Description
It is ideally suited to ensuring that industrial, office and commercial building lighting achieves the required levels for a healthy working environment. The new light meter can be used for commissioning new installations and checking the performance existing lighting. It provides readings up to 200,000 lux with a maximum resolution of 0.1 lux in the 200 lux range. The tough design makes it suitable for all working areas and the intuitive layout with detachable light sensor makes it easy to take accurate and reliable measurements in all types of application.
The LM195 has all the features of the LM192 Light Meter with the added benefit of the built-in correction factors for LED, incandescent and fluorescent lighting making it suitable for all types of installation.
FEATURES
- Built-in correction factors.
- Light intensity measurement to 199900 lux, 19990 fc.
- Hold, Max and Min functions.
- Low Battery Indication.
- Auto Power Off.
- Backlight.
SPECIFICATIONS
- Temperature coefficient 0.1 x (specified accuracy) per °C (0-24°C, 26-40°C).
- Accuracy 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
0.0 to 19.9/199.9/1999/19990 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.
Environmental
- Temperature & Humidity (Operating) 0°C to 40°C d 80% R.H.
- Temperature & Humidity (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
General Specifications
- 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 37 mm (H).
- Weight 185g including batteries.
