MICROLIT E-BURETTE User manual

Designed and Manufactured by MICROLIT
629, Pakramau, Kursi Road, Lucknow – 226026, UP, India
Call at: [phone], [phone]
For queries: [email protected]
For feedback: [e-mail]
www.microlit.com
OPERATION MANUAL
Motor Operated Burette with 3 Calibrated Pre-set Speeds

Intended Use of the Instrument
Product Specifications
Safety Instructions
Functions and Limitations of Use
Operating Exclusions
Storage Conditions
List of Recommended Reagents
First Steps
Initializing
Setting Up
Computer Connectivity
Operating the instrument
Data Transfer Setup
Error Limits
Calibration
Other Settings
Cleaning and Product Maintenance
Troubleshooting
Return for repair
Calibration Guidelines
Warranty
Disposal
1.
2.
3.
4.
5.
6.
7.
8.
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10.
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12.
13.
14.
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Intended Use of the Instrument
MICROLIT E-BURETTE is a state-of-the-art Motor Operated Burette
with sophisticated features and functionality. It is intended for use in
laboratories and the field for easy, safe and accurate titrations.
1. Safety Instructions
This instrument may sometimes be used for operations involving hazardous
materials and equipment. It is beyond the scope of this manual to address all
of the potential risks associated with its use in such applications.
It is the sole responsibility of the user to consult and establish appropriate
safety and health practices and determine the applicability of regulatory
limitations, prior to the usage of this instrument.
Please read the following instructions carefully.
Read and understand this Operation Manual thoroughly before
using the instrument.
Follow general and safety instructions for hazard prevention. E.g., always wear
protective clothing, protective gear for the eyes and hands.
Carefully observe the specifications provided by reagent manufacturers.
When dispensing inflammable fluids, avoid the built up of static charge.
Make sure that you do not dispense into plastic vessels and do not wipe the
instrument/equipment with a dry cloth.
Use the instrument only for dispensing liquids, with strict regard to the defined
limitations of use and operating constraints. (Refer to section 4)
Observe operating exclusions. When in doubt, contact the
manufacturer or supplier.
Always use the instrument in such a way that neither the user nor any other
person is in danger. While dispensing, the discharge tube must always
point away from you or any other person.
Only dispense into appropriate vessels and avoid splashes.
Do not press the piston when the discharge tube closure is attached.
Do not remove the discharge tube while the dispensing cylinder is being filled.
Reagents can accumulate in the cap of the discharge tube. Thus, clean it regularly.
Do not carry the mounted instrument by the cylinder sleeve or the valve block.
Breakage or loosening of the cylinder may lead to personal injury.
3.
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Product Specifications2.
21
Performance Data
Unit Type
Volume Ranges
Volume Accuracy
Operating Temperature
Microprocessor-controlled motorized piston lift system with
recirculation valve
0.005 ml - 99.99 ml
(Max piston lift 10 ml,
automatic addition)
A= 0.2%, CV = 0.07%
One complete battery charge gives 3 hours (approx.)
of continuous operation, (Battery capacity indicated on TFT display and
charging time 6.5 hrs.)
+10 °C to +40 °C (from 50 °F to 104 °F)
In compliance with DIN EN ISO 8655-3
4” TFT screen
Power Supply
Quality Control
Touchscreen
Mini USB Cable
Available in 4 languages (English, Spanish, German and French)
PC Interface
Languages
Battery Operation
18 V, 3 A
0.01 ml – 250 ml
(Max piston lift 25 ml,
automatic addition)
A = 0.2%, CV = 0.07%
0.01 ml – 500 ml
(Max piston lift 50 ml,
automatic addition)
A= 0.2%, CV = 0.07%
10 ml 25 ml 50 ml

