Cole Parmer 52411-30 User manual

52411Programvacuumoven_ver_1.0
Programmable Vacuum oven
User Manual
52411-30,-31,-32,-33,-34,-35

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1 Warranty
Thank you for purchasing a Cole-Parmer instrument. In normal use conditions, the instrument is
guaranteed for a period of 24 months started from the date of purchase.
The warranty is valid only if the product is original. It does not apply to any product or parts of it that
have been damaged due to incorrect installation, improper connections, improper use, accident or
abnormal conditions of operation.
The manufacturer declines all responsibility for damage caused by failure to follow instructions, lack
of maintenance and any unauthorized modification
2 Contents of package
The instrument is delivered complete with the following parts:
⚫Vacuum Oven (main unit).
⚫2 stainless steel wire shelves (3 stainless steel wire shelves with Bov-90)
⚫Power supply cable
⚫2 cores of fuse
⚫Connecting vacuuming pipes (interior diameter: Φ14mm thickness of the wall:8 mm)
⚫Wrench
⚫Vacuum pump(optional)
⚫User manual
3 Installation requirements and safety tips
3.1 Installation requirements
The instrument should be installed in follow conditions:
1. Ambient temperature between 41°F（5°C）and 104 °F（40°C）, and relative humidity maximum of
85%.
2. Atmospheric pressure: 86～106 KPa.
3. The instrument should be placed on a stable level with no serious dust, direct sunlight, or corrosive
gases indoor.
4. Leave enough space around the product (more than 50cm). Do not place the instrument below the
fire alarm.
5. Power feed between 110V～120V/60Hz.
6. Respect enough spaces around the instrument, and the weight of the instrument depends on
number of shelves. Make sure the shelves will not be bended or deformed. Samples must directly
with the shelf.

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3.2 Electrical Installation
THIS EQUIPMENT MUST BE EARTHED
Before connection please ensure that the line supply corresponds to that shown on the rating plate
located on the back of the unit.
Power requirements
Model
Wattage
Model
Wattage
Model
Wattage
52411-30
700W
52411-32
1400W
52411-34
2000W
52411-31
700W
52411-33
1400W
52411-35
2000W
Cord Connected Models
The unit will be supplied with a mains lead fitted with either US, EU, UK or Indian plug. Should the
lead not be suitable for connecting to the mains power supply, replace the plug with a suitable
alternative.
THIS OPERATION SHOULD ONLY BE UNDERTAKEN BY A QUALIFIED ELECTRICIAN
NOTE: Refer to the equipment rating plate to ensure that the plug and fusing are suitable for the
voltage and wattage stated
UK / EU mains cable wiring is colored as
follows:
Brown –Live
Blue –Neutral
Green/Yellow - Earth
US mains cable wiring is colored as follows:
Black –Live
White –Neutral
Green –Earth
Should the mains lead require replacement, cable of 1 mm2 /18 AWG, 1.5 mm2/14 AWG of
harmonized code HO5VV-F should be selected. This is dependent upon the power rating of the unit,
see Section 4.3.
Hard Wired Models
The unit is fitted with a suitable cable which should be directly connected to a suitable rated supply
terminal. (See wire colors above).
IF IN DOUBT CONSULT A QUALIFIED ELECTRICIAN

