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Right from the design of a product to its delivery, we make sure that every step is carried out keeping you, the user, in mind. You are at the heart of our organisation. We are constantly striving for excellent customer service and support with the help of our service suite which includes information related to training, repair/recalibration, remote support, warranties and answering the most frequently asked product related questions.

Microlit Product FAQ’s

Microlit Ultimus – Bottle Top Dispenser With Dual Inlet Technology

Problem

Piston difficult to move

Possible Cause

Formation of crystals or deposition of dirt.

Solution

Stop dispensing immediately. Loosen piston in circular motion, but do not disassemble. Follow the cleaning instructions as specified in the Operation Manual.

Problem

Air bubbles appear in the instrument.

Possible Cause

Reagent with high vapour pressure has been drawn in too quickly.

Solution

Draw the reagent slowly.

Possible Cause

The instrument has not been primed.

Solution

Prime the instrument as specified in the Operation Manual.

Possible Cause

Filling tube is loose or damaged.

Solution

Press the filling tube firmly if necessary, cut off approx. 1 cm of the tube at the upper end and then reconnect it or replace it.

Possible Cause

The filling action is too fast.

Solution

Fill and dispense slowly.

Possible Cause

The piston is leaking.

Solution

Clean the piston as specified in the Operation Manual. If problem persists, replace it.

Possible Cause

The discharge valve is leaking.

Solution

Clean by flushing thoroughly with distilled water as specified in the Operation Manual.

Problem

Dispensing not possible

Possible Cause

Dispensing nozzle is blocked.

Solution

Disassemble the dispensing nozzle and flush thoroughly with distilled water.

Possible Cause

The instrument has not been primed.

Solution

Prime the instrument as specified in the Operation Manual.

Possible Cause

Discharge valve is stuck.

Solution

Clean the unit by immersing valve assembly in distilled water as specified in the Operation Manual.

Possible Cause

Recirculation knob is rotated in the wrong direction and the knob has popped out.

Solution

Set the recirculation knob in the dispense mode and press the knob firmly to ensure it is tightly fitted.

Problem

No aspiration from second inlet.

Possible Cause

Second inlet tube is not properly connected.

Solution

Unscrew the second inlet tube and reassemble as per the instructions specified in the Operation Manual.

Possible Cause

Second inlet knob is rotated in the wrong direction and the knob has popped out.

Solution

Set the knob in the second inlet aspiration mode and press the knob firmly to ensure it is tightly fitted.

Problem

Wrong dispensing volume.

Possible Cause

The instrument is not calibrated.

Solution

Follow user calibration steps as specified in the Operation Manual.

Possible Cause

Crack in the cylinder barrel due to an accident can cause leakage.

Solution

Do not try to repair. Contact the nearest dealer or manufacturer.

Problem

Barrel does not fill with liquid.

Possible Cause

Inlet tube is not fitted firmly.

Solution

Connect inlet tube correctly as specified in the Operation Manual.

Problem

Filling not possible

Possible Cause

Valve ball is stuck in the seat.

Solution

Mount the dispenser on a distilled water bottle. Put your thumb on the delivery nozzle or close the cap. Now fill the dispenser. Once the liquid fills up, remove your thumb/cap. If this does not work, then use a pointed instrument like a pipette tip to press and release the ball from the valve.

Problem

Auto-dripping (plunger comes down on its own without applying manual force for dispensing).

Possible Cause

Incorrect method of autoclaving causes the piston to become loose.

Solution

Follow the autoclaving instructions as specified in the Operation Manual. To tighten the piston, follow the disassembly instructions. After that, tighten the piston by rotating clockwise and reassemble. Make sure that the piston is not overtight as that can break the glass barrel.

MICROLIT BEATUS – Bottle Top Dispenser with Recirculation Valve

Problem

Piston difficult to move

Possible Cause

Formation of crystals or deposition of dirt.

Solution

Stop dispensing immediately. Loosen piston in circular motion, but do not disassemble. Follow the cleaning instructions as specified in the Operation Manual.

Problem

Air bubbles appear in the instrument.

Possible Cause

Reagent with high vapour pressure has been drawn in too quickly.

Solution

Draw the reagent slowly.

Possible Cause

The instrument has not been primed.

Solution

Prime the instrument as specified in the Operation Manual.

Possible Cause

Filling tube is loose or damaged.

