Bio-Rad Model EM-1 Econo™ UV Monitor - Manual (Page 21)

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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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