Fisher Scientific Fisherbrand Isotemp RT 11676259 User manual

Operation Manual
Isotemp RT
Hotplate Stirrer
9240-11-012 V01 12/01/17

This manual cover the model is shown below
NA Model
EU Model
Voltage
Description
11676259
15316607
230V-EU, UK, ANZ/CN
Isotemp RT HPS 230V
11676260
N/A
120V-US
Isotemp RT HPS120V

Preface
Important Before using this product, read this entire operation manual carefully.
Users should follow all of the operational guidelines contained in this manual and
take all necessary safety precautions while using this product. Failure to follow these
guidelines could result in potentially irreparable bodily harm and/or property damage.
Caution All internal adjustments and maintenance must be performed by qualified service personnel.
Material in this manual is for information purposes only. Fisher Scientific is committed to a continuing
program of product development and improvement, and reserves the right to change information, such as
specifications, appearance, and dimensions, described in this document without notice. Fisher makes no
representations or warranties with respect to this manual. In no event shall Fisher be held liable for any
damages, direct or incidental, arising out of or related to the use of this manual.
No part of this manual may be reproduced or transmitted in any form or by any means, including
photocopying, recording, or using information storage and retrieval systems, for any purpose other than
the purchaser's own use, without the express written permission of the manufacturer.
Any other product names and services identified in this manual are trademarks or registered trademarks
of their respective owners. No such use, or the use of any trade name, is intended to convey
endorsement or other affiliation with Fisher Scientific.
©2017 Fisher Scientific. All rights reserved.
ⅰ

Preface
This manual contains important safety and operation information. You must carefully read, understand,
and follow all the instructions in this manual prior to operating this instrument. Keep this manual in a safe
place nearby for reference and make it easily available to all users.
1) This manual highlights DANGER/WARNING/CAUTION/NOTICE alerts to prevent injury or property
damage and also to achieve optimum performance of your instrument.
2) These alerts are classified into four types in this manual depending on the importance and the risk
levels as described below:
Symbols
Meaning
Indicates a hazardous situation which, if not avoided, will
result in death or serious injury.
Ignoring this warning could cause serious injury or even
death.
Ignoring this caution could cause injury or property damage.
Ignoring this notice could cause operational problems.
3) The claim which is out of the quality guarantee published by the Manufacturer is out of Manufacturer’s
responsibility.
4) The damage which is from unexpected fault or damage of user by Acts of God is out of Manufacturer’s
responsibility.
ⅱ

Table of Contents
Section 1
Warning and Cautions -------------------------------------------
1-1
Section 2
General Description ----------------------------------------------
2-1
Features ---------------------------------------------------------------
2-1
Ease of Use ------------------------------------------------------------
2-3
Durability ---------------------------------------------------------------
2-3
Construction -----------------------------------------------------------
2-4
Section 3
Unpacking and Installation --------------------------------------
3-1
Installation Environment ----------------------------------------------
3-1
Location Conditions --------------------------------------------------
3-2
Connecting to Main Power Supply ----------------------------------
3-2
Section 4
Control Panel -----------------------------------------------------
4-1
Heater Operation ------------------------------------------------------
4-2
Stirrer Operation ------------------------------------------------------
4-3
Section 5
Maintenance ------------------------------------------------------
5-1
Cleaning Product -----------------------------------------------------
5-1
Relocation -------------------------------------------------------------
5-2
Keeping Product ------------------------------------------------------
5-2
Section 6
Trouble Shooting -------------------------------------------------
6-1
Section 7
Accessories -------------------------------------------------------
7-1
Support Rod Assembly ----------------------------------------------
7-1
Transparent Shield & Heating Bath Assembly ----------------------
7-2
Section 8
Technical Specifications -----------------------------------------
8-1
Disposing of the Unit ---------------------------------------------------------
8-2
Section 9
Warranty Information ---------------------------------------------
9-1

Section 1 Warnings and Cautions
Ignoring the following warnings could cause serious injuries or
even fatal accidents.
Always wear proper protective gear (such as goggles, gloves, masks or
an apron) when using this instrument.
Never install or use this instrument in explosive atmospheres.
Never use the instrument to heat flammable liquids.
Never install this instrument near to hazardous or flammable
substances.
Never immerse this instrument in water or operate it under water
Never reach for this instrument if it has fallen into water.
Check electrical requirements described in this operation manual or on
the ID plate of this instrument before use. Connect this instrument to a
dedicated power outlet nearby.
Make sure to connect this instrument only to properly grounded power
outlets to protect you and your instrument. Do not ground to gas pipes
or water pipes.
Do not install this instrument closer than 30 cm (12 inches) to a wall of
combustible material. And observe the minimum distances (in general,
30 cm) from other devices.
If you observe a strange smoke, odor or noise from the instrument,
unplug the power cord immediately and turn off the main power switch.
After the smoke or odor disappears, contact your dealer or Fisher
Scientific if any repair is required.
Do not disassemble, repair, or modify this instrument on your own.
Doing so will void your warranty and may result in injuries or product
damages.
1-1

Section 1
Warnings and Cautions
Ignoring the following cautions could cause injuries or property
damages.
Do not touch the top plate or any object near it even when the heater is
turned off. You may get burned due to residual heat.
After using this equipment, make sure to turn off the main power switch
and also to disconnect the power cord from the power outlet for the
safety of other users.
Do not place heavy objects, including this equipment, on top of the
power cord and do not strip, scratch, bend, twist, pull, or heat the power
cord. Adamaged power cord is a fire and electrical shock hazard.
Do not allow moisture or water to get into the instrument. Fire or
electrical shock may result.
Beware of the effects of the magnetic field generated by this
instrument. Magnetic field can affect certain devices such as cardiac
pacemaker, data storage sample, and so on.
Make sure to set up your instrument on a flat, stable, clean, non-slip,
dry, and fireproof surface inside a lab with proper safety measures.
Do not place any device which can be affected by the motor vibrations
near this equipment.
Do not touch the power outlet, power socket, or power cord with wet
hands. And make sure to connect the power cord directly and firmly to
the power outlet and power socket.
Do not put or insert any objects (especially if conductive or flammable)
inside this equipment.
Beware that mechanical shock or vibration can damage this equipment
and pay extra attention while moving it. Damages caused by
mechanical shock or vibration may result in injury or fire.
Do not impact the heat sink. You can damage the equipment or get
injured.
Do not install this equipment near any device that generates high
frequency noise such as high frequency welding machines, high
frequency sewing machines, or SCR power controllers.
Before cleaning, make sure to unplug the power cord to avoid electric
shock or fire.
Do not use chlorine bleach, ammonia-based cleaners, abrasives,
ammonia, or metal scouring pads. Wipe with a soft damped cloth or a
sponge soaked in water or diluted neutral detergent.
1-2

Section 2 General Description
Congratulations of your purchase of a Fisher Scientific Isotemp RT
Hotplate Stirrer which is specially designed to provide maximum benefit
for your investment with respect to performance, safety, ease of use,
and durability at end of paragraph.
This Fisher Scientific Isotemp RT Hotplate Stirrer model boasts fast
heat up time (with 600W heating capacity), fast and precise stirring
speed (up to 2000 rpm), and large stirring capacity (up to 20L of H20 or
similar viscosity liquid).
Item/Model
Isotemp HPS RT
Dimension (W x D x H, mm)
161 x 290 x 100
Top plate dimension (Ø)
140 mm (5.5”)
Maximum heating capacity
600W
Current consumption (230V)
3A
Current consumption (120V)
5A
Features
Performance Features
•Virtually No Decoupling of Stir Bars
By adopting a special magnet with exceptionally strong magnetic
coupling power as well as smooth- start stirring mechanism, you will
experience virtually no decoupling of magnetic stir bars even with
viscous media or at high speeds.
•Quick Heat Up Time
High heat transfer rate of the tightly integrated structure of heater
and ceramic-coated aluminum alloy top plate allows quick heat up
(up to 350°C).
•Fast and precise stirring speed
Fast and precise stirring speed (up to 2,000 rpm) even at high
temperatures is made possible thanks to the combination of a
powerful and precise brushless DC (BLDC) motor and a special
magnet with extremely strong magnetic coupling power.
2-1
Section 2

General Description
Features(continued)
•Big Stirring Capacity
The BLDC motor and the special magnet also provide big stirring
capacity (up to 20 liter in case of water).
•Constant Stirring Speed
The feedback control design of this instrument allows you to have
constant stirring speed even when the viscosity of the media
changes during operation.
•Instant Halt of the Stirring Operation
Due to the exceptionally fast response characteristics of the BLDC
motor, the stirring operation stops instantly when the stirrer is turned
off.
Safety Features
•High Temperature Safety Limit of the Heating Plate
The default setting of the temperature limit of the heating plate is
350°C to protect you and your media.
•Multiple Overheat Prevention Measures
Built-in overheat prevention circuit will turn off the heater if the top
plate temperature reaches 450°C for any reason. In addition, if the
temperature of the main body exceeds 85°C, the overheat
prevention circuit stops heating to protect the motor and the PCB.
•Hot Top Warning Indicator
The top plate temperature can remain very hot for some time even
after the heater is turned off. To prevent injury or fire under such
circumstances, this instrument has a hot top warning indicator on
the control panel. This indicator will illuminate if the top plate
temperature is over 50°C. Even so, do not rely on this indicator
alone for your safety.
•Heating Bath (Patent Pending) (optional)
A specially designed non- slip heating bath shown below is available
as an option. To prevent unintentional slips of the bath during
operation, this bath has concavo- convex bottom shown below so
that it fits snugly on top of the top plate.
2-2

Section 2
General Description
Features(continued)
Figure 2-1. Heating Bath
•Transparent Shield (optional)
A transparent shield is also available to allow you to monitor your
operations more safely by shielding you against decoupled stir bars
or liquid splashes.
Ease of Use
•With two separate knobs for heat and speed control, you can set
heating level and/or stirring speed fast and with ease.
•Up to two support rods (optional) can be attached to hold various
kinds of devices such as temperature sensors, thermometers,
laboratory glassware, and so on.
Durability
•The ceramic coated top plate boasts high heat and corrosion resis-
tance and its white color is optimal for monitoring color changes of
the media during operation.
•The BLDC motor inside this instrument has unusually long lifespan.
•Spill-proof design of the main body protects the inner parts of the
instrument and the elevated control panel reduces the chances of
contact with liquid spills or leakage.
2-3

Section 2
General Description
Construction
Figure 2-2. Front Components
(1) Ceramic-coated Top Plate
(2) Heat Sink
(3) Heater Knob
(4) Control Panel (refer to Control Panel)
(5) Stirrer Knob
(6) Threaded Holes for Support Rods
(7) Main Power Switch
Figure 2-3. Back Components
(8) Power Socket
(9) Heating Bath (Optional)
(10) Support Rod (Optional)
(11) Transparent Shield (Optional)
2-4

Section 3 Unpacking and Installation
Upon receiving the instrument, check to ensure that no damage has
occurred during shipment. It is important that any damage that occurred
during shipment must be detected before unpacking. If such damage is
found, notify the carrier immediately.
After unpacking, check to ensure that all the following parts and
accessories are included in the package. If not, contact Fisher Scientific
immediately.
Item
Figure
Quantity
Description
Main body
1
--
Power cord
1
--
Operation
Manual
1
--
Magnetic bar
1
--
Installation
Environment
This instrument is designed for indoor use in laboratory environments
and to be operated only by properly trained staff knowledgeable in safe
laboratory practices. A suitable environment for installation is described
below.
Avoid direct sunlight
Room temperature should be 5°C ~ 40°C
Relative Humidity (RH%) should be less than 80%.
Altitude should be less than 2,000m.
3-1

