STC200-Digital Thermostat Refrigeration Heating Use Refrigeration Seafood Ma Heaters and Various Other and Temperature

STC-200 adopts manual switches among
refrigeration, heating and alarm, differential to control
temperature, user and administrator parameter setting
separately, compressor delay time adjustable,
temperature calibration, alarm when error, compressor
works as per the scheduled procedure when sensor
error. STC-200 is an all-purpose model with high
performance versus price ratio. It is suitable for
refrigeration and deepfreeze, seafood machine, water
heater and products which need simple temperature
monitoring and alarm.
Specification and Parameters:
Whole product size: 77.0x 34.5x65.5(mm)
Installing-hole size: 70.5x28.5(mm)
Operating ambient temperature:-5℃~+60℃
Stored temperature: -30℃~+85℃
Relative humidity:20%-60% (No condensate)
Main technical parameters:
Power supply:220VAC±10%(12V±10%optional)Watt consumption:<5W
Temperature measurement range:-40℃~+99℃
Temperature control range:-40℃~+70℃
Resolution: 1
Accuracy:±1℃
Relay contact capacity:10A/250VAC/30VDC
Main functions:
Temperature measurement, display and control
Adopt differential to set temperature
Compressor startup delay
Alarm when error
Switches among refrigeration, heating and alarm
Mode of indicator light:

Parameter inspection and setting:
Parameter inspection (under non-setting mode)
Press ~▲" key to display the set temperature value
and display the current temperature in 2 seconds;
Press~▼
▼" key to display the temperature differential
value and display the current temperature in 2
seconds.
Parameter setting
◇Entry into user setting mode:
Under non-setting mode, press SET key for above 5
seconds to enter into user setting mode, the set
indicator light on and LED displays the current

STC-200 Instruction
temperature set value.
Temperature setting:
Under user setting mode, press "
"or"
▼"key to
upwards or downwards adjust the temperature set
value. Press once to increase or decrease 1℃, press
the key for above 2 seconds to start prompt adjustment.
◇Quit from user setting mode:
Under user setting mode, press SET key for above 5
seconds or no key operation within 30 seconds, the
system will preserve the displaying temperature set
value and return to normal working mode.
◇Entry into administrator menu;
Under non-setting mode, press SET and"▲
"keys for
above 5 seconds to enter into administrator menu
setting mode. The set indicator light on and LED
displays item F0.
◇Setting item modification and entry into parameter
setting mode:
Under setting item mode, press"▲"or "▼ "key to
upwards or downwards adjust the setting items F0~F5.
"▼” is null under setting item F0;"▲"is null under
setting itemF5.When modify the parameter values,
press~▲"or"▼"key to adjust it to the corresponding
setting item, press SET key to enter into parameter
modification mode, this moment, LED displays the
current set value of this parameter.
◇Parameter modification and return to setting mode:
Under parameter setting mode, press"▲"or"▼ "key to
upwards or downwards adjust parameter values."▼ "is
null at the Small parameter value;",
"is null at the
Big parameter value. Press SET key to return to
setting item modification mode after parameter setting,
this moment, LED displays the current setting item.
◇Parameter preservation and quit from setting mode:
Under setting item or parameter mode, press SETkey
for above 5 seconds or no key operation within 30
seconds, the system will preserve the current set value
and quit from the setting mode.Output relay connection and disconnection:
Press on/off key to turn on the temperature controller.
Under running mode, press this key for above 3
seconds to tum off the temperature controller.
◆Refrigeration
◇Relay starts refrigeration when compressor delay
time > the set delay time or the sensor's temperature >
set temperature + temperature differential value.
<Relay stops refrigeration when sensor's temperature
<set temperature.
◆Heating
◇Relay connects when actual delay time > set delay
time or sensor's temperature < set temperature;
◇Relay disconnects when sensor's temperature> set
temperature + temperature differential value.
◆Alarm output (under alarming mode)
◇Relay connects and alarm output when sensor's
temperature> set temperature + temperature
differential value or sensor's temperature< set
temperature.
Descriptions of alarming function:
.Alarm when sensor error
◇LED blinkingly displays E1 with buzzer sound when
sensor open circuit;

>LED blinkingly displays E2 with buzzer sound when
sensor short circuit.
Alarm when exceeding temperature limits
LED displays HH or LL when sensor's temperature
>+99℃ or <-40℃.
When sensor error, under refrigeration mode,
compressor will work as per the procedure (work for 15
minutes and stop for 15 minutes)
Administrator menu setting function:

Inspection before use and installation requirements:
◆Power supply must conform to the power labeled on
the instrument.
Prohibit to using in water or humidity ambient,
prohibit to using under environments of high
temperature, high electromagnetism interference and
serious corrosion.
Sensor down-leads, power wires and output relay
down-leads should be strictly distinguished from one
another, prohibit wrong connections. Do not overload
the relay.
Sensor down-leads and power wires should be kept
for a proper distance to avoid possible interferences.
Sensor installation should be kept away from the
vent hole for accurate measurement.
Electric connection paradigm: