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LAMP REPLACEMENT 

8.1 

Light source check 

Observe the light source on the left side of the sample vial holder as in Diagram 11. Turn on the instrument, 
and press              . The light source will light up for 5 seconds. If it’s not lighting up or it’s flashing, please 
replace the lamp.   

8.2 

Lamp Replacement 

The tungsten filament lamp module (sold separately) is shown as in Diagram 12. The lamp hole and 
socket are as in Diagram 13. Diagram 14 shows you how to replace the lamp. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   

Unscrew the lamp 
cover with a coin 

Use a tweezer to 
unplug the socket 

Use a tweezer to 
unscrew the lamp 
cover. 

Take out the old tungsten 
filament lamp module 

Install the new tungsten 
filament lamp module. 

Close the lamp cover 
and screw tight with a 
tweezer. 

Use  a  tweezer  to  plug 
wire  into  the  gap  and 
plug in the socket 

Screw  on  the  lamp 
cover tightly 

Diagram 12 

Tungsten filament lamp module 

Diagram 13 

lamp hole and socket 

Diagram 11 

Check light source 

socket 

lamp hole 

lamp 

cover 

gasket 

tungsten 

filament 

lamp 

Socket 

Light source 

Содержание TN500

Страница 1: ...1 TN500 Portable Turbidity Meter Instruction Manual www aperainst de...

Страница 2: ...eparation for Calibration 10 4 2 Calibration Procedure Take 0 NTU and 20 NTU as an example 11 4 3 Notes for Calibration 12 5 Turbidity Measurement 14 5 1 Sample Vial Handling 14 5 2 Measurement Prepar...

Страница 3: ...and parameter setting TruReadTM measurement mode automatically takes multiple consecutive readings and calculate their average minimum and maximum value as well as displaying each set of data in a bri...

Страница 4: ...mazin Solution 0 20 100 400 and 800 NTU FNU Detector Silicon photovoltaic Measuring Mode Normal measurement and TruReadTM measurement Data Storage 200 groups Data Output USB to PC Calibration Record C...

Страница 5: ...er when measuring Dust proof plug Take off the plug when measuring Housing Sample vial holder Display Calibration vials or sample vials Keypad Positioning mark Align the mark with the mark on the cali...

Страница 6: ...fiber cloth Power adaptor 5V 1A Software flash drive Silicone oil 10 ml Sample vials 6 USB Cable under the meter User Manual Diagram 2 Measurement Mode Measurements and unit Operation Guide Battery ic...

Страница 7: ...Calibration Mode Standard values Operation guide Finished calibration indicator Parameter Setup Menu Operation guide Data Recall Saved data numberings Saved data Operation guide Calibration Menu Para...

Страница 8: ...work properly If charging the instrument when it is turned on icon will be displayed Users can continue to use the instrument while it is being charged If charging the instrument when it is turned of...

Страница 9: ...e The data as shown in Diagram 5 has 10 measurements Obviously for one measurement interface the memory storage of the normal measurement is different with that of TruReadTM measurement The below tabl...

Страница 10: ...lace zero turbidity solution Replace 0 0 NTU calibration solution open the vial cap pour out the original solution add 1 2 distilled water cover the cap and shake the vial to rinse it and pour out the...

Страница 11: ...to shake the solution vigorously as this will create air bubbles which destabilize the measurement For 0 0 NTU calibration solution do NOT shake or flip If using Formazin calibration solution as it t...

Страница 12: ...00 NTU calibration vial in the sample vial holder and press to calibrate After calibration is done press to confirm repeat the steps to calibrate 400 NTU and 800 NTU After calibration is done press to...

Страница 13: ...solution can be used for verification test If a negative error occurs it cannot be verified For this instrument there is a Zero Turbidity Error Reminder function If the negative error at the zero poi...

Страница 14: ...stand for 2 to 5 minutes to eliminate potential air bubbles see Diagram 8 c Clean off the surface of the vial to ensure it is dry clean and free of stains Apply a small drop of silicone oil on the sur...

Страница 15: ...before calibration as the solution will experience some shaking when the vial moves which may result in inaccurate measurements b Sample Vial cleaning requirement Sample vial must be rigorously cleane...

Страница 16: ...or FTU P4 Data logging mode users can select automatic data logging mode or manual data logging mode see section 3 6 for details P5 Delete saved data select Yes to delete all the saved data non revers...

Страница 17: ...er setting information Function buttons 7 2 Operation Key in Software Interface Refresh Port reset key When the instrument and computer are not connected click to connect SyncTime Sync time key click...

Страница 18: ...d in the USB drive 7 4 Run Software Click Download key all data in the instrument memory will be sent to the computer When the program is running all measurement information will be sent to the comput...

Страница 19: ...are as in Diagram 13 Diagram 14 shows you how to replace the lamp Unscrew the lamp cover with a coin Use a tweezer to unplug the socket Use a tweezer to unscrew the lamp cover Take out the old tungste...

Страница 20: ...ry This limited warranty does NOT cover any issues due to Accidental damage Improper use Normal wear and tear Transportation Storage Failure to follow the product instructions Unauthorized maintenance...

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