Gould-Bass DLM-1500

MODEL
DLM-1500

DIGITAL RADIOMETER WITH LUMINANCE SENSOR

FEATURES/BENEFITS

Meets AMS, ASTM, & Mil Standards
NIST Traceablilty assures meter accuracy
Includes illuminance and luminance sensors
Luminance sensor range 0-199,900 Footlamberts
Illuminance Lux or Footcandle sensor option reads accurately 0-1999 Footcandles or Lux, 380-700 nm range (spectral)
Illuminance corrected to CIE curve
Constantly fluorescing LCD - DigiGlo Readout
Auto zeroing display requires no adjustment
Durable polymer case for rugged NDT use
Low battery indicator
Accuracy ± 5%

The Gould-Bass DLM-1500 Digital Radiometer is a portable, 3-1/2 digit instrument that measures a spectral range of 380-700 nanometers both luminance in Footlamberts, or illuminance (photopic response) in your choice of Footcandles or Lux

The latest LSI circuit design and display technology is used to achieve the lowest possible component count. This, in turn, assures reliability, accuracy, stability, and rugged dependability. In combination with its functional and aesthetic design, the Gould-Bass DLM-1500 is the easiest to handle light measuring instrument available today. The "DigiGlo" LCD display provides constant fluorescent illumination with no battery draw.

Easy to Operate

Simply slide the power switch to the "On" position
Place the sensor where the illuminance/luminance is to be measured
The illuminance/luminance is indicated on the DigiGlo LCD
Lux or foot-candles are indicated at 1 x the display reading (depending on the sensor used)
Footlamberts are indicated at x100 the display reading

Technical Data
Model Number	DLM-1500
Part Number	N410393001
Sensors Included	N410394001 "F"Luminance Sensor (Footlamberts) N410401001 "C" Illuminance (Foot candles or Optional Lux)
Readout Display	13mm (0.5 in.) Constant fluorescing
Readout Sampling Time	0.4 Seconds
Range	0-199,990 Footlamberts 0-1999 Footcandles
Spectral Range	"F" Luminance Sensor....380 - 700 nm "C" FC Sensor.....380 - 700 nm "L" Optional Lux Sensor.... 380 - 700 nm
Power Requirement	One 9-volt battery (provided)
Battery Life	150 - 200 Hours Current drain 2 mA(approx.)
Temperature Ranges: - Operation - Storage	0 - 50 Deg. C (32 - 122 Deg. F) 10- 50 Deg. C (48 - 122 Deg. F)
Humidity Range	0 to 100% R.H. Non-condensing
Dimensions: - Readout Unit Only - Sensor Head Only - DLM-1500 in Polymer Case	108mm x 73mm x 23mm 70mm x 52 mm x 17 mm 250mm x 190mm x 70mm
Weight	454 g (1 lb.)
Recommended Calibration Interval	The DLM-1500 radiometer should be returned to the factory every six months for recalibration and routine inspection service. The recommended six month interval is based upon normal usage of intermittent readings. If the sensors are used continuously, recalibration should be performed more often. Visible sensors are calibrated to accurately read incandescent light sources, unless a fluorescent light calibration is requested.

Gould-Bass Company, Inc., - 1431 W. Second Street, Pomona, CA 91766 - (909)623-6793, - FAX (909)629-1467