Labnet 35 User manual

Operating Instructions
Labnet
Benchtop Rocker
Model 35/35D

Table of Contents
Introduction 1
Warranty 2
Specifications 3
Unpacking and Installation 3
Operation 4
Adjusting PlatformTilt 4
Safety Precautions 5
Care and Maintenance 6
Where to Call 6

CopyrightJanuary2000,LabnetInternationalInc.
Allrightsreserved.
Reproductionwithoutpriorwrittenpermissionisprohibited.
Informationcontainedhereinsubjecttochangewithoutnotice.

Introduction
TheModel35/35DBenchtop Rockeris intendedfor generalpurpose
applications requiring constant rocking. The rocker can be used in
environments from 4º to 65ºC. This allows for cold room use as well
asincubated applications.
The rockingplatform is covered with anonslip rubbermat toprovide
stability. Plates, dishes and other sample containers may be placed
on its surface. The degree of tilt the platform achieves while rocking
can be adjusted to ±20º. The number of tilts per minute can be
varied from 4 to 160 as required to suit particular applications. A two
hourtimer with holdposition controls operation.
The Model 35/35D Benchtop Rocker is constructed of heavy gauge
steel. This provides the rocker with a stable base for vibration free
operation. Themaximumloadtherockingplatformcancarry is4.6kg.
The Model 35/35D Benchtop Rocker is available with either a single
or double platform. In the double platform version, the second plat-
form attachesto thefirst platformbymeans ofmetal rods. Theclear-
ance between the two platforms is 82mm.
Readthisinstruction manual thoroughlybeforeattempting to operate
theModel 35/35DBenchtop Rocker. Allpersons operating thispiece
of equipment should review the Safety Precautions section of this
manual.
1

Warranty
Labnet International guarantees that the Model 35/35D Benchtop
Rocker you have received meets its published specification. The
Model35/35D Benchtop Rockeris guaranteedtobe freeofdefects in
materials and workmanship for a period of one year from the date of
purchase. This guarantee is valid only if the unit has been used in
accordance with the instructions in this manual and for its intended
purpose. LabnetInternationalshallnotberesponsiblefor consequen-
tial damages or damages resulting from the abuse or misuse of this
equipment. LabnetInternational’sliability shall belimitedto therepair
or replacement of the unit or refund of the purchase price, at Labnet
International’sdiscretion.
In the event that service is required, Labnet International’s Service
Department must first be contacted to receive a return authorization
number.
LabnetInternational reservesthe rightto alterthe specification ofthe
Model 35/35D Benchtop Rocker without notice. This allows the in-
corporationof improvements asthey are developed.
Please fill in the following information. This information will be re-
quired in the event that service becomes necessary.
Serial Number _________________________________
Date of Purchase _______________________________
2

Specifications
Shakingspeed 4 to 160 tilts per minute
Timer 1 minute to 2 hours or “hold”
Operating Environment 4º to 65ºC
PlatformDimensions 360 x 280mm
RockingMotion Adjustable, ±20ºtilt
MaximumLoad 4.6kg
Clearancebetween platforms 82mm
(Doubleplatform unitonly)
VoltageRequirements 120V/60Hz
Power/Current 60W/0.5amps
Unpacking and Installation
Upon receipt of the Model 35/35D Benchtop Rocker, examine the
exteriorcartonfordamages. In theeventofshipping damage, aclaim
must be filed with the transportation carrier within 10 days.
Carefully unpack the unit and check for completeness. Included in
the carton should be the following:
Rockerwith platform(s)
Securing hardware for second platform (35D only)
InstructionManual
WarrantyCard
Ifany ofthese itemsare missing,contact LabnetInternational’s Cus-
tomerService Department immediately.
Savethe originalpackaging until theunit hasbeen shownto be oper-
atingproperly.
Verify that the unit is rated for the proper voltage by checking the
panel on the back. Check that the proper power cord has been re-
ceived. The serial number is also found on the back panel. Make
note of the serial number in the space provided in theWarranty sec-
tion of this manual.
The Model 35/35D Benchtop Rocker should be located on a level,
stablesurface near agroundedelectrical outlet. Allowsufficientclear-
ance on all sides of the unit, at least 3 inches, for proper ventilation.
Ensure that the platform will not touch other objects while in opera-
tion.
If the unit is supplied with an optional upper platform, it should be
3

