Description

LM118P is the fifth generation light intensity monitor developed by CHANGEN. It is very helpful to obtain the objective result of the performance of vehicle head lights and rear lights in the EMS test. Normally, during the EMS tests, the subjective results are always found in the test report. These results are deficient for the car factory to judge the EMC performance of the DUT.

LM118P can convert the light strength to DC voltage (≤12V). The output voltage can be measured by oscilloscope and record by data recorder. This kind of result is a relative value, not an absolute value. In addition to the above features, the non-metallized design of the probe has almost no negative effect on the RF energy distribution around the DUT. There are more outstanding designs can be found on LM118P once you tried.

The self-test function of the LM118 is useful for test engineers to adjust the probe status.
Battery is REMOVED.
Extremely small size and easy to fix on the antenna mast(CHANGENTM PM0812) for variable angle / position adjustment. Compact size for storage and extremely low negative effect for radiation field around the DUT.

Function

The response time is quick to nanosecond (ns) level.
Validated for EMC at INFINITE V/m field strength.
The receiver is dual-channel with digital display.
Each channel can work independently and can be used as a backup for each other.
Each channel has a highlight / low light adjustment knob.
Multiple channels can work concurrently, the operation of each channel will not affect the normal operation of other channels.
Continuously changing output voltage based on the monitored light intensity change (≤12V DC).
Excellent solution for obtaining objective evaluation results of vehicle headlight and taillight performance in EMS test.

Specification

Wavelength Sensitivity (λ)	430nm‒1010nm
Output Voltage	0 – 12V (direct ratio to the monitored light intensity)
Output Connector	BNC (F, 50Ω)
Continuous Work Time (h)	Infinite
Input Voltage (for receiver)	AC 100-240V, 50Hz
Dimensions	Detector: 50mm × Φ25mm Receiver: 483mm × 200mm × 44mm
Screw	3/8" inches
Warranty	36 months
Optional Accessories	Probe holder (CHANGEN PM812 with manual gimbal, multi-probe version can be customized)
Temperature	0℃-50℃
Humidity	10-95%
Probe holder	Gimbal
Probe cable	Fiber

Basic Config

Option Config

Link