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3.3 Safety instructions
3.3.1 Danger！
(The improper use of this unit may cause property damage and/or personnel injury)
1. The Product must be safely grounded (make sure not to use the ZL or neutral line as the earth
wire).
2. Before use, make sure that the power supply has the voltage in compliance with the products’
requirements.
3. The product should be connected to a separate power supply outlet and both the plug and outlet
are properly earthed.
4. It is not allowed to pull out and plug in the power plug without turning off the switch.
5. Unauthorized extending, cutting, or changing the product’s power cable or line is prohibited.
6. Do not use the instrument for inflammable, explosive, evaporative and corrosive articles.
7. Unauthorized repair is not allowed, and authorized repair should be carried out by professionals.
3.3.2 Warning!
(Possible to cause losses to properties or injuries to personages)
1. Make sure to read and understand the Product’s Operating Instructions thoroughly before any
operation of the product.
2. 304 stainless steel is not acid-proof, so please note the anti-corrosion measures. And do not use
acidic medium box！
3. Carefully pulling the power table when taking out the power plug.
4. In any of the following cases, the power cord must be removed:
⚫Replacement of fuse.
⚫ending for checking and repair in case of any breakdown with the product.
⚫The product will not be used for a long period of time.
⚫In movement.
5. After the product is turned on, the upper deviation alarm function must be adjusted or confirmed.
3.3.3 Caution
(Abnormal operation may influence the products lifespan)
⚫The product should be placed on solid surface to keep it in horizontal.
⚫Respect 50cm minimum distance around the instrument to make sure it could be powered off
easily under emergency conditions.
⚫Aggressively opening or closing the door may cause damage to the door, oven or injury to users.

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4 Product introductions
4.1 Function introduction
①vacuum pump electrical outlet ②Air inlet ③Balance hole
④vaccum KF-25 Flange ⑤Observation window ⑥Door lock Handle
⑦pump switch and purge switch ⑧Vacuum guage
⑨Controller ⑩LED lights switch
Products sketch map
⑤
⑥
⑧
⑨
⑦
⑩
⑦
①
②
③
④

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4.2 Display and commands
4.2.1 Display introduction
①TEMP area (PV): Showing measured temperature.
②SET area (SV): Showing set temperature.
③Heating lamp: It lights up when it has heat output.
④TIME: Time display window, it will display running time or parameter value.
4.2.2 Command keys introduction
A Used for setting parameters, the parameter setting mode could be quit by pressing the set
button for more than 3 seconds or more.
B Used for moving the digits of setting value, internal parameters and checking ambient
temperature.
C Used for setting value, Modification of various parameters, or start / stop auto-tuning.
D Used for modifying set value, internal parameters or to check the remaining period.
E Press it for 3 seconds for operating or stopping the controller.
④
①
②
③
A
B
C
D
E

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4.3 Specifications
Product name
Vacuum Oven
Model
52411-30
52411-31
52411-32
52411-33
52411-34
52411-35
Chamber Volume
24L-
51L
91L
Temperature Range℃)
Amb+10℃~200℃
Amb+10℃~200℃
Amb+10℃~200℃
Temperature Range (℉)
Amb+18℉~392℉
Amb+18℉~392℉
Amb+18℉~392℉
Temperature Stability
±1℃/±1.8℉
±1℃/±1.8℉
±1℃/±1.8℉
Temperature Resolution
0.1℃/0.1℉
0.1℃/0.1℉
0.1℃/0.1℉
Max. degree of vacuum
133Pa
133Pa
133Pa
Fuse / Circuit breaker
120V-10A Circuit
Breaker,
220V - 10A, 5 x 20
mm, glass fast blow
120V-20A Circuit
Breaker,
220V - 15A, 6 x 32
mm, ceramic fast
blow
120V-20A Circuit
Breaker,
220V - 15A, 6 x 32
mm, ceramic fast
blow
Shelves
2
2
3
Work chamber material
stainless steel
stainless steel
stainless steel
Maximum of Shelves
3
5
6
Interior Dimension
(W*H*D, mm)
300*275*300
415*345*370
450*450*450
Exterior Dimension
(W*H*D, mm)
445*620*580
580*705*675
610*810*805
Interior Dimension
(W*H*D, in)
11.81*10.83*11.81
16.34*13.58*14.57
17.72*17.72*17.72
Exterior Dimension
(W*H*D, in)
17.52*24.4*22.83
22.83*27.75*26.57
24.02*31.89*31.69
Max. load
20Kg
20Kg
20Kg
N/W
60
95
145
Inert gas air inlet
has
has
has
Electrical Requirement
120V/60Hz
220V/50Hz
120V/60Hz
220V/50Hz
120V/60Hz
220V/50Hz
Power Consumption
700W
1400W
2000W
Cable Replacement
120V –14AWG
220V –1mm2/18AWG
120V –12AWG
220V –1.5mm2/14AWG

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4.4. Summary of structure and function
The vacuum drying oven (hereinafter referred to as the vacuum case) is bench structure. The
vacuum case consists of four parts: case, inner chamber (working chamber), vacuum pumping
system and temperature control system.
The case is made of quality thin steel sheet with bright color plastic surface. The inner chamber is
generally made of galvanized steel sheet or 304 stainless steel sheet. The inner chamber is in a
square of semi-circle corners, and there is super-fine mineral wool filled in between the inner and
outer case as heat insulating material. The door window is made of bulletproof glass OBW
(Observation Window) for convenient observing the samples drying process in the case. There are
one piece of thick armored glass and slide bush inside the case, which are used for connecting the
door, so the slide bush plus spring the armored glass and door seal can even the stress and the
firmly press the door to the rubber O-ring upon closing, without any air leakage in vacuum.
The vacuum pumping system is composed of vacuum pump (optional part), vacuum meter, vacuum
valve and balanced opening. According to user needs, the case can be equipped with dry filtering
tank (filter) or be provided with air inlet as an option (through which other gas can be input into the
working chamber). If the vacuum pump is selected at the user’s discretion, the pumping rate of
the vacuum pump must be ≥ 2L/s
The temperature controller is the main apparatus of the temperature control system, which is a
double-row LED MC smart controller composed of single chip unit and peripheral circuit. The Pt100
platinum is used as temperature-sensing element and the PID regulating mode is used to control the
heating system. The temperature control apparatus also has such functions as timing control,
temperature-control error correction and deviation alarming protection.
The heaters of resistance wire substructure are used for the electric heating system, which are all
mounted inside the shelf panels.
This instrument is advantageous for high temperature control accuracy, less overshooting, less
fluctuation and temperature deviation protection.

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5 Operation
5.1 Switch on
1. Connect the power according to the power outlet with a protective ground connection.
2. Turn on the instrument by pressing the ON/OFF Button and the screen will light up. The display
shows the initialization sequence before the instrument is ready to use.
NOTE: Every time you turn the instrument beeps intermittently, the icon of visual alarm and the word
“end” appear on the display, indicating that a heating cycle had been done before. Press any button
to silence the audible signal and the icon appears.
5.2Vacuum debugging
1) Models 52411-30,-31,-32,-33 use accessories vacuum pipe (inner diameter: φ16mm thickness: 10
mm) connected with the vacuum drying oven exhaust pipe (outer diameter: φ16mm) and a vacuum
pump (Air inlet outer diameter：φ16mm；Pumping rate≥ 2L/s）.（We recommend users to connect
drying chamber in middle）.
2) Close the door and screw to tight the handle, and close the balance port（twisted the hole on the
rubber stopper and the hole on tube core of balance port slant 180 °）, first turn on the vacuum pump
power switch，Then open the vacuum valve（Clockwise rotation of 90°）. The vacuum valve switch
may tight when first time to use, can rotating it with force. When the value of vacuum table reach to
-0.1Mpa（As Figure 2 red arrow Location）When users need close the vacuum pump，the vacuum
valve must be turned off first，then close the vacuum pump to prevent the oil of vacuum pump flow
back into the working chamber.
3) Vacuum Oven calibration: Operate the follow steps for calibrating the degree of vacuum.
①Turn on the vacuum incubator, then the power indicator light will turn on;
②The temperature controller will enter the self-check mode automatically after 5 seconds, and the
PV screen will show the measured temperature value. The SV screen will display setting temperature
value. At this time, at light will turn on, When PV＜SV, the heat light will turn on, it means enter
heating state.
Note: The vacuum gauge indicator does
not indicate the absolute value about
degree of vacuum, only indicates the
relative value about degree of vacuum.
You can see specific unit conversion in
this picture.