installedat thistime. Remove thehardware from the bottom threads
of the platform standoffs. Note the order of the hardware on the
threads. Place one large flat washer over each of the four holes on
the bottom platform. Insert the threads of each of the four standoffs
throughthe holes in the platformand thewashers. Replace allhard-
ware in the order in which it was removed. Do not overtighten the
wingnuts.
Plug the power cord into a grounded wall socket. The Model 35/
35D Benchtop Rocker is now ready for use.
Operating the Model 35/35D Benchtop Rocker
The Model 35/35D Rocker may be operated in either timed or con-
tinuousmode.
To operate in timed mode, turn the speed dial to the desired setting.
Turn the timer knob clockwise to thedesired time. Timecan be set in
1 minute increments between 1 and 120 minutes. Turning the timer
activates operation of the rocker. Operation will continue until time
hasexpired orthe timer isturned back(counterclockwise) tothe zero
position.
Tooperateincontinuous mode,turnspeeddial tothedesired setting.
Turn the timer knob left (counterclockwise) to the hold position. This
will begin operation of the rocker. Operation will continue until the
timer knob is turned back (clockwise) to toe zero position.
Note: The timer may be stiff and offer some resistance when turned.
This is normal.
Operation of the rocker may also be stopped at any time by turning
the speed dial to the zero position. When the speed dial is turned to
the zero position, the timer will continue to count down.
Note: To avoid splashing of samples, the rocker should be started
with the speed dial at the lowest position and gradually turned up to
thedesired speed.
Adjusting PlatformTilt
The tilt of the platform can be adjusted to ±20º. The tilt is factory
preset at ±10º. Instructions for adjusting the tilt are as follows.
1. Unplug the unit from the wall outlet.
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2. Locate the access panel on the back of the unit and remove
the 2 screws holding the panel in place.
3. Position a 7/16 inch wrench or adjustable wrench on the nut
holdingthebottomconnecting rod tothedisk. Usethewrench
toturn the diskuntil thelockinghole inthemotor shaftcollaris
aligned with the access hole on the rear panel. The locking
hole is located 180º from the collar’s set screw.
4. Insert the locking rod through the access hole and into the
locking hole of the motor shaft collar. This will prevent the
diskfrom turningwhile loosening ortightening thenut holding
the bottom connecting rod in place.
5. Loosen the 7/16 inch nut just enough to allow movement of
the nut and connecting rod in the slot. Move the nut outward
fromthecenter ofthedisk toincreasetilt action. Movethenut
inward toward the center of the disk to decrease tilt action.
6. When correct action is obtained, retighten the nut.
7. Remove the locking rod.
8. Replace access cover
SafetyPrecautions
The following precautions should be taken when operating or work-
ing near the Model 35/35D Benchtop Rocker:
Never operate the rocker without a platform securely
attached.
Alwayswear shatterproofeye protection.
Always make certain that the platform and any hardware are
secure before operating the shaker.
Load the rocker symmetrically. Unbalanced loads should
beavoided.
Solvents and flammables should not be used on or near the
shaker.
Service and repair must only be performed by qualified
professionals.
Hazardous samples should be shaken only in appropriate
containmentvessels.
5

Care and Maintenance
Aftereach use,the Model35/35D BenchtopRocker shouldbe wiped
down with a soft, damp cloth. Do not immerse the rocker in water or
pour liquids over the unit as electrical shock may occur.
The rod bearing should be lubricated every 3 to 6 months with a few
dropsof oil(Three-in-One, Handy Oil or similar). The motor and plat-
formbearings arepermanently lubricated andneed nomaintenance.
Ifthe rocker us used attemperatures above37ºC, therod ends must
be oiled every month to maintain proper operating condition. Never
usetheModel 35/35DBenchtopRocker inenvironmentsabove 65ºC
Where to Call
If you have a question about the Model 35/35D Benchtop Rocker,
contact Labnet International’s Customer Service Department at 732
417-0700, Monday through Friday, 8:30am to 5:30pm, EST.
For service inquiries, contact Labnet International’s Service Depart-
ment at 732 417-0700, Monday through Friday, 9:00am to 5:00pm,
EST. Before returning a unit for service, a Return Authorization (RA)
number must first be obtained from the service department. Equip-
ment sent in without prior authorization will be returned at the
customer’sexpense.
If the unit must be returned to Labnet International for servicing, it
should be sent in the original packaging. If this is not possible, be
sure that the unit is sufficiently packed. Any damage resulting from
improper packaging is the responsibility of the customer. A written
explanation should accompany the unit along with the return autho-
rization number.
6

Notes