Solution

Press the filling tube firmly if necessary, cut off approx. 1 cm of the tube at the upper end and then reconnect it or replace it.

Possible Cause

The filling action is too fast.

Solution

Fill and dispense slowly.

Possible Cause

The piston is leaking.

Solution

Clean the piston as specified in the Operation Manual. If problem persists, replace it.

Possible Cause

The discharge valve is leaking.

Solution

Clean by flushing thoroughly with distilled water as specified in the Operation Manual.

Problem

Dispensing not possible

Possible Cause

Dispensing nozzle is blocked.

Solution

Disassemble the dispensing nozzle and flush thoroughly with distilled water.

Possible Cause

The instrument has not been primed.

Solution

Prime the instrument as specified in the Operation Manual.

Possible Cause

Discharge valve is stuck.

Solution

Clean the unit by immersing valve assembly in distilled water as specified in the Operation Manual.

Possible Cause

Recirculation knob is rotated in the wrong direction and the knob has popped out.

Solution

Set the recirculation knob in the dispense mode and press the knob firmly to ensure it is tightly fitted.

Problem

Wrong dispensing volume.

Possible Cause

The instrument is not calibrated.

Solution

Follow user calibration steps as specified in the Operation Manual.

Possible Cause

Crack in the cylinder barrel due to an accident can cause leakage.

Solution

Do not try to repair. Contact the nearest dealer or manufacturer.

Problem

Barrel does not fill with liquid.

Possible Cause

Inlet tube is not fitted firmly.

Solution

Connect inlet tube correctly as specified in the Operation Manual.

Problem

Filling not possible

Possible Cause

Valve ball is stuck in the seat.

Solution

Mount the dispenser on a distilled water bottle. Put your thumb on the delivery nozzle or close the cap. Now fill the dispenser. Once the liquid fills up, remove your thumb/cap. (Pic) If this does not work, then use a pointed instrument like a pipette tip to press and release the ball from the valve. (Pic)

Problem

Auto-dripping (plunger comes down on its own without applying manual force for dispensing).

Possible Cause

Incorrect method of autoclaving causes the piston to become loose.

Solution

Follow the autoclaving instructions as specified in the Operation Manual. To tighten the piston, follow the disassembly instructions. After that, tighten the piston by rotating clockwise and reassemble. Make sure that the piston is not overtight as that can break the glass barrel.

MICROLIT SCITUS – Bottle Top Dispenser with Springless Valve

Problem

Piston difficult to move

Possible Cause

Formation of crystals or deposition of dirt.

Solution

Stop dispensing immediately. Loosen piston in circular motion, but do not disassemble. Follow the cleaning instructions as specified in the Operation Manual.

Problem

Air bubbles appear in the instrument.

Possible Cause

Reagent with high vapour pressure has been drawn in too quickly.

Solution

Draw the reagent slowly.

Possible Cause

The instrument has not been primed.

Solution

Prime the instrument as specified in the Operation Manual.

Possible Cause

Filling tube is loose or damaged.

Solution

Press the filling tube firmly if necessary, cut off approx. 1 cm of the tube at the upper end and then reconnect it or replace it.

Possible Cause

The filling action is too fast.

Solution

Fill and dispense slowly.

Possible Cause

The piston is leaking.

Solution

Clean the piston as specified in the Operation Manual. If problem persists, replace it.

Possible Cause

The discharge valve is leaking.

Solution

Clean by flushing thoroughly with distilled water as specified in the Operation Manual.

Problem

Dispensing not possible

Possible Cause

Dispensing nozzle is blocked.

Solution

Disassemble the dispensing nozzle and flush thoroughly with distilled water.

Possible Cause

Discharge valve is stuck.

Solution

Clean the unit by immersing valve assembly in distilled water as specified in the Operation Manual.

Problem

Wrong dispensing volume.

Possible Cause

The instrument is not calibrated.

Solution

Follow user calibration steps as specified in the Operation Manual.

Possible Cause

Crack in the cylinder barrel due to an accident can cause leakage.

Solution

Do not try to repair. Contact the nearest dealer or manufacturer.

Problem

Barrel does not fill with liquid.

Possible Cause

Inlet tube is not fitted firmly.

Solution

Connect inlet tube correctly as specified in the Operation Manual.

Problem

Auto-dripping (plunger comes down on its own without applying manual force for dispensing).

Possible Cause

Incorrect method of autoclaving causes the piston to become loose.

