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Section 6
Programmable Models
Controller Parameters
(continued)
6-6
Clean Room Oven
Pid LiSt
G.SP (Gain Setpoint): Is the temperature at which the controller
Pb: Proportional band in display units. (SEt 1)
ti: Integral time in seconds. (SEt 1)
td: Derivative time in seconds. (SEt 1)
Pb2: Proportional band. (SEt 2)
ti2: Integral time in seconds. (SEt 2)
td2: Derivative time in seconds. (SEt 2)
ACCS LiSt (Access List)
Access Code (Code needed to enter or change the other configuration
parameters which are not normally accessible). Not accessible.
Alarms
The controller will flash an alarm message in the home display if an alarm
condition is detected.
Note The following alarm messages are factory default settings and may
vary if you have changed the configuration of your controller:
IDHi: = 0°C
2FSH = 250°C
IdHi: PV deviation high alarm.
2FSH: PV full scale high alarm.
LCr: load current low alarm.
HCr: load current high alarm.
S.br: Sensor break: check that sensor is connected correctly.
L.br: Loop Break: Check that the heating circuits are working properly.
Ld.F: Heater Circuit Fault: indication of either an open or short solid sate
relay, a blown fuse, missing supply or open circuit heater.
SSr.F: Solid state relay failure indications in a solid state relay: indicates
either an open or short circuit in the SSR.
Htr.F: Heater failure: Indication that there is a fault in the heating circuit:
indicates either a blown fuse, missing supply or open circuit heater.
switches from the (SEt1) PID values to the (SEt 2) PID values.
Thermo Scientific
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