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Martindale LM195 LED Light Meter

Martindale
SKU: MARTLM195
  • Measure illuminance from 0 to 200,000Lux
  • Adjust for different light sources (LEDs, fluorescent, incandescent)
  • Detachable light sensor is easy to position with precision
More Info
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Martindale LM195 LED Light Meter

The Martindale LM195 LED Light Meter is a general purpose light meter that is ideally suited to measuring illuminance from modern LED lighting systems. It is capable of measuring 0 to 200,000 Lux across several different ranges with a maximum resolution of 0.1Lux and an accuracy of ±3% or ±8% depending on the light source. This makes it a useful instrument for ensuring that lighting in commercial and industrial workplaces achieves an adequate level of illumination.

Readings are taken through the Martindale LM195’s detachable light sensor which is connected to the main unit with a coiled lead. The user can set different modes that accurately compensate for different light sources (different coloured LEDs, incandescent bulbs, fluorescent lamps) so the meter is suitable for a variety of different environments. Readings are shown on the clear digital display - min/max recording is available - and operation is carried out using intuitive push buttons.

Martindale part number: MARLM195

Key Features

  • Range: 0 to 200,000Lux
  • Max resolution: 0.1Lux
  • Max accuracy: ±3% ± 5 counts
  • Detachable light sensor
  • Correction for LED, fluorescent and incandescent sources
  • Check light conditions in working environments

What's In The Box?

  • Martindale LM195 LED Light Meter
  • Soft carry case
  • 2 x 1.5V AA batteries
  • Instructions for Martindale LM195
Specification

All specified accuracies are at 25°C ±1°C, <80% R.H. for 1 year

  • Temperature coefficient: 0.1 x (specified accuracy) per °C (0-24°C, 26-40°C)
  • Accuracy: ±3% rdg ±5 dgts (Standard A light source) Note 1; ±8% (other visable light sources)
  • Spectral response: CIE photopic Note 2
  • Range: 0.0 to 199.9/1999/19990/199900 lx; 0.00 to 19.99/199.9/1999/19990 fc
  • Resolution: 0.1lx, 0.01fc
  • Angle deviation from cosine characteristics error: 10° ± 1% 30° ± 2%; 60° ± 5% 80° ± 20%
  • Light detector: SI photodiode

Note 1: The CIE standard illuminant A can be realised by means of CIE standard source A, which is defined as: A gas-filled tungsten-filament lamp operating at a correlated colour temperature of 2856K.
Note 2: The CIE photopic curve is an international standard for the colour response of the average human eye.

Preset Light Source Weighting:

  • L0: Standard Incandescent Light Source
  • L1: LED White Daylight
  • L2: LED Amber (Yellow) Light
  • L3: LED Green Light
  • L4: LED Red Light
  • L5: LED Blue Light
  • L6: Warm White Fluorescent Lamp
  • L7: Cold White Fluorescent Lamp
  • L8: User Setup Mode

GENERAL

  • Display: liquid crystal display
  • Sampling rate: twice per second
  • Over range: OL is displayed
  • Power: 2 x 1.5V AA alkaline batteries (IEC LR6, NEDA 15A)
  • Continuous operating time: approximately 80 hours
  • Auto power off: after 30 minutes (can be disabled)
  • Dimensions: 169 (L) x 63 (W) x 37mm (H)
  • Weight: 185g including batteries
  • Includes: storage case, 2 x 1.5V AA batteries and instruction manual.

ENVIRONMENTAL

  • Temperature & Humidity (Operating): 0°C to 40°C d 80% R.H. (Storage): -10°C to 50°C d 70% R.H. with batteries removed
  • Altitude: Up to 2000m
  • Pollution degree: 2
  • EMC: Conforms to BS EN 61326-1