Solution

Follow the autoclaving instructions as specified in the Operation Manual. To tighten the piston, follow the disassembly instructions. After that, tighten the piston by rotating clockwise and reassemble. Make sure that the piston is not overtight as that can break the glass barrel.

MICROLIT LENTUS – Bottle Top Dispenser for Hydrofluoric Acid, High-purity Media and Acids & Bases for Trace Analysis

Problem

Piston difficult to move

Possible Cause

Formation of crystals or deposition of dirt.

Solution

Stop dispensing immediately. Loosen piston in circular motion, but do not disassemble. Follow the cleaning instructions as specified in the Operation Manual.

Problem

Air bubbles appear in the instrument.

Possible Cause

Reagent with high vapour pressure has been drawn in too quickly.

Solution

Draw the reagent slowly.

Possible Cause

The instrument has not been primed.

Solution

Prime the instrument as specified in the Operation Manual.

Possible Cause

Filling tube is loose or damaged.

Solution

Press the filling tube firmly if necessary, cut off approx. 1 cm of the tube at the upper end and then reconnect it or replace it.

Possible Cause

The filling action is too fast.

Solution

Fill and dispense slowly.

Possible Cause

The piston is leaking.

Solution

Clean the piston as specified in the Operation Manual. If problem persists, replace it.

Possible Cause

The discharge valve is leaking.

Solution

Clean by flushing thoroughly with distilled water as specified in the Operation Manual.

Problem

Dispensing not possible

Possible Cause

Dispensing nozzle is blocked.

Solution

Disassemble the dispensing nozzle and flush thoroughly with distilled water.

Possible Cause

The instrument has not been primed.

Solution

Prime the instrument as specified in the Operation Manual.

Possible Cause

Discharge valve is stuck.

Solution

Clean the unit by immersing valve assembly in distilled water as specified in the Operation Manual.

Possible Cause

Recirculation knob is rotated in the wrong direction and the knob has popped out.

Solution

Set the recirculation knob in the dispense mode and press the knob firmly to ensure it is tightly fitted.

Problem

Wrong dispensing volume.

Possible Cause

The instrument is not calibrated.

Solution

Follow user calibration steps as specified in the Operation Manual.

Possible Cause

Crack in the cylinder barrel due to an accident can cause leakage.

Solution

Do not try to repair. Contact the nearest dealer or manufacturer.

Problem

Barrel does not fill with liquid.

Possible Cause

Inlet tube is not fitted firmly.

Solution

Connect inlet tube correctly as specified in the Operation Manual.

Problem

Filling not possible

Possible Cause

Valve ball is stuck in the seat.

Solution

Mount the dispenser on a distilled water bottle. Put your thumb on the delivery nozzle or close the cap. Now fill the dispenser. Once the liquid fills up, remove your thumb/cap. (Pic) If this does not work, then use a pointed instrument like a pipette tip to press and release the ball from the valve. (Pic)

Problem

Auto-dripping (plunger comes down on its own without applying manual force for dispensing).

Possible Cause

Incorrect method of autoclaving causes the piston to become loose.

Solution

Follow the autoclaving instructions as specified in the Operation Manual. To tighten the piston, follow the disassembly instructions. After that, tighten the piston by rotating clockwise and reassemble. Make sure that the piston is not overtight as that can break the glass barrel.

MICROLIT E-BURETTE – Electronic Burette with 3 Calibrated Pre-set Speeds

Problem

Piston difficult to move

Possible Cause

Formation of crystals or deposition of dirt.

Solution

Perform a cleaning cycle.

Problem

Filling not possible

Possible Cause

Filling valve stuck.

Solution

Clean the filling valve. If the valve ball is stuck, use a 200 µl plastic tip to loosen it.

Problem

Air bubbles appear in the instrument.

Possible Cause

Purging not complete

Solution

Purge the instrument again.

Possible Cause

Filling tube loose or damaged.

Solution

Fasten the telescopic filling tube firmly. If necessary, cut the tube off by approx. 1 cm from the top or replace it.

Possible Cause

Filling tube does not dip into the liquid

Solution

Fill up the bottle, or correctly adjust the length of the telescopic filling tube.

Problem

The volume delivered is smaller than that indicated

Possible Cause

The instrument has not been completely primed.

Solution

Prime the instrument again.

Problem

The instrument doesn’t indicate any function

Possible Cause

Internal error

Solution

Perform a restart.

