Thermo Scientific F30400, Инструкция по установке и эксплуатации

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9
8 Segment & 4x16 Segment Programmable Models w/OTP
Sensor Break Protection
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Large Tabletop Muffle Thermo Scientific
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.
The following alarm messages are factory default settings and may vary if you have
changed the configuration of your controller:

IDHi: = 50°C

2FSH = 1225°C (All models except -60)

2FSH = 1000°C (-60 models)
Sensor Break Protection
This controller provides sensor break protection in the event the thermocouple opens. If an open
thermocouple condition occurs, the digital display will Blink “S.br” and the power to the heating
element will be shut OFF (Cycle light on the display will extinguish).
Over-Temperature Protection (OTP)
The OTP will be in effect during any alarm condition when the temperature of the furnace has
deviated 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 recommend a value of 20° above your working
temperature to provide protection for your workload.
To Operate the Controller as a Single Setpoint Controller
1. Switch the circuit breaker to the “ON” position. The setpoint temperature presently set in the
controller will appear in the lower display. (The upper display indicates the actual chamber
temperature.)
2. To change the setpoint, press the UP or DOWN button until the desired setpoint value is
displayed; then release the button.
3. The furnace will begin to heat if the new setpoint temperature is higher than the present chamber
temperature.