Dual-Range Light Meter
External sensor with 40 inch
- Traceable Products - 3251
- Unit recalls highest, lowest, and average reading; and includes color-correction filter
- Analog output for strip and chart recorders (0.1 millivolts per digit)
Dual-Range Meter reads both lux and foot-candles on a large 1/2-inch-high display.
An analog output of 0.1 millivolt per digit allows readings to be captured by a recorder. Precision selenium photovoltaic cells and microprocessor provide for a fast-response sampling rate of 0.4 seconds and an automatic zero adjustment. Display update rate may be set to 1 or 2 seconds.
An individually-numbered Traceable® Certificate provided with each unit, assures accuracy from our ISO/IEC 17025:2005 (1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the SI units through NIST or other recognized national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement.
MONITOR AND STORE RESULTS
DATA HOLD button freezes the display to capture readings. Precise photodiode and color-correction filter provide cosine- and color-corrected measurements.
Readings in lux and foot-candles
Dual-Range Meter measures lux in three ranges: 0 to 1999 (1 lux resolution), 2000 to 19,990 (10 lux resolution), and 20,000 to 50,000 (100 lux resolution). Readings in foot-candles: 0 to 199.9 (0.1 Fc resolution), 200 to 1999 (1 Fc resolution), 2000 to 5000 (10 Fc resolution). For accuracy see chart. Unit is supplied with 2 inch diameter photocell, 40-inch cable, Traceable® Certificate, 9-volt alkaline battery, and recorder output. Size is 6-1/2 x 3 x 1-1/2 inches. Weight is 10 ounces. Replacement battery Cat. No. 1112.
|Range 1||0 to 1,999 lux|
|Range 2||2000 to 19,999 lux|
|Range 3||20,000 to 50,000 lux|
|Range 4||0 to 199.9 Foot Candles|
|Range 5||200 to 1999 Foot Candles|
|Range 6||2000 to 5000 Foot Candles|
|Resolution 1||1 lux|
|Resolution 2||10 lux|
|Resolution 3||100 lux|
|Resolution 4||0.1 Foot Candle|
|Resolution 5||1 Foot Candle|
|Resolution 6||10 Foot Candles|
|Accuracy 1||±5% reading + 10 lux|
|Accuracy 2||±5% reading + 100 lux|
|Accuracy 3||±5% reading + 1000 lux|
|Accuracy 4||±5% reading + 1 foot candle|
|Accuracy 5||±5% reading + 10 Foot candles|
|Accuracy 6||±5% reading + 100 foot candles|
|LCD Digit Size||1/2"|
|A/C Plug (Y/N)||Y(Optional)|
|Supplied With||2 inch diameter photocell, 40" cable, battery, recorder output, Traceable® Certificate|