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Shenzhen Besful Electric Co., Ltd.
Floor 4, Building 3, Jia’an High-tech Industrial Park, Block 67, Bao’an New City, Shenzhen Business
0086-755-27816960
Floor 4, Building 3, Jia’an High-tech Industrial Park, Block 67, Bao’an New City, Shenzhen Business
0086-755-27816960
| BF-22A microcomputer two-way temperature controller,is one way measuring temperature,two-way independently output controller,it can be used as boosting or watering at constant temperature in hot water engineer occassions.68*68 square installation opening size,thin panel makes it more delicate. |
Mainly applies to heat pump boosting and watering at constant temperature,solar boosting system,hot stove boosting and watering at constanr temperature. |
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| Display | Display water temperature of tank. | ||
| Boosting at constant temperature | Temperature measured value≥temp-control value,stop heating; Temp measured value≤temp-control value-temperature low limit backlash value,start heating. | ||
| Watering at constant temperature(one way N.C contact control) | Temperature measured value≥temp-control value,N.C contact closes,start the watering device; Temp measured value≤temp-control value-temperature low limit backlash value,close the watering device. | ||
| EEPROM | If the user doesn’t use it for a long time or power off accidently,the controller can keep original setting,when the user reuse it or power on,the controller can continue working as setted parameters. | ||
| Error correction | When there is deviation between measured temperature and actual temperature,the error correction function can correct it. | ||
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| Power supply & power consumption | 220VAC,±10%,50Hz;power consumption:220VAC<4W. | ||
| Size of whole body | 72x72x60(mm) | ||
| Installation method & size | Windowed installation ,68x68mm | ||
| Display | 3 digits LED display | ||
Range of measuring temperature & accuracy | -20℃～+140℃; accuracy1℃ | ||
Range of temp-control & accuracy | -20℃～+120℃accuracy：1℃ | ||
Range of control temperature low limit backlash value | 0℃～30℃ | ||
Error correction | -10℃～+10℃ | ||
Accuracy of temperature setted | 1℃ | ||
Sensor type/quantity | 1 NTC, the signal line can be extended for 100m. | ||
| Relay output | First way N.O or N.C contact output,second way N.O contact output,the volume of resisitive loaded contact is AC220V,6A. 1A(inductive). | ||
| EEPROM | When power off,the controller can keep setted value | ||
| Selection Guide |
| Temperature controller mainly used the occasions of heating and watering at constant temperature,their main features:NTCtemperature sensor signal input,control the output of N.O and N.C by setting the high or low temperature,contol |
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