Martindale LM192 Light Meter

SKU: MARTLM192
  • Measures illuminance from 0 to 200,000 Lux
  • Resolution of 0.1Lux and an accuracy of ±3%
  • Detachable light sensor, connected via coiled lead
More Info
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Martindale LM192 Light Meter

The Martindale LM192 Light Meter is a useful lux meter that is capable of measuring illumination from 0 to 200,000Lux with a maximum resolution of 0.1Lux and accuracy of ±3% (with incandescent lamps). These capabilities make the instrument ideal for measuring light levels in offices, workshops and other working environments in order to ensure that spaces are safely and comfortably lit.

The Martindale LM192 has a detachable light sensor that allows the user to measure light levels in precise locations such as in front of a computer screen or on a factory floor. Min/max readings are available on the meter and the user can control the light level as well as picking the unit, range, and using data hold to freeze a reading on screen.

Martindale part number: MARLM192

Key Features

  • Ranges: 0 to 200,000 Lux
  • Max resolution: 0.1Lux
  • Max accuracy: ±3%
  • Ideal for measuring light in workspaces
  • Detachable light sensor
  • Min/max readings and data hold
  • Two-year warranty

What's In The Box?

  • Martindale LM192 Light Meter
  • Transport case
  • 2 x 1.5V AA batteries
  • Instructions for Martindale LM192
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, 26-50°C)
  • Accuracy: ±3% (calibrated to standard incandescent lamp 2856°K) Note 1
  • Angle deviation from cosine characteristics error: 10° ± 1% 30° ± 2%; 60° ± 5% 80° ± 20%
  • Range: 0.0 to 199.9/1999/19990/199900 lx; 0.0 to 19.9/199.9/1999/19990 fc
  • Resolution: 0.1lx, 0.1fc
  • Spectral response: CIE photopic Note 2
  • 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.

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

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