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5.3 Single work step setting
In the Programmable version the instrument can manage until 8 programs with 8 steps each one in
which temperature, timer and fan speed (if present) are settable.
Moreover them, it’s possible to set a simple work cycle at single work step, with temperature, timer
and fan speed (if present). This is called “PROG 0” .
.5.3.1 Time Settings
1．After confirming the temperature, the last value of the set time (timer) will start to flash. Set the
desired value (hh:mm) by pressing or keys. It’s possible for a quick movement between the
digits by using button.
2．Confirm the set value with another press of button.
NOTE: the value “00:00” indicates the operating mode is "continuous", that means once you start
operating cycle by the START / STOP button, the system will continues maintaining the set
temperature until it is stopped manually.
3．If you set the timer, such as one hour, the instrument will reach the set temperature and maintain it
for one hour.
5.3.2 Temperature Setting
1．When the instrument is switched on, press the button one time, and the set temperature value
will start to blink. Set the desired temperature value (in Celsius degrees) by pressing keys.
2．The button works for a quick movement between the digits.
3．Confirm the set value with another press of button.
5.3.3 Start / Stop Operation
1．After setting the operating parameters, press button for (about 4-5 seconds) to start the
heating cycle/cooling process with defined time in hh:mm or continue the process for (00:00). When
the word “END” disappears on the right corner of the screen, the message “RUN” will appear in the
left bottom and the system will display issues like contemporary, timer, temperature measured inside
the chamber.

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2. At any time, you can always manually stop the cycle by pressing the button for (4-5 seconds).
3. Once timer runs out or after manual stop, the instrument beeps intermittently, the icon of visual
alarm and the word "end" appear on the display. Pressing any button will silence the audible signal
and the icon appears.
NOTE: the acoustic signal will not end until it is stopped by the operator, but the heating cycle will be
terminated so the samples inside the instrument will remain exposed to the internal temperature of
the chamber.
5.4 Programs setting
5.4.1 Calling programs
When the instrument is switched on, in standby or during a work cycle both, pressing shortly one time
the SET/PROG button, the word “PROG” and the program number (see Picture 5) start to blink
together.
Calling the desired program by the keys. Confirm pressing shortly one time the
SET/PROG button. The selected program is ready to start..
5.4.2 Modify a program
To modify a program it’s necessary keep pressed for few seconds the SET/PROG button: the
word “PROG” and the program number start to blink together and after some moment only the
program number blinks.
Now it’s possible to choose the desired program to be modified by the keys and to
confirm it by a short press of SET/PROG button.
Then the instrument enters in the modification mode and the temperature value of the first step
blinks together the word “PROG” to indicate that you are in programming phase.
STEP 1
Set by the and SHIFT keys the temperature value of the first step. Press shortly

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SET/PROG to confirm it and pass to the next value (timer), always of the first STEP. Set by
the and SHIFT keys the desired timer value of the first step and confirm by a short
press of SET/PROG .
If the instrument is a forced air model, the next parameter to be set is the fan speed, adjustable by
the keys in (H=High, M=Medium, L=Low), otherwise you pass to STEP 2.
STEP 2
Set by the and SIFT keys the temperature value of the second step. Press shortly
SET/PROG to confirm it and pass to the next value (timer), always of the second STEP. Set
by the and SHIFT keys the desired timer value of the second step and confirm
by a short press of SET/PROG .
NOTE: if you do not want to use all 8 STEP of the program you are editing, it is necessary to
communicate to the instrument the end of the program. To do this, simply set in the next step after
the last step you want to use the time equal to "00:00
EXAMPLE
If the last work step you want to use is the fifth, it’s sufficient set in the sixth step the timer equal to
“00:00”, imposing in this way to the instrument to stop it at the end of the fifth step.
NOTE: to modify the program 0, recall it as explained in paragraph 5.3 and proceed to the various
parameters (temperature, timer) as shown in paragraph
5.4.3 Start/stop of a program
After setting the program, simply call one of them and press the START / STOP with long
pressure (4-5 seconds) to start the selected program.
The word "end" at the top right of the display disappears, the message RUN appears on bottom left
part and display shows simultaneously: program number, step in progress, timer, measured
temperature inside the chamber, set temperature and fan speed if present (see Picture 5).

