Bio-Rad Model 550, Ultramark, and Benchmark Microplate Reader Accessories - Manual (Page 7)

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1. General Information
1.1 Introduction
The Ultramark microplate reader provides all the flexibility you need for virtually any absorbance
assay. You can use it to perform standard colormetric ELISA and kinetic readings for general cell
screening with 6, 12, 24, 96, 384, and 1536-well microplate formats. The Ultramark has a 10-magazine
filter holder with a working wavelength range of 260–750 nm and an incubation temperature range
up to 42 degrees Celsius. The optical design provides verifiable results up to 4.5 O.D. with an optical
resolution 500 microns.
1.2 Ultramark Specifications
Light Source Xenon Flash Lamp
Spectral Range 250–750 nm
Filter Capacity 10-position magazine
Shaking Yes
Incubation Up to 42 °C , programmable in 0.2° C increments
Power 100–240 V, 60/50 Hz, 22 Amps
Dimensions 20 cm (H) x 43 cm (W) x 51 cm (D)
Compatible Plates Any microplate or suitable medium with dimensions 138 mm
(length) x 98 mm (width). Plate height cannot exceed 15 mm.
Resolution 500 microns
Linearity Less than 0.5% CV from 0–4.0 O.D. at 405 nm
Precision Less than 0.5% CV from 0–4.0 O.D. at 405 nm
Software Compatibility A System 486 or higher, 32 Mb RAM, Windows 95 OS or higher
Read Times 96-well plate: 6 seconds single wavelength
24 seconds dual wavelength
384-well plate: 12 seconds single wavelength
32 seconds dual wavelength
1536-well plate: 34 seconds single wavelength
78
seconds dual wavelength
Compatible Plate types Any format from 1 well to 1536 wells, up to a plate height of 15
mm.
Environmental Operating
Range 5–40 degrees C; max. relative humidity 80% non-condensing