Across International AccuTemp Series, Руководство пользователя, Страница: 11 / 30

ACCUTEMP SERIES 480°F VACUUM DRYING OVEN USER’S MANUAL
- 10 -
Prompt Name Description Range (factory value)
SP Target temperature Set target temperature in °F or °C. use code “FC” to set
temperature unit.
SPL to SPH (see parameter table #2)
ST Dwelling time
0 = continuous heating. Use code “Hn” to set timing unit
0-9999 (0) minutes or hours
5.2. Finishing your process
After purging and heating is done, turn off the main power switch. If you wish to fill your oven with inert gas,
use the vent port (shown below) to connect to a nitrogen, argon, etc. source. Open the vent port and let the
vacuum level restore to atmospheric pressure, then open the door and remove your samples (caution: surfaces
may be hot!).
5.3. Switching the temperature display between Fahrenheit (°F) and Celsius (°C)
Under [MAIN] mode, press and hold the “Set” button for 3 seconds. The controller will display “Lc”, shown
below. Enter 27 and press “Set” to access the “FC” (temperature display) setting screen, also shown below.
Set “FC” to
0 to display the temperature in Celsius, or 1 for Fahrenheit. When done, press and hold “Set” for
3 seconds to save and exit to [MAIN] mode.
(0001 = Fahrenheit °F)
For optimal uniformity, allow 60 to 90 minutes for oven temperature to stabilize after target
temperature is reached.
6.1. What is Auto Tune (AT)?
Auto tune is a process of optimizing your oven’s performance. It helps increase heating rates, minimize
temperature differences, and prevents overshooting. A set of optimal PID values will be saved
automatically after AT is done.
6.2. When should you perform an AT?
a. If your target temperature is above 200 °F or higher, the first time you are using your oven. (If less
than 200 ºF, you can skip this process.)
b. If you’ve recently changed or replaced any parts inside your oven.
c. If you see a big temperature difference between controller display and actual oven temperature.
6. AUTO TUNE (AT) CALIBRATION