Thermoline Scientific Equipment TGO-80W User manual

OPERATING
INSTRUCTIONS
FOR:
MODEL: TGO-80W, 150W, 240W
GLASSWARE DRYING OVEN
Thermoline Scientific Equipment Pty. Ltd.
ABN 80 000 859 129
10-12 Ross Place Wetherill Park NSW 2164. P.O. Box 1851 Wetherill Park DC NSW 1851
Phone: [phone] International: 61 2 9604 3911
Fax: [phone] International: 61 2 9725 1706
Email: [e-mail] Web: www.thermoline.com.au

Models TGO-80W, 150W, 240W Glassware Drying Oven Manual
26-1-16
2
Introduction:
Thank you for selecting this equipment from the large range of products
manufactured & imported by Thermoline Scientific.
This manual covers the operation, cleaning, & maintenance instructions for this
equipment. Incorrect operation or use can cause harm or damage to the equipment,
therefore it is very important that you read, understand, and implement the instructions, to
ensure reliable operation. Please keep this manual in a safe place for future reference.
LIST OF CONTENTS:
INTRODUCTION:
2
LIST OF CONTENTS:
2
UNPACKING:
2
USE AND FUNCTION:
2 & 3
LOCATION & INSTALLATION:
•Location:
•Mains connection:
•Control Panel
3 to 5
OPERATION:
•Changing the temperature:
•Setting duration time.
•High Temp Safety.
•Loading.
5 to 7
CLEANING:
8
Calibration:
8 & 9
WARRANTY:
9 & 10
UNPACKING:
Remove the equipment from the packing material and check for damage. Notify the detail
of any damage to your supplier or to Thermoline Scientific without delay.
Retain the packing materials until the equipment has been thoroughly tested.
USE & FUNCTION:
The Thermoline glassware drying ovens are ideal for providing effective drying of
laboratory equipment and removal of moisture from glass beakers/flasks etc.
•Temperatures can be controlled accurately from ambient +10ºC to +110ºC.
•Digital temperature control with set temperature and internal temperature displayed
to one decimal place.
•Electronic control of heating element for optimum temperature control.
•Timer function available on temperature control to turn off heating after a pre-
determined time.
•In-built over temperature feature in the digital temperature control. If the
temperature rises above the set value by more than 3ºC, the heating is shut down.
•High temperature safety thermostat (operator adjustable).
•Fan forced air circulation, with 2 fan speeds.
•Adjustable air exhaust vent.
•Adjustable open wire shelves.
•Viewing door.

Models TGO-80W, 150W, 240W Glassware Drying Oven Manual
26-1-16
3
These drying ovens will operate from a standard 240 volt, 50Hz, 10 amp general
purpose power outlet.
LOCATION & INSTALLATION:
Location:
Place the oven in a well ventilated area on a firm level surface. Please note that all
models will generate some heat as a normal part of operation and some of the surfaces
will be hot to touch.
The exhaust vent at the rear of the oven has a cover over it so that the vent cannot
be placed up against a wall. When being used for drying purposes there will be warm
moist air being discharged from this vent, please take this into account when determining a
location for the oven.
The TGO-80W and the TGO-150W are suitable for bench mounting, but the larger
TGO-240W is meant to be free standing.
Model:
TGO-80W
TGO-150W
TGO-240W
Internal Dimensions:
500 x 400 x 400 (WDH)
600 x 500 x 500 (WDH)
600 x 500 x 800 (WDH)
External Dimensions
620 x 520 x 620 (WDH)
720 x 620 x 720 (WDH
720 x 620 x 1020 (WDH
Capacity
80 litres
150 litres
240 litres
No of shelves
2
2
3
Electrical rating
240 volts, 7 amps.
240 volts, 8.5 amps.
240 volts, 10 amps.
Do not place anything on top of the oven, in particular do not block off the
ventilation slots that are used to keep the fan motor cool.
Mains connection:
These cabinets are suitable for connection to a standard 240 volt, 50Hz, supply. A
dedicated outlet should be used for the supply, do not use power boards or the like. A 3-
pin moulded plug is fitted as standard to the mains lead.
CONTROL PANEL:
1: Layout:

Models TGO-80W, 150W, 240W Glassware Drying Oven Manual
26-1-16
4
2: Power switch:
This illuminated switch is used to turn on the temperature controls and the
circulating fan. “0” is power off and “1” is power on.
3: Temperature control:
PV (process variable): This digital display is the actual temperature in the oven.
SP (set point): This digital display is the set temperature in the oven.
This button is used to enter changes to parameters and to
move between functions.
These arrows are used to move between, and to alter the
numbers on the screen.
4: Timer Switch:
This switch turns the duration timer on in position “1” or allows heating to be on
continuously in position “0”. The indicating light above the switch will be on when the set
duration time is complete.

Models TGO-80W, 150W, 240W Glassware Drying Oven Manual
26-1-16
5
5: High Temp Safety Thermostat: Located on the front control panel, this thermostat
is set by the operator to turn off the heating element, should the temperature control fail in
an “on” state. There is indicating light adjacent to the thermostat to indicate when the
thermostat is tripped. The thermostat is not the manual reset type and will revert to normal
operation when the temperature falls below the setting.
6: Fan Switch:
This switch turns the circulating fan speed to low in position “0” and high in position
“1”. OPERATION:
7: Locate the oven as previously described and plug the lead into the power point. Do
not turn on the power yet.
8: Adjust the shelf positions to suit your storage needs by moving the shelf clips
provided.
9: Changing the temperature:
•Turn on the “Power” switch. The circulating fans will run immediately, and the
temperature will go through a short “warm up” before displaying the set temperature
(SP) on the lower display and the oven temperature on the top display (PV).
•Use the arrow to “highlight” the digit on the set temperature to be altered.
•Use the or arrows to increase or decrease the value.
•Press the button to enter the new temperature. The display will stop
“flashing” when the new temperature is accepted.
•
Note: As mentioned previously, the temperature control has an in-built “Over temperature”
alarm that turns off the heating element if the oven rises above the set temperature by
more than 3ºC. The indicating light “EV2” will be on during an alarm.
10: Setting the duration timer:
•Use the button to scroll through the series of operator level displays that are
available.
•Pressing the button once allows the operator to see the power output level
being used to heat up the oven. When the temperature control first starts to heat the
heat output level will be 100%, but as it nears the set temperature the output %
level will reduce. Please note that there are no operator adjustable parameters in
this display (see picture below).

Models TGO-80W, 150W, 240W Glassware Drying Oven Manual
26-1-16
6
•Press the button again to view the timer display. The duration timer will turn
off the heating after the set time has lapsed. The display is in hours and minutes
and is shown below set at 10 hours, 00 minutes.
•Use the arrows on the temperature control as you did to set the temperature to set
the required duration time. The bottom display is the set time in hours/minute up to
99 hours, 59 minutes. The top display will count the time down as it lapses.
•Please note that the time will not start until the oven has reached temperature and
the timer switch will need to be in the “1” position. If the switch is in the “0” position
the timer will be bypassed.
•When the duration time has been reached the heating will turn off and the indicating
light above the timer switch will be on. Note: to reset the timer you have to turn
the main power switch off!
•Press the button again to return to the original screen.
11: Fan Switch:
Use the fan switch to set the fast or slow speed. For more drying capacity turn the
switch to high. “0” = low, “1” = high.
12: Setting the High Temp Safety Thermostat:
A heating element is used for to increase the temperature inside the oven.
The over temperature safety thermostat limits the temperature that the oven can
reach by isolating the power to the element, when the temperature exceeds the thermostat
setting. This is very important if the heating fails in an “on” condition.
It is therefore very important that the thermostat is set at a temperature that will protect
the samples inside the oven, to do this we recommend that the thermostat is set just
above the operating temperature. To do this, use the following procedure:

Models TGO-80W, 150W, 240W Glassware Drying Oven Manual
26-1-16
7
a) Turn the thermostat knob fully clockwise and allow time for the oven to stabilize at
the highest set temperature.
b) Once the temperature is stable the over temperature thermostat can be adjusted.
c) Turn the over temperature thermostat anticlockwise until the red light on the front
control panel is illuminated.
d) Now slowly turn the over temperature thermostat clockwise until the light (just) goes
out.
The over temperature thermostat is now set at a temperature just above the ‘set’ oven
temperature to prevent accidental overheating.
Please be aware that the thermostat is a simple device that is less accurate than
the digital controls. It should not be set too close to the operating temperature in
case it interferes with control.
13: Loading:
All forced draught ovens such as this one require constant air flow throughout the
cabinet to maintain the desired temperature. Correct loading of the shelves must be
considered for efficient performance.
•Allow air space around the product on each shelf.
•Distribute the load evenly over all of the shelves rather than stacking everything on
one shelf.
For maximum drying capacity the fan speed should be on high and the exhaust vent
should be open. The knob for the exhaust vent is on the side of the oven. Pull the knob out
to open the vent.

