Installation and Operation
Laboratory Vacuum Ovens
Table
2.
Parameter Functions
CAUTION!
Observe the following precautions
when operating the oven:
Wear protective
Wear protective gloves.
Use tongs to insert and remove oven
Do not allow the load to touch the oven walls.
CAUTION!
Do not attempt to operate the oven
above the maximum rated temperature of
260°C.
Operation above
260°C
can cause damage to the
oven.
4.1
Oven Start Up
To start the oven, complete the following steps:
1. Turn on main power switch. Wait until the controller runs
initial diagnostics.
2. Verify the vacuum pump connection (see Section 3.3 on
3. Select the desired setpoints (refer to Section 5.3 on page 6 if
you have a
controller, Section
6 if you have a UP150
controller).
5 Operation
-
Controller
The oven temperature controller is configured and tuned at the
factory to function well for most applications. Occasionally, it
may be advisable to configure the temperature controller
differently to suit a particular working environment or process.
Table
3.
Pushbutton Keypad
Before reconfiguring the controller, read
this chapter and the
operation manual.
Reconfiguring the controller can change the unit
SC
dr
and design
which can
hamper performance and make the equipment
dangerous to use.
Super Control
action
This chapter provides brief instructions on how to perform the
following configuration changes:
Setting the temperature
Setting the Overtemperature Protection Temperature
Changing between
and
Setting the ramp to
time
Autotuning the controller
Detailed instructions on configuring the temperature controller
are found in the
operation manual.
5.1
Normal Controller Operation
The Temperature Controller senses the chamber air temperature
of the oven (the
PV, or process value) and supplies the heat
necessary to achieve the desired setpoint. The controller includes
an LED display and a pushbutton keypad. Refer to Table 2 and
Table 3 for lists of displayed parameters and keypad functions.
Button
A
Function
Pressing and holding the SETIENT for three seconds
advances the display to the Operation Parameters
Menu.
While in the Operation Parameters Menu, use
SETIENT to move from one parameter to the next, and
to register changes you have made in
and
parameter values.
Holding SETIENT for three seconds exits either the
Operation or Setup Parameters menu.
Use the Up Arrow button to increase the temperature
display and to change parameter values in the
Operation and Setup Parameter menus. Whenever
you change the value of a
or parameter, the
decimal point flashes to remind you to register the
changed value with SETIENT.
Use the Down Arrow button to decrease the
temperature
display and to change parameter
values in the Operation and Setup Parameter menus.
Whenever you change the value of a
or
parameter, the decimal point flashes to remind you to
register the changed value with SETIENT.