Section 3
Unpacking and Installation
Location Conditions
•Never install or use this equipment in explosive atmospheres.
•Never install or use this equipment with or near to hazardous or
flammable substances.
•Never operate this instrument under water, where water can get into
the instrument, or in an excessively wet environment.
•Set up your instrument on a flat, stable, clean, non-slip, dry, and
fireproof surface inside a lab with proper safety measures.
•Do not install this instrument closer than 20 cm (8 inches) to a wall
of combustible material.
•Observe the minimum distances (in general, 30 cm or 12 inches)
from other devices. In addition, any device which can be affected by
the motor vibrations should not be placed near this equipment.
•Do not install this instrument near any device that generates high
frequency noise.
Connecting to Main
Power Supply
When connecting power, use only the power cord that came with your
instrument. The power connection procedures are as follows:
(1) Before connecting the power cord, make sure that the main power
switch is turned off.
(2) Plug the power cord into the power socket at the back of your
instrument as shown in the diagram below.
(3) Plug the other end into a properly grounded and dedicated power
outlet nearby.
•Check electrical requirements in the operation manual or on the ID
plate attached to the bottom of this equipment before use.
•Make sure to connect this equipment only to properly grounded as
well as dedicated power outlets to protect you and your equipment.
•In order to prevent fire or power cord damage due to overloading, do
not use power strips or improper extension cords.
3-2

Section 4 Control Panel
This Fisher Scientific hotplate stirrer is equipped with a user-friendly
control panel which has two big knobs, three operational status LEDs,
and a hot top warning indicator.
Figure 4-1. Control Panel
A. Hot Top Warning Indicator
B. Heater LED
C. Stirrer LED
D. Power LED
E. Heater Knob
F. Stirrer Knob
4-1

Section 4
Control Panel
Heater Operation
•To avoid fires or injuries, make sure that the temperature is kept
safely below the flash point of the media to be heated.
•Be sure to wear proper protective gear (such as goggles, gloves,
masks or an apron) when using this instrument.
•This instrument can reach temperatures in excess of 350°C at the
top plate surface. Touching such hot surface will cause severe
burns.
•Even if the instrument is turned off, the surface of the top plate and
the vessel on top of it will remain very hot for some time. Never
leave your instrument accessible to others while it is hot and never
touch it unless you are absolutely sure.
•Although this instrument has a hot top warning indicator, which is
turned on when the top plate temperature is over 50°C, do not rely
on this indicator alone for your safety.
EXTREME CAUTION IS REQUIRED AT ALL TIMES!
•To avoid overheating of the media, do not set the heating level too
high from the beginning. Gradual increase of the heating level is
always recommended.
The procedures of the heating operation are as follows:
(1) To activate the heater, turn the heater knob clockwise. With a ‘click’
sound, the heating starts immediately. Set the heater knob at the
desired position. (The heater LED will illuminate only when power is
supplied to the heater. However, if you set the knob at its maximum
position, then the heater LED will remain illuminated.)
Note that the hot top warning indicator will be turned on if the top
plate temperature rises over 50°C.

4-2
Section 4
Control Panel
Heater Operation
(continued)
(2) If you want to turn off the heater, turn the heater knob counter-
clockwise until you hear the ‘click’ sound.
Stirrer Operation
•Never place a cold glass vessel onto a hot top plate.
•There is a danger of liquid spills if containers are over-filled and
stirred at high speed. Always ramp up stirrer speed slowly and never
stir more rapidly than necessary.
The procedures of the stirring operation are as follows:
(1) Before activating the stirrer, check whether the stirrer knob is at
the ’0’ position. If not at the ‘0’ position, turn the stirrer knob counter-
clockwise all the way until you hear the ‘click’ sound.
(2) To activate the stirrer, turn the stirrer knob clockwise. With a ‘click’
sound, the stirring starts immediately. To set the stirring speed, turn
the stirrer knob at the desired position. For your safety, it is highly
recommended to increase the stirring speed in a gradual fashion.
(3) If you want to turn off the stirrer, turn the stirrer knob counter-
clockwise all the way to the ‘0’ position until you hear the ‘click’
sound.

4-3
Section 5 Maintenance
Item
Inspection Interval
Daily
Weekly
Connection status of power cord or plug.
●
Damages in power cord or plug.
●
Damages or cleanliness of top plate.
●
Cleanliness of main body and accessories.
●
Damages in switches, buttons, LED’s, dial
knobs.
●
Heating capability check (up to 350℃).
●
Stirring capability check (up to 2000 rpm).
●
Assembly status of all parts or accessories.
●
Cleaning Product
•Never immerse this unit in water or any other liquid.
•Do not allow any liquid or wet material to get inside the unit when
cleaning.
•Do not reconnect this unit to power outlets until all cleaned surfaces
have dried.
•Do not use chlorine bleach, ammonia-based cleaners, abrasives,
ammonia, or metal scouring pads when cleaning.
•During cleaning and general operation, take care not to scratch the
surface of the ceramic-coated top plate as this could result in
subsequent thermal breakage.

