Thermo Scientific MaxQ SHKE420HP Operating instructions

MaxQ High Performance
Incubated Orbital Shaker *
Model SHKE420HP
Operating and Maintenance Manual 7010420 Rev. 0
_________________________________________________________________________________
Part of Thermo Fisher Scientific

Thermo Scientific
MANUAL NUMBER 7010420
1 -- 8/29/11 Release 7 ccs
REV ECR/ECN DATE DESCRIPTION By
Preface
Orbital Shaker i
* Triple counter-balanced, single eccentric drive mechanism (U.S. Patent
#5,558,437)
* Test tube rack (U.S. Patent #5,632,388)

Thermo Scientificii Orbital Shaker
Preface
Important Read this instruction manual. Failure to read, understand and follow the instructions in this manual
may result in damage to the unit, injury to operating personnel, and poor equipment performance. s
Caution All internal adjustments and maintenance must be performed by qualified service personnel. s
Warning MaxQ SHKE420HP Obital Shaker may be used to process non-flammable materials only! s
Warning Grounding circuit continuity is vital for the safe operation of this shaker. Never operate this unit with
the grounding circuit disconnected. s
Material in this manual is for information purposes only. The contents and the product it describes are subject
to change without notice. Thermo Fisher Scientific makes no representations or warranties with respect to this
manual. In no event shall Thermo be held liable for any damages, direct or incidental, arising out of or related
to the use of this manual.
©2011 Thermo Fisher Scientific. All rights reserved.

Thermo Scientific Orbital Shaker iii
Preface
Important operating and/or maintenance instructions. Read the accompanying text carefully.
Potential electrical hazards. Only qualified persons should perform procedures associated with this
symbol.
Equipment being maintained or serviced must be turned off and locked off to prevent possible injury.
Marking of electrical and electronic equipment, which applies to electrical and electronic equipment
falling under the Directive 2002/96/EC (WEEE) and the equipment that has been put on the market
after 13 August 2005.
This product is required to comply with the European Union’s Waste Electrical & Electronic
Equipment (WEEE) Directive 2002/96/EC. It is marked with the WEEE symbol. Thermo Fisher
Scientific has contracted with one or more recycling/disposal companies in each EU Member State
European Country, and this product should be disposed of or recycled through them. Further
information on Thermo’s compliance with this directive, the recyclers in your country and information
on Thermo products will be available at www.thermofisher.com.
4Always use the proper protective equipment (clothing, gloves, goggles, etc.)
4Always dissipate extreme cold or heat and wear protective clothing.
4Always follow good hygiene practices.
4Each individual is responsible for his or her own safety.

Thermo Scientificiv Orbital Shaker
Preface
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Orbital Shaker vThermo Scientific
Table of Contents
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Remove the Pallet Shipping Brackets . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Special Ventilation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Power Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Check Operating Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Change Operating Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Install the Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Assemble the Flask Clips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Install the Flask Clips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Install the Test Tube Holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
RS-232 Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
Connect the Remote Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Control Panel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Quick Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Factory (Default) Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Change Temperature, Speed, Time Settings . . . . . . . . . . . . . . . . . . . .2-3
Change Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Change RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Change Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Change from Hold to Countdown . . . . . . . . . . . . . . . . . . . . . . . . .2-5
The Shaker Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
Overtemp Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Cycle Complete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Power Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
RPM Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Check Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Sensor Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Temperature High or Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Platform Stalled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
Check Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
Change Shaker Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
Turn Audible Alarm On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
Set Alarm Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11
Calibrate Speed and Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . .2-13
Section 1
Section 2

vi Orbital Shaker Thermo Scientific
Calibrate RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
Calibrate the Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
Remote Alarm System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15
Cycle Complete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15
Power Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16
RPM Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16
Check Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16
Sensor Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17
Temperature High or Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17
View Total Operating Hours . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17
Heat % . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-18
Software Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19
Temperature Sensor Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19
Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20
Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-21
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Platform and Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Clean-up After a Spill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Test Overtemperature Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Alarms and Alarm Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Adjust Drive V-belt Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Install a New Drive V-belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
Troubleshoot/Replace Circuit Boards . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Electronics Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
Output Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Motor Driver Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Manual Reset Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Temperature Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Drive Belt Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Spare Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Clean Inside Cabinet After a Major Spill . . . . . . . . . . . . . . . . . . . . . .4-8
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Electrical Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
Table of Contents
Section 3
Section 4
Section 5
Section 6
Section 8
Section 7
Section 2 (continued)

