XMART Optima 33 30K - Manual (Page 26)

USER MANUAL - OPTIMA-33 10K / 20K / 30K
www.xmart-ups.com 130612-OPTIMA-33 10K/20K (ENGLISH) - 24
CVCF mode Description
When the output frequency is set to “CF”, the inverter will output constant frequency (50 Hz or 60
Hz). At this mode, the UPS will have no bypass output but still charge battery.
LCD display
Battery mode Description
When the input voltage/frequency is beyond the acceptable range or power failure, UPS will backup
power from battery and alarm will beep every 4 seconds.
LCD display