Ele 39-1300 User manual

Humidity Cabinet
39-1300, 39-1601
ELE International
Chartmoor Road, Chartwell Business Park
Leighton Buzzard, Bedfordshire, LU7 4WG
England
phone: [phone]
fax: [phone]
email: [e-mail]
http://www.ele.com
ELE International, a division of Hach Lange Ltd.
Distributor: ELE International
Soiltest Product Division
PO Box 389, Loveland, CO 80539
USA
phone: [phone]
fax: [phone]
email: s[email protected]
http://www.eleusa.com
In the interests of improving and updating its equipment, ELE reserves the right to alter specifications to equipment at any time.
ELE International 2018

1 9907X0093 Issue 3
OPERATING INSTRUCTIONS
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Contents
Section Page
1 General Description 3
2 Installation 4
3 Temperature Setting Procedure 4
4 Humidity Control 7
5 Maintenance 7
APPENDIX A : Digital Data Recorder
(Temperature & Humidity) 9
APPENDIX B : Programming an Offset Parameter into a
JUMO Dtron 316 temperature controller 18
APPENDIX C : TLK38 OFFSET Instructions 19
WEEE Directive

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1 General Description
The cooled laboratory humidity cabinet provides the user with extremely accurate and
safe temperature control over a wide temperature range.
1.1 Heating
Low wattage heaters are attached to the outer surface of the inner chamber in such a
manner as to ensure even heating throughout the chamber.
1.2 Cooling
Direct expansion coils are coupled to a hermetic condensing unit via a solenoid valve.
When the refrigeration switch is switched on, the compressor will run continuously.
The coolant flow is controlled by a solenoid valve, which is electronically opened and
closed by the temperature controller.
1.3 Temperature Controller
The temperature is accurately controlled by a Jumo dTRON 316 microprocessor
temperature controller. The controller uses the signal from a PT100 sensor located in
the chamber to control the current supplied to the heaters. The temperature can be
easily adjusted. See Section 3 for details.
1.4 Over / Under Temperature Safety Cut Out
A TLK38 digital cut out protects the contents of your incubator by allowing you to
program over & under temperature safety cut out set points. When the chamber
temperature goes out of limits, an audible alarm and visible red neon will bring to your
attention any problems. Reset buttons are provided below the cut out for you to
manually reset the out-of-limit system.
1.5 Circulating Fan
Air is drawn up through the chamber by a circulating fan located in the top and
returned to the base via a full width duct at the rear of the chamber. A door micro-
switch stops the fan when the door is opened.

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1.6 Humidity
A wide range of fixed relative humidities can be maintained by adding a suitable
saturated salt solution to the base of the chamber. See Section 4 for details.
2 Installation
2.1 Connect the 3-core cable to a 240V AC, 50Hz mains supply as follows:
BROWN - LIVE
BLUE - NEUTRAL
GREEN/YELLOW - EARTH
2.2 The incubator is internally protected by a fuse, which isolates the cabinet from the
electrical supply if excessive current is drawn. The fuse holder is located on the rear
of the cabinet. The instruments on the control panel will illuminate when the supply is
connected correctly and POWER switch is on.
2.3 General Precautions
A qualified electrician or other competent person must carry out
any electrical work required to install the incubator.
Do not place the incubator in direct sunlight or near a heat
source.
Make sure the incubator is not standing on its electrical supply
cable.
Before the incubator is switched on for the first time, it should
stand still for 2 hours after final positioning to allow the
refrigerant to settle.
Keep all ventilation grilles clear. Failure to do so may result in
component failure.
The refrigeration system gives off heat when operating. Always
ensure there is adequate ventilation around the incubator.
NEVER PLACE ANYTHING ON TOP OF THE INCUBATOR.
Before any cleaning or maintenance work is carried out, the
mains supply must be switched off and the plug removed from
the electrical socket.
3 Temperature Setting Procedure
Switch both the POWER and COOLING switches ON. DO NOT switch the HIGH
HUMIDITY switch on yet! Please see Section 4.1 for more details.

