New Pipettors with Active Brake

Transcription

TN-BF-013 BIO-FLASH Technical Note
Upgrade to Pipettors with Active Brake
BIO-FLASH®
Revision History
Revision A
Revision B
Initial Release of the note
Added: - PRE-INSTALLATION PAWL INSPECTION PROCEDURE
- WASHER INSTALLATION PROCEDURE
New Pipettors with Active Brake - UPGRADE KIT INSTRUCTIONS
For technical service use only.
A redesigned Pipettor brake mechanism has been made available in order to overcome the
limitations of the Haydon nut in certain environments. The Haydon nut back-off procedure solves
any problems related to the stalls of the arms. This UPGRADE is not mandatory but highly
recommended
Warning: It is mandatory that all materials be read and understood completely before starting any
upgrade.
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CONTENTS of the UPGRADE KIT
The kit comes in a box with the following label
In the box the following items will be found
Accessories box
Sample Pipettor
Reagent Pipettor
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In the accessories box you will find 6 different plastic bags that are described below with the part
numbers are:
BAG #1
Tie wrap mount.
Plastic stickers for cable routing into the unit
BAG #2
P-clamp and associated screws
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BAG #3
Reagent Carousel Cable Holder Bracket (M/C: 011-00604ADF Rev D)
Metal bracket and spare plastic clamp.
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BAG #4
Assorted plastic ties (short and long)
BAG #5
Sample Pipettor Override Switch (0009803290)
Reagent Pipettor Override Switch (0009803291)
Jumper cable (0009803289)
Active brake power cable (0009803292)
Cable set to be used.
BAG #6
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Sample Pipettor Active brake PCB (0009803288)
(comes with Sample/Reagent Pipettor Active Brake PCB support installed)
Reagent Pipettor Active brake PCB (0009803287)
(comes with Sample/Reagent Pipettor Active Brake PCB support installed)
REQUIRED TOOLS








Allen keys (M5, M4 and M3).
Torque tools (adjustments for 23 in-lbs and 100 in-lbs are needed)
Alcohol
Light
Tweezers
Cutter
Pipettor Arm Wrench (0009803302)
Pipettor Arm Tool (0009803304)
The unit must be accessed from the front and back, so make sure the instrument is on top of a
bench with 360º accessibility.
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PIPETTORS UNPACKING
Pipettors descriptions and part numbers are:
SAMPLE PIPETTOR ASSY (W/BRAKE) (0009803286)
REAGENT PIPETTOR ASSY (W/BRAKE) (0009803285)
Unpacking and handling instructions:
Place the Pipettor on the packaging top foam until needed. See picture below.
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Caution: GOOD SAFETY PRACTICES
•
•
•
•
Wear lab coat and gloves during the upgrade.
Clean the instrument surface before working on the unit with a 10% bleach solution.
Before starting the UPGRADE make sure you have an area where you will be able to
place all the components removed from the system.
Before starting the installation make sure you understand the active brake blocking
mechanism and the way to override it manually. You must to override the Pipettors
manually during the installation to see if there is any cable interference with other
components in the system.
MANUAL OVERRIDE of the BLOCKING MECHANISM
With a finger touching the active brake pawl and moving it clockwise you are able to
unblock the Z movement of the arm. Familiarize yourself with it before starting. You can
manually move the Pipettor up at any time. However, once in the up position the only way
to make it go down is overriding the active brake solenoid manually as previously described.
Familiarize yourself with the manual override of the blocking mechanism as shown below
Override direction
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Pawl at the blocking position
When moving the base of the pawl in the direction of the yellow arrow, the tip of the pawl
will move in the direction of the green arrow.
Practice the movement with the Pipettors out of the unit in order to familiarize yourself
with the override action.
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PRE-INSTALLATION PAWL INSPECTION PROCEDURE
After the releasing of the kits it was detected in manufacturing a potential problem due to
tolerance of the pawl mounting screws. The following procedure describes how to inspect the
pawls in order to detect out of tolerance screws that could compromise the functioning of the
active brake mechanism or the Pipettor Z movement.
