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Martindale Electric Company Ltd was founded in 1928 and
manufactures a large range of electrical test equipment.
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16th Edition Testers
G
All-In-One Testers
G
Calibration Equipment
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Continuity Testers
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Electrician's kits
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Full Calibration & Repair Service
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Fuse Finders
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Digital Clamp Meters
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Digital Multimeters
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Microwave Leakage Detectors
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Motor Maintenance Equipment
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Non-trip loop testers
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Pat testers & Accessories
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Phase rotation
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Proving units
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Socket Testers
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Thermometers & Probes
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Test Leads
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Voltage Indicators
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Specialist Metrohm testers (4 & 5kV)
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Specialist Drummond testers
Martindale Electric Company Limited
Martindale Electric Co Ltd,
Metrohm House, Imperial Park, Imperial Way, Watford,
Hertfordshire, WD24 4PP, UK
Tel: +44 (0)1923 441717 Fax: +44 (0)1923 446900
E-mail: sales@martindale-electric.co.uk
Website: www.martindale-electric.co.uk
E+OE. © Martindale Electric Co. Ltd. 2004
INSTRUCTIONS
LM90/92
LIGHTMETERS
MARTINDALE
E L E C T R I C
Trusted by professionals
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Summary of Contents for MARTINDALE LM90
- Page 1 Martindale Electric Company Ltd was founded in 1928 and manufactures a large range of electrical test equipment. 16th Edition Testers All-In-One Testers Calibration Equipment Continuity Testers Electrician’s kits INSTRUCTIONS Full Calibration & Repair Service Fuse Finders Digital Clamp Meters Digital Multimeters...
- Page 2 The meter has a backlit LCD display, PEAK-HOLD (50m pulse light) and document. Alternatively, a chargeable DATA-HOLD features. collection and return service is available. THIS MANUAL COVERS MODELS LM90 & LM92 Repair & Service There are no user serviceable parts in SAFETY INFORMATION this unit.
- Page 3 The CIE photopic curve is an international standard for the colour response of the average human eye Photometric Formulas: 10.764·footcandles=lux(lumens/meter SEE TABLE ON NEXT PAGE 0.0929·lux=footcandles(lumens/foot Range LM90: 20lux, 200lux, 2000lux, 20klux 20fc, 200fc, 2000fc, 20kfc Range LM92: 200lux, 2000lux, 20klux, 200klux OPERATOR MAINTENANCE 200fc, 2000fc, 20kfc, 200kfc Battery Replacement Resolution: 0.1lux, 0.1fc...
- Page 4 OPERATING INSTRUCTIONS SPECIAL CONSIDERATIONS Push buttons • Keep the plastic domed cosine corrector clean and free of scratches. It may Peak-Hold Switch: be cleaned with a soft cloth and isopropyl alcohol. Press "PEAK" button to toggle in and out of the PEAK-HOLD mode. The " "...
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