Landcal Blackbody Source
Type P1600B2
User Guide
Page 12
5.4 Overtemperature Controller Using 'Eurotherm' Model 2132
Refer to Fig. 9. When switched on, the controller lights up, goes through a short
test routine, and then displays the Overtemperature Set Point.
Fig. 9 'Eurotherm' 2132 control panel
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 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).
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.
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, and normal operation is not resumed if the temperature
subsequently drops.
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 resumes normal operation.
Resetting the overtemperature alarm
The overtemperature cut-out system also operates if the overtemperature
control thermocouple breaks or becomes disconnected. The message S.br
flashes instead of 2FSH.
▲
▼
EUROTHERM
2132
OP1
OP2
Set Point temperature
Up
Down
Scroll
Page