2
3
5
4
1
Check each pawl for the M2.5 mounting screws extending above the mounting plate of the
solenoid. If they extend above the plate then removal of the Pawl and insertion of M2.5 flat washer
between the Brake Pawl and the mounting plate of the solenoid has to be done.
The image above shows already the spacing M2.5 washers in place, this is not the case in the
released upgrade kits. The numbers listed below describe the numbered boxes in the drawing
above.
1. M2.5 Flat washer installed
2. M2.5 Lock washer installed
3. Solenoid Mounting Plate
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4. Active Brake Pawl
5. M2.5 x5 SHCS stainless steel
NOTE: Contact the instrument provider to supply the M2.5 washers to do this installation.
Detail of the area to inspect
The yellow squared area has to be free of any screw tip. In the picture can be seen only the
bearings that allow a smooth rotation of the pawl. Because this picture corresponds to a pawl with
washers in place, the screws do not stand above the pawl support and no screw end appears in the
yellow squared area.
Note- In the case you need to correct the pawls installation, with the addition of the lock washer
there is no need to apply any thread locker to the mounting screw.
The next section is a step by step guide on how to install the washers in case they are necessary.
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Both Pipettors have to be inspected in order to detect if the washer modification of
the pawls is necessary to be carried out. Not doing so will compromise the
performance of the Pipettors and might require a further intervention upon the
unit to correct this.
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WASHER INSTALLATION PROCEDURE
Place robot on an appropriate surface
Loosen all three screws until only a couple threads are engaged. Separation between Pawl and
solenoid mounting plate (first screw removed)
You should be able to see approximately 3 mm space between the Pawl and the Solenoid Mounting
Plate.
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Remove one screw and place a 2.5 mm lock washer on it
This will be done for all three screws used to attach the Pawl to the Solenoid Mounting Plate
Place the M2.5 flat washer between the Pawl and the Solenoid mounting plate and insert the M2.5
screw with lock washer. Do not fully seat the mounting screw.
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Remove the next screw- and install M2.5 lock washer- Place the M2.5 flat washer between the
Pawl and the Solenoid mounting plate. Install the M2.5 screw with lock washer –repeat the steps
for each screw.
Seat / tighten all three Pawl mounting screws. Confirm all the M2.5 Flat washers are in place
between the Pawl and the Solenoid Mounting Plate and each mounting screw has a M2.5 Lock
washer between the head of the screw and the Pawl.
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Rotate the pawl and release-confirm no binding or stopping. Confirm the tip of the Brake Pawl is
seated in the groove of the Pulley.
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UPGRADE PROCEDURE
1. Perform an Empty Lines.
2. Remove all reagent cartridges and place them in a 2 – 6°C refrigerator.
3. Remove the reagent basket.
4. Power-off the instrument and remove power cord.
5. Remove Sample arm cover and Reagent arm cover.
6. Remove instrument covers (Refer to Service Manual Chapter 7).
NOTE: Keep the covers in a secure place to avoid damaging them. The area surrounding the
instrument should be as clear as possible to avoid problems while working on the
instrument.
7. Remove the Pipettor probes and keep them in a safe place, this will avoid any damage
of the probes during the upgrade process (refer to Service Manual Chapters 9-1 (Reagent)
and 10-1 (Sample)).
NOTE: If you did not perform an Empty Lines, then disconnecting the tubes will spill system
rinse upon the level sense board or the instrument. Remove the lines carefully with the aid
of absorbent paper or fabric. Before disconnecting the tubing, place the probes above the
corresponding wash towers in order to collect any drops from them.
Warning: DO NOT MIX PROBES!!!! Clearly identify them in order to place them back to
their original Pipettor. See example below of labeling to differentiate them (a simple color
tape is used in the example).
SAMPLE
PROBE
REAGENT
PROBE
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8. Remove Sample Module (see Service Manual Chapter 12-1).
9. Remove Reagent Module (refer to Service Manual Chapter 11-1).
10. Loosen the electronics enclosure screws at the rear panel and slide it back to ease the
process. Disconnect any cable that reaches the backplane board and front interconnect
board.
