Benchmark Scientific SB-12L User manual

Operations Manual
Part Number: SB0012

SB-12L Shaking Water Bath
Benchmark Scientific SB-12L Shaking Water Bath V.1 2/11
1. General Information and Precautions
●Please read this manual in its entirety prior to operating the SB-12L shaking water bath
from Benchmark Scientific. The following pages include instructions for proper use. Misuse
may cause damage to the unit, as well as harm to property and life. Please store this
manual in a safe place for future reference.
.
●The following marks are used to indicate safety warnings and precautions.
1.1 Precautions when connecting the power cable
Please ensure that proper electrical conditions and voltages are met prior to plugging in
and powering on the unit. Failure to comply may result in critical damage to the instrument
or fire.
Leave a 20cm space between the instrument and the base of the plug. Pressure to the
base of the plug may cause damage to the instrument or electrical fire.
Only use the power cable that was included with the SB-12L shaking water bath. Use of
other cables may cause damage to the instrument or electrical fire. Please contact
Benchmark Scientific if a replacement is required.
Please clean cable with a damp rag and allow drying as needed. Foreign substances on
the plug may increase the risk of fire.

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Do not over bend or fold the power cable as this may cause a breakage in the line and
result in fire.
Never plug inor operate the instrument with wet hands as this mayresult inelectrical shock
If the instrument appears damaged, or is not working in proper order, please contact
Benchmark Scientific immediately.
If you see or smell smoke coming from the unit or cord, witness fire, or if the instrument is
operating abnormally, please unplug the instrument immediately. Contact Benchmark
Scientific as soon as possible.
1.2.Prior to installation
Ensure that the unit matches the voltage and hertz supplied by the wall outlet. Failure to do
so may result in damage to the instrument or electrical fire,
Do not install or use in a wet, damp, or overly humid location. Moisture may damage the
instrument and cause electrical fire.
Do not place instrument in direct sunlight or an overly warm location. Recommended
operating temperature is 20°C to 30°C.
Do not use instrument with flammable substances.
Install on flat, even surface. Failure to do so may affect the performance of the instrument.

SB-12L Shaking Water Bath
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Instrument should maintain an upright position. Do not store upside down or on the side
as this may cause internal damage to the shaking mechanism.
Ensure that the hinged lid is secure prior to moving the unit. Failure to secure the lid could
cause unexpected movement and damage to the instrument or cause bodily harm to the
user.
1.3 Prior to use
Do not attempt to disassemble or repair this instrument. Incorrect repairs may cause
irreparable damage to the instrument or injury to the user. Evidence of disassembly will
void all manufacturer warranties, implied or explicit.
Only use this instrument for its intended purpose.
Do not use near any combustible sprays or liquids.
Use a damp cloth to clean the control panel and heating element. Do not allow liquid or
sample to soak the control panel as this may cause damage to the instrument.
Please disconnect the power supply when the unit is not in use for extended periods of
time.
Always fully support the lid when closing the instrument. Do not allow the lid to fall or be
slammed down as this may damage the instrument.
Please clean silicone seal surrounding the heating chamber regularly with a damp cloth
to prevent corrosion. Failure to do so may cause damage to the seal and affect the
performance of the instrument.

SB-12L Shaking Water Bath
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1.4 Please ensure a proper ground connection
Please ensure that this product is connected to a ground prior to operation
If no ground is available at the facility, please connect the instrument to an external
grounding mechanism.
Do not ground the instrument to the following; gas pipe, water pipe, pipe, lighting rod,
telephone wire etc.
* An incorrect ground connection may result in fire.
2. Features & Specifications
2.1 Features
●An advanced micro-processer confirms and maintains temperature setting and shake speed
while unit is in operation.
●Brushless DC motor provides low noise and no vibration.
●LED indicates temperature, speed, time and state of power failure.

SB-12L Shaking Water Bath
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2.2 Specifications
Items
Unit
SB-12L
Motion
Orbital
Temp. Range
°C
Ambient +5°C 80°C
Temp. Accuracy
°C
±0.3°C at 37°C
Motor
Plate Type Brushless DC Motor
Orbit Diameter
Mm
25mm
Speed Range
Rpm
30 –200 rpm
Time Range
Continuous or up to 47h 59min
Controller
Microprocessor Digital PID
Bath Capacity
Liter
12 Liters
Dimensions
Mm
310(w)x345(d)x260(h)mm
Power
V/Hz
110/220V, 50/60Hz, 300w
Weight
kg
14kg
2.4 Control panel
A B C D E F G
A
MODE SELECTION
Button for selecting RPM and TIME
B
RPM/TIME SET
Button for storing RPM and TIME
C
UP, DOWN
Button for adjusting RPM and TIME value
D
START/STOP
Button for starting and stopping
E
HEAT PILOT LAMP
Display to show heating
F
TEMP. SET
Button for input temperature

