Sensor Break Protection; Overt Temperature Protection (Otp) - Barnstead FB1310M Operation And Repair Manual And Parts List

S S
INGLE ETPOINT CONTROLLER
Note
Furnace must be at ambient
temperature before starting a tune.
14

Sensor Break Protection

This controller provides sensor break protection in
the event the thermocouple opens. If an open ther-
mocouple condition occurs, the digital display will
blink "S.br" and the power to the heating element
will be shut OFF (Cycle light will extinguish).
Over-Temperature Protection
(OTP)
The OTP will be in effect during any alarm condi-
tion when the temperature of the furnace has devi-
ated beyond the limit. The "Deviation High" alarm is
the only alarm value which can be changed. To
change it, press the SCROLL button until "IdHi"
appears on the display. Press the UP or DOWN
button to select the OTP value you desire. We rec-
ommend a value of 20° above your working tem-
perature to provide protection for your workload.
Tuning
This controller incorporates a self-tuning feature
which determines the optimum control parameters
for the best temperature accuracy with your load
and setpoint. Use this feature the first time you use
your furnace and each time you change either your
setpoint or the type of load you are heating.
Barnstead|Thermolyne recommends you use this
feature to provide the best temperature accuracy
the controller can attain. To use the tuning feature:
1. Adjust the setpoint to your desired value.
2. Press the PAGE button until display reads,
"Atun."