MRC DPETTE Series User manual

3, Hagavish st. Israel 58817 Tel: [phone], Fax: [phone]
[e-mail]
Simple Electronic Pipette
User Manual
DPETTE-SERIE
PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION
27.4.23

CONTENTS
1. PRODUCT OVERVIEW....................................................................................1
2. PARTS DESCRIPTION.....................................................................................3
3. DISPLAY...........................................................................................................5
4. OPERATION..................................................................................................... 6
5. STORAGE ...................................................................................................... 11
6. CARE AND MAINTENANCE .......................................................................... 11
7. CALIBRATION AND PERFORMANCE TESTS ............................................... 16
8. TROUBLESHOOTING GUIDE........................................................................17
9. WARRANTY ...................................................................................................19
10. ACCESSORY ...............................................................................................19

1
1. Product Overview
Aversatile, motor-driven pipetting instrument, delivers accurate and precise
performance in liquid handling. Its design and operation is based on the principle
of air displacement and use disposable pipette tips. Frequency,Voltage：5W/4.2V
It has been tested according to ISO8655 quality management standards. In
compliance with the quality control requirements of ISO8655-6 / DIN 12650, each
and every pipette, fitted with original tip of the manufacturer, has been tested for
gravity with distilled water (DIN / ISO3696, grade 3) at 22℃.
1.1 Specifications
It covers a wide range of volume: 0.5 - 10μL；5 - 50 μL ；30 - 300μL ；100 - 1000μL
Channels
Volume Range
Increment
Tips
1
0.5
- 10μL
0.01μ
L
10
1
5
- 50 μL
0.1μ
L
200;300;350μ
L
1
30
- 300μL
1μ
L
300;350μ
L
1
100
- 1000μL
5μ
L
1000μ
L

2
1.2 Pipette Tip
It is compatible with most universal tip brands covering full volume range.
Note! Never use the pipette without a tip attached.
Contents of Package Include:
Electronic pipette X 1
AC Adapter X 1
USB cable X 1
Stand X 1
User manual X 1
Calibration card (ISO8655-6/DIN12605) X 1

3
2. Parts Description

4
Reset Slot
Poke here with a pointed
tool to restart the pipette
USB-charging Port
Fully charge in approximate
4 hours.
Stand Charging Port
Fully charge in approximate
4 hours.

5
3. Display
Aspiration
status
Battery
Indicator Volume Range
Dispensing
status

6
4. Operation
4.1 Power On
Press the Parameter Knob or about 2 seconds.
4.2 Volume Setting
①Fast turn the Parameter Knob.
②Volume parameter to be blinking.

7
③
Turn the Parameter Knob anticlockwise to
increase, turn clockwise to decrease.
Press Parameter Knob to confirm.
Note!
Do volume range setup in Aspiration
mode only.
4.3 Aspiration
When upward arrow blinks, press Parameter
Knob for Aspiration.

8
4.4 Dispensing
When downward arrow blinks, press Parameter
Knob for dispensing.
4.5 Mixing
Press Parameter Knob
until mixing activity begins.
Then release the Parameter Knob at any time during
the process of mixing will exit the mixing mode.
Note! Take the operation (100-1000μL) for the purpose of illustration.

9
Three mixing volume modes：
①If the pipetting volume is set larger than 30% of the total volume range, 30% of
the maximum volume of the pipette will be mixed.
e.g. set volume: 700μL
actual mixing volume: 300μL
②If the pipetting volume is set less than 30% of the total volume range, and more
than its minimum volume range, 50% of the set volume will be mixed. e.g. set
volume: 270μL
actual mixing volume: 135μL
③If 50% of the set volume is less than the minimum volume range, the minimum
volume will be mixed. e.g. set volume: 150μL
actual mixing volume: 100μL

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4.6. Speed adjustment
Turn Function wheel right or left for speed settings.
Turn black function wheel right or left to select
resorption delay speed.
1. Choose dl interface to adjust resorption delay speed: Turn white knob left and
right to choose the delay time from 0.2s-2s, then press white knob to confirm.
2.Choose SP interface to adjust aspiration or dispensing
speed:
Turn white knob left and right to choose 1/2/3 speed, then press white knob to
confirm.
Double press of White Parameter Knob at any time can exit the settings.
three as
piration or dispensing speeds:
Speed 1:
2.5s;Speed 2:1.6s;Speed 3:1.1s

