MAS Sensor
PHOTODIODE SENSOR
WITH 4-20mA Output
2 Wire, Loop Powered, Microprocessor
The MAS is a two wire, microprocessor photosensor which provides a light level input into lighting control and building automation systems. The MAS has four models which are used in different locations in and around a building. The MAS sensors are powered by 24VDC, but can accept from 18 to 30VDC. The output signal is 4-20mA. This robust signal can travel up to 4,000ft without the signal degrading. Both the 4mA and 20mA values are calibrated to factory standard footcandle settings using NIST traceable equipment; Indoor, Outdoor, Atrium and Skylight.
| Sensor |
Style |
Min Adj |
Max 1/2 X |
Max 1X |
Max 2X |
 |
| MAS-I |
Indoor |
0 |
50 Fc. |
100 Fc. |
200 Fc. |
| MAS-O |
Outdoor |
0 |
125 Fc. |
250 Fc. |
500 Fc. |
| MAS-A |
Atrium |
50 |
500 Fc. |
1,000 Fc. |
2,000 Fc. |
| MAS-S |
Skylight |
100 |
2,500 Fc. |
5,000 Fc. |
10,000 Fc. |
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