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At any time you can always manually stop the cycle by pressing the START / STOP button
with long pressure (4-5 seconds).
Once the set program is finished or after a manual stop, the instrument beeps intermittently, the
icon of visual alarm and the word “end” appear on the display. Pressing any button will silence
the audible signal and the icon appears.
NOTE: the acoustic signal will not end until it is stopped by the operator, but the heating cycle is
terminated so for the samples inside the instrument will remain exposed to the internal temperature
the chamber
6Functions with password access
6.1 Access to menu with password
Simultaneously pressing the SET / PROG and SHIFT for few seconds, you can access
some functions and parameters that are password protected.
To access these submenus and avoid mistakenly entering in the operating parameters setting, it is
recommended to firstly press the SHIFT key, keep it pressed, and then press the SET /
PROG for few seconds.
After have made this keys combination, on the right top part of display instead of word TIME, “Lk”
(lock) appears close to “0000” (password). Below the passwords and access sequence to the
various parameters/functions
PASSWORD
FUNCTION/
PARAMETER
DESCRIPTION
0000
Pn
Number of program to which to apply the dy & Cy functions
Cy
Number of repetitions of the work cycle
dy
Delay of heating cycle start
0003
tm
Safety temperature limiter for samples protection
Po
Restart mode after absence of power supply
AL
Temperature range for over temperature alarm
Pb
Temperature offset on single point
PK
Temperature offset on the entire ramp
PA
Temperature offset of the room temperature probe

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6.2 Number of program to which apply the Delay and Cycle
functions
In the Programmable version it’s necessary to define to which program (from 1 to 7) apply the
functions of starting delayed (Delay) and repetition of cycle (Cycle).
To do that it’s necessary enter in the first submenu with password access (0000) and modify the
parameter Pn (program number) by keys and confirm the selected program by a short
press of SET/PROG button.
6.3 Repetition of a program
The instrument allows the repeating from one to more times of the selected program. After have
chosen the program to which apply the function by the parameter Pn it’s possible set the Cy value
(Cy)= 1, 2, 3,...with keys and SHIFT and confirm it pressing shortly SET/PROG
.
NOTE: it’s also possible set the continuous repetition of a program, setting it in continuous “loop”,
with the parameter Cy=0.
6.4 Delay of the program start
It’s possible to set a delay (hour and minutes) of the program start.
After have chosen the program to which apply the function by the parameter Pn it’s possible set the
desired delay value (hh:mm) pressing keys. It’s possible a quick movement between
the digits using the SHIFT button. Confirm the set value with another press of SET/PROG
button. The display comes back to the standby screen (see Picture 5). Pressing the
START/STOP button with long pressure (4-5 seconds) the instrument starts the program
but it doesn’t immediately heat: the word “end” and the set delay time alternately blink on the top
right part of display, counting the wait time until the real starting of the program.

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7Maintenance and Cautions
①After using each time, power off and open the balance opening, wait for the vacuity to return zero
before opening the case door (if it cannot be opened, wait for 5 minutes before opening again;
opening by force may damage the door handle)
②During the running process, follow the principles to open the pump: to run, turn on the vacuum
pump before opening the vacuum valve; before stopping, close the vacuum valve before turning off
the vacuum pump to prevent the vacuum pump oil from backflow into the chamber.
③Be attention to avoid any scald when drying the articles.
④In order to prevent the dried article from changing, upon drying, take care about the article with
light weight and small volume (as small particles) or dust in the working chamber, which may enter
through the air extraction port to damage the vacuum pump (or electromagnetic valve) in the process
of vacuuming. The product is provided with the filtering net to the vacuuming port at the bottom inside
the working chamber, which the user is requested to clean frequently to avoid affecting the effect of
air extraction.
⑤In case of stopping to sue for long, make sure to clean the product in and out, and pull out the
power plug and cover the anti-dust cover.
⑥If the environment for storage is highly humid, it is necessary to regularly (about 1 month) to
power on for heating up and dehumidifying the case.
⑦Make sure the technical requirement do not change before using the product..
⑧The parameters in ENGINEER SETUP menu inside the controller shall be adjusted subject to the
consent of the Service Center of the company or by the professionals.
⑨The aged door seal strips will cause improper sealing of the case and should be replaced
generally every six months.

