LABBOX EASY 70 User manual

Digital burette, EASY 70
Please read the User Manual carefully before use, and follow all operating and safety instructions!
user manual
english / español

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User manual
Digital burette, EASY 70
Introduction
Users must read this manual carefully before using the equipment, and follow the instructions and
procedures in order to be aware of all the precautions, as well as in order to obtain the maximum
benefits and duration of the equipment.
Service
If help is needed, contact with your supplier/manufacturer or Labbox via: www.labbox.com
Please, provide the customer service representative with the following information:
Serial number (on the back side)
Description of the problem
Your contact information
Warranty
This instrument is guaranteed to be free from defects in materials and workmanship under normal use
and service, for a period of 24 months from the date of invoice. The warranty is extended only to the
original purchaser. It shall not apply to any product or parts which have been damaged on account of
improper installation, improper connections, misuse, accident or abnormal conditions of operation.
For claim under the warranty, please contact your supplier.

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1. Safety instructions
Connect the equipment to a grounded power supply to ensure the safety of the
equipment and the experiment. Connect the power when the equipment requires it.
Place the Digital burette EASY 70 on a flat, horizontal, and stable table, leaving at
least 30 cm of free space on each side. Make sure that the surface is adequate for
the device’s weight.
The Digital burette EASY 70 must be used only by previously qualified staff that is
familiar with the equipment and knows how to operate it according to the
instructions manual.
Caution –the Digital burette EASY 70 can have magnetic effects and the staff must
keep in mind the magnetic field; for example, in cases like data storage, artificial
pacemakers…
Carefully read the instructions in this manual before using the device.
Do not operate this instrument in any manner not described in this ‘User manual’.
Ensure that the electrical outlet matches the voltage and power required for this
equipment.
In case of abnormal circumstances during the manipulation of the digital Burette EASY 70,
please turn off the equipment and contact your supplier.
Keep the equipment away from high electromagnetic fields.
The liquid-path of your digital burette is made of borosilicate glass, FEP and PTFE. Do
not apply it in handling liquids like hydrofluoric acid.
The instrument could become clogged or damaged by solid particles in a turbid liquid
such as activated carbon.
The plastic parts of your digital burette could be in swelling condition if concentrated acid,
alkaline acid, methylbenzene, benzene and other nonpolar organic solvents are put into
use.
Keep your digital burette away from the highly combustible carbon disulfide.
Keep the equipment out of corrosive atmospheres.
The equipment can only be disconnected from the socket by pulling on the base of the
plug, not the cable.
Digital burette cannot be autoclaved.
Do not put your digital burette in contact with corrosive gas like HCL smog.
The precautions described in this ‘User manual’ are carefully developed in an attempt to
cover all the possible risks. However, it is also important that you are alert for unexpected
incidents.

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2. Use instructions
This equipment is designed for titrating and/or stirring substances with educational purposes, in
laboratories or industry. This equipment is not suitable for use in residential areas or other areas that
could be dangerous for the user.
3. Inspection
3.1. Unpacking
Unpack the equipment carefully and check for any apparent damages that may have arisen from
transportation. If necessary, please contact your supplier.
Note:
If there is any apparent damage to the equipment, do not
plug it into the power line.
3.2. Items list
The package includes the following items:
Items
Qty
Titrating pipe
1
Titrating pipe cover
1
Digital burette
1
AC Adapter
1
Controller
1
cable USB
2
Bottle Adapter
5 (GL32;GL38; GL28; GL25; S40)
Magnetic Stirrer
1
Remote Titrating pipe
1
Remote Control Handle
1
Stirrer Bar
1 (20 mm)
Filling valve
1
Dispensing valve
1
Filling pipe
2
Installation tools
1
Stand
1
Please check that all the items are present and inform your supplier immediately if any of the above
is missing.

