The 68938 is one of our most versatile power supplies; it runs QTH and IR sources from 0.8 to 140 W. We think that you’ll be impressed with the high performance, ease of use and economically minded price. You can set the proper operating current for your source, and then choose between current and voltage display on the LED. Light ripple is <0.4% r.m.s.
Soft Start
The 68938 has a soft start feature that protects the lamp from sudden and drastic current changes; the current gradually ramps up to the set level. This prolongs lamp life.
Why a 68938?
We offer various power supplies to run low wattage QTH lamps and IR lamps; below we compare them.
Table 1 QTH and IR Source Power Supplies
|
Model |
Runs These Sources |
Light Ripple |
Soft Start |
Input for Light Intensity Controller |
Digital Current/Voltage Display |
Current Pre-Set |
Power Regulation |
Safety Interlock |
| 63941
|
10 & 20 W QTH |
<2 % rms |
|
|
|
|
|
|
| 68938
|
10 - 100 W QTH and
0.8 - 140 W IR |
<0.4 % rms |
X |
|
X |
|
|
X |
| 69931
|
45 - 250 W QTH and
22 - 140 W IR |
<0.05 % rms |
X |
X |
X |
X |
X |
X |
Operates QTH lamps and IR elements
The 68938 runs the following lamps and IR elements:
|
Model |
Lamp/Element Type |
| 6318
|
QTH |
| 6319
|
QTH |
| 6332
|
QTH |
| 6337
|
QTH Long Filament |
| 6352
|
QTH |
| 6333
|
QTH |
| 6359
|
QTH |
| 6581
|
Miniature Infrared Element, 0.8 Watt, Miniature |
| 6580
|
Low Cost Infrared Element, 9 Watt |
| 6575
|
Infrared Ceramic Element, 22 Watt |
| 80030
|
24 W SiC Source Element |
| 6363
|
IR Emitter, 140 W Element |
Specifications
| AC Input |
115/230 VAC, 50/60 Hz VAC |
| DC Output |
0-12 A; 13 V/145 W, max |
| Light Ripple* |
<0.4 % rms |
| Ambient Operating Temperature |
10-40 °C |
| Dimensions (W x D x H) [in. (mm)] |
305 x 406 x 132 |
*When operating an Oriel® Lamp in an Oriel Lamp Housing or Mount from Newport.
