Solar Controller SRK868V6 Installation and Operation Instructions
http://www.keracontrols.com
17
5. Specifications
•
Supply
：
Models for 120Vac or 208-240Vac ±10%, or 12/24Vac , 50/60Hz
•
Power consumption
：
< 4VA
•
Temperature test units
：
Celsius or Fahrenheit ( selectable )
•
Temperature test accuracy
：
± 1
o
C ( ± 2F )
•
Temperature test range
：
0 ~ 121
o
C ( 32 ~ 250 F )
•
Internal Real Time Clock
：
Yes
•
Clock backup
：
Internal lithium battery ( or self-recharging backup )
•
Program Memory: Internal, non-volatile
•
4 test Inputs
：
4 wired temperature sensor probes,
9
1 Pt1000 sensor (
≤
500
o
C) for collector (silicon cable
≤
280
o
C),
9
1 or 2 NTC10K, B3950 sensors (
≤
135
o
C) for tank, (PVC cable
≤
105
o
C),
9
(optional) 1 NTC 10K, B3950 sensor (
≤
135
o
C) for hot water circul. pump (PVC cable
≤
105
o
C),
•
Inputs wiring connection: Screw terminal
•
4 Outputs ( SPST, N.O. relays ):
9
1 for Heating booster, 16Amp, 240Vac max. ( max. 2000W resistive load )
9
1 for Solar circulating pump, 5Amp, 240Vac max. ( max. 600W load )
9
1 for Hot Water circulating pump, 5Amp, 240Vac max. ( max. 600W load )
9
1 for electromagnetic valve, 5Amp, 240Vac max. ( max. 600W load )
•
Outputs wiring connection: Screw terminal
•
Control Panel display: LCD with LED backlight
•
Control Panel dimensions: 120mm x120mm x18mm
•
Power Module dimensions: 200mm x140m x 45mm
•
Operating ambient temperature
：
-10
o
C ~ 50
o
C.
•
Enclosure rating: Water proof grade IP40
.