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4. Control
4.1 Digital burette
4.1. Control elements
4.2 Magnetic Stirrer
4.3 Control Panel
1
2
3
1. Stirring Plate
2. USB - Communication port
3. Fastening key
1. Liquid level and piston indicator
2. Return valve
3. Titrating pipe
4. Titrating pipe cover
5. Titrating pipe tip
6. Bottle adapter
7. Controller port micro USB
1
3
4
5
2
6
7
1. LCD display
2. Filling controller
3. Dispensing controller
4. Setting/magnetic stirrer
5. Pre-filling controller
6. Knob
1
5
4
6
2
3

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4.4 Remote Control Handle
The control panel can be adjusted up to an
angle of 45º
1. Magnetic stirrer data port (USB)
2. Sensor holder assembly slot
3. Magnetig stirrer fastening slot
3
2
1
5
4
3
2
1
1. Power switch
2. Remote control handle port
3. Communication port (non-function)
4. Charging/communication port
5. Main instrument port
1
2
1. Control knob
2. Data connector

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4.5 Display
5. Assembly Instruction
-Turn the main instrument lock clockwise to connect titrating tip with main body. It is possible
that this step has already been done.
-Place the titrating pipe tail end into the location slot.
-Push the titration tail tube to a certain extent, so that the end of the tube protrudes from the
main body.
-Connect the titration pipe tail end with the dispensing valve.
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1
2
5
4
1. Battery indicator
2. Unit
3. Magnetic stirring indicator
4. Indication arrow (piston movement)
5. Liquid volume

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-Lock the titration pipe turning clockwise.
-Connect the filling pipe with filling valve, located in the lower part of the main body of the
burette.
-Choose a suitable bottle adapter, and then connect it with digital burette main body.
-Turn bottle adapter to fasten main body and bottle.
Note:
The titration pipe is made of FEP. You can confirm the compatibility
with other substances in chapter 13.

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Note:
-Please ensure that the adapter is fastened prior to each use.
-For perfect titration, please do not move or touch the instrument during
operation to avoid any damage to the EASY 70 device.
-Use the USB cable to connect the main instrument with the controller. The slot is located behind the
burette.
-Turn return valve to position 1. In order to pour off the barrel turn return valve to direction 2
Easy70’s system is ready to operate.
6. Operation Test
Ensure that the socket is properly grounded.
Plug the power cable into the system, then into the outlet. Make sure the power is on.
Refill the bottle with water and connect the burette to the top of the bottle, following the steps
previously explained.
Power on the instrument; the power button is in the back of the controller.
Wait until the self-check cycle is completed.
Do a complete cycle of filling in and dispensing before the first time work:
-Suction: Hold the filling button . The burette will automatically fill up with the liquid. Once
the burette is full, it will emit a double sound.
-Dispensing: Hold dispensing button for fast titration. Once the burette has emptied all the
liquid, it will emit a double sound.
The cycle of filling and dispensing needs to be done at least twice more.
If the previous action has been carried out correctly, the EASY 70 device is ready to operate.
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2

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7. Operation
Place the Digital burette on top of a horizontal, flat, and stable table making a free space of at
least 30 cm on each side. Do not put the stirrer near any warm supply.
Add the substance to titrate in the bottle. Immediately, introduce the digital burette in the top part
of the bottle.
Verify that filling pipe reaches the bottom of the bottle for a complete suction.
Plug the equipment to the electric current; turn on the EASY 70 with the power button.
Wait until the self-check is complete.
Hold the pre-filling button 2 seconds to do the vacuum, the piston shall be at the bottom of the
barrel.
Press and hold the button so the burette fills up with the substance to titrate, until the indicator
Arrow shows that the piston is moving downwards.
To titrate the sample there are two methods, to perform a quick valuation, hold the button . If
the wished method is drop to drop, turn the knob clockwise.
The liquid volume will be recorded continuously and it will appear on the screen. If you want to
record a new volume, press the control and the volume will be restored.
If you want to introduce the magnetic agitator, see the paragraph 8 "Accessories".
Note:
When the recorded volume reaches the maximum value (99.99 ml) the
instrument will stop. Press the knob to reset liquid volume to zero.
7.1 Liquid Emptying
If the liquid needs to be emptied from the barrel to the bottle:
-Turn Return Valve to direction 2.

