9
GRX3 LED IC operation, inspection and maintenance.
Cables / glands / blinds
Mains supply cable must be approved for fixed installation. The external diameter can be 4–12 mm (M20
gland) or 10–18 mm (M25 gland) as main choice, but different glands sizes can be supplied. Cross sectional
area of the wires can be between 1.5 and 6.0 mm2. The cable must have an earth wire and shielded cable
is recommended to be used. Only Ex e cable glands / blinds acc. to IEC 600079-0:2009 or later be used.
Operation of GRX3 LED IC in emergency mode
GRX3 LED 1600 IC give 28% light at E1 and 18% in E3, GRX3 LED 3300 IC give 14% at E1 and 8% at
E3. When the Ta is ≤ 0
o
C changing of battery will stop. When mains voltage is switched on the charging
indicator (green LED) will light, indicating charging of the battery. If the connection to the battery is disrupted
or the battery is defect, the green LED indicator will not light. Reset fault indication by switching off / on power
supply. A new or discharged battery must be charged for at least 24 hours in order to be full charged.
Battery pack replacement
When the battery pack is defect or need to be replaced, use only original battery pack from Glamox 7,2V
4.0Ah item no PM161012000 for external mounted battery and item no. 19594472 for internal mounted
battery. Do not replace the battery when an explosive atmosphere is present. Keep always the battery wires
isolated to avoid shortcut of the battery. Do not transport the battery through a hazardous area.
Control and inspection
General inspection and main function control to be carried out once a month. Fully emergency duration test by
switching off power supply should be performed at least once a year and the specified emergency light time
shall be observed.
Maintenance
The GRX3 LED IC is designed to operate many years with a minimum need for maintenance. However it may
be necessary to clean the diffuser if it gets dirty. Do never use any solvents for cleaning polycarbonate diffuser
due to risk of generating static charge. Use moist cloth only, no solvent. If battery and other components need
to be replaced, it is important to use only original Glamox components.
Cycling of battery
To have best lifetime of batteries, cycle the batteries at least 2 times by charging for 24 h and discharge until
the emergency light turns off. To cycle, just switch the circuit breaker on/off.
Thermal protection
Inside GRX3 LED IC, at LED modules, there are 3 fuse levels to protect against overheating.
Outside temperature (Ta)
Light level
Auto reset by decreasing temperature
1. level at +40
o
C
75%
Yes
2. level at +46
o
C
50%
Yes
3. level at +57
o
C
Defect 0%
No
Содержание GRX3 LED IC
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