Instruction/ maintenance manual of the product HHLM-2 Omega
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OMEGA HHLM-2 Digital Lightmeter.
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INTRODUCTION 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.
2 SPECIFICATIONS GENERAL Display: 3½ digit liquid crystal display (LCD) with maximum reading of 1999. Overrange : (OL) is displayed. Low battery indication: the " " is displayed when the battery voltage drops below the operating level. Measurement rate: 2.
3 ELECTRICAL Photometric Formulas: 10.764·footcandles=lux (lumens/meter 2 ) 0.0929·lux=footcandles(lumens/foot 2 ) Range: 20lux,200lux,2000lux,20000lux,20fc,200fc,2000fc,20000fc Resolution: 0.
4 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.
5 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.
6 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.
7 Cleaning Periodically wipe the case with a damp cloth and detergent, do not use abrasives or solvents. CIE Photopic Curve Luminous Efficiency Coefficient Lumen/Watt Conversion Factor Wavelength in N.
8 V l CIE Photopic Photopic Wavelength Luminous Lumen/Watt (nm) Effciency Conversion Coefficient Factor 380 0.0000 0.05 390 0.0001 0.13 400 0.0004 0.27 410 0.0012 0.82 420 0.0040 2.73 430 0.0116 7.91 440 0.0230 15.7 450 0.0380 25.9 460 0.0600 40.9 470 0.
W ARRANTY OMEGA warrants this unit to be free of def ects in materials and wo rkmanship and to give satisfactory ser vice for a period of 13 months from date of purchase. OMEGA W arranty adds an additional one (1) month gr ace per iod to the nor mal one (1) year pr oduct warranty to cov er handling and shipping time .
It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply . OMEGA is constantly pursuing cer tification of its products to the European New Approach Directives . OMEGA will add the CE mark to ev e ry appropr iate device upon certification.
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An important point after buying a device Omega HHLM-2 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Omega HHLM-2 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Omega HHLM-2 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Omega HHLM-2 you will learn all the available features of the product, as well as information on its operation. The information that you get Omega HHLM-2 will certainly help you make a decision on the purchase.
If you already are a holder of Omega HHLM-2, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Omega HHLM-2.
However, one of the most important roles played by the user manual is to help in solving problems with Omega HHLM-2. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Omega HHLM-2 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
