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AquaQuest Spectrophotometers

Specifications and Ordering of spectrophotometers and accessories

Optical System

Optical Bandwidth

Wavelength Range

Wavelength Reproducibility

Wavelength Accuracy


Photometric Ranges

Photometric Noise

Photometric Accuracy

Absorbance Zero Stability

Absorbance Zero Setting

Self Test and Calibration

Filter and Lamp Selection

Display Screen - LCD

Display Screen Scrolling

Wavelength Selection

Reaction Kinetics

Cell and Wavelength Programming

Peak Seek

Curve and Line Fitting

Wavelength Scanning

Method Storage

Real Time Clock

Sipette Sampling

Batch Sampling

Sample Temperature

Computer Interface

Sample compartment size

Power Requirements



Littrow monochromator using 1200L/mm holographic grating; coated optics. Accommodates 100 mm cells

4nm, both versions

190-1100 nm; 325-1100 nm visible version

Better than 0.1nm

Within 1nm

Typically 0.01% at 220 nm and 340 nm - UV version

-0.3 to 3.0A, 0-200%T, 0-9999C

Less than ±0.0002A at 500 m

1% or 0.005A whichever is greater

Better than ±0.001A/Hr. at 500 nm

0A and 100%T automatic by press button

Automatic at switch on

Automatic - coupled to wavelength

High resolution backlit screen with contrast control, displays menus, curves, scans and all data etc.

Effective viewing width of 550 mm

Keyboard entry with GO TO key

Tabulation of results; reaction plots, reprocessing

Up to 8 cells and 10 wavelengths in any combination

Automatic with baseline flattening

Linear, quadratic or cubic, with or without intercept, for up to 30 standards with curve editing

Scan speeds up to 4000 nm/min with the scan software

Up to 100 methods and 30 curves, security coded

Timed and dated reports

Under internal control with screen display

For up to 100 samples under internal control

Displayed and set from Keyboard

Bi-directional serial RS232C and USB ports

196 x 105 x 107 mm (1 x d x h)

110-250V, 50/60Hz, 170W/120W UV/Visible version

16.8Kg CE 4001, 18.6Kg CE 4002

480 x 340 x 205mm (l x d x h)

Spectrophotometers are supplied with power cable, instruction manual and Dual holder for 10 mm cells and 16 mm tubes.  


CE 4001 Spectrophotometer

325-1100nm Wavelength range

4nm Bandpass

System 1

Spectrophotometer, spare lamp(s) spare fuses, 2 cells and dust cover.

UV / Visible Range

CE 4002 Spectrophotometer

190-1100nm Wavelength range

4nm Bandpass

Cecil Instruments policy is one of continuous development. We therefore reserve the right to change specifications without notice.

Some Examples of Software:-

Assay Program

Construction and entry of mathematical formulae involving measurements at multiple wavelengths with automatic computation of assay results.


Fast data transfer to PC for use with Excel or other spread sheets.

Quant M

Multi wavelength assays at 2 or 3 wavelengths, Warburg and Christian assays at 2 or 3 wavelengths, wine assay, at up to 10 wavelengths.


The instrument will automatically perform a wavelength scan and perform a variety of numerical analyses of colour.

Program C

Cell program for up to 4, 6 or 8 cells.

Program W

Wavelength program for up to 10 wavelengths and timed interval measurements at a fixed wavelength.


Wavelength scans with peak labelling and peak tables. Time course plots while re-processing.


Kinetic measurements with plots, reprocessing of data.

Kinetics M

Multi-cell Kinetics linked with autocell changing, and plotting of reaction curves.


Absorbance and Wavelength validation using certified standards or liquids. Validation of optical bandwidth, etc.

Sample Holders

Single cell holder                                                            

Dual holder for 10mm cells and 16mm tubes                        

Holder for 10, 20 and 50mm cells                                      

Universal cell holder, 10mm cells upwards                          

Long pathlength cylindrical cell holder                                


Cell Changers and Holders

4 cell automatic changer (no holder)                                 

6 cell automatic changer and holder                                 

8 cell auto changer and holder                                        

3 x (1-50mm) cell changer for water analysis                      

4 x 10mm cell holder for auto changer                               

4 x 50mm holder for auto changer                                    


Sipette, Batch and Sip Sampling

Holder for 10mm sipette cell                                            

Holder for sipette cells up to 50mm                                   

Batch sampler for 40 samples with pump                            

Batch sampler for 100 samples with pump                          

Return sipette system no cell or holder                             



Deuterium lamp with one wear warranty                            

Tungsten halide lamp in pairs                                          



Water flow holder for auto 4 cell changer                          

Water flow holder for single, sipette cell                           

Peltier controller and 10mm cell holder                             

Peltier controller and 4 cell auto changer                           

Cell compartment lid and pipe port for

water thermostatting                                                   


Printers, cables and computers

RS232c cable for PC with 25 pin outlet and protocol manual    

RS232c cable for PC with 9 pin outlet and protocol manual      

Printer connection cable                                                   

Dot matrix printer                                                           

Ink jet printer                                                                 

Print rolls and ribbon for integral printer                               


Calibration Filters

Holmium filter in holder                                                        

Didymium filter in holder                                                      

Set of 4 certified absorbance filters in holders                        

Set of 6 certified absorbance filters in holders                         

Set of 2 certified wavelength filters in holders                         

1010 31 00

4002 32 00

2010 38 00

1010 38 00

1010 39 00

2021 34 00

2021 36 00

4000 37 00

2020 35 00

2010 24 00

2010 36 00

1010 32 00

2020 37 00

2020 82 00

2020 82 02

2020 21 00

2202 01 42

2303 01 40

2020 36 15

1010 33 00

2020 31 00

2020 32 00

1010 05 00

2020 26 00

2020 83 00

8000 71 00

8000 70 01

8000 72 01

2020 03 20

202 01 44

303 01 30

594 44 00

594 66 00

303 40 00