NOTE: With a paper cloth dry any condensation remaining into the reagent bowl in order to
avoid any spillage during the removal process. Keep the carousel in a safe place and handle
it with care.
ATENTION: Make sure the 3 thermal isolators below the reagent carousel are present (on
the base or in the reagent carousel. Keep them in a safe place until installing the Reagent
Carousel Assy back into the unit. The absence of a thermal isolator compromises the
instrument performance in terms of the cooling capability of the reagent carousel.
11. Remove Sample Pipettor (see Service Manual Chapter 10-2)
NOTE: Pay attention when disconnecting the Sample Pipettor cables and cables routed
through the clamp before proceeding with the removal of the module. When detaching it
from the Incubator Distributor, a black plastic spacer will be seen, this piece must be reused
when installing the new sample Pipettor. Picture of the plastic spacer is shown below.
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Instrument configuration must be as shown below before placing the new Pipettors into the
instrument.
The thermal isolators must be in the yellow areas (in the figure only one is left, the other
two are in the foam of the reagent carousel).
Inspect the instrument casting below the reagent carousel and dry any water that could
have accumulated in the casting compartments.
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12.Install the Sample Pipettor with active brake.
NOTE: Do not forget the Sample Pipettor spacer!
When installing the Sample Pipettor in the unit, do not pinch any cables and route them to
the back, exiting from the rear side of the Pipettor to allow a further routing step. Refer to
the figure below:
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Picture on the left shows the pre-placement of the Pipettor. In this phase the screws are in
place but not completely tightened.
When tightening the screws, make sure the Pipettor is slightly forced in the direction shown
with the yellow arrow.
Verify that there is no cable interference in the far up and low positions of the Pipettor.
Override the Pipettor manually to bring it down and check for interference. Make sure the
cables are not rubbing against any part.
UP
DOWN
MIDDLE
NOTE: When moving the Pipettor up manually to the far up position the connector lock of
the flat cable will interfere against the sample wash tower. This is as designed, the home
position of the Sample Pipettor Z movement happens before reaching this point.
13.Once the Sample Pipettor is fixed in place, guide the sample pump tubing that connects
to the probe, through the internal part of the shaft.
14.Install the SAMPLE PIPETTOR ACTIVE BRAKE PCB (0009803288) (assembled with the
Sample Pipettor Active Brake PCB support in BAG#6) as shown in the yellow circle.
Warning: In this step the PCB support has to remain unfastened. The PCB support is not
tightened until Step 36!!
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Identify the board with Sample Brake label
Placement detail of the board and support
15.Route the Sample Pipettor cables through the white P clamps as shown in the figure
below
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4 cables from the Pipettor
Routing is complete
16.Attach the square tie wrap mount as seen in the picture below (BAG#1). The placement is
shown in the figure below use, as a reference, the hole in the base casting in the vicinity of
the cables. Prior to removing the adhesive protection paper, clean the surface with alcohol
where the tie wrap will be mounted.
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Overview of the placement
Detail of the placement
17.Place a short tie wrap (BAG #4) to group the cables as shown below.
Do not completely tighten this tie wrap; some room has to be left for additional cables.
18.Connecting the cables.
Motor cable labeled P601 has to be connected to J601 in the active brake board
Solenoid cable P604 has to be connected to J604 in the active brake board
Reconnect to Interconnect PCB #2 the two sensor cables labeled P222 and P221.
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Interconnect PCB #2
P222
P221
P601
P604
19. Sample Pipettor flat cable installation instructions.
a. Place the spare cable clamp (Bag #3) as shown in the picture below (label end is
the reference point to align the clamp):
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b. Fold the cable as shown (make sure the fold remains). This step will allow a
proper routing of the cables out of the plastic clamp.
NOTE: After the fold is done, remove the clamp.
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20. Install the Sample/Reagent Pipettor override switches.
There are two holes in the left side of the unit where the peristaltic pump is located (see
detail below).
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The Sample Pipettor override switch cabling has to be installed in the hole closest to the
front part of the instrument. The cable is in BAG#5 and its label is P603 (is the longer one of
the two override switch cables).
Discard the flat washer.