11
4.7 Power off
The Electronic pipette will power off automatically after 8minites when stop use.
5. Storage
①Recommend storing electronic pipette on the stand in vertical position when not
in use.
②Please every month to charging if being unused in long time , make sure there
are 50% power in battery at least.
③During storage periods at constant temperature and humidity, the recommended
temperature range is from 0-40 and humidity no more than 80%.
6. Care and Maintenance
By cleaning your electronic pipette before and after each use, tip connector in
particular, its functionality and performance can be ensured.

12
Note! Check the performance of the pipette every three months. Performance test
is recommended to be carried out after each in-house care and maintenance.
6.1 Cleaning the Outer Surface
Spay the outer surface with a dedicated pipette detergent or 75% ethanol. Wipe
with lint-free cloth.
Note! Please consult with your nearest distributor for the cleaning with other
detergent or liquids.
ANY WARRANTY WILL, HOWEVER, BE DEEMED AS VOID IF THE FAULT IS
FOUND TO HAVE BEEN CAUSED BY UNAUTHORIZED CLEANING.
6.2 Sterilizing the Inner Parts
The entire body of the electronic pipette cannot be autoclaved. The autoclavable
parts include:

13
Note! The unidentified parts can never be autoclaved or disassembled prior to
authorization.
6.3 Disassembly Procedures
①
Unscrew the tip ejector collar
anticlockwise and remove it.
NOTE! THIS PART CANNOT
BE AUTOCLAVED

14
②Remove the ejector spring. Unscrew the
piston cover anticlockwise and remove it.
③Separate the seal gasket and O ring from
piston cover.
NOTE! MINOR PARTS FOR
SAFE KEEPING PLEASE.

15
④Separate the remaining piston from
piston spring.
⑤Clean the above-mentioned parts with 75% ethanol, or sterilize the parts at 121 ,
1 bar overpressure for 20 minutes.
⑥Apply an appropriate layer of silicone grease to the O ring, seal gasket and piston.
Reassembling.
Note!
①After autoclaving and reassembling, leave it to rest for 12 hours before reuse.
②Calibration is needed after each inner-part sterilization. For more information,
please refer to section ”Calibration and Performance Tests”.

16
7. Calibration and Performance Tests
Calibration should take place at 20-25℃, kept constant within ±0.5℃. A dedicated
calibration software will write calibration values in your electronic pipette, after the
distilled water has been repeatedly weighed at least five times.
Hardware needed:
Electronic balance with readability of 0.01 mg
Distilled water
Pipette tip in compatible with the volume range
X86 or X64 architecture PC pre-loaded with Windows (XP/Vista / 7/8/10
operating system
Software needed:
Dedicated calibration software (For more information, please contact with your
nearest distributor)
Drive program
Note! If your electronic pipette cannot work properly after calibration, please contact
your nearest distributor for assistance.

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8. Troubleshooting Guide
Problem
Possible cause
Solution
Remaining
droplets
Incompatible tip
Use original tip
Plastic self
-
lubrication of the tip is not
even
Leakage or
inadequate
aspiration
Tip is loose
Attach the tip firmly
Foreign objects between tip and
connector
Clean the tip cone and
replace the tip
Pipette is contaminated
Clean and grease O ring,
piston and clean tip cone
Inadequate application of silicone
grease to piston or O ring
Apply silicone grease
O ring and piston is unlocked or broken
Replace O ring
Inappropriate operation
Follow the instructions in the
User Manual

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Problem
Possible cause
Solution
Leakage or
inadequate
aspiration
Calibration needed or huge difference
of density compared with water
Recalibrate according to the
instructions in the User
Manual
Pipette is broken
Send the pipette for service
Inadequate
aspiration
due
to jammed
liquids leak into the tip connector and
dry.
Clean and grease O ring
and piston; clean tip cone
ejector is
jammed or
cannot work
properly
Tip connector and ejector are
contaminated
Clean tip connector and
ejector