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24VDC / AC Intelligent Temperature Controller With Digital Display
Appearance size: 77mm(length) × 35mm(width) × 60mm(deep)
Hole Size:71mm(length) × 29mm(width)
Features:
- Small integrated intelligent control
- temperature control / Refrigeration heating mode conversion /
Set the memory / Self-diagnosis
Technical Parameters:
1, Power supply: 12V ~ 24VDC/AC
2, Temperature probe: NTC, One, 2 meters long (regardless of
positive and negative)
3, Temperature display range : -45~120℃(-40~248℉) Accuracy:
±1℃(±2℉)
Resolution: 0.1ºC (-19.9 ~ 99.99ºC )
4, Control the temperature range : -45~120℃(-40~248℉) Factory
default: 0℃(32℉)
5, Working temperature:-10~60℃(14~140℉) ; Relative humidity: 20%
to 90% (no condensation)
6, Contact capacity:
• Control output: normally open 16A / 250VAC
• Alarm output: normally open 5A / 250VAC
Panel operation:
1, Control temperature (shutdown temperature) adjustment: Press the
set key to display the control temperature, Press the or key to change the value and remember. Hold down the keys and keys for more than seconds to quickly increase or decrease the
value. Press the set key to exit the adjustment status display
cabinet temperature; If you do not press any key, After six
seconds to restore the display cabinet temperature. (Control
temperature adjustment range: parameter E1 ~ parameters E2)
2, Refrigeration indicator light : During refrigeration process,
the cooling light is bright ; Under constant temperature state,
cooling light off ; During the delay, the chunk lamp flashes .
3, Heating indicator light : Heating process, the heating light is
bright ; Under constant temperature state, heating light off ;
During the delay, the heating lamp flashes .
4, Parameter setting:
• Press the set key for six seconds, Enter the parameter
settings, while flashing display E1;
• Then press the set key to change the parameter selection, In
order E2,E3,E4,E5,C1,C2,P1,P2,P3, E1;
• Press or key , Can display the value of the parameter and modify, store
data;
• Within six seconds no longer press any key to return to normal
mode of operation.
parameter | Features | Predetermined area | Factory default |
E1 | Minimum control temperature | -49℉ -45℃ | -31℉ -35℃ |
E2 | Maximum control temperature | 248℉ 120℃ | 194℉ 90℃ |
E3 | Temperature hysteresis | 0.2~54.0℉ 0.1~30.0℃ | 7.2℉ 4.0℃ |
E4 | Delay start time | 0 ~ 10 minutes | 2 minutes |
E5 | Cabinet temperature probe correction | -35~36.0℉ -19.9~20.0℃ | 0 |
C1 | Temperature unit | 0=degree C 1=Fahrenheit | 0 |
C2 | Temperature control mode | 0=cooling 1=heating | 0 |
P1 | High temperature alarm value | -49 ~ 212℉ -45 ~ 100℃ | 113℉ 45℃ |
P2 | Low temperature alarm value | -49 ~ 212℉ -45 ~ 100℃ | -40℉ -40℃ |
P3 | Alarm delay time | 0~90 minutes | 60 minutes |
P4 | Alarm hysteresis | 0.2~18℉ 0.1~10.0℃ | 3.6℉ 2.0℃ |
5, Restore factory settings: Press and hold the key for one second, and then press & hold the key for another six seconds, the display flashes. At this point
all parameters to restore the factory value, After six seconds to
return to normal mode of operation.
6, Parameter lock: Press the key for six seconds, flashing "OFF" means lock, "ON" means
unlocking. After the parameters are locked, the parameters can
only be viewed and can not be changed. Control the temperature
adjustment is still valid. (Factory setting "ON")
Function Description:
1, Cooling control:
• When the temperature control mode (parameter C2) is set to 0,
after the compressor has been delayed, When the cabinet temperature
is greater than (control temperature + temperature difference), the
compressor starts . Cabinet temperature is less than the control
temperature, the compressor stops.|
• To protect the compressor, the time for the compressor to stop
each time must exceed the delay time (E4 parameter), then compress
can restart.
2, Heating control:
• Temperature control mode (parameter C2) is set to 1, the heater
after a delay, when the cabinet temperature is less than (control
temperature - temperature difference), the heater began to heat.
Cabinet temperature is greater than the control temperature, the
heater stops heating.
3, Alarm function:
• After the initial shutdown, when the sensor temperature
exceeds the P1 maximum alarm value, or less than P2 minimum alarm
value, and the continuous time exceeds the alarm delay time P3,
enter the alarm state.
• When the alarm indicator flashes, the alarm relay is on. Press
any key to stop flashing, but still on. When the temperature
returns to normal, the alarm relay is disconnected and the alarm
indicator goes off.
• In the high temperature alarm, when the cabinet temperature is
lower than (P1 maximum alarm value - alarm hysteresis P4), out of
the alarm.
• In the low temperature alarm, when the cabinet temperature is
higher than (P2 maximum alarm value + alarm hysteresis P4), out of
the alarm.
• Connected to the power supply after two seconds, when the library
temperature in a constant temperature state, the direct start of
the alarm without the need for the initial shutdown.
• When adjusting the alarm parameter value, the high temperature
alarm value (P1 parameter) must be greater than the low temperature
alarm value (P2 parameter) .
4, Abnormal mode of operation:
Cabinet temperature probe short circuit or high temperature limit
(greater than 120 ℃ 248 ℉) show "HH" ; Cabinet temperature probe
open or low temperature limit (less than - ℃ - ℉) show "LL". The
alarm light flashes .
Installation precautions:
1, To prevent high frequency interference, the probe line can not
be bundled with the power line or control line parallel, to
separate wiring.
2, Such as installation needs, can extend the probe line up to 100
meters, no need to re-check.
3, The thermostat can not be installed in a dripping place.
Wiring diagram