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”!
