User guide

Appendix D

Technical Specifications

Wave length 254 nm and 280 nm

Operating mode AU

Lamp Low pressure mercury lamp with phosphor

screen

Filters Interference type

280 nm

254 nm

Operating temperature +4° to 40° C

Baseline offset ± 0.25 AU Auto-Zero

Time constant 1.5 sec to 90% of full response at all ranges

Sensitivity ranges 2.0, 1.0, 0.5, 0.2, 0.1, 0.05, 0.02, 0.01 AUFS

Output signal 0-1 V, impedance 150 ohms

Power requirements 90-132 VAC (120 V at delivery)

180-265 VAC (220 V at delivery)

Power consumption 15 watts

Dimensions Base unit 14.55 x 18.64 x 20.24 cm

(W x H x D)

Optics unit 13.21 x 15.24 x 3.81 cm

(W x L x H)

Weight Base unit 2.2 kg (4.8 lb)

Optical unit 311 g (11 oz)

Flow cell Optical path 2 mm

Internal volume 80 µl

Illuminated volume 3 µl

Noise 1.0 x 10

-4

AU max peak to peak (dry cell)

2 x 10

-4

AU max peak to peak (flowing liq-

uid)

Linearity 3% to 2 AU at 254 nm

Long term drift < 1 mAU/hr-deg C

Warm-up time 1 hour to meet drift specification

Flow sensitivity <200 µAU/(ml/min)

Regulatory CSA: C22.2 No.151-M1986

Compliance: TÜV: EN61010-1: 1993

CE: EN55011:1991 Class A

EN50082-2: 1995

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