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5
OPERATION
1. Plug the light transducer test leads into the Vdc input jack and common or
ground input jack on the DMM. Observe polarity.
2. Set the DMM to the 200mV range only.
3. Set the light transducer power switch to the desired range (use range button
select 20lux, 200lux, 2000lux, 20000lux) or only 200000lux range.
4. Remove the sensor head cover.
5. Hold the sensor head steady and make certain that the light source completely
fills the cosine correction dome.
6. Move away from the sensor head to avoid shadowing it. The sensor head has
a 1.5 meter cable to allow separation between the observer and the measure-
ment location.
7. DMM reading multiplies light transducer illuminance value. If magnitude of lux
is not known, press light transducer RANGE button to the highest range and
reduce until a satisfactory reading is obtained.
8. Cover sensor head to extend sensor life.