|
Detection Type |
Double beam photometer |
|
Noise |
< 1.5 x 10-5 AU peak-to-peak at 254 nm, flowing water at 1 ml/min, 1 second response time (10-90%), standard flow cell |
|
Drift |
< 5 x 10-4 AU/hour at 254 nm after warm-up. |
|
Wavelength Range |
190 – 600 nm, settable in 1 nm increments |
|
Wavelength Accuracy |
±2 nm |
|
Wavelength Reproducibility |
±0.3 nm |
|
Bandwidth |
6.5 nm |
|
Linear Absorbance Range |
Better than 1% up to 1.2 AU using acetone at 265 nm |
|
Response Time |
0.25, 1 or 4 seconds (10-90%); user-selectable |
|
Spectra |
Storage of 1 spectrum during run; scan rate 10 nm/sec; range from 190 to 600 nm, selectable. Post-run plotting speed from 1 to 50 nm/sec selectable; plotting of background-corrected spectrum |
|
Light Source |
Deuterium lamp from 1090/40/50 DAD |
|
Flow Cells |
Standard 14 µl volume, 8 mm pathlength cell with 40 bar (588 psi) pressure maximum. Optional micro, preparative, high-pressure cells are available |
|
Display |
Single line, 16 character fluorescent display with real time display of operating parameters and/or absorbance |
|
Control |
Integrated keyboard with function keys; parameter editing during run possible; keyboard lock; optional control by computer or 3396 Series II integrator |
|
Parameters |
Wavelength, output range, response time, zero, offset, balance, spectrum acquisition |
|
Diagnostic Aids |
Wavelength calibration check with Holmium oxide filter |
|
Time-programs |
Time-programmable wavelength and output range; storage of up to 5 time-programs |
|
Analog Output |
One output user-configurable as recorder or integrator. For recorder: 100 mV or 1 V output range from 0.001 to 4 AU, user-selectable; for integrator: 100 mV/2 AU full scale or 1 V/2 AU full scale, user-selectable |
|
Communications |
START (input/output), STOP (input/output), READY (output), SHUTDOWN (output) for synchronization with other LC modules |
|
Safety Aids |
Extensive diagnostics, error detection and display via front-panel LED’s. Leak detection, safe leak handling, leak output signal for shutdown pumping system. Low voltages in major maintenance areas |
|
Environment |
Temperature range: 5 to 55°C |
|
Power Requirements |
Line voltage: 100-120 or 220-240 VAC ±10% Line frequency: 48-66 Hz Power consumption: 150 VA max |
This refurbished HP 1050 Variable Wavelength Detector (VWD) is in great condition. It has been tested at SpectraLab Scientific.
A 90 day warranty is included.