Locking
Washer
Nut
The locking washer and nut are installed in the outer part of the unit, as seen below.
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Tighten it.
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Proceed with the routing of the cable.
Under the motor
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Around the power supply
Open the fluidics drawer (if needed) to route the cable behind the incubator.
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Leave the cable like shown in the figure (for now)
Proceed now with the Reagent Pipettor override switch following the same steps done for
the Sample Pipettor Override Switch (this time use the cable labeled P703 from BAG#5):
- Discard the flat washer.
- Install the washer and the nut in the outer part of the unit.
- Tighten it.
- Proceed with the routing of the cable, following the same path as the sample.
The Reagent Pipettor override switch is installed in the other hole, furthest from the front of
the unit (as shown in figure below).
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Place to install the Reagent Pipettor Override Switch
21. Remove the Luminometer black cover to ease the installation of the power supply cable,
the black and red twisted one (0009803292) that splits into two and labeled P605 and P705
(It can be found into BAG#5).
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Remove the plastic protection of the power supply terminals and install the power supply
cable as is shown in the picture below.
RED
BLACK
Be sure that both cables are placed as shown.
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Tighten the screws and place the terminals plastic cover back.
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Route the cable along with the override switched cables. Replace the Luminometer black
cover.
22. Route the 3 cables behind the aluminum post.
23. Install the Reagent Pipettor Active Brake PCB (0009803287) as shown below (assembled
with the Reagent Pipettor Active Brake PCB support in BAG#6).
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BOARD
-
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Tighten the board in place through the upper support screw (see detail below).
24. Clean the area that the plastic cable holder will be installed to, with alcohol. Wait for
the alcohol to dry (~1 minute) and install the plastic cable holder from BAG#1 (see picture
below).
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Clean with alcohol
Place the plastic holder
25. Using a long plastic tie (BAG #4) tighten the cables as is shown in the picture below
(behind the post). The tie does not have to grab the tubes that run close to the aluminum
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post. Tighten the tie and cut the excess. Make sure the plastic head of the tie wrap stays as
close to the tubes as possible. See yellow arrow indicating proper placement.
26.Route only the Power Supply Cable (P605) and the Sample Pipettor Override Switch
(P603) through the plastic tie in the casting. As shown in the picture below.
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Arrange the cables through the plastic tie wrap and P-clamp. Tidy them up and completely
close the tie wrap.
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Connect the two new cables to the Sample Pipettor Active Brake PCB (P603 to J603 and
P605 to J605).
P603  J603
P605  J605
NOTE: It may be necessary to tie the two cables out of the way in order to prevent contact
with the sample pump tubing.
27. You can connect the other two cables, labeled P703 and P705, to the corresponding
connectors in the Reagent Pipettor Active Brake PCB. Make sure they go through the plastic
clamp as shown in the figure below.
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P703
P705
28.Modification of the Reagent Carousel
In this section we are going to use the new Reagent Pipettor with Active Brake (0009803286)
and a modified bracket (BAG #3) that will allow the proper guidance of the flat flexible
cables.
Remove the old Pipettor from the reagent carousel (see Service Manual Chapter 9-1).
Remove the bracket piece from the reagent carousel shown in the figure below:
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OLD BRACKET
Cut the plastic ties holding the cabling on the right side.
Remove the 3 plastic screws holding the bracket piece.
Install the new supplied bracket (BAG #3). Reinstall the plastic ties accordingly to hold the
cables in place.
CABLE HOLDER
NEW BRACKET
Make sure the tie wrap is oriented correctly, otherwise will interfere with UP/DOWN
movement of the Pipettors.
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INCORRECT
CORRECT
Close the plastic clamp in the new supplied bracket as shown in the picture below.
INCORRECT
Open Clamp
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CORRECT
Closed Clamp
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Write the original number of the reagent carousel upon the clean curved surface of the
bracket with a permanent marker (see example below).
29.Attach the Reagent Pipettor with Active Brake to the Reagent Carousel
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Verify once more the plastic clamp, it should be closed.
Incorrect (clamp open)
Correct (clamp close)
Pre-install a tie wrap (long) through the 2 holes of flat cable holding bracket as shown below
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30.Now route the flat cable labeled P6 as the shown below.