Functions and Limitations of Use
MICROLIT E-BURETTE is designed for dispensing liquids directly from
the reservoir bottle. It is calibrated in accordance with the guidelines of the
DIN EN ISO 8655 – 3. When the instrument is correctly used, the dispensed
liquid comes into contact with only the following chemically resistant materials:
PTFE, FEP and Borosilicate glass.
CE Marking
This sign certifies that the product meets the requirements of the EC directive
and has been tested according to the specified test methods.
Physical Limits
MICROLIT E-BURETTE is designed for titrating liquids,
observing the following physical limits:
Maintain instrument and reagent between +10 °C to +40 °C (from 50 °F to 104 °F).
Maintain reagent vapor pressure up to 600 mbar (maximum).
Aspirate slowly above 300 mbar in order to prevent the liquid from boiling.
Kinematic viscosity upto 500 mm2/s.
(dynamic viscosity [mPas] = kinematic viscosity [mm2 /s] x density [g/cm³])
4.
A.
B.
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Use only original accessories and spare parts.
Do not attempt to make any technical alterations. Do not dismantle
the instrument any further than is described in the Operation Manual.
Always check the instrument for visual damage before use.
If there is any sign of a potential malfunction (e.g. piston difficult to move,
stuck valve or leakage), immediately stop dispensing.
Consult the 'Troubleshooting' section of this Operation Manual and contact the
manufacturer if needed. (Refer to section 18)
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Relative air humidity between 20% and 90%.
Use fluids with density upto 2.2 g/cm³.
Operating Limitations
Chlorinated and fluorinated hydrocarbons or chemical combinations which
form deposits may make it difficult for the piston to move or jam it.
If the piston becomes too difficult to move, immediately clean the instrument.
(Refer to section 17)
While dispensing inflammable fluids, avoid the built up of static charge.
Make sure that you do not dispense into plastic vessels and do not wipe
instruments with a dry cloth.
MICROLIT E-BURETTE is designed for general laboratory applications and
complies with relevant standards, like DIN EN ISO 8655-3.
Please check the compatibility of the instrument for a specific application
(e.g. trace material analysis, food sector etc.).
Approvals for specific applications, like production and administration of food,
pharmaceuticals and cosmetics are not available.
Operating Exclusions
Do not use the instrument with:
Liquids that attack FEP, PFA and PTFE (e.g. dissolved Sodium Azide*).
Liquids that attack borosilicate glass (e.g. Hydrofluoric acid).
Hydrochloric acid > 40% and Nitric acid >70%.
Tetrahydrofuran or Oxolane.
Trifluoroacetic acid.
Explosive liquids (e.g. Carbon Disulfide).
Suspensions (e.g. of charcoal) as the solid particles may clog or
damage the instrument.
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C.
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5.
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65
Liquids that attack PP (cap).
An aggressive atmosphere, e.g. HCl fumes.
* The permissible concentration of dissolved Sodium Azide is not more than 0.1%.
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Storage Conditions
Store the instrument and accessories in a clean, cool and dry place.
Storage temperature from –20 °C to +50 °C (from –4 °F to 122 °F)
is advised with relative humidity between 5% and 95%.
6.
List of Recommended Reagents
Chemicals from A to Z
The following tables enlist the most frequently used reagents.
They provide useful information for the safe and efficient use of
MICROLIT E-BURETTE. All the safety precautions and recommendations
within this Operation Manual must be followed carefully.
Code explanations
A = Good resistance
B = Acceptable with limitations
C = Not recommended
1 = Acid vapours (better resistance with lower concentration).
Do not leave the instrument on the bottle.
Rinse with distilled water after use.
2 = Risk of damage, softening or discoloration of external parts through vapours.
Do not leave the instrument on the bottle.
Rinse with distilled water after use.
3 = Chemical degradation of glass parts (plunger/barrel)
7.

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List of Reagents
Butyric acid
A
A
B/2
B/2
B/2
A
B/2
B/2
A
A
B/2
A
A
A
A
B/2
B/2
A
A
A
A
A
B/2
A
A
B/2
A
A
B/2
A
B/2
A
B/2
B/2
A
C/2
B/2
A
A
A
B/2
B/2
B/2
B/2
A
A
A
A
List of Reagents
Dimethylacetamide
Covi-Ox-T70/ Mixed Tocopherol
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/1/2
B/1/2
C/1/2
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
(Trichloromethane)

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List of Reagents
Methyl ethyl ketone (MEK/Butanone)
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/1
C/3
C/2
C/2
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
List of Reagents
Oleum (Fuming Sulfuric acid)
Potassium dihydrogen phosphate
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2Picric acid
C/2
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A

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Cap
Window
4” TFT Screen
Nozzle Cover
Delivery Tube
Delivery Nozzle
Middle Housing
Adapter
Retainer Ring
Telescopic Tube
Recirculation Valve
Reservoir BottleBeakerPanel
Stylus
Chuck Nut
11
List of Reagents
P
B/2
Triethylamine
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
B/2
Sulfuric acid <10%
Sulfuric acid (10-75%)
Sulfuric acid (Cold conc.)
Sulfuric acid (Hot conc.)
A
B/1
A
B/2
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A

13
First Steps
First and foremost – check whether everything is there in the package.
Verify that the package includes:
Operation Manual
10, 25 or 50 ml MICROLIT E-BURETTE
(Fig. 8.1)
Control Panel
(Fig. 8.2)
Telescopic Tube
(Fig. 8.3)
8.
1.
2.
3.
4.
Fig. 8.1Fig. 8.2Fig. 8.3
14
Bottle Adapters (28, 32, 38, 40, 45 mm)
(Fig. 8.4)
USB Drive for software & driver
(Fig. 8.7)
Charging AC Adaptor
(Fig. 8.5)
Control Panel Stylus
(Fig. 8.6)
5.
6.
7.
8.
Fig. 8.4Fig. 8.5Fig. 8.6Fig. 8.7

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Mini USB Cable
(Fig. 8.8)
14.4 V, 2000 mAh Li-ion Rechargeable Batteries
(Fig. 8.11)
Extra Amber Coloured Windows
(Fig. 8.9)
Calibration Certificate
(Fig. 8.10)
9.
10.
11.
12.
Fig. 8.8Fig. 8.9Fig. 8.10Fig. 8.11
Initializing
Wear protective clothing, protective gear for the eyes and hands.
Follow all safety instructions and observe limitations of use and
operating constraints. (Refer to section 4 and 5)
Connecting the batteries
Open the battery panel at the back
of the control panel.
(Fig. 9.1)
Connect the batteries to the panel wire by inserting
the battery connector into the panel connector firmly.
It locks with a ‘click’ sound.
(Fig. 9.2)
Close the panel
(Fig. 9.3)
9.
1.
2.
3.
Fig. 9.1Fig. 9.2Fig. 9.3
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