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Keep pressed the dispensing button until the piston is at the barrel end, make sure all the
liquid in the burette has been poured into the bottle.
-Turn the return valve to position 1. Emptying operation has been completed.
7.2 Function Setting
If you want to realize adjustments of valuation such as how to change the suction speed of the burette,
to vary the speed of the magnetic stirrer, proceed as follows:
-Hold the setting button for about 2 seconds to enter Function Setting interface.
-Press Setting button to flick through pages.
-Hold again the setting button for 2 seconds to exit the function setting interface.
Suction speed: To change the suction speed within a range of 1-16. Turn the knob to adjust
and press to confirm.
Dispensing speed: To change the dispensing speed within a range of 1-16. Turn the knob to
adjust and press to confirm.

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Magnetic stirrer speed: To change the stirring speed within a range from 0 to 5. Turn the
knob to adjust and press to confirm.
Note: This function is only effective after connecting the magnetic stirrer. Go to chapter 8
“Accessories” to install it.
8. Accessories
8.1. Remote Control Handle
The remote control allows you to perform valuation functions from a farther distance.
-Turn Knob for dropwise titrating.
-Press the button to reset liquid volume record.
-Hold 2 seconds the button for fill up the burette.
MAX. Length：90 cm
8.2. Magnetic Stirrer
In order to install the magnetic stirrer conveniently for mixing during the titration experiments, follow
the instructions:
-Connect the control panel with the magnetic stirrer to the indicated slot. The Magnetic stirrer
will have to be in vertical position.

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-Turn the Magnetic Stirrer into horizontal position so that the elements are well fixed.
-Connect the USB Port under the Magnetic Stirrer with the Control Panel.
8.3 Assembly Sensor Holder
The support will allow you to place, the remote pipe or any kind of sensor. If you want to install it,
follow these indications:
-Fasten the metallic support into place.

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-Press the black button on the clamp and introduce the holder through, release the button when
is located at the desired height and the clamp will remain fixed.
-Insert the smallest metal bar into the groove of the largest one so the support is well fixed.
Assembly diagram
8.3. Remote Titrating pipe
Remote titrating pipe can effectively extend the titration distance. It shall be placed on the holder
clamp. To install it, follow up the instructions:
MAX. Length 1.5m

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-Connect the titration pipe tail end with the dispensing valve. Try not to force the material.
-Lock the titration pipe turning it clockwise.
-Follow the figure to assemble the adapter and remote titrating pipe.
Introduce the adapter (1) in the clamp (2) and, immediately afterwards connect the top of the pipe in
the adapter (1).
Note:
- Titrating pipe are made of FEP. Please confirm
compatibility prior to use (chapter 13)
2
1

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9. Calibration
To perform the calibration of this equipment, the room has to be in a temperature conditions between
20 and 25 ºC, and kept constant within ±0.5ºC. The calibration software will record calibration
values in your digital burette. The calibration shall be done weighing repeatedly distilled water at
least five times.
Hardware needed:
-Electronic balance with readability of 0.01 mg
-Distilled water
-PC with operating system Windows (XP/Vista/7/8/10)
Software needed:
-Dedicated calibration software for EASY 70
(For more information, please contact with your nearest distributor.)
10. Cleaning and Maintenance
Caution!
Digital burette cannot be autoclaved
10.1. Cleaning the outer surface
The outer surface of your digital burette is made of ABS (Acrylonitrile butadiene styrene), ideal for
easy cleaning with water.

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10.2. Cleaning the barrel
For the cleaning of the burette it is recommendable to use clean water. Fill up and dispense water at
least 5 times, ensuring that the digital burette does not contain residues that may influence the next
titration.
To perform a deep cleaning, proceed as follows:
-Replace the bottle with one with de-ionized water
-Turn return valve to direction 1, hold the pre-filling button and the piston will stop at the barrel
bottom.
-Press filling and dispensing button to absorb and eject clean water at least 5 times.
-Hold the pre-filling button again so the piston stops at the barrel bottom.
-To empty completely the burette, turn the return valve to direction ②, press ‘Dispensing
button’ so the piston runs to the end of the path.
-Finally, press the dispensing button; the remaining liquid will be emptied into the bottle and
the digital burette will be totally washed. Place the return valve on the position 1 and the
washing will be finished.
Caution:
It is not recommended to remove and clean the digital burette barrel.
If the barrel cleaning operation fails to meet the cleaning
requirements of the user, please, contact the dealer.
Be sure to deliver the digital Burette without residual liquid and report
the details of the last liquid used.
1
2

