Shandong Isentrol Electronic Technology Co., Ltd

SR288 Controller for Solar System



Temperature measurement accuracy:0.1C
RS485 communication port
Combine with wifi module can internet access
Conventional/HE pump both available on
Free offer remote monitor management server.
Max.number of collectors: 1
Max.number of storage tanks: 1
Max.number of relays: 5
Max.number of sensors: 6
Max.number of visualization application system: 1
Signal port for HE pump: IPWM1
Communication port: 1*rs485
FRT:1*Rotary vane type electronic flow meter

Main technical data:

Size of Coroller: 187mm x128mm x46mm
Power supply: AC100-240V50-60Hz. .  
Power consumption: < 2.5W
Rated impulse voltage: 2.5KV
485 current supply: 60mA
Housing: Plastic ABS
Protection type: IP41
Mounting: Wall mounting
Operation: 6 push buttons at the front cover.
Accuracy of temperature measuring: ± 0.1oC
Range of collector temperature measuring: -10oC ~220oC
Range of tank temperature measuring: 0oC ~110oC
Suitable power of pump: 4 pump possible to be connected  
Suitable power of HK (backup heating): 1pc ˂1500W .
Inputs: 6 sensors
1pcs*Pt1000 sensor (≤500oC) for collector (silicon cable≤280oC)
4pcs*NTC10K B3950 sensor (≤ 135oC) for tank (PVC cable ≤105oC)
Outputs: 5 relays for circulation pump and backup heating
2*Electronmagnetic relay Max.current 1A
2*Semiconductor relay Max.current 1A
1*Potential-free extra-low voltage relay(on/off signal)
2*PWM variable frequency output(switchable 0-10v)
Ambient temperature: -10oC ~ 50oC.
Water proof grade: IP41

Main functions:

DATE---Date setting
Timed heat---backup heating
Circle---Hot water circulation
LOAD---Setup Loading tank1
PUMP---Pump control mode
COOL---Cooling function
AUX---Auxiliary function
MAN---Manual mode
BLPR---Blocking protection function
OTDI---Thermal disinfection function
OPARR---Parallel relay function
OHQM---Thermal energy measurement
FS---Flow meter type selection
UNIT---C-F unit switch
OSDS---SD card
PASS--- password set
Holiday function
Screen Protection
Trouble Protection
Trouble Checking



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