Rohde ST 411 - General Operation of Firing; Operation Using Specific Controls

71 / 327 - EN -
8. Instructions for use
8.1. Firing
8.1.1. General operation
The firing process starts by pressing the j key and is indicated by the “Program running” indicator for the duration.
Notes on starting the firing process:
⇒ A program delay can be entered each time a firing program is started. Please refer to Section 8.1.3.
⇒ If no program delay is planned, the entry can be skipped by pressing the
j key and the firing program starts
immediately.
⇒ If the program delay is not entered within 5 seconds, the firing process starts automatically.
⇒ The firing process can be ended at any time by pressing the
j key again which makes the “Program running”
indicator go out.
⇒ The firing process can be restarted by pressing the
j key. When you restart, the firing program starts again
from the beginning.
⇒ After a restart, you can use the program advance function (see Section 8.1.4.) to skip the individual steps in the
program until you are back at the correct segment.
Note 1:
• Press the j key to start the firing process - it is recommended that you first check the program numbers and
values with the
g key.
• It is also a good idea to have a written record of the contents of the firing programs kept and displayed near the
kiln especially if there is more than one user of the kiln.
Note 2:
• During ramping, the controller will perform either heating or cooling – as indicated on the mimic panel.
• Heating is indicated by the “Heating” control display.
• During soaking the controller display alternates every 15 seconds between kiln temperature and soak period
remaining.
• At the end of each segment, the segment number indicator is incremented.
8.1.2. Operation using the j
• If the j key is pressed during firing, it will be halted (not paused).
• Pressing the j key again will restart the firing from the beginning.
• The controller will look at the current kiln temperature and if this is greater than the required soak temperature
then it will automatically cool from the current temperature to the soak temperature.
• Since this process may not be desired, the j key should only be used to abort the firing process in an
emergency.
• The program can be paused, or program data can be changed while the controller is firing. This procedure is
preferable to using the
j key (see section 8.1.5.).