Models TGO-80W, 150W, 240W Glassware Drying Oven Manual
26-1-16
8
CLEANING:
General cleaning:
The interior liner and exterior case can be cleaned using a soft cloth. Never use abrasive
cleaners or scouring pads as these will scratch the surface and may result in corrosion.
Never use caustic type cleaning agents.
CALIBRATION:
Calibration of temperature control (should be performed only by qualified
technician):
There are a number of factors that will affect the accuracy of the temperature displayed in
relation to the actual temperature inside the oven, these include the following:
•Oven temperature. (At higher or lower temperatures the heat loss from the
oven will be greater).
•Loading of the oven. (Product load inside the oven may affect the air flow
across the temperature sensor).
•Sensor location. (The sensor can never be placed in the centre of the oven
because it could get damaged).
Because of the above factors, it will be common to have an error between the temperature
displayed (PV), and temperature measured in the oven by a certified instrument. For this
reason the digital temperature control has a parameter that can be used to correct the
temperature displayed, called the “BS”.
In simple terms this “BS” adds or subtracts a correction value to the displayed temperature
to make it read the correct temperature.
Please note that the temperature control has many parameters that are factory preset to
provide accurate stable temperature control through the temperature range. These
parameters are normally “locked” to prevent accidental changes to other control
parameters; therefore it is important that they are not altered during the calibration
procedure!
The “BS” correction parameter can be accessed by means of the following
procedure:
•Press the button for at least 3 seconds. This will allow access to the
instrument configuration parameters.
•Use the button to “scroll” through the various control parameters that make
the temperature control work. You will note that you cannot alter any parameters at
this stage because they are “locked”.
•Scroll through to the “LOCK” parameter and use the arrow to make this
parameter 0. This will now allow the operator to alter the “BS” parameter.
Note: do not alter any parameter other than “BS”!

Models TGO-80W, 150W, 240W Glassware Drying Oven Manual
26-1-16
9
AL-2
3.0ºC
AT
OFF
AT.BS
0.0
P
I
D
ARW
100.0
CT
2
BS
LOCK
1
•“BS” is used to adjust the PV value to make it read the true value when measured
by a calibrated independent instrument. For example, if the “PV” display reads
100.0ºC and a calibrated instrument measured the oven temperature at 100.5ºC;
you would make “BS” = +0.5ºC using the up arrow. Don’t forget to press to
enter the value.
•Make the “LOCK” parameter 1 again before exiting the parameter configuration
level by holding the button for a few seconds.
•The output of the temperature control will now adjust the oven to the correct
calibrated temperature. WARRANTY:
Have the following information available when you contact the service department:
•Model number and serial number. This is generally found on the exterior of the case
in the form of a stick-on label.
•The company name, address, contact name, contact phone number.
•A brief description of the problem.
All warranty claims must be reported to, and agreed to by a Thermoline
representative prior to any work being carried out.

Models TGO-80W, 150W, 240W Glassware Drying Oven Manual
26-1-16
10
Standard 12 month Warranty
Thermoline Scientific Equipment Pty Ltd ABN 80 000 859 129 (“Thermoline”)
Thermoline warrants to the original purchaser that this product will perform to its product specification for
a period of 12 months from date of purchase, provided that the installation of the product has been carried
out in accordance with the latest version of the manufacturer's instructions and further provided that the
use of the product complies with that specified in the relevant specification. Thermoline is not responsible
for any loss or damage arising from incorrect usage, usage outside the suitability of the product as
stipulated in the manufacturer's instruction, damage caused by accident, fire, flood, act of God or failure
to properly install, operate or maintain the goods in accordance with the printed instructions provided.
The following statement applies only to product sales that fall within the definition of a Consumer Sale set
out in the Australian Consumer Law contained within the Competition and Consumer Act (Cth) 2012:
‘Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are
entitled to a replacement or refund for a major failure and for compensation for any other reasonably
foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail
to be of acceptable quality and the failure does not amount to a major failure.’
Notwithstanding the preceding clause and to the extent permissible by law, the liability of Thermoline is limited,
in relation to the warranted product and at the option of Thermoline to:
•replacing the product or the supply of equivalent product;
•the repair of the product;
•the payment of the cost of replacing the product or of acquiring equivalent product; or
•the payment of the cost of having the product repaired.
To the extent permitted by law, all other warranties whether implied or otherwise, not set out in this Warranty are
excluded and Thermoline is not liable in contract, tort (including, without limitation, negligence or breach of
statutory duty) or otherwise to compensate the Purchaser for:
•any increased costs or expenses;
•calibration/certification services;
•any loss of profit, revenue, business, contracts or anticipated savings;
•any loss or expense resulting from a claim by a third party; or
•any special, indirect or consequential loss or damage of any nature whatsoever caused by Thermoline’s
failure in complying with its obligations or the purchaser’s failure due to accident damage, impact,
misuse or negligence.
The benefits given to the purchaser in this Warranty are in addition to other rights and remedies under a
law in relation to the products or services to which this warranty applies.
This warranty applies only to products purchased and installed in Australia and does not cover any
consumable items e.g. filters, light globes, ultrasonic nebulizers. The warranty does not extend to labour
and freight costs where the warranted product is located outside Australia.
To make a warranty claim, contact Thermoline on 02 9604 3911 or [e-mail].