SR881 Solar Working Station

Product name:SR881 Solar Working Station
Package Size:580 mm × 445 mm × 200 mm
Package Weight:13.5 Kg
Apply to:Split Pressurized Solar System
Guarantee Period:1 Year

Categories: Solar Group Pump Station Tags: Controller
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Max.number of collectors:1
Max.number of storage tanks:1
Max.number of relays:2
Max.number of sensors:3
Max.number of application system:1

Diamension: 400mm*200mm*145mm
Installation: wall mounting,also suitable for mounting into patch panels
Power supply: 200V-240V AC or 100V-130V AC,50-60Hz. .
Power consumption: < 3W
Accuracy of temperature measuring: ± 2°C
Range of collector temperature measuring: -10 ~200°C
Range of tank temperature measuring: 0 ~110°C
Suitable power of pump: 2 pumps possible to be connected, power of each pump < 200W .
Inputs: 3 sensors,
Pt1000 sensor (≤500°C) for collector (silicon cable≤280°C),
NTC10K, B3950 sensor (≤ 135°C) for tank, (PVC cable ≤105°C),
Outputs:2 relays, for circulation pumps or 3-way electromagnetic valve
Ambient temperature:-10°C ~ 50°C.
Water proof grade: IP40.

Timing heating
Temperature difference control 1*ΔT
Collector emergency shutdown
Collector cooling function
Collector low temperature protection
Collector frost protection
Tank re-cooling function
Celsius and Fahrenheit temperature switch
Maximum temperature of tank(max.number 1)
Anti-Legionella function
Temperature controlled hot water circulation pump
RPM speed controlling(1*semiconductor)
Thermal energy measuring
Pump interval functions.
High temperature by-pass function
Manual Control( for 2 outputs:P1,H1)
Password setting
Recovery to factory setting
Holiday fucntion
Manual Heating
Temperature query function
Memory Protection
Screen protection
Trouble shooting
Trouble protection
Trouble checking

SR881 working principle drawing

SR881 front view SR881 lateral view

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