Orbital Shaker 1-1Thermo Scientific
Section 1 Installation
The MaxQ SHKE420HP Orbital Incubated Shaker is supplied with the
following materials:
1 - T-handle 5/32” hex socket wrench
2 - Platform alignment studs 1/4-20
6 - Grade 8, 5/32” hex socket flat head screws (provided with platform)
1 - Screwdriver for flask clip installation and removal
1 - Line cord set
2 - Cable mountable ferrites for remote alarm and RS-232 connections
1 - Platform (if applicable, must be ordered separately)
Warning This shaker is heavy! The net weight of SHKE420HP is 185 lbs.
(83.9kg). Have assistance available when moving it. Place this unit on a
support surface that will accommodate the weight and operating motion of
this shaker. s
The Orbital Shaker is secured to its shipping pallet with two brackets, one
on each side of the frame (Figure 1-1). A 7/16” wrench is required to
remove the brackets from the pallet. Remove the shipping brackets from
the shaker by unhooking them from the shaker frame.
Install the shaker on a sturdy table or bench. The support structure must
be able to accommodate both the weight and operating motion of the
shaker. The shaker can also be placed under a bench or in a “knee well.”
Remove the Pallet
Shipping Brackets
ORBITAL SHAKER
Pallet Shipping
Bracket
Figure 1-1. Bracket
Location

1-2 Orbital Shaker Thermo Scientific
Section 1
Installation
If the shaker is to be operated at a temperature 5° to 10°C above ambient,
the circular vent at the rear of the cabinet must be 1” from the wall and
the rear vent must be fully opened by turning the Phillips screw
clockwise. Refer to Figure 1-2.
If operating temperatures are more than 10° above ambient, the rear vent
must remain closed (fully counterclockwise).
A power module (Figure 1-3) located on the right side of the shaker
contains the On/Off power switch, two fuses, and the line cord receptacle.
It is the mains disconnect for the unit.
Figure 1-4 lists the voltage, rating and part numbers of the power module
fuses.
The electrical power requirements of the MaxQ SHKE420HP shaker are:
115VAC, 50/60 Hz, 1 PH, 6.5 FLA
230VAC, 50/60 Hz, 1 PH, 3.2 FLA
Special Ventilation
Requirements
Power
Module
(mains
disconnect)
ORBITAL SHAKER
Vent
Figure 1-2. Vents
Electrical
Requirements
Power Module
115V
230V fuse 4A P/N 230165
115V fuse 10A P/N 285633
Figure 1-3. Power Module Figure 1-4. Fuses

Orbital Shaker 1-3Thermo Scientific
Section 1
Installation
A small window in the power module above the On/Off switch shows the
shaker’s operating power configuration. The voltage shown in this window
must match the line voltage available where the shaker will be installed.
Figure 1-3 shows the shaker configured for 115 volts.
If the electrical service does not match the voltage shown, the power
module must be changed before the unit is plugged in and turned on.
Caution Do not plug the shaker in or try to operate it if the line voltage
does not match the configuration voltage shown on the power module. s
Remove the line cord if it is plugged in, then change the operating voltage
by following the illustrations in Figures 1-5 through 1-7.
When the shaker is completely
assembled, make sure the power switch
is turned off and plug the line cord
into the power module.
Check Operating
Voltage
Change Operating
Voltage
115V 115V
Insert
screwdriver
Open the
hinged
cover
Remove and rotate the fuse holder,
then change the fuses as shown below.
115V
230V
SPST
115V
230V
SPST
Remove the two existing fuses
and replace them with fuses
of proper voltage and rating
Side view of fuse holder with
230V fuse in place
Side view of fuse holder with
115V fuse in place
230V
Replace the
Fuse Holder
Close the
Hinged Cover
230V
Figure 1-5. Remove and Rotate Fuseholder
Figure 1-6. Replace Fuses
Figure 1-7. Re-install

Caution Install the shaker platform before plugging in or attempting to
operate the unit. s
The MaxQ Orbital Shaker accepts a heavy-
duty, 18" (wide) x 17-3/4" (front to back),
5/16" aluminum platform. The shaker
platform is attached to the orbital mechanism
with six 1/4-20 x 3/4" long hex socket flat head
screws, Grade 8. These screws are hardened and
should not be replaced with any other screw
type. A 5/32" hex socket wrench is included
with the shaker to attach the platform. Figure 1-8 identifies the hex socket
wrench and hex socket flat head screws.
Caution Do not attempt to use a Phillips head screwdriver! s
To install the shaker platform:
1. Insert the two 1/4-20 alignment pins into the two mounting holes
identified in Figures 1-9 and 1-10.
2. Rotate the drive mechanism until the four mounting holes
approximately match the holes in the platform.
3. Place the platform onto the shaker and over the alignment pins.
4. Move the platform in an orbital motion until one or more of the center
mounting holes are located.
1-4 Orbital Shaker Thermo Scientific
Section 1
Installation
Install the Platform
Figure 1-8. Included Wrench
Platform mounting
holes on the
drive mechanism
Platform mounting stud locations
(insert alignment pins)
= Platform Mounting Holes
Alignment Pins
Figure 1-9. Mounting Holes and Pin Figure 1-10. Mounting Holes