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10.3. Filling and Dispensing valve replacements
In the box you will find 2 valve replacements (filling and dispensing valves) and a special tool to
substitute them in case of failure.
Use the Installation tools to disassemble the old valve and replace with the new one to the same
position.
Check section 11 "Solving small faults" to see which problems can occur while replacing the valves.
Before disassembling take these objections into account.
-Before disassembly make sure that the pipes have been removed.
-The dispensing valve is located at the connection of the burette body with the titration tube.
Dismantling is done by turning the valve counterclockwise.
-The dispensing valve is located at the connection of the burette body with the bottle.
Dismantling is done by turning the valve counterclockwise.
11. Trouble Shooting
 Piston overflows with liquid: Check that the piston is in good condition, piston wears off due to the
use. Contact with your dealer if necessary.
 Piston moves with difficulty: Piston or its parts are contaminated or damaged due to crystallization
and sedimentation of the titrated substances. Clean the barrel (section 10.2) or contact with your
dealer.

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 Failure to filling : If the liquid is transmitted to the titration tube automatically; the dispensing valve
could be contaminated or titration tip damaged. Replace filling valve or contact with your
provider.
 Bubbles in the instrument: Filling pipe could be loose or damaged, check if the filling pipe is
submerged into the liquid. If the bubbles persist the filling pipe could be damaged, contact with
your dealer.
 Dispensing volume is less than the volume displayed: It may be that the return duct is not installed
or that it is in poor condition, to solve this fault contact your dealer. Moreover, it is possible that
the filling valve is broken or damaged, to solve this fault replace the valve by the new one that
has been provided.
 No display: The battery level could be low or might be due to a connection fail, charge the
battery or check the USB cable connection.
12. Storage and transportation
Keep the equipment in a dry and clean place, with good ventilation and free of corrosive gases.
The recommended temperature is from 0 to 40ºC and the recommended humidity in a maximum
of 80%.
It is recommended that the battery is charged at least, every month and with a minimum of 50%
of the total battery.
During his transport, prevent the equipment from wetting and suffering shocks that could damage
the device.
13. Limitations and Compatibility
It is recommended to confirm reagent’s compatibility with this instrument before using:
The liquid path of your digital burette is made of borosilicate glass, FEP and PTFE. Do not use with
liquids such as hydrofluoric acid.
The instrument would be clogged or damaged by solid particles in turbid liquid like activated
carbon.
The plastic parts of your digital burette would be in swelling condition if concentrated acid and
alkaline, and methylbenzene, benzene and other nonpolar organic solvents are put into use.
Keep your digital burette away from the highly combustible carbon disulfide.
Digital burette cannot be autoclaved.
Do not put your digital burette in contact with corrosive gas like HCL smog.

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Compatibility (Max. Conc. 1 mol/L）
-Acetic acid
-Alcoholic potassium hydroxide solution
-Ammonium iron (II) sulfate solution
-Ammonium thiocyanate solution
-Barium chloride solution
-Bromide bromate solution
-Cerium (IV) sulfate solution
-EDTA solution
-Hydrochloric acid
-Hydrochloric acid in Acetone
-Iodine solution*
-Iodide Iodate solution*
-Iron (II) sulfate solution
-Nitric acid
-Oxalic acid solution
-Perchloric acid
-Perchloric acid in glacial acetic acid
-Potassium bromate solution
-Potassium bromate bromide solution
-Potassium dichromate solution
-Potassium hydroxide solution
-Potassium iodate solution
-Potassium permanganate solution*
-Potassium thiocyanate solution
-Silver nitrate solution*
-Sodium arsenite solution
-Sodium carbonate solution
-Sodium chloride solution
-Sodium hydroxide solution
-Sodium nitrite solution
-Sodium thiosulfate solution
-Sulfuric acid
-Tetra-n-butylammonium hydroxide sol.
-Triethanolamine in Acetone*
-Zinc sulfate solution