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8Troubleshooting
. Failure phenomena
Possible reasons
Treatment
No power
The output power socket had
no power,
Check whether the lines are
connected well and whether
the socket is well.
The power plug is not inserted
well in the socket or the line is
cut off.
Re-insert the plug or repair the
line.
The fuse is broken or there is
no fuse.
Check whether there is any
short circuit; replace the fuse
(short circuit for apparatus
power transformer, short
circuit for heater, short circuit
for grounding and others short
circuit all can cause breaking
of fuse.
PV display”□□□□”
Temperature sensor Pt100 is
damaged
Check Pt100, replace it
Temperature sensor line is not
connected well.
Connect lines again.
The temperature does not
increase
The temperature does not
increase
Test scope of the apparatus is
not correct
Re-set again.
The set value is too low
Set temperature SV≥RT+18℉
RT is environment
temperature
The output circuit of the
apparatus is falling off.
Connect the lines again.
Temperature controller has no
output signal or is damaged or
the controllable silicon is
damaged,
Replace it.
The heater is damaged (short
circuit, or open circuit)
Replace it.
The temperature is out of
control , the deviation and
between tested temperature
and measured temperature
The temperature is out of
control or there is offset or
overshoot because of the error
between tested temperature
and real temperature
Use timing function or the
setting is not correct.
ST=0 or ST= (heating time
+constant temperature time
The output of temperature
controller is out of control.
Replace SRC
Pt sensor doesn’t connects
well.
Get rid of grounding
resistance.
Relevant parameters are not
correctly set.
Re-set relevant parameters,
such as P and so on.
There is big difference
No vacuum situation.
Vacuuming.

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between tested temperature
and real temperature.
The mercurial thermometer
head is not on the shelf.
Replace it.
The apparatus or parameter is
changing.
Re arrange Pb、Pk
parameters.
The cabinet cannot be
vacuumed.
The vacuum pump is not of
the correct model and size.
The vacuuming speed should
not be less than 2 L/S.
Various connecting pipe is too
loose.
Replace it.
The vacuum meter is
damaged.
Replace it.
The door is not closed well.
Adjust the door pin distance.
The door airproof rubber is
aged and lack of elasticity.
Replace it.
Air release valve and vacuum
vale is not in the correct place.
Adjust them.
Air leakage (the vacuum
degree decreases to 0.092
MPa from 0.1Mpa within 24
hours.
There is air leakage in various
connect pipes.
Check and replace it.
the distortion of heater ”O”
shaped airproof circle causes
air leakage.
Screw tight the heater seat (in
the back of the inner bladder.)
or replace “0” shaped airproof
circle.
The air release valve is not in
the right place.
Place it in the right place.
Common degree of vacuum unit conversion table:
KPa
〃Hg
mmHg
Atm
allowable
deviation
1（bar）
100
29.53
750
0.987
±2.5%
Conversion value
Item
Unit

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9Contact
United States –Cole-Parmer, 625 East Bunker Ct, Vernon Hills IL, 60061
T: 800-323-4340 E: [e-mail] W: coleparmer.com
EU –Antylia Scientific GmbH, Futtererstr. 16, 97877 Wertheim, Deutschland
T: [phone] E: [e-mail] W: coleparmer.de
UK –Antylia Scientific, 9 Orion Court, Abuscade Road, Colmworth Business Park, St Neots PE19 8YX
T: [phone] E: [email protected] W: coleparmer.co.uk
France –T: [phone] E: fr.sal[email protected] W: coleparmer.fr
Italy –T: [phone] E: it.sal[email protected] W: coleparmer.com