Brand Name: Shangfang
Model Number: SF-784
Place of Origin: Guangdong, China
We have 15 years experience producing temperature controller.Our products are well-known for their stable performance and durability.
Besides conventional products,customized are offered as well. So,don' be hesitate to contact us,we will serve you with 100% enthusiasm
Satisfactory after-service is offered.Our technical team support you for any technical problem about products.And there is one year warranty for each one.
We ready to serve you. Let's build a win-win partnership!
Main products
Picture of factory
digital thermostat 220v SF-784
Feature
1.Temperature display&control
2.Defrost type optional(defrost by turning off compressor/electric heater/hot gas)
3.Defrost control,door switch control
4.Automatic energy-saving control
5.Condenser beyond limit alarm
Technical data
1.Range:-50~150°C(-50~302°F) Accuracy: ±1°C( ±2°F)
2.3 NTC
3.Compressor:30A/250VAC
Defrost:10A/250VAC
Evap.Fan:8A/250VAC
Light:8A/250VAC
Size
Dimension:208*64*73mm
Parameter
| Code | Function | Set range | Default |
| PAS | Password | 00~99 | 15 |
| E1 | Lower setpoint limit | -50°C(-50°F)~set temp. | -25 °C /-13 °F |
| E2 | Higher setpoint limit | set temp.~45°C/113°F | 20.0 °C /68°F |
| E3 | Temp.Hysteresis | 0.1~40.0°C/0.2~70°F | 4.0 °C /7.2°F |
| E40 | Comp.start delay time | 0~10Min | 2Min |
| E41 | Delay starting time | 0~10Min | 2Min |
| E5 | Offset on room temp. | -20~20°C/-36~36°F | 0/0 |
| E6 | Offset on Evap.temp. | -20~20°C/-36~36°F | 0/0 |
| E7 | Offset on condenser | -20~20°C/-36~36°F | 0/0 |
| F0 | Defrost type |
0=Defrost by turning off comp. 1=Heater defrost 2=Hot gas defrost |
1 |
| FF0 | Hot gas defrost comp.delay starting time | 00~20Min | 00 |
| FF1 | Defrost mode |
0=Power on hours 1=Comp.continuously working time |
1Min |
| F1 | Max defrost duration | 1~60Min | 20Min |
| F2 | Defrsot interval time | 0~24Hr | 6Hr |
| F30 | Defrost starting time | -40°C/-40°F~F31 | 0.0 °C/32.0°F |
| F31 | Defrost termination time | F30~40.0°C/104°F | 8.0 °C/46.4°F |
| F4 | Display during defrost |
0=Normal display 1=Last value before defrost 2=Display"dEF" |
1 |
| F5 | Dripping time | 0~60Min | 2Min |
| P1 | Fan control during refrigeration |
0=Synchronized with compressor 1=Keep running 2=Determined by P4.P5 |
0 |
| P2 | Fan control during defrost |
0=Off 1=On 2=Determined by P4.P5 |
0 |
| P3 | Fan starting after defrost |
0=Time 1=Determined by P4.P5 |
0 |
| P4 |
Fan starting temperature (evap.sensor lower than starting) |
-30°C/-22°F~P5 | 15.0 °C /59.0°F |
| P5 |
Fan termination temperature (evap.sensor higher than termination) |
P4~30°C/86°F | 25.0 °C /77.0°F |
| P6 | Fan delay starting time after defrost | 00~30Min | 2Min |
| C1 | Cold room higher temperature alarm | C2~45°C/113°F~OFF | 40.0 °C/104.0 °F |
| C2 | Cold room lower temperature alarm | OFF~-40 °C /-40°F~C1 | -40 °C /-40 °F |
| C3 | Condenser higher temperature alarm | OFF~-40°C/-40°F~150°C/302°F | OFF |
| C4 | Alarm Hysteresis | 0.1~20.0°C/0.2~36.0°F | 2.0 °C /3.6 °F |
| C5 | Extermal alarm input effective work mode |
0=Comp.stop running 1=Running according to C7.C8 |
0 |
| C6 | Alarm after delay | 0~120Min | 2Min |
| C7 | Comp.force termination time | 0~120Min | 15Min |
| C8 | Comp.force running time |
0=Compressor stop 1~120=Starting time |
30Min |
| CF | Temperature unit | °C=Celsius °F=Fahrenheit | °C |
| D1 | Display type |
0=display current cold room actual temp. 1=display no more than "set temp.+E3+D2" 2=fixed display set temp. |
0 |
| D2 | Display increment | 00~30.0°C/00~54.0°F | 5.0 °C /9.0 °F |
| Db | Dispaly resolution | 0.1/1 °C/°F | 0.1 |
| dor | Input type |
0=condenser senor input 1=door switch(door open contact actuation) 2=door switch(door open contact disconnected) 3=alarm input(contect disconneted alarm) 4=alarm input(contact actuation alarm) |
1 |
| do1 | Door open overtime alarm | 00~30Min | 5Min |
| do2 | Fan status when door open |
00=stop 01=original status |
00 |
| do3 | Light status when door open |
00=start 01=original status |
00 |
| do4 | Temperature displayer when door open |
00=normal display 01~99=display time locked |
5Min |
| L1 | Door open energy saving mode |
00=energy saving closed 01=energy saving open (dor=1,2 effective) |
00 |
| L2 | Energy saving triggering time | 01~20hours(continuously door not open time) | 2Hr |
| L3 | Energy saving temperature control increment | 00~30.0°C/00~54.0°F | 5.0 °C /9.0 °F |
| L4 |
Exit energy saving mode (door open times/hours) |
1~5 tims | once |
Circuit diagram
Certificates
Verified Supplier - Zhongshan Shangfang Instrument Meter Co., Ltd
Bussiness Type: Manufacturer,Trading Company 
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