SB-12L Shaking Water Bath
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G
UP, DOWN
Button for adjusting temperature value
3. Operation
1) Fill the chamber with DI or tap water until it is at least half-way full.
* Temperature control will not be accurate if the chamber is less than half full.
*
Please ensure the unit is switched to the off position before plugging in.
2) Plug the unit into a wall outlet with the appropriate power supply and ground. Position the power switch
(located on the right of the unit) to the on position.
* The SB-12L will begin to heat approximately 30 seconds after the unit is switched on.
Never operate the water bath when the water level is not above the minimum marking.
Failure to do so may result in damage to the heater.
3) Speed (RPM) Set-up
RPM and Time are only adjustable when the instrument is stopped, or in stand-by mode.
If unit is in operation, please press the stop key to adjust these settings.
(1) Press the “RPM/TIME” key for approximately 1 or 2 seconds until LED displays
“r 000” as below.
Do not set RPM to 000 or under 30 rpm. This may result in a shaking error.
(2) Press the “SET” key to adjust the RPM. The display will begin to flicker.

SB-12L Shaking Water Bath
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You can set the RPM using UP(▲), and DOWN(▼) key.
Press “SET” key again RPM adjustment is complete; the LED will display “r SAVE” as seen
below.
* RPM set point range is from 30 to 300.
* After set-up is finished, push the start/stop button to begin run.
4) Time Set-up
RPM and Time are only adjustable when the instrument is stopped, or in stand-by mode.
If unit is in operation, please press the stop key to adjust these settings.
(1) Press the “RPM/TIME” key two times for approximately 1 or 2 seconds until LED displays
“t 00.00” as below.
(2) Press the “SET” key. The LED will begin to flicker allowing for adjustment. Push the
UP(▲) DOWN(▼) key until desired set point time is reached.
Set the hour first by using UP(▲), DOWN(▼) key until desired time is reached and press “SET”
key. Set the minutes by using the UP(▲), DOWN(▼) key after setting the hour.
Press the “SET” key again after setting time (hour and minute), and the LED will then display as
“t SAVE” as shown below.
* The time set point range is a maximum of 47 hr 59 min.
*The SB-12L can be used continually by setting the time to 00:00:00.
tEnd will be displayed when unit is set in continuous mode, however, shaking will continue until
operation is ended by user.

SB-12L Shaking Water Bath
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5) Temperature Set-up
(1) Toggle the power switch to the on position. TheLED will display the current chamber temperature.
(2) Press and hold the “SET” key. The LED screen will display “Set-up” temperature and flicker
continually.
(3) Adjust the temperature using the UP (▲) and DOWN (▼) key until desired
Set-point temperature is reached.
(4) Press the “SET” key again to store the desired temperature. The screen will stop flashing when
the temperature has been confirmed.
.
* If you do not press the “SET” key after selecting the new temperature, it will not be stored.
* Set-up temperature range is Ambient +5℃to 80℃.
* Appropriate water level is 2/3 full (if water level is low, the temperature on the display will not
be accurate.
If temperature control is not needed, set the temperature below ambient.
Never operate the water bath when the water level is not above the minimum marking. Failure to do so
may result in damage to the heater.

SB-12L Shaking Water Bath
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4. Warning Messages
1) This message may be displayed when:
- RPM is set to "0" or less than minimum RPM.
- The platform is blocked.
- Solution: Manually move the platform while pushing the "STOP" button simultaneously.
Than push the "SET" button to increase speed above 30 rpm.
2) This message may be displayed when:
- If weight is suddenly removed from a shaking platform.
- When the platform is manually mover faster than RPM which was set.
(This message may occur from below200 RPM)
- Solution: This message will automatically be resolved after three minutes, or with a manual restart
3) This message may be displayed when:
- The instrument has completed a set time cycle.
4) This message may be marked when:
- There is a power failure during operation.
- Solution : Press start when power is restored and re-enter desired settings..

SB-12L Shaking Water Bath
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5. Service & Check Point
Service should only be performed by qualified service personnel.
Before replacing any electrical or mechanical components, disconnect the unit from its
electrical power source. If electrical power is required for service, exercise extreme caution
as LINE VOLTAGE is present.
1) If the instrument is not working, please troubleshoot as follows:
(1) Check the electrical connection
Please disconnect main power cable and then reconnect it to confirm that it is plugged in
securely.
(2) Voltage supply
Please check the voltage supplied to the instrument.
(3) Check the fuse.
Warranty
The SB-12L includes a two year warranty from the purchase date. Benchmark Scientific reserves the right to
repair or replace the unit at its sole discretion. Any disassembly or evident misuse of the instrument will void
all warranty. For service please contact Benchmark Scientific: