Scientific Industries SI-1200, SI-1201, SI-1202, SI-1203, SI-1204 Instruction Manual

ENVI

R

O-GENIE

®

OPERATING INSTRUCTIONS

Models SI-1200 through SI-1205

U.S. PAT 5,918,979
U.S. PAT 6,962,433

70 Orville Drive, Bohemia, NY 11716 U.S.A.

Phone: [phone] • Fax: [phone] Toll Free: 888-850-6208

Customer Service: [e-mail]

www.scientificindustries.com

®

ENVIRO-GENIE

Environmentally Controlled Benchtop

5-in-1 Refrigerator / Incubator /

Rotator / Rocker / Stirrer

The Enviro-Genie is a Refrigerator / Incubator /
Rotator / Rocker / Stirrer for the study of micro­organisms and tissue cell growth under strictly
controlled conditions of temperature and agitation.
Designed to provide the security of precise
temperature control and uniformity for demanding
incubation/refrigeration applications without taking
up a great deal of space. It performs membrane­based assays/washings and hybridizations more
efficiently. Chamber air is gently and continuously
circulating at a rate that ensures the temperature
consistency and uniformity of all test samples.
Shatter resistant viewing window allows for
inspection of samples without affecting the
chamber environment.

Microprocessor control easily achieves desired
rotating, rocking, and stirring speed; temperature;
and time; all of which are shown on a large, easy to
read display for accurate reproducible conditions.
Visible and audible alarms for both temperature
and time.

FEATURES:

• 4°C to 75°C precise temperature range

• Thermo-electric (Peltier) refrigeration & heating
– no compressor

• Microprocessor controls allow for
accurate, reproducible conditions

• Economical, space saving, and secure

SPECIFICATIONS:

Temperature and Settings

• Heating to 75°C

• Cooling to 4°C

• Accuracy ±0.2°C

• Uniformity ±0.5°C

• Resolution 0.1°C

• Stability ±0.1°C

• Time: Programmable to 99 hours

• Alarms: Visible & audible, temp & time

2-Year Warranty

Rocking

• 2-70 cycles per minute

Rotating

• 1-35 RPM

Stirring

• Capacity: 2 containers (up to I liter each)

• Speed: 1-2000 RPM

• Stir Reversing: variable for 1-60 seconds

Size

• Overall: 495mm x 622mm x 366mm
(19.5” x 24.5”x 14.5”)

• Chamber: 254mm x 362mm x 260mm

(10” x 14.25” x 10.25”)

• Chamber Volume: 24 Liters

Electrical

• 120 Volt AC, 5 Amp (SI-1200)

• 230 Volt AC, 2.5 Amp (SI-1201,
SI-1202, SI-1203, SI-1204)

• 100 Volt AC 5 Amp (SI-1205)

(Nominal voltages not to vary by more than 10%)

Y

2

This symbol on the Enviro-Genie means:
Attention: Refer to accompanying documents.

OPERATING INSTRUCTIONS

CAUTION! Failure to follow operating
instructions can compromise the user’s safety.

BUTTON FUNCTIONS

UP and DOWN buttons are used for:

• Moving through the menu

• Changing parameter value
OK button is used for:

• Selecting a menu from the display

• Confirming a chosen parameter value and
leaving the current menu

NEXT button is used for going to the next
parameter of the current line.
PREVIOUS button is used for returning to a
previous parameter of the current line.
MIXER ON/OFF button is used for starting/stopping
the mixer.
TEMP ON/OFF button is used for starting/stopping
the temperature regulator.
START/STOP button is used for starting/stopping
the timer.

DISPLAY CONTENTS

Power on the Enviro-Genie (front rocker switch
below the control panel). The display will show the
following:

After 5 seconds the display will show:

LINE 1 PARAMETERS

MIXER MODES

The Enviro-Genie has 4 Mixer Modes.

STIRRER
STIRRER/REV
ROTATE/ROCK
OFF (Environmental Chamber - no mixing)

REV. TIME

Displayed only when the Mixer Mode is
STIRRER/REV and programs the reverse stirring
time in seconds.

SPEED
STIRRER or STIRRER/REV MODE: display

shows XXX revolutions per minute.
ROTATE/ROCK MODE: display shows XX/XX –
the first set of values are for Rotate and the second
set for Rock.
OFF: display is blank.

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LINE 2 PARAMETERS

MEAS: display shows XX.X - the current

temperature in the environmental chamber.

LINE 3 PARAMETERS

SET: display shows XX.X – the desired

temperature in the environmental chamber.

ALARM: display shows ±1°C thru ±9°C or NO.
Alarm will sound if the chamber temperature
deviates from your set temperature by the tolerance
selected or will not sound if the alarm is disabled
(NO).

LINE 4 PARAMETERS

TIME: display shows XX.XX.XX – the desired time

in hours, minutes, seconds – counts down when
cycle is started pressing ON/OFF button.

TIMER MODES

The Enviro-Genie has 4 Timer Modes:
OFF – expiration of time does not stop the mixer

function or temperature regulation.
MIXER ONLY - expiration of time stops the mixer
function.
TEMP ONLY – expiration of time stops the
temperature regulation.
MIXER/TEMP – expiration of time stops both the
mixer function and temperature regulation.

RANGE OF PARAMETER CHANGE

TIME: 00:00 to 99:59 in 1 minute increments.
REV TIME: 1 to 60 seconds in 1 second

increments.

TEMP: 4.0° to 75.0°C in 0.1°C increments.
SPEED: STIRRER and STIRRER/REV modes –

1 to 2000 in 1 RPM increments (1-10) and 10 RPM
increments (10-2000) .
ROTATE/ROCK mode - 1/2 to 35/70 in increments
of 1.

MIXER OPERATION

The mixer can be turned on by pressing the MIXER
ON/OFF button or the START/STOP button (if

parameters are set).
The mixer can be stopped by pressing the MIXER
ON/OFF button or, if the time parameter expires,

the unit will turn off automatically. While the mixer
is not working, the MIXER ON/OFF button LED will
not be lighted.

TEMPERATURE REGULATOR OPERATION

Temperature regulation can be turned ON/OFF by
pressing the TEMP ON/OFF button or the
START/STOP button. While the temperature
regulation is working, the TEMP ON/OFF LED will
be GREEN.
After the desired temperature has been reached,
should the temperature deviate from the range set
in the ALARM parameter, the TEMP ON/OFF LED
will turn RED and the alarm will sound every 60
seconds. Once the desired temperature is
achieved again, the LED will turn GREEN and the
alarm will stop.

TIMER OPERATION

Timer can be switched on only by pressing the
START/STOP button. While the timer is working,
the START/STOP LED is GREEN. After the set
time has expired, the START/STOP LED will blink
and an alarm will sound every 15 seconds. The
time parameter will start to accumulate and
represent the amount of time that has expired since
the set time elapsed.
Pressing the START/STOP button will stop the time
from accumulating, the START/STOP LED will turn
off and the time display will show the last value set
in the time parameter.

CALIBRATION MODE

The Enviro-Genie is electronically factory
calibrated and should not need calibration, nor is it
recommended. However, should the need arise,
the unit may be calibrated, as follows:

In order to calibrate, you will need to make an
independent measurement of the chamber
temperature. Make sure the thermometer is
accurate! Generally speaking, glass thermometers
found around the lab will be less accurate than your
Enviro-Genie. Good, certified glass or digital
thermometers are available from laboratory supply
dealers. A thermocouple wire may be passed
through the door seal and will not affect
performance.

Measure the temperature in the chamber via the
lab thermometer, after chamber temperature has

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been allowed to settle for twenty minutes. Note the
difference in temperature between Enviro-Genie
displayed temperature and your lab thermometer
temperature (ex. Enviro-Genie display reads

37.5°C, lab thermometer reads 37.0°C; difference
is –0.5°C). This difference is the calibration value
to be entered.

To access the calibration menu, turn the unit OFF.

Press and hold the PREVIOUS button while
simultaneously turning the unit ON.

The parameters on the display show:
MEAS: XX.X – current temperature in the chamber
read by regulatory temperature sensor.

SET: XX.X – calibration temperature setting in °C.
OFFSET: X.X – offset from the temperature setting.

The cursor on the display will blink at the value of
the SET calibration point. Use the UP and DOWN
buttons to adjust your desired SET point. After
pressing the OK button, the temperature regulator
will turn on and the cursor on the display will blink
at the value of the OFFSET point. Wait until the
MEAS and SET values are equal (approximately 20
minutes). Compare the temperature read by the
unit temperature sensor, MEAS, and the
temperature read by the lab thermometer. If the
two values are different, adjust the OFFSET, using
the UP and DOWN buttons, to make them equal.
Wait 20 minutes. Repeat this procedure until the
temperature sensor reading equals the lab
thermometer reading.
Press the ОК button. The display will move to the
next menu.
Use the UP and DOWN buttons to choose:

SAVE&EXIT, EXIT or RESTORE FACTORY.
SAVE&EXIT saves the current value of the set

temperature offset.

EXIT saves the old offset .
RESTORE FACTORY resets the set offset.

After pressing the ОК button, the device restarts
and goes to a normal working mode.

If the OFFSET is 0 °C , the display (top right)
shows FACTORY. If the OFFSET is a value other
than 0 °C, the display shows USER.

RANGE OF OFFSET

−2 to +2 °C in 0.1 °C increments.

MIXING MODES

MAGNETIC STIRRING

Enviro-Genie comes equipped with two magnetic

stirring platforms, located at the bottom of the
chamber. The stirrers are centered on the raised
portions of the chamber bottom. The stirrers both
operate at the same settings at all times. In
general, the highest speeds can only be achieved
with smaller stir bars with non-viscous liquids.

If Rotating/Rocking Magnetic Platform is
installed remove the platform prior to using
magnetic stirrers (see rotating/rocking).

STIR REVERSE

Enabling “Stir Reverse” causes the stir bar to
reverse direction at a rate set by the user. The stir
bar is gently ramped down in speed to a stop, then
ramped up to speed in the opposite direction. Time
between reversing is adjustable from 1 to 60
seconds.

NOTE: If a very short stir reversing time is used in
conjunction with a very fast stir speed, the

commanded speed may not be attained. The
system will not have time to ramp up to speed.

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