Orbital Shaker 1-5Thermo Scientific
Section 1
Installation
5. Insert the hex socket head screws as the four holes are located. Do not
tighten the screws.
6. Remove the 1/4-20 alignment pins and replace them with the
remaining two hex socket screws.
7. Seat all screws very tightly, using the T-handle wrench. If a torque
wrench is available, tighten these screws at 120 in./lbs. Check these
screws monthly if the unit is operated at or near maximum RPM.
Caution Use only the included hex socket screws and T-handle wrench to
fasten the platform. If a torque wrench is available, torque the screws to
120 in./lbs. The platform screws should be checked monthly if the unit is
operated at or near maximum RPM. s
Each Flask Clip, up to 1 liter in size, is supplied with a metal spring that
must be installed onto the clip. Two-liter flask clips are supplied with two
springs.
For flask clips through 500 ml, insert the end of each spring into the holes
on the top of the clip leg as shown in Figure 1-11. One liter and larger
flask clips require the spring ends to be hooked together as shown in Figure
1-12.
The spring ends on the two-liter flask clip are also hooked together, but
require the rubber spring tubes to be installed between the clip legs (Figure
1-11). The second spring and spring tubes are placed around the base of
the clip after it has been installed onto the platform.
Install the Platform
(cont.)
Assemble the Flask
Clips
Clip Leg
Upper Spring and
Spring Tubes
Lower Spring and
Spring Tubes
Figure 1-11. Clip Mounting Screw Figure 1-12. Clip Components

The SHKE420HP will accommodate glassware in numbers and sizes from
forty-nine 25 ml flasks to six, 2-liter flasks.
Flask clips can be attached anywhere on the shaker platform. The
counterbalanced design of these shakers accommodates even an unbalanced
load. The flask clips are supplied with the proper screws and are attached
to the platform with a standard Phillips screwdriver or with the screwdriver
provided with the unit.
Table 1-1. Platform Flask Clip Capacity
Figures 1-11 and 1-12 illustrate the installation of the flask clips. Note that
1-liter and 2-liter flask clips use five screws. The 250/300-flask clip has an
adhesive-backed flask cushion pad that is installed on the flat base of the
clip body. A hole is provided in the pad for the mounting screw. Refer to
Figure 1-11.
Accessory Test Tube Racks and Test Tube Rack Holders are available in
four sizes and are listed in Table 1-2. All the Test Tube Rack Holders are
adjustable into seven positions, swinging and locking at 15°, 30° and 45° in
either direction. Figure 1-13 illustrates the Test Tube Rack Holder with
rack in place.
1-6 Orbital Shaker Thermo Scientific
Section 1
Installation
Install the Flask Clips
Platform Number No. of Clips Flask Size Springs/Clip Screws/Clip
238010 49 25 ml 1 1
238011 49 50 ml 1 1
238012 25 125 ml 1 1
238013 18 250/300 ml 1 (w/1 lg. pad) 1
238014 16 500 ml 1 1
238015 81 L 1 5
238016 52 L 2 (w/10 tubes) 5
Install the Test Tube
Holders
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Spread metal tabs outward
to remove test tube rack
Locking Pin to swing/tilt
test tube rack 15°, 30°, 45°
Figure 1-13. Holder with Rack

To remove the rack, spread the metal tabs on
either end of the holder and lift out the
plastic Test Tube Rack.
To install the Test Tube Rack Holder onto the
shaker platform, remove the rack and rotate
the swing-bed of the holder 90° by pulling
the knobs of the locking pins on either end of
the holder outward. The pins are locked
outward by turning the knob 1/4-turn
(Figure 1-14). Attach the tray to the platform
with the screws provided.
The MaxQ Orbital Shaker is equipped with an RS-232 Serial
Communication Interface for the remote transmission of data. A RJ-11
telephone style connector is located on the left side of the incubator. A
cable with RJ-11 plugs and an RJ-11 to DB-25
adapter are required. Refer to Figure 1-16 for pin
identification and Figure 1-17 for connector
locations on the shaker side panel. A cable
mountable ferrite is included for installation of
the RJ-11 cable. Loop and snap (Figure 1-15) the
ferrite over the cable to reduce electro-magnetic
emissions from the unit. Attach the ferrite device
close to the unit.
Orbital Shaker 1-7Thermo Scientific
Section 1
Installation
Install the Test Tube
Holders (cont.)
Figure 1-14. Holder with
Rack Removed
Part No. Description
950040 Test Tube Rack, 10-13 mm size
950060 Test Tube Rack, 16-20 mm size
600074 Test Tube Rack, 21-25 mm size
600075 Test Tube Rack, 26-30 mm size
600076 Adjustable-Angle Test Tube Holder with Rack, 10-13 mm
600077 Adjustable-Angle Test Tube Holder with Rack, 16-20 mm
600078 Adjustable-Angle Test Tube Holder with Rack, 21-25 mm
600079 Adjustable-Angle Test Tube Holder with Rack, 26-30 mm
600088 Universal Adjustable-Angle Test Tube Holder. 10-25 mm
600089 2-Tier Micro-Plate Rack
600090 3-Tier Micro-Plate Rack
194024 #10-24 Pan Head Phillips Screws for mounting test tube holders to platform
Table 1-2. Accessory Test Tube Racks and Adjustable-Angle Rack Holders
RS-232 Interface
Connector
Figure 1-15. Ferrite

The RS-232 data is a formatted “dumb terminal”, which permits
interfacing with either a computer or a serial printer.
Three wires are used for the RS-232 interface:
1. Transmit data (/TXD) - pin 2 DB-25 connections
2. Receive data (/RXD) - pin 3 DB-25 connections
3. Signal ground (GND) - pin 7 DB-25 connections
The data format is:
Baud . . . . . . . . .1200 (9600 baud with jumper at J1,
. . . . . .pins 3 and 4 on the Main Control Board)
Data bits . . . . . . . .8 (7 bit ASCII with leading zero)
Start bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Stop bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Parity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .none
1-8 Orbital Shaker Thermo Scientific
Section 1
Installation
RS-232 Interface
Connector (cont.)
Figure 1-16. Remote Alarm and RS-232 Connectors
Remote
Alarms
RS-232
Figure 1-17. Connector Location

The data transfer sequence is transmitted in the following format. X refers
to the numerical time, RPM and temperature.
(NUL)XX:XX(H)(SP)(SP)XXXRPM(SP)(SP)XX.XC(SP)(LF)(CR)(EOT)
NUL . . . . . . . . . . . . . . . . . . . . .Null character (0)
SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Space
LF . . . . . . . . . . . . . . . . . . . . . . . . . . . .Line feed
CR . . . . . . . . . . . . . . . . . . . . . . . .Carriage return
EOT . . . . . . . . . . . . . . . . . . . . . . .End of text (4)
H . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Hold Mode
The SHKE420HP transmits time, RPM and temperature information one
minute after power is first applied to the unit, then every 60 minutes.
The shaker’s microprocessor responds to two ASCII commands from the
remote: DC1 (XON), and DC3 (XOFF)
DC1 (17, 11 Hexadecimal)
The shaker will transmit Time, Temperature and RPM data upon receiving
“DC1” (XON) and will restart 60 minute interval transmissions if they
have been inhibited by a “DC3” (XOFF).
DC3 (19, 13 Hexadecimal)
Receiving a “DC3” (XOFF) from the remote inhibits the shaker from
sending serial data indefinitely until a “DC1” (XON) is received.
Orbital Shaker 1-9Thermo Scientific
Section 1
Installation
RS-232 Interface
Connector (cont.)

An internal SPDT relay is provided to monitor alarms and is connected by
a RJ-11 (telephone style) jack on the rear of the cabinet. The remote alarm
provides NO (normally open) and NC (normally closed) output. Figure 1-
16 identifies the pin contacts. Figure 1-17 shows the location of the
Remote Alarm Connector.
A modular to modular cable (Stock No. 190388) and an RJ-11 telephone
style terminal converter (Stock No. 190392) or equivalent may be used to
convert the remote alarm output to a screw terminal connection. Refer to
Figure 1-18 below. When using the remote alarm contacts, loop and snap
the cable-mountable ferrite over the cable to reduce electro-magnetic
emissions from the unit (Figure 1-15). Attach the ferrite device close to the
unit.
1-10 Orbital Shaker Thermo Scientific
Section 1
Installation
Connect the Remote
Alarm
Figure 1-18. Alarm Contacts

