46(49)
As figures on above picture 4-2：
1. Temperature difference display area. It is used to display difference value
between actual temp. and set temp. For example, if actual temperature is lower
than set temp., the pointer turns left (negative direction), otherwise, it turns
right( positive direction).
2. Temperature set area. Set value range: 0~199℃，when heating process lasts
for some time, “on/off” indicator light on temperature controller will display
yellow and green light alternatively. It means the set temperature is reached. At
the same time, observe if the value on temperature controller is consistent with
the thermometer or not. The acceptable deviation is ±2℃.
3. Inching knob of temperature difference pointer. When the working temperature
runs stably (about 1 hr after the start), the pointer should be at “0” (the
difference value between actual temperature and set value), otherwise adjust
the pointer to “0” is available by rotating the inching knob.
4. Overheat indicator setting knob. When actual temperature is no less than set
value alarming value, temperature controller has alarming output, the factory
set value is 15℃.
Temperature controller panel indicator light description as below:
ON/OFF：ON status green light on, OFF status red light on;
AL: light on means over temperature alarm output;
TC B： light on means temperature sensor line breaks
Notes: Drying temperature setting of plastic material must be in accordance with
related drying temperature. If temperature gets too high, it would make
material blocked and potentially cause serious accident. Thus the
temperature setting must collocate with actual experience.
Moreover, the dryer equipped with overheat protective device. SHD-25~150
adopts lead sheet as the protector when overheat breaking happened. When
flowing through heater is bigger or heating pipe temperature higher than 328℃,
the lead sheet will break itself and stop heating (as picture 4-3). SHD-200 and
models above, adopts overheat protectior It is mounted on fixing pole at the
back of control box. When detecting the temperature of fixing pole over 130℃,
the protector will cut off the power supply (as picture 4-4).
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