The cable is going behind the linear bearing guide to the heat sink area. Make sure that
there is NO TWIST in the cable. The lateral view is shown for reference.
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31.Proceed to attach the flat cable at the P clamp provided in BAG #2, as shown below.
Place the cable through the P-clamp prior to its attachment against the heat sink.
Before
After
32.Ensure the Reagent Pipettor moves freely up and down with no interference.
33.Placement of the flat cable into the plastic clip.
Move the Pipettor highest Z position.
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Place the cable in the clamp. The clamp position for the cable is given by the end of the
cable label, as shown in the picture below.
Preform the cable with a 90º fold to facilitate its routing after installing the reagent module.
34. If you have not done so previously place the thermal isolators back on the casting posts.
35.At this point in time and before placing the reagent carousel back to the instrument
proceed with the following cable connection.
Take cable labeled as P701/P5 from BAG #5 and connect it from the Reagent Brake PCB
board to the backplane board J5 connector. See images below as a reference.
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NOTE: The guidance of this cable will require cutting the below indicated plastic tie. To
install a new plastic tie, remove the electronics enclosure cover and remove the boards
inside. After tightening the tie place the boards back into the electronics enclosure.
ELECTRONICS ENCLOSURE COVER
Cut existing tie and place a new one.
Detail on how the plastic tie has to be in order to avoid any interference with moving cables.
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The closer the plastic tie head is to the metal enclosure the better.
Tidy up the cabling of the reagent carousel to avoid interferences with other modules when
placing it back to the instrument. Keep the Pipettor in the upper position.
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36. Place the Reagent Module back upon the casting. Make sure nothing is pinched and
drainage tubes fall into the corresponding area on the casting.
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Make sure the fluid connection tubing inside the Reagent Pipettor shaft goes through the 2
P clamps on the casting (see picture below).
To Reagent
Pipettor Shaft
From Reagent Valve
NOTE: Verify nothing is being pinched before tightening the Reagent Carousel screws.
Now connect the solenoid cable (P704) and the interconnect cable (P702) to the Reagent
Pipettor Active Brake PCB, as it is shown in the next figure. It is difficult because it must
reach the board from below. Place the cables at the bottom of the casting and route them
to the board. They only have one fixing point, the plastic clip previously installed.
Here you have a sample of how it must be layed out.
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After clipping the cables
move the bundle upwards
Make sure the cables are at the same level as the plastic clip; otherwise they could be pinched by
the backplane board when putting the electronics enclosure back to the system.
The recommendation is to pull them upwards to avoid any pinching, see next figure for pinching
indication.
CHECK ONLY
DO NOT PLACE
THE ENCLOSURE BACK
Potential pinching of the cables with the backplane board.
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37. Clip the Reagent and Sample flat cables in the clip mount of the bracket. To facilitate
this operation, is strongly recommended to do the following:
i) Remove Reagent Probe Wash Tower and place it over the incubator as shown:
ii) Lift Sample Pipettor totally up
iii) Lower Reagent Pipettor deep all the way.
Open the clip to allow the Reagent cable to be free.
The first cable into this clip is the Sample Pipettor cable, this cable comes with a folded part
(previously folded) that will indicate is positioning in the clip.
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We have to manage to place the Sample Pipettors first in the clip making sure that it exits
towards the front of the instrument.
Once this is done we should be able to see the Sample Pipettor cable coming out towards
the front part of the instrument as the picture below
Bracket
From Sample Pipettor
Instrument front
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For the Reagent Pipettor Cable the routing is as shown:
Instrument
back
From Reagent
pipettor
Bracket
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Both together should look like the drawing below. Notice the presence of a plastic tie that keeps
the cables together when exiting laterally.
Instrument back
From Reagent
pipettor
Plastic
clip
From Sample
pipettor
Bracket
Plastic tie
Instrument front
Clip them together in the clip installed on the bracket. The cables must run parallel exiting the
bracket, as shown in the previous drawing.
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Use the pre-installed plastic tie wrap from step 24 to tie both flat cables against the bracket in
order to avoid blocking the encoder wheel.
