DEWAR_LEVEL_LED = 25.0

try:
    _level = dewar_level.read()
except:
    log("Cannot read Dewar level", False)
    _level = 0.0

try:      
    _led_room_temp = is_led_room_temp()
except:
    log("Cannot get LED configuration", False)
    _led_room_temp = False

if _level <= DEWAR_LEVEL_LED:
    if not _led_room_temp:      
        log_str="LED Monitoring: Setting LEDs to room temperature range" 
        log(log_str, False)
        print (log_str)
        set_led_range(room_temp = True)
else:        
    if _led_room_temp:       
        log_str="LED Monitoring: Setting LEDs to LN2 range" 
        log(log_str, False)
        print (log_str)
        set_led_range(room_temp = False)