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3.1 The JUMO dTRON 316 microprocessor temperature controller on your incubator has
two LED displays. The upper display, which is red, represents the actual chamber
temperature. The lower display, which is green, represents the target temperature.
The controller has 4 buttons marked as follows;
PGM - Program button (Enters the programming mode).
▲- Increases the temperature set point
▼- Decreases the temperature set point.
EXIT - Exits the programming mode.
The yellow 3 on the temperature controller shows when heat is being supplied. The
yellow 5 shows when cooling is being supplied.
3.2 The incubator operating temperature or set point (SP) can be altered by simply
pressing either the ▲ button to increase the temperature or the ▼ button to decrease
the temperature. When the required temperature has been entered, release all
buttons and the green display will blink once to confirm that a new target temperature
has been stored.
3.3 Over / Under Temperature Safety Cut Out
A TLK38 digital safety cut out unit provides essential over & under temperature
protection for the products inside the chamber. The cut out has buttons labelled as
follows:
P
-
Enters the programming mode.
U
-
No function.
▲
-
INCREASES the displayed value.
▼
-
DECREASES the displayed value.

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3.4 Setting An Over Temperature Cut-Out Value
If, for example, you would like to operate your incubator at +20.0°C, an over
temperature cut-out value needs to be programmed into the cut-out. We recommend
that the cut-out value is set to 2 degrees higher than your chamber temperature. In
the example above, the over temperature cut-out set point needs to be set +22°C. To
do this follow steps 1 - 3 below:
a) Press the P button once only. Flashing AL1 will be displayed plus a value
(the over temperature cut out value).
b) Press the ▲button to increase the over temperature cut-out value or the
▼button to decrease the over temperature cut-out value.
c) Once the value of your choice is displayed, press the P button again and the
new value will be stored and retained in permanent memory.
3.5 Over Temp Neon, Buzzer & Reset Button
If your incubator overheats, the buzzer will sound and the over temperature neon will
illuminate. The heaters will automatically disconnect to prevent further
overheating. Once the chamber temperature has stopped rising, and has fallen
below the cut out set point, the heaters will re-connect automatically. The buzzer &
neon will remain on until a member of staff has acknowledged the alarm. To reset the
buzzer & alarm, press the reset button alongside the illuminated neon.
3.6 Setting An Under Temperature Cut Out Value
If, for example, you would like to operate your incubator at +20.0°C, an under
temperature cut out value needs to be programmed into the cut out. We recommend
that the cut-out value is set to 2 degrees lower than your chamber temperature. In
the example above, the under temperature cut out set point needs to be set +18°C.
To do this follow steps 1 - 3 below:
a) Press the P button twice. Flashing AL2 will be displayed plus a value (the
under temperature cut out value).
b) Press the ▲button to increase the under temperature cut out value or
the ▼button to decrease the under temperature cut out value.
c) Once the value of your choice is displayed, press the P button again and
the new value will be stored and retained in permanent memory.
3.7 Under Temp Neon, Buzzer & Reset Button
If your incubator overcools, the buzzer will sound and the under temperature neon will
illuminate. The cooling system will automatically disconnect to prevent further
overcooling. The buzzer & neon will remain on until a member of staff has
acknowledged the alarm. To reset the buzzer & alarm, press the reset button
alongside the illuminated neon.
3.8 Allow the chamber temperature to stabilise before putting your products into the
chamber.

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4 Humidity Control
A wide range of fixed and relative humidities can be achieved by adding a suitable
saturated salt solution to the base of the chamber. The relative humidity of air in
contact with saturated salt solutions reaches known equilibrium values at certain
temperatures.
Salts Graph
The graph above shows the temperatures and relative humidities for several of the
more common saturated salts. The distilled water/saturated salt solution should be
topped up regularly and should fully cover the floor AND high humidity element at all
times.
4.1 High Humidity Option
A high humidity level of approx. 98%RH is maintained by placing distilled water in the
base of the chamber and switching the HIGH HUMIDITY switch ON.
Do not use the HIGH HUMIDITY switch unless the floor of the chamber
is fully covered with water. It is essential that the heating element on
the chamber floor is covered at all times. This must be checked daily.
4.2 Allow the chamber humidity to stabilise before putting your products into the chamber.
5 Maintenance
No routine maintenance is necessary but regular cleaning of the inner chamber is
essential.
5.1 Keep ventilation grilles clear and unobstructed.

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5.2 The chamber should be regularly de-frosted as a substantial build-up of ice in the air
circulation duct will restrict the airflow and affect the incubators performance. It is
recommended that the service ports on the right of the incubator remain sealed with
the threaded red bungs supplied to reduce the tendency for humidity in the air to
condense out in the chamber.

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APPENDIX A
Digital Data Recorder (Temperature & Humidity)
1 Introduction
The Eurotherm nanodac Digital Data Recorder is a simple to use modern version of an
analogue paper chart recorder. Data can be viewed on screen or downloaded for viewing on
a computer. The digital data recorder has the following features and benefits:
•3.5” colour TFT screen.
•50 MB built in non-volatile memory for recording temperature and humidity data.
•Panel mounted USB socket (for downloading recorded data).
•Scrollable colour graphs for temperature and humidity displayed in real time.
•Data is recorded and stored every few seconds in .csv format
•Recorded data can be imported into Microsoft©Excel© via a USB flash drive.
Recording of data (to built-in memory) starts automatically after power on.
The recorder will hold approximately 1 years’ worth of data before data is overwritten.
Recorded data can be downloaded onto a USB flash drive for analysis (as required).
The recorder does not need a USB flash drive inserted to record data. (It only needs one
for downloading recorded data).
In the event of a power cut, stored data will remain safe in the recorder. Recording will not
happen during a power cut.
2 Operation
2.1 Switching On
After plugging the cabinet in, the data recorder will switch on and show a logo while starting
up. (A fuel gauge below the logo shows the loading progress).
Please wait for the recorder to start up
The recorder has been factory configured to record data automatically, once it has fully started
up. No button pressing required.
The screen (below) will appear once the recorder is operating normally:

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Normal operating screen (°C)
Normal operating screen (%RH)
The screen changes automatically between temperature and humidity every few
seconds during normal operation.

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2.2 Normal Operation
The recorder starts recording data automatically. The screen shows a live animated graph (in
real time) for both the temperature and the humidity. The screen changes between
temperature and humidity every few seconds. Large numbers in the top right corner of the
screen show the actual temperature or actual humidity so it can be verified easily.
The graph updates itself every few seconds and draws a history line. Historic data from this
time line can be viewed from the main menu.
HUMIDITY TRACE
ACTUAL TEMPERATURE
TEMPERATURE TRACE
R = RECORDING
CURRENT TIME / DATE
NOTIFICATION AREA
ACTUAL HUMIDITY
HUMIDITY TRACE
TEMPERATURE TRACE

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2.3 Control Panel Buttons
It is not necessary to enter the menu or change any settings for normal operation. The recorder
has been pre-configured to work optimally without any adjustment or input from the user.
The buttons on the recorders control panel perform these functions:
STATUS BAR
MENU ENTER / SELECT
DOWN / SCROLL BACK UP / SCROLL FORWARD
2.4 Screen Icons
The lower part of the screen contains the status bar, which shows the current date / time. The
following icons may also be visible:
A flashing yellow warning triangle means there is no USB flash drive connected.
A white envelope is a system message (used by engineers only).
A green and black R icon means data is being recorded and stored in internal memory
(temperature and humidity).

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2.5 Viewing Graph Data On Screen
Historical graph data can be viewed on-screen without affecting the recording process.
To view historical graph data:
1) Press the button.
The following screen will appear:
2) Press the button and select History.
3) Press the button and a grey background graph screen will be visible. (This
is historic graph data that has been recorded for temperature and humidity).
4) Press the button to scroll BACK in time.