MICROLIT EASYFILL – Electronic Pipette Filling Device

Problem

Liquid drips from the pipette.

Possible Cause

Pipette is not firmly fixed.

Solution

Recheck the fitting.

Possible Cause

There is leakage in the collet assembly.

Solution

Ensure that the collet has been rightly fixed.

Possible Cause

There is leakage from the inside connections.

Solution

Send the instrument to your nearest dealer or manufacturer.

Problem

Pump is not working.

Possible Cause

Battery is discharged.

Solution

Charge the battery.

Possible Cause

Connection is broken.

Solution

Send the instrument to the nearest dealer or manufacturer.

Possible Cause

Speed controller is set to its lowest position.

Solution

Adjust the speed controller.

Problem

Speed cannot be set.

Possible Cause

Speed adjustment wheel is broken.

Solution

Do not try to repair. Contact the nearest dealer or manufacturer.

MICROLIT RBO- Single Channel Micropipette

Problem

Liquid is leaking from pipette tip.

Possible Cause

Pipette tip does not fit properly onto the tip cone.

Solution

Use the appropriate tip for exact tip fitment.

Possible Cause

Liquid being pipetted is hot or cold. Liquid being pipetted is very dense or viscous.

Solution

Shorten the amount of time the liquid is in the tip, or the possible solution is to use the reverse mode of pipetting.

Possible Cause

Pipette sealing O ring is worn.

Solution

Replace the sealing O ring.

Possible Cause

Tip is not loaded to maintain the seal.

Solution

Press on tip more firmly. (Avoid using too much force and over inserting the tip.)

Problem

Amount of sample delivered is not accurate.

Possible Cause

Pipette is not within calibration specifications.

Solution

Re-calibrate the pipette as per the operation manual.

Possible Cause

Improper pipetting technique.

Solution

See suggestions for improving pipetting technique and results.

MICROLIT RBO- Multi Channel Micropipette

Problem

Liquid is leaking from pipette tip.

Possible Cause

Pipette tip does not fit properly onto the tip cone.

Solution

Use the appropriate tip for exact tip fitment.

Possible Cause

Liquid being pipetted is hot or cold. Liquid being pipetted is very dense or viscous.

Solution

Shorten the amount of time the liquid is in the tip, or the possible solution is to use the reverse mode of pipetting.

Possible Cause

Foreign particles between tip and tip cone.

Solution

Clean the tip cone with a lint free cloth and attach new tips.

Possible Cause

Tip is not loaded to maintain the seal.

Solution

Press on tip more firmly. (Avoid using too much force and over inserting the tip.)

Problem

Amount of sample delivered is not accurate.

Possible Cause

Pipette is not within calibration specifications.

Solution

Re-calibrate the pipette as per the operation manual.

Possible Cause

Improper pipetting technique.

Solution

See suggestions for improving pipetting technique and results.

  • Training

    Microlit Academy – learn from the industry’s best

    Learn how to make the best and the most effective use of our high precision liquid handling instruments at the Microlit Academy.

    • Get hands-on training by experienced professionals.
    • Become a ‘MICROLIT Certified Operator’ or ‘MICROLIT Certified Calibrator’.
    • Get access to our huge knowledge repository.
    Interested?

    Get in touch with us for more details.

  • REPAIR & RECALIBRATE
    Get your equipment repaired and recalibrated at your convenience

    If you’ve been using liquid handling instruments for a long period of time, bring them to us for recalibration. In addition, we also provide repairs against mechanical damages.

    • Get zero-cost product examination to assess the degree of damage / aging.
    • Repair and recalibration done by experienced technical experts.
    • Take better care of your equipment with our free tips and tricks.
    Interested?

    Get in touch with us for more details.

  • REMOTE SUPPORT
    Always at your service

    At Microlit, we are available at your service with our advice, assistance and consultation, as and when you need it.

    • Get 24*7, zero-cost consultation from our highly trained staff of specialists.
    • Approach us with all kinds of questions, doubts, queries or even feedback and get holistic support.
    Interested?

    Get in touch with us for more details.

  • WARRANTY
    Enjoy extended warranties across our product range

    As a part of our periodic offers, we offer extended warranties on our products, thereby facilitating enhanced user reliance and peace of mind.

    • Time and again, we selectively offer extended warranties across our product range.
    • Warranties generally last for the time period specified on product packaging.
    Interested?

    Get in touch with us for more details.

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