DWK WHEATON Standard User manual

DWK Life Sciences | 800.225.1437 (U.S. & Canada Only) | 856.825.1100 | www.dwk.com | P/N 50099786 Rev. 07/2021
WHEATON® Standard
Top Drive Roller Apparatus
INSTRUCTION MANUAL
Catalog Numbers:
WSTPF511X-A THROUGH J
AND
WSTPF5811X-A THROUGH J

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DWK Life Sciences | 856.825.1100 | www.dwk.com | P/N 50099786 Rev. 11/2021
CONTENTS
1 INTRODUCTION .................................................................................................................................. 4
Standard Roller Top Drive Roller Apparatus ............................................................................... 4
Limited Warranty ...................................................................................................................... 4
Safety Symbols ........................................................................................................................ 6
Specific Safety Considerations .................................................................................................. 8
Specifications – Standard Roller– Top Drive Roller Apparatus .................................................... 9
Dimensions and Capacities...................................................................................................... 11
Available Options .................................................................................................................... 11
2 INSTALLATION AND INITIAL STARTUP ............................................................................................... 12
3 MAIN OPERATION ............................................................................................................................. 13
Front Panel Navigation............................................................................................................ 14
Operation Mode ...................................................................................................................... 15
Setup Mode ............................................................................................................................ 15
Bottle Diameter .......................................................................................................... 15
Bottle Rotation Direction ............................................................................................. 16
Factory Mode ......................................................................................................................... 16
Change Motor Gear..................................................................................................... 16
Ramp Up Time ........................................................................................................... 17
Bottle Speed Tolerance .............................................................................................. 17
Rotation Alarm ........................................................................................................... 17
Battery Backup Alarm ................................................................................................ 17
Motor Calibrate .......................................................................................................... 18
4 ALARMS .......................................................................................................................................... 19
Bottle Speed Tolerance ........................................................................................................... 19
Rotation Alarm (Option) ........................................................................................................... 19
Battery Condition and Backup Alarm (Option) ........................................................................... 20
5 MAINTENANCE – FOR QUALIFIED SERVICE PERSONNEL ONLY ............................................................ 21
Instrument Inspection ............................................................................................................. 21
Instrument Maintenance Schedule ........................................................................................... 21
6 TROUBLESHOOTING ......................................................................................................................... 22
Troubleshooting Check List ..................................................................................................... 22
Motor Replacement ................................................................................................................ 24
Fuse Replacement .................................................................................................................. 24
7 OPTIONAL BATTERY BACKUP TECHNICAL INFORMATION.................................................................... 25
Operation with Battery Backup ................................................................................................ 25
Replacement Batteries............................................................................................................ 25
Declaration of Conformity ................................................................................................................ 54

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DWK Life Sciences | 856.825.1100 | www.dwk.com | P/N 50099786 Rev. 11/2021
PARTS LISTS AND ILLUSTRATIONS
FIGURE A – MAIN ASSEMBLY 52 POS TOP DRIVE STANDARD ROLLER – WSTPF511X-A-J
FIGURE B – MAIN ASSEMBLY 86 POS TOP DRIVE STANDARD ROLLER – WSTPF811X-A-J
FIGURE C – ASSEMBLY, BASE WITH UPRIGHTS – WL055693
FIGURE D – ASSEMBLY, BASE WITH UPRIGHTS & DECKS – WL055702
FIGURE E – ASSEMBLY, FRONT RAIL – WL055613
FIGURE F – ASSEMBLY, FRONT RAIL – WL055704
FIGURE G – ASSEMBLY, REAR RAIL – WL055612
FIGURE H – ASSEMBLY, REAR RAIL – WL055703
FIGURE I – ASSEMBLY, DECK – WL055614
FIGURE J – ASSEMBLY, DECK – WL055701
FIGURE K – ASSEMBLY, TOP FRONT RAIL – WL055691
FIGURE L – ASSEMBLY, TOP FRONT RAIL – WL055682
FIGURE M – ASSEMBLY, TOP REAR RAIL – WL055690
FIGURE N – ASSEMBLY, TOP REAR RAIL – WL055683
FIGURE O – ASSEMBLY, TOP DECK – WL055689
FIGURE P – ASSEMBLY, TOP DECK – WL055700
FIGURE Q AND R – ASSEMBLY DRIVE UNIT – WL058584, WL058633, WL058601, WL058634
FIGURE S – ASSEMBLY – WL058605, WL058585, WL058609, WL058589
FIGURE T – ASSEMBLY – WL058607, WL058588, WL058608, WL058590
FIGURE U – MAINS FUSE REPLACEMENT
FIGURE V – BOTTLE SPEED VALIDATION
EMI DECLARATION AND WEEE NOTICE

