manufacturer:      Beckman

model:                  160

SPECIFICATIONS

Optical System

Type                                      Double-beam with interference filter.

Light source                          Mercury lamp, standard; zinc or cadmium lamp, optional.

Wavelengths                         254 nm, standard; 10 other wavelengths from 214 nm through 546 nm available as options (see Table 2-1).

Flow Cell

Volume                                  18.5 µL (illum. vo!.with H20),

                                              10-mm-path sample cell;

                                              referencecell operated dry.

Liquid pressure                     500 psimax.

Absorbance

Range

(preset)                                 001, .002, .005, .01, .02, .05, 0.1,

                                              0.2, 0.5, 1 and 2 AU full scale (10 mV recorder).

Time Constants

(preset)                                 0, 0.1, 0.5, and 1 sec.

Linearity                                 1  5% up to 1 AU and 3% to 1.5

                                              AU at 254 nm.

Noise                                     2 X 10^-5AU peak to peak at 254 nm with a time constant of 0.5 sec or greater and flow rate of 1 mL/min of methanol.

Drift                                       1 X 10^-4AU per hour max., at constant temperature, with flow rate of 1 mL/min of methanol.

Recorder

Output                                   10 mV full scale range, 0.65 V max.

Auto Zero                               Automatic baseline zero correction up to 1.8 AU,

implementedby single-key entry or external contact­closure input.

Event Marker                         Negative spike anrecorder trace, implemented by single­key entry or externai contact­cIosure input.

Control

Outputs                                 Contact-closure outputs for peak detector, baseline detector, detector status, and mark.

Memory

Protection                              45-minute battery backup.

                                              Recharge time 8 hours.

Input Power Requirernents

Voltage                                  90-130 VAC or 198-264 VAC,

                                              50/60 Hz, single phase

Power                                    90 W (nominal)

Size

Detector unit                         12 in.W, 71/8 in.H, 15 in.D

                                              30.5 cm W, 18.1 cm H,

                                              38.1 cm D

Minicontroller                         71/2 in.W, 21/2 in.H,4in. D.

                                              19.0 cm W, 6.3 cm H, 10.2 cm D.

Weight

Detector unit                         27 lb.

                                              12.25 kg.

Minicontroller                         1 lb.

.                                             45 kg.