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5) Press the button to scroll FORWARD in time.
6) Press the button to change between temperature and humidity screens.
7) When you have finished viewing the historic graph data, press the
button.
The following screen will appear:
8) Press the button and change No to Yes with the or
button.
9) Press the button
The following screen will appear:
10) Select Home.
11) Press the button to exit the Menu.
The normal operation screen (white background) will be displayed. The screen changes
automatically between temperature and humidity every few seconds.

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2.6 USB Socket
A panel mounted USB socket is included next to the recorder. The recorder does not need a
USB flash drive inserted to record data - the data is recorded and stored inside the recorder
as standard.
The USB socket is only needed when data download to a USB flash drive is required.
A removable screw cap prevents dirt / dust / moisture from entering the USB socket when not
in use. Remove the screw cap by turning the cap anti-clockwise to expose the USB socket.
Unscrew cap
Cap removed
Inserting a USB flash drive
Replace the screw cap when you have finished downloading.
2.7 USB Flash Drive Compatibility
The recorder will accept any brand of USB flash drive up to 8GB in capacity.
Do not use a USB flash drive larger than 8GB in capacity.
1GB
2GB
4GB
8GB
16GB
32GB
64GB
128GB
256GB

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2.8 Downloading Graph Data
The recorder holds approximately 1 years’ worth of data internally before data is overwritten.
The recorded data is stored in .csv format.
Recorded data can be downloaded onto a USB flash drive when required. This can be done
daily, weekly, or monthly.
After the downloaded data has been analysed in a computer, the USB flash drive does not
need inserting back into the recorder.
The recorder will continue recording and storing data internally after the USB flash drive has
been removed.
When the USB flash drive is next inserted back into the recorder, it will synchronise and update
the existing data on that USB flash drive with any new recorded data which has been captured
since the last download.
No data acquisition software required for data analysis.
When the recorded data is needed for analysis on a computer, follow this procedure:
Insert a USB flash drive into the USB socket (max. capacity 8GB).
Wait 15 minutes (for the recorded data to synchronise) before removing the USB
flash drive.
If it has been a month or longer since you last downloaded recorded data, you
may have to wait up to 30 minutes for the data to synchronise.
Remove the USB flash drive from the USB socket.
Insert the USB flash drive into a computer running Microsoft©Excel©(or
equivalent).

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2.9 Viewing the Downloaded Graph Data
On your computer, navigate to where the downloaded data has been stored on the USB
flash drive.
The normal data storage location will be on the flash drive in a folder called “history”.
(There may be other sub folders within the “history” folder).
The recorded data will be stored in .csv format in a sub-folder called “CSV”.
An example is shown below:
Open the .csv data in Microsoft©Excel©and display the data in a graph of your own choice.

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APPENDIX B
Programming an Offset Parameter into a JUMO dTRON 316 temperature controller
If the temperature displayed by your replacement Jumo 316 controller does not match the
actual chamber temperature, an offset parameter may have to be programmed into the
controller. To do this, follow the steps below:
1. When the controller is in its normal mode, press the PGM button once.
2. OPr should be displayed.
3. Press the _ button twice. ConF should appear.
4. When ConF is displayed, press the PGM button once. iNP should appear.
5. Press the PGM button twice. SEnS should be displayed.
6. Press the _ button twice. OFFS°C should be displayed.
7. To adjust the offset value, press the PGM button (OFFS flashes), then use the _ button
to increase the OFFS value, or the _ button to decrease the OFFS value. (If, for
example, the temperature display was originally reading 2.0° too high, you need to put a
negative offset value in of -2.0. If the temperature display was originally reading 1.0° too
low, you need to put a positive offset value in of +1.0).
8. When the desired offset has been entered, wait a few seconds and the display will blink
to confirm the new offset parameter has been stored.
9. Press the EXIT button four times.
10. The current chamber temperature will then be displayed which will include the additional
offset value that you have just programmed in.
11. If at any stage during this procedure, the buttons are not pressed for 10 seconds or more,
the controller will automatically return to its normal mode and you will have to restart
from step 1.

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APPENDIX C
TLK38 OFFSET Instructions

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DIRECTIVE ON WASTE ELECTRICAL & ELECTRONIC EQUIPMENT (WEEE)