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DWK Life Sciences | 856.825.1100 | www.dwk.com | P/N 50099786 Rev. 11/2021
1 INTRODUCTION
Standard Roller Top Drive Roller Apparatus
The WHEATON® Top Drive Standard Roller Apparatus is the next step forward in roller apparatus of
the past. The microprocessor controller, digital display and powerful brushless DC motor, allows
smooth and precise control of bottle rotation speed. True bottle speed indication, programmable
ramping, optional 8 hour battery backup and rotation alarm, round out this roller apparatus.
The WHEATON® Top Drive Standard Roller Apparatus is designed to roll partially filled roller bottles
at specified speeds. Requirements beyond catalog offerings can be considered. Consult DWK Life
Sciences Technical Service staff for specific roller apparatus needs.
Limited Warranty
DWK Life Sciences warrants this product to be free from defects in materials and workmanship for a
period of two (2) years from the date of shipment. This warranty is limited to, at our discretion, repair
or replacement of any defective part(s) which fails during the warranty period. This warranty does
not cover the vertical timing belts or horizontal stretch belts, which become worn during normal use.
This warranty shall not apply to any equipment or parts which have been damaged as a result of an
accident, misuse, neglect, or non-factory modifications. In addition, DWK Life Sciences, shall not be
responsible for bodily or property loss, damages, or injuries of any kind or nature through either
direct or indirect use of the product.
IMPORTANT: The WHEATON® Production Roller Apparatus was designed for the purpose of growing
anchorage-dependent cell lines in roller culture bottles, with a maximum weight limit per deck of 30
pounds. Use of this equipment for other than its intended purpose shall void this warranty. This
product is not intended for use in adverse environments outside the environmental conditions listed
in this manual. It is also not intended for use with corrosive or explosive solutions.
This warranty is made expressly in lieu of any and all other warranties, expressed or implied, or
statutory as to the merchantability, fitness for purpose sold, description, quality, productiveness or
any other matter. All other such warranties are specifically excluded.
Should warranty service be necessary, please contact the DWK Life Sciences Technical Services
Department (+1.856.825.1100 option 4) for authorization and instructions. It will be necessary to
remove the roller unit’s control housing in order to ship it to DWK Life Sciences. Please contact the
DWK Life Sciences Repair Department for information.
Items returned for repair or adjustment should be packed very carefully to prevent damage in transit
and also should be insured for your protection. Should damage occur in transit, all claims should be
made against the carrier.
DWK Life Sciences will repair or adjust out-of-warranty products at a nominal charge.

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DWK Life Sciences | 856.825.1100 | www.dwk.com | P/N 50099786 Rev. 11/2021
Damage in Shipment
Should this product arrive damaged as a result of transit, a claim should be made against the carrier.
All requests for inspection must be made to the carrier within 15 days of receipt of shipment. The
shipping carton should not be discarded but retained until inspection by a representative of the
carrier is made. DWK Life Sciences takes no responsibility for damage to merchandise in transit. All
such claims must be submitted to the carrier.
DWK Life Sciences makes no other express or implied warranty, statutory or otherwise, concerning
materials or goods supplied, including without limitation, ANY WARRANTY of fitness for a particular
purpose or any warranty of merchantability. The warranties given are exclusive of all other
warranties expressed or implied. DWK Life Sciences shall not be liable for consequential, special or
incidental damages.
To expedite any technical or service request, please have the following information available.
Thank you.
Model:
Serial #:
Catalog #:

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DWK Life Sciences | 856.825.1100 | www.dwk.com | P/N 50099786 Rev. 11/2021
Safety Symbols
The following safety symbols can be found within this manual and applied as decals to the unit. Their
definitions are below:
WARNING. READ AND UNDERSTAND ALL INSTRUCTIONS. Failure to follow all instructions
listed below may result in electrical shock, fire and / or serious personal injury.
An ELECTRICAL DANGER symbol indicates attention to an operation which could cause
electrocution or severe injury.
A Pinch and Crush danger symbol indicates attention to an operation which could cause
severe injury due to hands or fingers being caught in rotating parts or machinery.
This product may use optional rechargeable lead-acid batteries. Carefully
follow the included instructions for battery specifications and replacement
instructions. Fitting a battery of the wrong type, such as a non-rechargeable
battery, can cause an explosion or fire hazard.