Confirm that flat cables do not interfere with the reagent Pipettor encoder (see below).
Flat Cables
Bracket
Encoder
The Sample Pipettor cable (P216) that goes to the front should be twisted to the front and routed
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behind the Sample Pipettor Active Brake PCB. Prior to tightening the support in place make sure
the flat cable is as close as possible to the lower part of the casting to avoid any pinching. Example
shown below.
As low as possible
Now fasten the PCB support upper screw.
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38.Connect the Sample Pipettor flat cable (P216) to the front board (J216) as shown in the
picture
39.Connect the Reagent Pipettor flat cable (P6) to Backplane PCB (J6).
40.Connect the jumper cable (BAG#5):
1st end - connector P602 to J602 on the Sample Pipettor Active Brake PCB.
2nd end - connector P223 to J223 on the Interconnect PCB#2 (under reagent carousel)
41. Reconnect all cables to Backplane PCB and bring the fluidics drawer and the electronics
enclosure back to the closed position. In the process of doing this make sure to not pinching
any cable.
42. Replace reagent wash tower (with corresponding tubes) if it was removed in step 33.
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43. Remove the Reagent Tower Cap and align the Wash Tower by hand. The long axis of the
inner oval Wash Cup should point directly at the Reagent Arm Shaft (see picture below).
Replace the Reagent Wash Tower Cap. Perform the same type of alignment if the Sample
Wash Tower has been taken out or moved.
44.Replace Sample Module (refer to Service Manual Chapter 12-1).
45. Replace Sample Probe and Reagent Probes (refer to Service Manual Chapter 10-2 & 9-1).
46.The instrument should be turned on in order to be able to move the Pipettor down using
the override switches. Check the override switches moving the arms up by hand and then
down with the help of the override switches to make sure the override mechanism works.
WARNING: If any of the override switches do not seem to release the corresponding
Pipettor, it could be as a consequence of the Pipettor being at its uppermost position. To
unlock the Pipettor press its corresponding switch while pulling the Pipettor shaft up and
then immediately down.
NOTE: If the instrument is powered off, the override switches do not work.
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REAGENT PIPETTOR ALIGMENT
47.Attach the PIPETTOR ARM TOOL (PN 0009803304) as shown in the figure. The ground
connection terminal should be taken out in order to accommodate the tool (sometimes
cutting the plastic tie allows proper placement of the tool).
48.Loosen the M3 and M5 screws on the side of the Reagent Pipettor Arm just enough to
allow the arm to rotate stiffly on the Pipettor Shaft. This should allow the arm to move
freely in the radial direction as shown in the pictures below. The M5 screw may limit this
movement if not loose enough.
M3
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49.By hand rotate the arm until the probe is above Reagent Carousel position B.
D
C
B
A
50. Press the Reagent override switch, and lower the probe down into the hole until the
pipette nut base is inside the groove of the Reagent Carousel cover.
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B
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51.Adjust the length of the arm manually so that the pipette nut base is centered in the
groove and does not hit either the wall of the groove.
52.Tighten the M3 screw on the side of the arm to 23 in-lbs.
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53.Turn the hex-head jack screw to set the mechanical spacing of the arm to the extension
gap.
Hex head
screw
54. By hand bring the Pipettor up as high as it will go in the Z axis.
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55.Twist the Pipettor shaft counter clockwise until the Rotational Stop is hit.
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56.While twisting the shaft against the stop, rotate the Arm on the shaft so that the probe is
in the groove of the Reagent Carousel cover, 5-8 mm from the end of the groove past the
Reagent Carousel position A. See the picture sequence below.
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A
Place the probe not over A, just beyond it.
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5-8 mm
57.Ensure that the Pipettor Arm is fully seated on the shaft and snug the M5 screw.
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58.Check that the probe is still 5-8 mm from the end of the groove. If not, loosen the M5
screw and repeat the process from previous two steps.
59.Tighten the M5 screw to 100 in-lbs.
60.Remove the PIPETTOR ARM TOOL and replace the ground terminal back to the original
position. If the plastic tie was removed reinstall a new tie.
