Metertech SP-870+ Operational Manual Download Page 7

 

Specifications 

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Wavelength 

330 ~ 1100nm 

Bandwidth pass 

5nm 

Wavelength accuracy 

+/- 1nm 

Wavelength repeatability 

+/- 0.5nm 

Photometric range 

-0.300 ~ 3.500Abs 

Measurement mode 

A / %T / C 

Factor 

0.1 ~ 9,999.9 

Concentration 

0.000 ~ 99,999.99 

Photometric accuracy 

1%  or  0.003A(from  0.000  to  2.500A), 

whichever is greater by NIST SRM930e 

Stability 

<  0.003Abs/hr  at  500nm  after  one  hour 

warm-up 

Baseline flatness 

+/- 0.005 Abs(at 400 ~ 1100nm) 

Stray light 

< 0.1% at 340nm by NIST SRM2031 

Light source 

12V halogen lamp   

Detector   

Si photodiode 

Wavelength scanning speed 

2500nm/min   

Cuvettes 

10mm  square  cuvette,  10  ~  13mm  round 

tube,  16mm  round  tube(option),  50mm 

rectangular cell, and 1 inch round tube 

Light beam height 

8.5mm at measurement position   

Data storage 

100 sets 

Display 

16 x 2 large characters LCD   

Interface 

RS232 and parallel printer   

Function 

Initial  wavelength,  lamp  tuning,  system 

validation, resolution 

PC software 

Data  collection  from  saved  memory;  real 

time data display and storage 

Power   

100 ~ 240V at 50/60Hz 

Dimension 

400(W) x 300(D) x 145(H) mm 

Weight 

7.5 kgs 

Ambient temp/humidity 

room temperature 15 ~ 35

humidity < 80%   

_______________________________________________________________ 

Specifications subject to change without notice 

 

Summary of Contents for SP-870+

Page 1: ......

Page 2: ...rom Metertech Inc Information in this publication is subject to change without notice and does not represent a commitment on the part of the vender Any errors or omissions which may have occurred in this publication despite the utmost care taken in its production will be corrected as soon as possible but not necessarily immediately upon detection Copyright Metertech Inc 2005 Metertech Inc 63 2 Che...

Page 3: ... electrical conditions 7 Installation 8 Operation 10 Powering up the equipment 10 Absorbance and Transmittance measurements 10 Concentration measurement with a factor 11 Concentration measurement with a standard 12 System functions 13 Data saving and retrieve 15 Printer 15 Analog output 15 Maintenance 16 Routine care 16 Replace the lamp 16 Messages 18 Replacement parts 18 ...

Page 4: ...ing unique features 1 Two line 16 large character LCD display 2 Motorized optical filter wheel and grating 3 Multi use sample compartment for square cuvettes 0 5 1 round tubes and 50 mm longpath cells 4 Printer and RS232 interface 5 Base line data for entire wavelength range 6 100 sets of data storage Components 1 LCD display 4 Model name and company brand 2 Sample compartment door 5 AC adapter 3 ...

Page 5: ...nt setting 5 ESC button To quit from the current process or to quit the current screen and return to previous screen 6 BLANK button Set the instrument to 100 transmittance or zero absorbance or zero concentration 7 FUNCTION button Selecting and performing supporting functions shown in the screen 8 PRINT button Print out the current reading on screen 9 SAVE button Save the current reading in memory...

Page 6: ...5 Rear panel layout 1 DC fan 2 Power switch 3 DC voltage input 4 RS232 port 5 Printer port Figure 3 Rear panel layout ...

Page 7: ...V halogen lamp Detector Si photodiode Wavelength scanning speed 2500nm min Cuvettes 10mm square cuvette 10 13mm round tube 16mm round tube option 50mm rectangular cell and 1 inch round tube Light beam height 8 5mm at measurement position Data storage 100 sets Display 16 x 2 large characters LCD Interface RS232 and parallel printer Function Initial wavelength lamp tuning system validation resolutio...