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DWK Life Sciences | 856.825.1100 | www.dwk.com | P/N 50099786 Rev. 11/2021
General Safety Rules
WARNING. READ AND UNDERSTAND ALL INSTRUCTIONS. Failure to follow all instructions
listed below may result in electrical shock, fire and / or serious personal injury.
SAVE THESE INSTRUCTIONS
Know your instrument – Read the operating manual carefully. Learn the equipment's application and
limitations.
Ground all equipment – This instrument is equipped with a grounding type plug. The green/yellow
conductor in the cord is the grounding wire and should never be connected to a live terminal.
Avoid dangerous environment – Electrical instruments designed to process liquids must be operated
with extreme caution. If liquid comes in contact with internal electrical components or wires, fire or
electrical shock may occur. Adequate surrounding workspace should be provided during use. Do not
operate electrical instrumentation in a combustible atmosphere.
Work surface – Keep well lighted. Be certain the work surface is clean, level and sturdy enough to
support the weight of the unit, particularly if it is to be filled with liquid.
Wear proper apparel – Do not wear loose clothing, neckties or jewelry that might get caught in moving
parts. Non-slip footwear is recommended. Wear protective hair covering to contain long hair.
Wear safety goggles – Wear safety goggles at all times. Everyday eyeglasses only have impact
resistant lenses, they are NOT safety glasses.
Don’t overreach – Keep proper footing and balance at all times.
Maintain instrument with care – Keep screws tight and unit clean. Check periodically for worn or
damaged parts. Inspect the plug and cord before each use. Do not operate this instrument if there are
signs of damage.
Avoid accidental start up – Always make sure the switch is in the "OFF” position before plugging
instrument into outlet.
Disconnect Instrument – Always disconnect the instrument from the power source before servicing.
Do not block cooling vents if provided.
Do not operate this equipment in any manner not specified in this manual.
It is recommended that a fire extinguisher always be located in areas where electrical instruments
are being used.

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Specific Safety Considerations
WARNING! IMPROPER GROUNDING CAN RESULT IN ELECTRICAL SHOCK. IN THE EVENT OF A
SHORT CIRCUIT, GROUNDING REDUCES THE RISK OF SHOCK. THIS INSTRUMENT MUST BE
GROUNDED.
AVERTISSEMENT : UNE MISE À LA TERRE INADÉQUATE PEUT ENTRAÎNER UN RISQUE DE CHOC
ÉLECTRIQUE. EN CAS DE COURT CIRCUIT ÉLECTRIQUE, LA MISE À LA TERRE RÉDUIRA LE RISQUE
DE CHOC ÉLECTRIQUE. L'ÉQUIPEMENT DOIT ÊTRE RELIÉ À LA TERRE.
This instrument is equipped with a cord having a grounding wire and an appropriate grounding plug.
The plug must be used with an outlet that has been installed and grounded in accordance with all
local codes and ordinances. The outlet must have the same configuration as the plug. DO NOT USE
AN ADAPTER.
Do not modify the line cord that has been provided. If it does not fit the available outlet, contact your
nearest DWK Life Sciences distributor for the proper line cord for your geographic area.

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Specifications – Standard Roller– Top Drive Roller Apparatus
Operating Voltage:Nominal 100-240 VAC 50/60 Hz
Power Consumption: 35 watts
Fuse(s): (1) 1.0 A 5x20 mm 250 V – (110-120 V)
(2) 0.63 A 5x20 mm 250 V – (220-240 V)
Bottle Size Range: 110 – 121 mm diameter and up to 550 mm in length
Bottle Speed:0.25 to 8.00 rotations per minute (RPM) using 110 mm
Diameter Bottles
0.22 to 7.54 RPM using 117 mm diameter bottles
Installation Category: Class II
IP Code (Control Head Only): 42
Environmental: Operating temperature: 5° C to 40°C
Humidity: 80% up to 31°C / 50% at 40°C
Altitude limit: 2000 meters
Motor: 24 VDC – Brushless Gear motor
Battery Backup (option): (2) Sealed Lead Acid batteries for approximately 8 hours full
operation.