61. Install the Pipettor cover onto the Reagent Arm.
SAMPLE PIPETTOR ALIGMENT
62.Remove the sample basket from the instrument.
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63.Attach the PIPETTOR ARM TOOL as shown in the figure. The ground connection terminal
should be taken out in order to accommodate the tool.
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64.Loosen the M3 and M5 screws on the side of the Sample Pipettor Arm just enough to
allow the arm to rotate stiffly on the Pipettor shaft. This should allow the arm to move
freely in the radial direction as shown in the pictures below (M5 screw may limit this
movement if it is not loose enough).
M3
M5
65.By hand rotate the arm until the probe is above Sample R Reagent D position.
D
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C
B
A
ECR# 427710
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66.Press the override switch, and lower the probe down into the hole until the pipette nut
base is inside the groove of the Reagent Carousel cover.
D
67.Adjust the length of the arm manually so that the pipette nut base is centered in the
groove and does not hit either the wall of the groove.
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68.Tighten the M3 screw on the side of the arm to 23 in-lbs.
69.Turn the hex-head jack screw to set the mechanical spacing of the arm to the extension
gap.
Hex head
screw
70.Remove the tool and check that the adjustment also is good for the Sample Carousel
groove. Fine tune it if needed, loosing M3 and adjusting it again.
71.Reinstall the PIPETTOR ARM TOOL.
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72.By hand bring the Pipettor up as high as it will go in the Z axis.
73. Twist the Pipettor shaft counter clockwise until the Rotational Stop is hit.
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74.While twisting the shaft against the stop, rotate the arm on the shaft so that the probe
just touches the Reagent Cover on the far side of the Sample R Reagent D position. See
pictures below.
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75.Ensure that the Pipettor Arm is fully seated on the shaft and snug the M5 screw.
76.Check that the probe still just touches the Reagent Cover. If not, loosen the M5 screw
and repeat from two steps before.
77.Tighten the M5 screw to 100 in-lbs.
78.Remove the PIPETTOR ARM TOOL and replace the ground terminal back to the original
position.
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79.Replace the sample basket
80.Install the Pipettor cover onto the Sample Arm.
ALIGMENTS CHECKING
81.Through the Field Service Software verify/set the following alignments
Sample Pipettor
Reagent Pipettor
Sample Pipettor to Incubator/Distributor.
ATTENTION: Do not reinstall the incubator covers because they must be
removed in the next step.
Reagent Pipettor to Incubator/Distributor
Sample Pipettor to Sample Carousel.
Sample Pipettor to Reagent Carousel.
Reagent Pipettor to Reagent Carousel
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ECR# 427710
CYCLE TESTING THE PIPETTORS
82.Within the Field Service Software go into the Cycle Tests wizard.
NOTE: The purpose of running the Z cycle tests is to detect if there is any rubbing of cables
against any piece of hardware. Inspect the area where the flex cables come together and
the surrounding area to make sure that during the Z motion there is no friction or rubbing
against any other part. Make sure that the tubing is able to move freely and it is not
touched by cables, if it is rearrange the cables.
ATENTION: Home Sample Z, Sample R, Reagent Z and Reagent R between these two tests
and at the end of the testing. Homing is available on the left hand side of the wizard screen.
Homing area of the Pipettor Cycle Test Wizard
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Warning: Always home the Z and R movements before running the cycle test and before
exiting the Wizard.
Click on Pipettor Cycle Tests
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Sample Pipettor Z movement (100 cycles). Once selected and set, click on Run Test to start
the testing
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Reagent Pipettor Z movement (100 cycles).
83.If no errors occur replace the instrument covers.
QUALIFICATION OF THE UNIT
84.Perform the usual Qualification Procedure used when a new installation is performed.
85.The UPGRADE is now complete.
INOVA Diagnostics, Inc.
9900 Old Grove Road
San Diego, CA 92131
United States of America
Technical Service (U.S. & Canada Only) : 877-829-4745
Technical Service (Outside the U.S.) : 00+ 1 858-805-7950
E-Mail: [email protected]
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ECR# 427710

New Pipettors with Active Brake

Transcription

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