4
ST700
Operating Manual
English
TROUBLESHOOTING
Problem
Possible Cause
Possible Solution
Lamp does not power up
No power
Verify power cord connected
to line power. Verify power
cord is connected to
lamp. Verify control cord is
connected to lamp.
Damaged or defective power
cord
Inspect power cord for
damage. Replace if damage
is found.
Damaged or defective control
cable
Inspect control cord for
damage. Replace if damage
is found.
Damaged or defective control
switch
Inspect control switch for
damage. Replace control cord
if damage is found.
Internal failure
Contact Magnaflux Authorized
Service Center.
Lamp works in UV mode but not
White Light mode
OR
Lamp works in White Light mode
but not UV mode
Damaged or defective control
cable
Inspect control cord for
damage. Replace if damage
is found.
Damaged or defective control
switch
Inspect control switch for
damage. Replace control cord
if damage is found.
LED driver failure
Contact Magnaflux Authorized
Service Center.
One or more LEDs not active
LED array failure
Contact Magnaflux Authorized
Service Center
Significant drop in UV-A
intensity
Filter is dirty
Clean LED covers and filters.
Inconsistent light meter
measuring distance
Use a calibrated UV-A meter
fixed at consistent distance of
15 in / 38 cm from lamp filter to
front of sensor.
LED failure
Contact Magnaflux Authorized
Service Center.
Visible light readings above 2
ft-candles or 20 lux
Incorrect light meter range
Use a calibrated visible light
meter that meets ASTM E2297
defined range for visible light
(400-760 nm).
Inconsistent light meter
measuring distance
Use a calibrated visible light
meter fixed at consistent
distance of 15 in / 38 cm from
lamp filter to front of sensor.
Filters are dirty
Clean LED covers and filters.
See maintenance.
Damaged UV filter(s)
Replace LED cover assembly.
LED failure
Contact Magnaflux Authorized
Service Center.