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Alarms: Belt (optional) – Alarms within two expected revolutions of the roller shaft pulley.
Speed Deviation – +/- 0.01 RPM – 1.00 RPM beyond speed set point.
Low Battery – Visual and audio alarm indicators if battery voltage falls below 21.7
volts. Unit will attempt to continue to run regardless of voltage.
Visual Alarms – Indicators on main screen plus blinking light on mains power
switch.
Signal Alarms – Dry contact relay output through the optional Alarm Output jack is
energized and closed on normal condition and de-energized and open on alarm
condition – common to all alarm conditions.
Audio Alarm – Internal audio alarm sounds on alarm condition, common to all
alarms.
Dry Contacts – Dry contact alarm relay available through the optional Alarm Output
port. See section 4for dry contact pin-outs. Contact Ratings: 125 VAC, 60 VDC, 1 A.
Alarm Output Jack Connector – Amphenol 3263 100
Mating Alarm Output Jack Connectors– Amphenol T3260001U, T326005U, T326002
Construction: Frame – Aluminum with Epoxy Paint Coating
Wheels – Thermoplastic Rubber with Zinc Plated Steel Frame
Roller Bearings – Delrin with stainless steel ball bearings
Rollers – EPDM rubber with aluminum shafts
Vertical Drive Belts – Neoprene rubber
Horizontal Drive Belts – Urethane Rubber

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Dimensions and Capacities
CAT.#
DESCRIPTION
NO. POS
H X W X D
WEIGHT
WSTPF511X-X
Top Drive Standard
11 Fixed Decks
52
74.7 X 30.9 X 25.6 inches
189.7 X 78.4 X 65.0 cm
250 lbs
113.4 kg
WSTPF811X-X
Top Drive Standard
11 Fixed Decks
88
74.7 X 46.9 X 25.6 inches
189.7 X 119.1 X 65.0 cm
350 lbs
158.8 kg
W3488890V2
Battery Back-up and Rotation
Alarm
Sensor Option
N/A
N/A
10.0 lbs
4.6 kg
Available Options
CAT.#
DESCRIPTION
W3488890V2
Battery Backup (8hr) system and rotation monitor cables
W348887*
5 Position Add-on Deck Kit – Modular Spacing (7.106 in. Deck-to-Deck)
W348889*
5 Position Add-on Deck Kit – Production Spacing (6 in. Deck-to-Deck)
*These are kits designed for customer installation.
Top Drive
DECK HEIGHT CHART
# Decks
Production Spaced
Modular Spaced
Fixed and Removable
Fixed
Removable
(6 in. Between Decks)
(7.125 in. Between
Decks)
(7.106 in. Between Decks)
inches
cm
inches
cm
inches
cm
1
14.7
37.4
14.7
37.4
14.7
37.4
2
20.7
52.6
21.8
55.5
21.8
55.4
3
26.7
67.8
29.0
73.5
28.9
73.5
4
32.7
83.1
36.1
91.6
36.0
91.5
5
38.7
98.3
43.2
109.7
43.1
109.6
6
44.7
113.6
50.3
127.8
50.2
127.6
7
50.7
128.8
57.4
145.9
57.3
145.7
8
56.7
144.0
64.6
164.0
64.4
163.7
9
62.7
159.3
71.7
182.1
71.6
181.7
10
68.7
174.5
Will Not Fit Into Incubator
11
74.7
189.8

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2 INSTALLATION AND INITIAL STARTUP
Install the unit where there will be adequate room for the unit to operate. Provide enough clearance
around the unit to keep items away from the rotating belts and pulleys.
Initial Inspection
When you receive your roller apparatus, inspect it for any obvious damage that may have occurred
during shipment. If any damage is found, notify the carrier at once. Warranty information is shown in
the front of this manual. Check to confirm that there are no broken switches, displays or pulleys and
that the unit is not dented or scratched.
Input Power Requirements
This equipment is designed to operate from a nominal 100 – 240 V single-phase AC power source at
47 to 63 Hz. The line voltage / fuse label located on the rear of the control housing shows the input
voltage and fuses set for the unit at the factory.
Power Cord Set
This unit has been shipped from the factory with a power line cord that has a plug appropriate for
your area. If the wrong power cord has been shipped for your particular application, contact your
nearest DWK Life Sciences dealer for the proper cord. The Top Drive Standard Roller Apparatus has
been equipped with a 3-wire grounding type power cord. The unit is only grounded when it is plugged
into an appropriate receptacle.
DANGER! Do not operate the unit without adequate grounding protection.
CAUTION: Keep hands and fingers away from rotating parts of the machine. Do not remove any
safety guards or operate the machine without the safety guards.
IMPORTANT: This apparatus was designed to run partially filled bottles for standard cell
culture applications. Consult DWK Life Sciences Technical Service staff for specific roller
apparatus needs.

