DL4084 OSRAM, DL4084 Datasheet - Page 53

• Manufacturer Part Number: DL4084
• Description: LAMP, DULUX, L, CW, 40W
• Manufacturer: OSRAM

Specifications of DL4084

• Supply Voltage: 126V
• Base Type: 4 Pin
• Power Rating: 40W
• Luminous Flux: 3500lm
• Length: 533mm
• Colour Temperature Typ: 4000K
• Svhc: No SVHC (15-Dec-2010)
• Colour: Cool White
• External Diameter: 17.5mm
• External: RoHS Compliant
• Lamp Base Type: 4 Pin
• Rohs Compliant: Yes
• Bulb Diameter: 17.5mm

Economical long-life light sources with plug-in bases.
Compact Fluorescent Lamps OSRAM DULUX
Technical Guide
52
4.8.1 Maximum
temperatures for
DULUX
®
-Lamps
1) Measuring point 2 on the glass tube near to the filament is the hottest point on the lamp.
2) Maximum limit value of the mercury vapour pressure (see 1.4)
On amalgam lamps (OSRAM DULUX
in the lamp but in the lower half of the discharge tube inside the base. As far as the
luminous flux/temperature curve is concerned, it is not the value at measuring point 3
that is relevant but at the amalgam measuring point inside the base. The optimum
amalgam temperature at the measuring point (amalgam reservoir) is between 85 ºC and
115 ºC. This temperature can be measured only with specially prepared lamps.
Undershooting or overshooting the temperature range will lead to a reduction in lamp
power and luminous flux.
Measuring point 1 (IEC measuring point) is not relevant for determining the amalgam
temperature and should not be used for this purpose.
In addition, any information from ECG manufacturers regarding the permissible limit
values at temperature measuring point T
values are exceeded the life of the ECG will be reduced.
The following table shows the permitted maximum temperatures on OSRAM DULUX
lamps. Exceeding one or more of the maximum values specified here will lead to:
• a noticeable reduction in lamp life
• and/or damage to the CCG or ECG
• and/or damage to the lamp base and the luminaire holder.
In the case of OSRAM DULUX
100 ºC at measuring point 3 (cold spot) should not be exceeded. Exceeding this limit
value may cause the lamp to fail.
At cold spot temperatures above the optimum (see table 4.8) there are changes in the
electrical and photometric data of the lamps (the luminous flux is no longer at 100 %).
The limit value at measuring point 1 is 140 ºC for OSRAM DULUX
without amalgam. This maximum value was defined as part of the IEC standard for
safety reasons. Exceeding this value leads to softening of the plastic base and dis-
colouration of the base material.
Measuring point
limit values
OSRAM DULUX
OSRAM DULUX
OSRAM DULUX
OSRAM DULUX
Measurements are taken 5 mm from the edge of the base.
®
®
®
®
2-pin (CCG operation)
4-pin (ECG operation)
IN 2-pin (CCG operation)
IN 4-pin (ECG operation)
®
®
S, D, T (without amalgam), L and F the limit value of
®
T and T/E...IN), the cold spots are not at the bend
c
EN 60901
on the ECG must be observed. If these limit
As per
90 °C
90 °C
0
–
–
EN 61199
As per
140 °C
140 °C
140 °C
140 °C
1
4. Operating characteristics
190 °C
190 °C
190 °C
190 °C
®
2
lamps with and
(1)
100 °C
100 °C
3
–
–
(2)
®