Portable Spectrophotometer* Care and Maintenance
1. Cleaning
Caution: Potential chemical and biological eye and skin hazards. Only qualified professionals should perform the maintenance work described here.
Important: Remove any cuvettes still in the instrument and dispose of them
or their contents using an effective disposal method.
Cleaning Requirements:
Caution: Potential pinch, eye, burn and chemical hazards. Always disconnect the instrument from the power supply before performing any cleaning operations.
Important: Do not under any circumstances use solvents (e.g., liquor, acetone, etc.) to clean the instrument, display, or accessories.
Spectrophotometer:
Use a soft, damp cloth to clean the housing, sample chamber, and all accessories. Liquid soap can also be used. Do not leave excess water in the sample chamber. Do not insert brushes or sharp objects into sample chamber #1
to avoid damaging mechanical parts. Use a soft cotton cloth to carefully dry the cleaned parts.
Display:
Be careful not to scratch the display. Do not touch the display with ballpoint pens, pencils or similar sharp-edged objects. Use a soft, lint-free, oil-free cotton cloth to clean the display. Diluted glass cleaner can also be used.
Sample cuvette:
CAUTION Potential chemical/biological exposure hazard. Proper laboratory procedures should be used whenever chemical exposure hazards arise.
1. After the process is completed, please use detergent to clean the glass sample cuvette.
2. Then, rinse the sample cuvette several times with tap water, and then rinse thoroughly with deionized water.
Important note: For glass sample cuvettes that have been filled with organic solvents
(such as chloroform, benzene, toluene, etc.), they must be rinsed with acetone before containing detergent. . In addition, it is necessary to perform a final rinse with acetone before drying the sample cuvette.
2. Maintenance
Inserting or replacing batteries:
1. Remove the cuvette from the sample chamber.
2. Turn off the instrument.
3. Unplug the power cord.
4. Carefully move the instrument and place it on a soft surface.
5. Use a screwdriver or coin to unscrew the cover.
6. Remove the lid and set it to one side.
Note: For quality and safety reasons, only lithium batteries (LZV551) supplied by the manufacturer should be used in this instrument. Using non-instrument-specific batteries may affect the function of the instrument's electrical parts due to overload /
or damage the instrument's electrical parts. Some battery types may even cause a fire or explosion hazard.
7. Carefully push the battery into the compartment from right to left with the label side up.
8. Push in the battery and insert the instrument contacts into the battery socket.
Important: Battery contacts should always be kept clean. Contaminated contacts may cause contact heating and voltage sag, interfering with the correct operation of the spectrophotometer.
9. Use a screwdriver or coin to tighten the screws to secure the cover.
10. Carefully hold the instrument upright.
11. Plug it in again - the instrument is now ready. Battery charging.
3. Battery usage information
Lithium battery handling
With lithium battery, DR 2700 can be used as a portable instrument. NOTE Please note the following information on the lithium battery pack:
Do not short the contacts. Do not place batteries near sources of fire. Do not expose the battery to temperatures above 60°C (such as may occur on the left side of a car in sunlight or in direct sunlight).
Be careful not to get the battery wet. Be careful not to hit or hit the battery, etc. Do not drop it. Please do not step on it. Do not disassemble or modify the battery in any way. Battery performance decreases as temperature increases.
1. Optimized operation of the battery:
After connecting the plug-in power supply on the back of the instrument and plugging it into the power socket (100-240 Volt/50-60 Hz), the battery will charge automatically .
NOTE Only use an external power source specified by the manufacturer when operating the instrument and charging the internal lithium battery pack. Specifying the power supply and socket shape, voltage rating (12V, 2A) and electromagnetic characteristics are important prerequisites for ensuring
DR 2700 performance and user safety. IMPORTANT NOTE: It is recommended to charge the battery at an ambient temperature of 10°C to 30°C as this is the most efficient range for charging the battery to 100%
.
2. Battery life:
Battery has a limited life. The more frequently it is used, the lower its capacity becomes. If a fully charged battery can only operate the instrument for a relatively short period of time, replace the battery with a new one.
Note: There is no need to use up all the power in the battery before recharging. There is still residual power in the battery and recharging will not reduce its capacity!
3. Loading the battery/running time
The time required to charge a newly installed battery is about 3.5 hours. Runtime of a fully charged battery: Charging: If the battery is fully charged and the user performs 10 measurements per day and keeps the instrument on for 15 minutes before automatically turning off after each measurement, then the The battery lasts 6 to 7 days before needing to be recharged.
4. Lamp replacement
Note: To avoid electric shock, please disconnect the instrument from the power supply before inspecting the power lamp.
1. Remove the cuvette from the sample chamber.
2. Turn off the instrument.
3. Unplug the power cord.
Warning Burn hazard. Please wait for the lamp to cool down. Touching a lamp that is still radiating heat may cause burns.
4. Carefully move the instrument and place it on a soft surface.
5. Use a screwdriver or coin to unscrew the screws on the cover.
6. Remove the lid and set it to one side.
7. If there is a battery in the instrument, push it out and place it to one side.
8. Use a screwdriver (slotted head or cross recessed head) to unscrew the screws on the lamp.
Warning Burn hazard. Please wait for the lamp to cool down. Touching a lamp that is still radiating heat may cause burns.
9. Lift the light fixture carefully.
10. Place both screws to one side.
11. Push up the compression spring.
12. Unplug all halogen lamps from plug sockets.
13. Carefully remove the halogen lamp plug from the plug socket.
Important: Only certain devices may be used when holding the lamp. Avoid touching the glass as the bulb may dry out substances on your skin, which will speed up the aging process of the lamp.
14. Plug the new halogen lamp into the socket.
15. Insert the halogen lamp with the semicircular part facing down.
16. Gently press the socket into the direction of the halogen lamp, and push down on the compression spring to engage it.
17. Carefully insert the light fixture again.
18. Use a screwdriver (slotted head or cross recessed head) to tighten the screws to secure the lamp.
19. Put the battery back into its proper position.
20. Use a screwdriver or coin to screw on the back cover of the instrument.
21. Carefully hold the instrument upright.
22. Plug in the power supply.
23. Reset Lamp History