Product Specifications

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Product Description

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Quick Details

Place of Origin: Guangdong, China

Model Number: SR81

Type: PWM

Application: Thermal Controller

Work Time (h): 24

Max PV Power: 2000

Max PV Voltage: 220

Certificate: CE

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Products Description

Introduce:

Old SR868C8 updated version

With separate keypad

Main technical data:

APPLICATIONS CAPACITY

Max.number of collectors:1

Max.number of storage tanks:1

Max.number of relays:4

Max.number of sensors:5

Max.number of visualization application system: 1

FRT:1* Rotary vane type electron flow meter

Size of Keypad:120mm x 120mm x 18mm

Size of Controller(1.5KW version): 187mm x128mm x46mm

Size of Controller(3KW version): 218mm x165mm x55mm

Size of Controller(4KW version): 218mm x165mm x55mm

Power supply: AC100-240V50-60Hz. .

Power consumption: < 2.5W

Rated impulse voltage: 2.5KV

Housing: Plastic ABS

Protection type: IP41

Mounting: Wall mounting

Operation: 10 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: 3 pump possible to be connected

Suitable power of HK (backup heating):

1pc(1.5KW version) ˂1.5KW

1pc(3KW version) ˂3KW

1pc(4KW version) ˂4KW

Inputs: 5 sensors

1pcs*Pt1000 sensor (≤500oC) for collector (silicon cable≤280oC)

4pcs*NTC10K B3950 sensor (≤ 135oC) for tank (PVC cable ≤105oC)

1*FRT Rotary vane type electron flow meter

Outputs: 4 relays for circulation pump and backup heating

3*Electronmagnetic relay Max.current 2A

HK relay(1.5KW version):10A

HK relay(3KW version):15A

HK relay(4KW version):20A

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

COL---Collector1

PUMP---Pump control mode

COOL---Cooling function

AUX---Auxiliary function

MAN---Manual mode

BLPR---Blocking protection function

OTDI---Thermal disinfection function

FS---Flow meter type selection.

UNIT---C-F unit switch

RST---factory setting

PASS--- password set

Holiday function

Screen Protection

Trouble Protection

Trouble Checking

SYSTEM :

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