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First Time Startup
The first time the unit is ever powered, the unit will be operating under stored factory default
settings. After a user inputs and saves new settings for a given unit, the unit power can be turned off
and the previously saved user settings will be restored when the unit is turned back on. Saved user
settings are bottle speed, bottle rotation direction, bottle speed tolerance, ramp time, bottle diameter,
and motor gear ratio.
3 MAIN OPERATION
When main power is applied, the roller apparatus display will initialize and show the installed
firmware revision number. The display will then continuously show the true bottle speed on the front
panel display.
The system will always power on in Operation Mode with all operational parameters set as they were
during the last use.
NOTE: After receiving this system from the factory, the first time you turn it on, it will operate with
all options (including speed and bottle diameter) set to the factory defaults. You will need to set the
new system to your bottle diameter and desired speed before using for production. (see section 2
above)

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Front Panel Navigation
All functions of the Top Drive Standard Roller Apparatus can be controlled through the front panel.
Functions are divided into three main modes e.g. the Operation Mode, Setup Mode and Factory Mode.
FIGURE 1 – FRONT PANEL NAVIGATION
Navigating between the three main screens is done through the four push buttons on the edge of the
display.
FIGURE 2 – DISPLAY INTERFACE
Display Screen
Power Switch
Optional Alarm
Output Jack
Select
Enter
Up Arrow
Down Arrow

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Operation Mode
The system will always power on in default Operation Mode with all operational parameters set as
they were during the last use. True bottle speed will be displayed along with any alarm conditions.
Setting Bottle Speed
The user can change the bottle speed during operation by pressing the Up Button (top right) to
increase speed or the Down Button (bottom right) to decrease speed at any time. The Up button will
increment the bottle speed by 0.01 rpm with each press and the Down button will decrement the
bottle speed by 0.01 rpm each press. Holding either button down for about 5 seconds will allow for
faster display value changes when a larger numerical change is required.
The standard bottle speed range for this system is 0.23 rpm to 8.02 rpm (using 110 mm diameter
bottles).
Setup Mode
Pressing the Select button (top left) once enters the Setup Mode. The Setup Mode is used to set the
bottle diameter and direction of rotation. Once set, these parameters are usually not changed unless
different size bottles are used. Values set in the Setup Mode are not erased when power is removed
from the system.
To change a parameter value, press the Select button until the desired parameter is displayed. Press
the Enter button and the display will show the existing parameter value. Press or hold the Up button
to increase the parameter’s value. Press or hold the Down button to decrease the parameter’s value.
When satisfied with the value change, press the Enter button to save the new value to memory and
automatically return to Operational Mode.
To check a parameter value without changing it, press the Select button until the desired parameter
is displayed. Press the Enter button to display the existing value. Press the Enter button again to exit
the Setup Mode and return to normal Operation Mode.
NOTE: If no buttons are pressed for 30 seconds, the system will automatically exit Setup Mode and
return to normal Operation Mode.
Bottle Diameter
The Standard Roller Apparatus system is designed to accurately display actual bottle rotation speed.
Once a bottle diameter has been programmed, the unit will automatically calculate and adjust itself
to roll the bottle correctly at its set speed. Different bottle manufacturers produce bottles of different
bottle diameters. It is not recommended that bottles of different manufacturers be mixed on the
same unit if an accurate bottle speed is to be obtained.
The Standard Roller Apparatus relies on the maximum bottle diameter for proper bottle speed
indications. Traction rings and any outside ridges on the bottle must be considered in calculating the
maximum bottle diameter. Carefully measure (in millimeters) the maximum diameter of a sample
bottle to be used. If traction rings or ridges are at both ends of the bottle, measure both ends and take
the average. Using the obtained measurement(s), enter the bottle diameter (in millimeters).

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Press the Select button until the bottle diameter message (dIA) appears, then press Enter. Use the Up
and Down buttons to set the bottle diameter in millimeters.
Bottle Rotation Direction
Different motor gear ratios can be provided to allow the Standard Roller Apparatus to run at a wide
range of customer-specific speed ranges. Some of the slower motors that can be provided for the
Standard Roller Apparatus have an additional motor gear stage that make them run backwards from
the normally-offered catalog unit. Standard Roller Apparatus units ordered from the catalog will
come with a normal gear stage motor with a default gear ratio of 60:1 (default) gear motor. In this
case the Bottle Rotation Direction should be set to forward (Fd) to provide a counterclockwise bottle
rotation. If the motor is replaced with a motor different than the speed it originally came with, it is
recommended to consult DWK Life Sciences Service to determine if the Bottle Rotation Direction
needs to be changed.
Press the Select button until the bottle direction message (dIr) appears, then press Enter. Use the Up
and Down buttons to set the direction either forward (Fd) or reverse (rE).
Factory Mode
Five additional parameters are set during the manufacture of the Standard Roller Apparatus and are
accessed in the Factory Mode. Extra care should be taken when changing these parameters as they
could significantly affect unit performance. A user may need to enter the Factory Mode if circuit
boards are replaced, or if accessories are added or deleted.
To Access the Factory Mode
Accessing the Factory Mode is different from accessing the Setup Mode. Pressing the Select, Enter,
and Up buttons simultaneously will cause the display to enter the Factory Mode. The Factory Mode
navigation is similar to the Setup Mode navigation.
To change a parameter value, press the Select button until the desired parameter is displayed. Press
the Enter button and the display will show the existing parameter value. Press or hold the Up button
to increase the parameter’s value. Press or hold the Down button to decrease the parameter’s value.
When satisfied with the value change, press the Enter button to save the new value to memory and
automatically return to Operational Mode.
To check a parameter value without changing it, press the Select button until the desired parameter
is displayed. Press the Enter button to display the existing value. Press the Enter button again to exit
the Setup Mode and return to normal Operation Mode.
NOTE: If no buttons are pressed for 30 seconds, the system will automatically exit Factory Mode and
return to normal Operation Mode.
Change Motor Gear
The unit is shipped from the factory with the proper motor gear ratio already programmed. In the
case of a motor control board replacement, or motor replacement to a different speed than that

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which was supplied from the factory, the motor gear ratio should be checked and or changed. The
motor gear ratio is found on the builder’s plate of the motor.
Proper motor gear ratio is critical to accurate bottle speed indication. Selecting this icon brings the
user to a data entry field that displays the current gear ratio. The user can only change the number
left of the colon.
Press the Select button until the gear ratio message (GEr) appears, and then press Enter. Use the Up
and Down buttons to set the motor gear ratio. The default gear ratio setting is 60.
NOTE: This value is pre-set at the factory and should NOT be changed without consulting DWK Life
Sciences Technical Service if the proper value is unknown.
Ramp Up Time
The motor’s Ramp Up Time is the time it takes, in seconds, for the motor to reach a set bottle speed
during start-up or when any speed change occurs. This is convenient to minimize cell damage when
a unit is starting.
Press the Select button until the ramp up time message (rUt) appears, and then press Enter. Use the
Up and Down buttons to change the time. This parameter has a range of 0 seconds to 60 seconds and
is stepped in 1 second intervals. The default value is 5.0.
Bottle Speed Tolerance
The Bottle Speed Tolerance is +/- speed beyond the set point that a unit will generate a speed
deviation alarm. If set to 0.10, the bottle speed must be held to +/- 0.10 of the set bottle speed or an
alarm will be generated.
Press the Select button until the Speed Tolerance message (tOL) appears, and then press Enter. Use
the Up and Down buttons to change the time. This parameter has a range of 0.01 -1.00 rpm and is
stepped in 0.01 rpm increments. The recommended minimum speed tolerance is +/-.05 RPM.
Rotation Alarm
This parameter determines if the optional rotational alarm is activated or off. If a rotation alarm
sensor senses non-rotation within two expected roller revolutions, an alarm will activate.
Press the Select button until the Rotation Alarm message (rAO) appears, and then press Enter. Use
the Up and Down buttons to turn the rotation alarm either ON (1.0) or OFF (0.0).
Battery Backup Alarm
This parameter determines if the optional battery backup/alarm is activated or off. If equipped with
battery backup, an alarm will activate if the battery voltage falls below 21.7 volts.
Press the Select button until the Rotation Alarm message (bAO) appears, and then press Enter. Use
the Up and Down buttons to turn the battery alarm either ON (1.0) or OFF (0.0).
NOTE: If either the Rotation Alarm option or the Battery Backup system option is not installed, set
their respective alarms to 0.0 to avoid false alarming.

