000 psi
backpressure, PQ test (each pump individually)
Flow accuracy 2% of setting at 0.1 mL/min using degassed methanol
at 1000 to 2000 psi backpressure (each pump
individually)
Gradient accuracy <1% (typical) between 10 to 90%, and 1000 psi back-
pressure (methanol: methanol with propylparaben and
one 50-µL mixer)
Gradient precision <0.5% RSD (typical) between 10 to 90%, 0.1 mL/min,
and 1000 psi backpressure (methanol: water with
octanophenone and one 50-µL mixer)
Gradient delay volume <60 µL (without mixer, no manual injector and no
column heater) <200 µL (with one 50-µL mixer, no
manual injector, and no column heater)
Table A-6 Performance Specifications for the 1525EF Pump
Item Specification
Programmable flow rate, range
225-µL heads
0.00 to 22.5 mL/min, in 0.01-mL/min increments
Maximum operating pressure 5000 psi (34,474 kPa, 345 bars) with 225-µL heads;
programmable upper and lower limits
Pressure ripple (one pump) <3.0% at 2.25 mL/min, degassed methanol, at 1000 psi
backpressure
Flow precision <0.1% RSD or 2 seconds SD, six replicates based on
retention time or volumetric measures at 1 mL/min,
1000 to 2000 psi backpressure, PQ test (each pump
individually)