5-1
Section 5
Maintenance
Cleaning Product
(continued)
Always make sure to keep top plate, main body, and accessories clean.
Dirt and other foreign substances can cause fire or electric shock.
Before attempting cleaning,
- Disconnect the power cord from the power outlet and ensure that the
instrument is cool enough,
- Wipe with a soft dry cloth first to remove any foreign matter and, if not
enough,
- Wipe with a soft damp cloth or a sponge soaked in water or diluted
neutral detergent when necessary.
Note that cleaning is made much easier if spills are attended to
promptly.
Relocation
If you need to move the instrument to another place,
(1) Disconnect the power cord from the power outlet,
(2) Pack the instrument and its accessories into the original packaging
or any other suitable container before moving.
•Pay attention to avoid mechanical shock or vibration while moving
the instrument. Damages caused by mechanical shock or vibration
may result in injury or fire.
Keeping Product
If you know you will not use this unit for an extended period of time,
(1) Disconnect the power cord from the power outlet and
(2) Clean the instrument with soft cloth.
(3) Pack the instrument properly and make sure to store it in dry place.

5-2
Section 6 Trouble Shooting
Electrical Trouble
Causes
Solution
No power
Unsuitable power supply
Meet the electrical requirements of this
instrument before use.
Power cut-off by a circuit
breaker or power blackout
Find out why blackout or cut-off happened and
restore power. If there is a short circuit or
leakage, trace the source of the problem and fix
it.
Loose power connection
Reconnect the power cord firmly to the power
outlet as well as to the power socket at the back
of the instrument.
Damages in power cords,
power outlets or plugs.
Replace the damaged part with a proper one
Internal circuit failure
Contact Fisher Scientific for service.
Repetitive tripping of the
circuit breaker
Electrical overload
Disconnect all the appliances connected to the
breaker first and reconnect them one by one to
find the reason for the overload.
Internal circuit failure
Contact Fisher Scientific for service.
No operation with power
on
Power cut-off by built-in
overheat prevention
circuit
If the temperature of the main body exceeds
85℃, the built-in overheat prevention circuit
stops heating to protect the instrument.
In such cases, let the instrument cool down for
some time before power reconnection.
Internal circuit failure
Contact Fisher Scientific for service.

6-1
Section 6
Trouble Shooting
Trouble During
Operation
Causes
Corrective Action
No heat
Failure to push the
RUN/STOP Button
After pushing the heater ON/OFF button, turn
the heater knob.
Power cut-off by a circuit
breaker or power
blackout.
Turn off the main power switch and wait until the
heater cools down. Then, turn on the main
power switch.
Internal circuit failure.
Contact Fisher Scientific for service.
No or too slow
temperature change
during heating
Too low setting of the
heating level.
Turn the heater knob clockwise to increase the
heating level
Too much media.
Reduce the sample volume.
Internal circuit failure.
Contact Fisher Scientific for service.
Stir bar decoupling
Too much media.
Reduce the sample volume or increase the rpm
more gradually.
High viscosity of the
sample.
Increase the rpm more gradually or replace the
stir bar with a new one with less friction
resistance (e.g., cone type).
Decreased magnetic
strength of the stir bar.
Replace the old stir bar with a new one.
Knocking noise during
stirring
Uneven bottom of the
vessel.
Use a vessel with thin and flat bottom.
Loosened internal parts.
Contact Fisher Scientific for service.
Abnormal speed control
operation
Too much sample.
Reduce the sample volume.
Internal circuit failure or
damaged motor.
Contact Fisher Scientific for service.
Knob malfunction
Damaged knob.
Contact Fisher Scientific for service.
LED display malfunction
Damage due to chemical
spill or overheat.
Contact Fisher Scientific for service.