Orbital Shaker 2-1Thermo Scientific
Section 2 Operation
The MaxQ SHKE420HP is a microprocessor-controlled benchtop orbital
shaker designed to accommodate a wide variety of flasks, test tubes and
other glassware. The control system is easily programmed and stores the
user-defined time, temperature and speed setting which remain in memory
even when the shaker is turned off and unplugged.
The computer-based speed controller continuously adjusts for line voltage
fluctuations and provides smooth start-ups and consistent RPM control.
The circuitry is designed to slowly bring the platform up to speed and
down to a stop to prevent liquid splashing from flasks or test tubes. A
convenience interlock requires that the lid be closed for the drive motor,
circulating fans and heating elements to operate.
• The microprocessor speed control system may take up to one minute
to bring the platform up to speed.
• Never leave the shaker unattended when starting it. Make sure all
flasks and test tube racks are firmly seated in the clips and check the
security of the flask clip and platform attachment screws monthly.
• The lid must be closed to operate the shaker.
• Do not operate the shaker at maximum RPM without a load.
Figure 2-1. Front View

2-2 Orbital Shaker Thermo Scientific
Section 2
Operation
Control Panel
Operation
The SHKE420HP Control Panel has a liquid crystal display and eight
operating keys or buttons which are identified by word and symbol.
During programming activities, the up and down arrows increase and
decrease the numerical values of time, platform speed, or temperature.
Pressing and holding either arrow will cause the values to scroll in that
direction. Pressing and holding for about five seconds will increase the
scrolling speed.
When programming the system configuration, the UP arrow returns the
display to the system’s Operating Screen showing the Time, RPM and
Temperature, while the DOWN arrow advances the display to the next
programming screen.
The alarm indicator and alarm silence button complete the shaker control
panel. When in alarm, the unit sounds an audible warning and flashes the
three red indicators. Pressing the Silence button turns off the audible
portion of the alarm. However, the three flashing indicators continue to
flash until the alarm condition is corrected. The audible warning will
sound again in about fifteen minutes if the condition continues.
The alarm features are discussed in more detail in the Configuration
section of this manual.
The MaxQ Orbital Shaker may be operated as soon as the platform is
installed, the unit is plugged in, and turned on.
Note At power up, the screen at the right
briefly appears. s
Pressing Start and Stop will operate the shaker at the factory settings shown
in Figure 2-2. When starting, the Actual numbers along the top of the
liquid crystal display will differ from the Setpoint values shown along the
bottom. These numbers will change as the unit begins to operate.
Actual
Speed Temp C
o
TimeSilence
Setpoints
00:00
Hold 100
000 37.0
37.0
START
STOP
Figure 2-2. Control Panel
Quick Start-Up

Orbital Shaker 2-3Thermo Scientific
Section 2
Operation
Factory (Default)
Settings
Time - With the time set at Hold, the time display in the upper left por-
tion of the screen begins to count upward, showing the total operating
hours and minutes. The system resets to 00:00 whenever the unit is
stopped and restarted, using the Stop and Start buttons. The unit will
not reset if the unit is turned off and on using the power switch, or if the
cover is repeatedly opened and closed.
Speed - The Actual speed will display zero RPM’s and will gradually rise
as the platform begins its motion.
Temperature - The temperature, shown in the upper right portion of the
liquid crystal display, will indicate the actual ambient temperature inside
the cabinet and will slowly move toward the 37° setpoint.
The values shown in Figure 2-2 are set at the factory and are considered
default values. Other factory settings are shown in the table following.
To get the most from the shaker’s microprocessor-based technology, the
SHKE420HP can be easily programmed to meet the most demanding
laboratory requirements. The following sections outline the procedures for
changing the settings and for programming the shaker control system.
When first turned on or when the shaker is operating, Temperature, Time
and RPM values are displayed on the LCD. A typical screen is illustrated
in Figure 2-2. For convenience, this is called the Operating Screen
throughout these instructions. All programming or setting changes start
from this screen.
The instructions to program the SHKE420HP are written in a step-by-
step format. For convenience, the instructions begin and end at the
Operating Screen.
Quick Start-Up (cont.)
Change Temperature,
Speed, Time Settings
Table 3-1. Defaults
Function Default
Audible Alarm ON
RPM Tracking Limit (fixed) 5
Temperature Tracking Limit 10°C
Over Temperature Shut-down 83°C - 85°C
All Remote Alarms ON