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Motor Calibrate
A routine motor calibration is not required nor recommended. Control of the motor is entirely digital,
and will not drift with temperature or age of the equipment. In the case of motor controller
replacement or motor replacement to a different speed than that which was supplied from the
factory, a motor calibration should be performed.
Press the Select button until the Calibrate message (CAL) appears, and then press Enter. Press the
Enter button to start the calibration.
Calibration Operation:
The calibration is separated into 2 steps. Each step will run for 20 seconds in order to give the motor
enough time to stabilize. After the 20 seconds expire, the system will automatically go to the next
step. When all steps are complete, the calibration constants will be saved, CALIBRATION mode and
FACTORY mode exited and the system will return to normal operation.
Step 1: The first 2 seconds the display will show S1. During this step, the motor will be running at
MAX speed.
Step 2: The first 2 seconds the display will show S2. During this step, the motor will be running a 10%
of the maximum output.
Step 3: The display will show ‘DON’ for DONE, letting the operator know that the calibration is
complete. After 2 seconds, the system will return to normal operation.
During any step in the calibration, the UP / DOWN buttons can be used to cancel the calibration,
restoring the system back to normal operation.

WHEATON® Standard Roller Apparatus
19
DWK Life Sciences | 856.825.1100 | www.dwk.com | P/N 50099786 Rev. 11/2021
4 ALARMS
The Standard Roller Apparatus contains up to three system performance alarms: Bottle Speed
Tolerance, Bottle Rotation (optional) and Battery Condition and Backup (optional). Each of these
alarms will show a message on the front panel display. If multiple optional alarms are active, the
operational mode display would flash/alternate between each alarm message.
The front panel Power Switch will also serve as an alarm indicator. If running on battery backup, the
power switch will blink at a slow rate (about 1 blink per 2 seconds). If any of the three system alarms
are activated, the power switch will blink at a fast rate (about 1 blink every ½second).
If the optional Rotation Alarm and Battery Backup package is installed, a front panel Alarm Output
jack is provided for remote monitoring of alarm conditions. Specifications for the front panel Alarm
Output Jack are provided in section 0. The alarm pin out for the front panel Alarm Output Jack is
shown below:
FIGURE 3 – ALARM OUTPUT JACK PIN OUT
Bottle Speed Tolerance
See section 3.4.3 for the definition and setting of the Bottle Speed Tolerance alarm. If the bottle
speed falls outside the set tolerance threshold (+/-) an audio alarm will sound and the display will
show (tOL).
Rotation Alarm (Option)
Two sensors mounted on the belt train, opposite the control housing, monitor pulley rotation of the
unit’s rollers. If a pulley rotation is not sensed within two expected revolutions the Rotation Alarm will
activate, and an audible alarm (loud) will sound. The display will show (rOt). To disable this alarm,
change the rAO parameter (included in the Factory Mode) from 1.0 to 0.0. This setting will cause the
software to ignore the belt hall effects.
Pin 1
Dry Contact
Output
Pin 3
Dry Contact
Output

WHEATON® Standard Roller Apparatus
20
DWK Life Sciences | 856.825.1100 | www.dwk.com | P/N 50099786 Rev. 11/2021
Battery Condition and Backup Alarm (Option)
If a unit switches to Battery Backup operation, the power switch will blink at a slow rate. No further
message will be shown on the front panel display.
The appearance of the bAt alarm on the display, indicates the batteries are not connected, they are
damaged, or they are below the charge threshold of 21.7 volts and need to be recharged. To disable
this alarm, change the bAO parameter (included in the Factory Mode) from 1.0 to 0.0. This setting will
cause the unit to ignore any battery problems.