2132/2116 Overtemperature Controller
MC11 – 1.05
7
5.1
Basic Operation
Use
Down
and
Up
to alter the overtemperature setpoint. This should normally be set a
little above the maximum working temperature (say 15°C above). The unit is supplied at 15°C
above the furnace or oven maximum working temperature.
Press
Scroll
to view the present temperature as seen by the overtemperature controller. Press it
twice, because the first press shows the temperature units (°C).
5.2
Overtemperature Alarm
If an overtemperature condition occurs, the OP2 indicator flashes, and an alarm message 2FSH
also flashes, alternating with the setpoint. Power to the heating elements is disconnected.
5.3
Resetting the Overtemperature Alarm
To acknowledge the alarm press
Scroll
and
Page
together.
If the alarm is acknowledged while there is still an overtemperature condition, the OP2 indicator
stops flashing but continues to glow. The 2FSH alarm continues to flash until the over-
temperature condition is cleared (by the temperature falling), when normal operation resumes.
If the alarm is acknowledged when the temperature has dropped (or after the overtemperature
setpoint has been raised) such that the overtemperature condition no longer exists, then the
furnace or oven immediately resumes normal operation.
5.4
Sensor Break
The overtemperature cut-out system also operates if the overtemperature control thermocouple
breaks or becomes disconnected. The message S.br flashes instead of 2FSH.
5.5
Audible Alarm
If an audible alarm is supplied for use with the overtemperature controller, then it is normally
configured to sound on overtemperature condition, and to stop sounding when the alarm is
acknowledged as given in section 5.3. Note that the alarm may sound during controller start-up.
It is not possible to cover in this manual other possible alarm features which may be included by
customer special order.
5.6
2132 & 2116 Navigation Diagram
Present temperature.
Use
/
to view the
temperature.
Home
List
Access
List
20.0
ACCS
PV
codE
*C
*C
Overtemperature
setpoint. Use
/
to
access setpoint.
for factory access to
lists and parameters
not available to the
operator
