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Related Manuals for Omega HHLM-2
Summary of Contents for Omega HHLM-2
- Page 1 OMEGA...
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Page 3: Safety Information
This instrument is a portable easy use 3½ digit, compact-sized digital lightmeter designed for simple one hand operation. Provides selected the lux and fc units. Meter with Backlit LCD display, PEAK-HOLD (50mS pulse light) and DATA-HOLD feature. SAFETY INFORMATION It is recommended that you read the safety and operation instructions before using the lightmeter. -
Page 4: Specifications
symbol on the instrument indicates that the operator must refer to an explanation in this manual. GENERAL Display: 3½ digit liquid crystal display (LCD) with maximum reading of 1999. Overrange: (OL) is displayed. Low battery indication: the " below the operating level. Measurement rate: 2.5 times per second, nominal. - Page 5 ELECTRICAL Photometric Formulas: 10.764·footcandles=lux (lumens/meter 0.0929·lux=footcandles(lumens/foot Range: 20lux,200lux,2000lux,20000lux,20fc,200fc,2000fc,20000fc Resolution: 0.01lux,0.01fc Spectral response: CIE photopic The CIE photopic curve is an international standard for the color response Acceptance angle: ¦ ¢ Total accuracy for CIE standard illuminant A (2856K): ±(3%rdg + 10dgts) 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...
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Page 6: Operating Instructions
OPERATING INSTRUCTIONS Push buttons Back-Light ( >2sec) and Peak-Hold Switch : Press this button to toggle in and out of the PEAK-HOLD mode. The " P MAX " annunciator are displayed.(Response Time:>50mS) Press this button for two seconds to turn the Back-Light on. As this also activates the PEAK-HOLD mode, briefly press the button to return to normal display. -
Page 7: Operation
1. Set the function switch to the desired lux or fc units. 2. Remove the sensor head cover. 3. Hold the sensor head steady and make certain that the light source completely fills the cosine correction dome. 4. 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. -
Page 8: Special Considerations
SPECIAL CONSIDERATIONS • Keep the plastic domed cosine corrector clean and free of scratches. It may be cleaned with a soft cloth and isopropyl alcohol. • When light is received from many directions simultaneously, take special care to avoid reflections or shadowing the sensor with your body. •... - Page 9 Cleaning Periodically wipe the case with a damp cloth and detergent, do not use abrasives or solvents. CIE Photopic Curve Wavelength in Nanometers...
- Page 11 OMEGA warrants this unit to be free of defects in materials and workmanship and to give satisfactory service for a period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time.
- Page 12 constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification. The information contained in this document is believed to be correct but OMEGA Engineering, Inc. accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.
- Page 13 Where Do I Find Everything I Need for Process Measurement and Control? HEATERS PRESSURE/STRAIN AND FORCE FLOW/LEVEL M-2856 OMEGA...Of Course! TEMPERATURE ENVIRONMENTAL MONITORING AND CONTROL pH/CONDUCTIVITY DATA ACQUISITION...