Table of Contents
Advertisement
Mini-mite Tube Furnace
AUTO/MAN/OFF: (Auto/Manual/OFF Mode)
Operation
Action
To change Auto to
Press and hold
Manual model
than 3 seconds
OR
1. AUTO: When the controller is in the automatic mode the output automatically adjusts
to keep the temperature or process value at the setpoint. Auto mode is also referred
to as "closed loop" as the controller will use thermocouple temperature as feedback
to control the furnace temperature.
2. MAN: Manual mode means that the controller output power can be adjusted directly
by the user. The input sensor is still connected and reading the PV but the control
loop is 'open'. In manual mode the MAN beacon will be lit, Band and deviation alarm
are masked, the auto-tuning timer and programmer functions are disabled. The
power output can be continuously increased or decreased using the up or down
buttons.
3. OFF: Off mode means that the heating and cooling outputs are turned off. The
process alarm and analogue retransmission outputs will however, still be active while
Band and deviation alarm will be OFF.
CAUTION : Thermo Fisher does not recommend to use controller in MANUAL mode
or OFF mode, as Manual mode can damage the unit or cause over-heating without care
or proper operation. If controller set as MANUAL mode operation, the end user must use
a separate 'over-temperature' controller for safe operation of the unit.
5-Program 16-Segment Controller Operation
The 3216p temperature process controller is a single loop PID based controller that can
store up to 5 programs with 16 segments each. This controller consists of microprocessor
based three-mode PID (Proportional, Integral and Derivative), programmable temperature
controller and appropriate output switching devices to control the furnace. The
programmable controller can be used as a single set point controller or as a
programmable controller. The controller is capable of varying temperature or process
value with time through programming. A program is stored as a series of segments and
can be run once, repeat a set number of times or run continuously. This 16 segment
digital model can enable 16 segments in each program.
Some of the commonly used parameters in operator Level 1 and Level 2 of 3216p
controller are:
Main Controller: 1x8 & 5x16 Segment Programmable |
Indication
Controller display Shows Auto mode
as A-M.
+
for more
OR
Chapter 6
304243H02 | 6-40
Hide quick links:
Advertisement
Table of Contents
