OMEGA HHLM-1MV Light Transducer
omega.com TM OMEGAnetSM On-Line Service http://www.omega.com Servicing North America: USA: ISO 9001 Certified Canada: One Omega Drive, Box 4047 976 Bergar Stamford, CT 06907-0047 Laval (Quebec) H7L5A1 Tel: (203) 359-1660 Tel: (514) 856-6928 FAX: (203)359-7700 FAX: (514) 856-6886 e-mail: info@omega.com e-mail: info@omega.com Internet e-mail info@omega.
INTRODUCTION This instrument is a portable easy use, compact-sized light transducer designed for simple one hand operation. Provides lux unit measurements. SAFETY INFORMATION It is recommended that you read the safety and operation instructions before using the lightmeter. WARNING • To avoid electric shock, do not operate this product in wet or damp conditions. • To avoid injury or fire hazard, do not operate this product in an explosive atmosphere.
SPECIFICATIONS GENERAL Low battery indication: the "Red LED" is displayed when the battery voltage drops below the operating level. Operating Environment: 0°C to 50°C at < 70% relative humidity. Storage Temperature: -20°C to 60°C, 0 to 80% R.H. with battery removed from meter. Accuracy: Stated accuracy at 23°C ± 5°C, <70% relative humidity. Battery: 4 pcs 1.5V (AAA size). Battery Life: 200 hours typical. Dimensions: 170mm(H) x 44mm(W) x 40mm(D). Weight: 200g including batteries.
ELECTRICAL Photometric Formulas: 10.764·footcandles=lux (lumens/meter2) 0.0929·lux=footcandles (lumens/foot2) Rangescale: DMM to 200.0mV range ¸10(20lux), x1(200lux) x10(2000lux), x100(20000lux) x1000(200000lux) Resolution: 0.
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 Temperature Coefficient: 0.1x (specified accuracy)/°C (<18°C or >28°C) OPERATING INSTRUCTIONS Push buttons Range Select Button Press "RANGE" button to select the desired lux range. Each time you press "RANGE" button, the range (and the input range annunciator) incremants, and a new value is displayed.
OPERATION 1. Plug the light transducer test leads into the Vdc input jack and common or ground input jack on the DMM. Observe polarity. 2. Set the DMM to the 200mV range only. 3. Set the light transducer power switch to the desired range (use range button select 20lux, 200lux, 2000lux, 20000lux) or only 200000lux range. 4. Remove the sensor head cover. 5. Hold the sensor head steady and make certain that the light source completely fills the cosine correction dome. 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. • For best accuracy, repeat the measurement several times to ensure that the light source has remained stable. • Avoid flexing the cable excessively at either end of the cable.
Cleaning Periodically wipe the case with a damp cloth and detergent, do not use abrasives or solvents.
8 380 390 400 410 420 430 440 450 460 470 480 490 500 510 520 530 540 550 555 560 570 580 590 600 610 620 630 640 650 660 670 680 690 700 710 720 730 740 750 760 Wavelength (nm) Vl CIE Photopic Luminous Effciency Coefficient 0.0000 0.0001 0.0004 0.0012 0.0040 0.0116 0.0230 0.0380 0.0600 0.0910 0.1390 0.2080 0.3230 0.5030 0.7100 0.8620 0.9540 0.9950 1.0000 0.9950 0.9520 0.8700 0.7570 0.6310 0.5030 0.3810 0.2650 0.1750 0.1070 0.0610 0.0320 0.0170 0.0082 0.0041 0.0021 0.0010 0.0005 0.0003 0.0001 0.
WARRANTY 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. This ensures that OMEGA's customers receive maximum coverage on each product. If the unit should malfunction, it must be returned to the factory for evaluation.
It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is 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.
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