Firma:              Gilson

Modell:            155

Kommentar:   Dokumente engl.

Gilson 155 UV/UVIS Detector

Description

The Gilson 155 and 156 UVNIS Detectors are microprocessor-controlled absorbance detectors that provide dual wavelength detection. Both detector models are compatible components of a Gilson modular HPLC system. And, the 155 Detector with its front panel control is also compatible with other commercially available HPLC systems.

The 155 Detector can be controlled via its front panel or via TRILUTIIoN'"" LC Software. The 156 Detector must be controlled via TRILuTION LC since it does not have an integral front panel display. For information an how to control the 156 Detector, refer to the TRILuTioNTM" LC Software User's Guide.

Optics

Gilson's optical design lets you monitor absorbance at any wavelength from 190 to 700 nm.

The detector has a sensitivity range of 0.001 to 2.0 AUFS (Absorbance Units, Full Scale).

Display

The 155 Detector software is self-guiding.

All parameters, values and commands appear an the four-line display.

All of your options are displayed above the six soft keys. Press a soft key to choose and carry out a command. Numeric entries are made using the keypad.

Features

You can choose from the following modes to specify detection conditions and basic operating parameters:

•            single wavelength

•            dual wavelength

•            scan wavelength

•            setup

•            status

•            fite

Technical Specification

Autozero range

Suppresses up to 1.0 AU with 5 mm flow cell installed

Contact control

Event and autozero inputs: remote contact closure can be activated by other Instruments or the Computer

Three channels output data to a recorder.

Display

Four-line display shows modes, parameters, commands and data (155 only)

Drift

After one hour at constant temperature: 3.0 x 10 ^-4 AU/hour

Flow sensitivity

4.0 x 10 ^-4 AU for flow step of 2.0 mL/min to 0.5 mL/min with methanol

Front panel

LAMP ON/OFF hard key, LED indicator Iights for POWER, UV, VIS, REMOTE, and ERROR (155 and 156)

Six soff keys, HELP, ESC and CLEAR hard keys, arrow keys, numeric hard keys, and ENTER hard key (155 only)

Lamp warm-up

One hour maximum time

Lamps

UV Iamp: Deuterium, warranted for 750 hours or 180 days shelf-life Visible Iamp: Tungsten/halogen Iamp, warranted for 500 hours

Linearity

1%, when value is within sensitivity range of 0.001 to 2.0 AU

Flow cells

The following quartz flow cells are available:

Manufacturing standards

Meets applicable Safety and EMC certification standards; UL and CE certified.

Monochromator

Dual beam, steppermotor-driven

•            Range: 190 to 700 nm

•            Spectral bandwidth: 9 nm

•            Setting accuracy: ±2 nm

•            Setting precision: ±0.2 nm

Noise with air block installed

220 nm, short term, peak to peak; 2.0 x 10 ^-5 AU/cm

254 nm, short term, peak to peak; 2.5 x 10 ^-5 AU/cm

350 nm, short term, peak to peak; 10.0 x 10 ^-5 AU/cm

415 nm, short term, peak to peak; 8.0 x 10 ^-5 AU/cm

520 nm, short term, peak to peak; 6.0 x 10 ^-5 AU/cm

650 nm, short term, peak to peak; 4.0 x 10 ^-5 AU/cm

Operating modes

Single wavelength, dual wavelength, scan wavelength, status, setup, and fite

Peak width

0.0 or 4.0 to 99.0 seconds

Physical spare

26.5 x 43.5 x 15.6 cm (10.4 x 17.1 x 6.2 in) requirement

Power requirements

Frequency: 50 to 60 Hz

Voltage: 90-240V

Current rating: 1.5A for 90-120V or 1.0A for 220-240V

Online switching regulation of line input from 80 to 260V AC

Sensitivity Range

0.001 to 2.0 AU. Sensitivity is adjustable in increments of 0.001 AU.

Software control

You can issue commands via the GSIOC or RS-232

You can use the GSIOC or RS-232 to do the following:

•            Select all detection parameters

•            Program parameter changes during run to optimize detection

•            Send digital detector output

Static RI sensitivity

Methanol versus cyclohexane at 270 nm: 5.0 x 10 ^-3 AU

Temperature sensitivity

3.0 x 10 ^-4 /°C for temperature change from 21 ° to 24°C

Weight

8.6 kg (19 lbs.)