SR258 solar controller with Wifi

1, Features:


<1> Housing: plastic ABS
<2> Mounting: wall mounting     

<3> Operation: 6push buttons at the front cover

<4> Protection type: IP41


2, Technical datas:


<1> Dimension: 187x128x46mm
<2> Power  supply:  200V-240V  AC  or  100V-130V  AC,50-60Hz.     

<3> Rated impulse voltage: 2.5KV 
<4> Power  consumption:  < 3W 
<5> Accuracy of temperature measuring: ± 2oC
<6> Range of collector temperature measuring: -10oC ~200oC
<7> Range of tank temperature measuring: 0oC ~110oC

<8>Ambient temperature: 0~40degrees
<9> 1pcs*Pt1000 temperature sensor input
       4pcs*NTC10K,B=3950 temperature sensor input

      1*Grundfos direct sensor TM(VFS) simulation input

       1*FRT rotary vane type electronic flow meter

      1*485 communication port

<10> 2*Electromagnetic relay,Maximum current 2A

         2*Semiconductor relay, Maximum current 1A

         1*Potential-free extra-low voltage relay (on/off signal), possible conbined with HR controller

        2*PWM variable frequency output (on/off switchable,0~10V)


3, Main functions: Operating hours counter, tube collector function, thermostat function, pump speed control, heat quantity measurement, external heat exchange, adjustable system parameters and optional functions(menu-driven), balance and diagnostics 


4, Delivery list:


1*SR288 controller

1* Accessory bag

1* User manual

1* PT1000 temperature sensor(D6*50mm,cable length 1.5meters)

4* NTC10K temperature sensor (D6*50mm, cable length 3meters)


5, Overview manu structure:


New coming SR258 solar controller with WIFI function 


6, Payment


<1> T/T(wire transfer)

<2> L/C at sight

<3> 30% T/T in advance as deposit, the rest paid before shipment

<4> 30% T/T in advance as deposit, the rest paid against B/L copy


7, Our advantages:


<1> We have 8 senior engineers working on development. that will make us lead the trend whatever on structure or technolgy

<2> 15 QC control the quality, just make sure all is right

<3> Aftersale service is quick, any problem you mentioned will be dealt with in 24 hours!

<4> Our professional salesmen always online for your questions


8, Contact:


Mr Krista Zhang


Position: Sales manager

Phone: 86-573-87090146

Mob/whatsapp: +8618857389277

Facebook/Wechat: Zilansolar

Skype: Krista025




For more details, pls send email to us, thanks!

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