Waters

Waters 410 Differential Refractive Index Detector (RID)

General Information:

A long-life LED light source with special circuitry to compensate for changes in intensity over time
A microprocessor-controlled keyboard with digital readout
Auto zero, temperature limit alarm and cell purge functions
An internal heater with counter heat exchangers to protect the solvent stream from changes in ambient temperature
Memory protection in the event of a power failure
A compressed output function which keeps large peaks on scale without losing smaller peaks
Built-in over-pressure protection for the cell
Built-in diagnostics that check the operation of the instrument
Four time constant settings from 0.2 to 10.0 seconds

Conditions
Specifications
Rl Range
1.00 to 1.75 RIU
Measurement Range
5x10-3 RIU maximum FS (SENS= 1, SF=1)
5 x 10-a RIU minimum FS (SENS=1024, SF=100)
Flow Rate
0.3 -10 mL/min
Noise
2.0 x 10-8 RIU, (TC = 1, SF = 20, SENS = 32,
THF at 24 °C with restrictor coil)
Drift
2.5 x 10-7 RlU/hr (static with THF)
Sensitivity Settings
1, 2, 4,8, 16, 32, 64, 128, 256, 512, 1024
Time Constant Filter Settings
0.2, 1, 3, 10 seconds
Recorder Output
0 to 10 mV
Temperature Control
Internal oven 30 to 50 °C
External column heaters Ambient to 150 °C
Light Source
930 nm pulsed Light Emitting Diode (LED)
Flow Cell
Fused quartz
Cell Volume
10 uL
Pressure Limit
100 psi
Fluid Path Materials
316 stainless steel, Dynasii®, Suprasil II®,
Teflon®, Kalrez®, quartz


This refurbished Waters 410 Differential Refractive Index Detector (RID) is really in great condition and is tested