Page 8: ...or s manual 5 10mm plastic square cuvette 1 Dust cover 1 50mm cuvette bracket 1 1 inch tube bracket 1 Environmental and electrical conditions The instrument has been designed to operate and meet the specifications on previous pages under the electrical and environmental requirements listed below Line voltage 100 240Vac 50 60 Hz Environment conditions Ambient temperature from 15 to 35 and maintaine...

Page 9: ...propriate voltage 5 Connect the Centronics parallel printer to the instrument at the print port 6 Turn on the power switch and allow instrument to warm up at least 30 minutes for electronic and thermal stabilization 7 The standard cell holder is adaptable for 10 mm square cuvette and 1 2 round tube For 50 mm long path cell measurement please unscrewing two white knobs 1 and removing metal bracket ...

Page 10: ...9 Figure 4b 50 mm rectangular cell holder Figure 4c 1 cylindrical cell holder ...

Page 11: ... with beeping may show up if there is sample in cell holder or lid is opened during initialization Please power off machine correct the mistake and power on again Absorbance and Transmittance measurements 1 Press A T C to select the absorbance or transmittance mode 2 press λ then press numerical key 0 9 and then ENTER The machine will go to the assigned wavelength and use base line data to calcula...

Page 12: ...ank solution into the cell holder and close the sample compartment lid 7 Press BLANK to set 0 000C 8 Remove blank solution and insert sample solution in the cell holder The sample reading appears on the display 9 Users can press A T C to other mode or press ESC and back to step 4 to enter new factor or step 6 to BLANK again Note If wavelength needs changing in concentration mode please go to A T m...

Page 13: ...lder and press ENTER LCD shows FTR XXX X Sample BLANK with calculated standard factor shown on the screen 7 Insert blank solution into the cell holder and press BLANK again to get WL XXX nm C 0 000 8 Put in sample solution to get its live concentration reading 9 Users can press ESC and back to step 3 to repeat the whole process or return to step 7 by BLANK or press A T C to other measurement mode ...

Page 14: ...SC twice to the next option 3 Printer Press ENTER and shows 3 Printer OFF 0 OFF 1 ON Users can enforce PRINT button be OFF ON by entering 0 1 If the printer is not connected to parallel port press 1 will show Printer Error and results in Printer OFF Press ESC twice to the next option 4 Conc Unit Press ENTER and get 0 C with blinking at the unit number Keep on ENTER to increase number with differen...

Page 15: ...BW X XX nm Press 2 and start to measure wavelength accuracy at 361nm and 536 nm by a built in HY 1 filter The result shown on display is 361nm 536nm X XXnm X XXnm X XX is the difference between actual wavelength and ideal wavelength Press ESC twice to the next option 8 Lamp Tuning Please see the explanation starting from step 7 of section Replacement the lamp Press ESC to the next option A Version...

Page 16: ...If data number is larger than 99 it is restarted from 00 and update last saved data 4 All saved data can also be checked by VIEW key The latest stored data shows up first These data are displayed sequentially at one second interval 5 Users can hold the current data by pressing down VIEW or ESC to quit during viewing all data Printer User can print out any data with wavelength shown on LCD at any m...

Page 17: ...ument The exterior of the instrument can be cleaned periodically as follows SWITCH OFF first the instrument and disconnect from the mains supply Using a lint free cloth dampened with a weak solution of detergent and water wipe the exterior surface of the instrument as necessary Wipe over with a soft cloth dampened with clean water Dry the surface with another soft cloth Replace the lamp CAUTION Sw...

Page 18: ...raight up to remove it from socket as shown in figure 5a above 5 Hold a new lamp with tag at flat portion facing to user then remove the tag Align the two legs of new lamp with the two holes 2 in the socket and press the lamp securely into the socket 6 Carefully wipe off any fingerprints on the lamp with a soft tissue Figure 5b Lamp tuning 7 Power up the instrument by following previous instructio...

Page 19: ...ed call for service Error 1 Light source is not functioning or too weak bright change with proper lamp supplied by original manufacturer Error 2 Grating motion exceeds lower limit call for service Error 3 Grating motion exceeds upper limit call for service Beep Beeping while blanking with lid open or blanking solution absorbance greater than 1 5A or while sample reading with absorbance greater tha...

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