Control Company 3252 DUAL-DISPLAY LIGHT METER - Manual

Traceable ® is a registered trademark of Control Company ©2009 Control Company. 92-3252-00 Rev. 1 031909
SPECIFICATIONS
Ranges:
Lux: 0 to 1999 Lux
2000 to 19,990 Lux
20,000 to 50,000 Lux
Foot Candle: 0 to 199.9 Fc
200 to 1999 Fc
2000 to 5000 Fc
Relativity: 0 to 1999% (relative to desired range and measured value)
Resolution: 1 Lux (0 to 1999 Lux)
10 Lux (2000 to 19,990 Lux)
100 Lux (20,000 to 50,000 Lux)
0.1 Foot Candle (0 to 199.9 Fc)
1 Foot Candle (200 to 1999 Fc)
10 Foot Candle (2000 to 5000 Fc)
Sampling time: Approximately 0.4 seconds
Case: ABS
plastic
Fail safe: Low battery Indicator
Power: One (1) 9-Volt alkaline battery
Accessories
Supplied:
photo sensor probe, battery, Traceable ® Certificate,
Instructions
FIGURE 1:
DESCRIPTION
3-1 LCD
Display
3-2 Power Button
3-3 Hold Button: press to hold reading
3-4 LUX/FC (Foot Candle) Button
3-5 LCD Contrast Adjustment Knob
3-6 Record Button: press to record results.
3-7 Recall Button: press to show minimum and maximum readings.
3-8 Light Source Button
3-9 Zero
Button
3-10 % Button (Relativity)
3-12 Light Sensor
3-13 Sensor Cover
3-14 Sensor Plug
3-15 Sensor Input Socket
3-16 Computer
Output Socket
3-17 Battery Compartment
DUAL-DISPLAY LIGHT METER OPERATION
1. Turn the meter on by pressing the POWER BUTTON (3-2, fig. 1)
2. Zero Adjustment Cover the LIGHT SENSOR (3-12, fig. 1) with the
SENSOR COVER (3-13, fig. 1) for a more accurate zero reading. Set
the RANGE SWITCH (3-1, fig. 1) to 2000 LUX position. This is the far
left setting. Press the ZERO BUTTON (3-9, fig. 1). The display should
read 0.0. Remove the sensor cover.
3. Select the desired measurement unit by pressing the LUX/FC BUTTON
(3-4, fig. 1). The display will alternate between “Lux” and “Ft-cd” with
each press of the button.
4. Select the desired lighting source by pressing the LIGHT SOURCE
BUTTON (3-8, fig. 1). The lower left portion of the display will alternate
between “L” (Tungsten), “F” (Fluorescent), “S” (Daylight), and “C”
(Mercury) with each press of the button.
5. Select the desired range by switching the RANGE SWITCH (3-1, fig. 1).
The left position (2000 Lux/ 200 Fc) measures 0 to 1999 Lux/ 0 to
199.9 Fc. The middle position (20,000 Lux/ 2000 Fc) measures 2000 to
19,990 Lux/ 200 to 1999 Fc. The right position (50000 Lux/ 5000 Fc)
measures 20,000 to 50,000 Lux/ 2000 to 5000 Fc.
NOTE: If the display shows “-------” then there is too much light for the
meter to read in this range. Select the next higher range. If the display
shows “____” then there is not enough light for the meter to read in
this range. Select the next lower range.
6. Place the LIGHT SENSOR (3-12, fig. 1) directly under the light source
you wish to measure. Hold for at least 0.4 seconds. The meter will
measure the light and display the value. When the range is set to
20000 Lux, “0” will appear on the lower line of the display. This is the
last digit of the reading. When the range is set to 50000 Lux, “00” will
appear on the lower line of the display. These are the last two digit of
the reading for example, if the range is set to 2000 and the reading
displays the following:
The actual reading is 15620 Lux.
7. To hold a measurement on the display, press the HOLD BUTTON (3-3,
fig. 1) while a measurement is being taken. The LCD will show OH
(Data Hold) in the upper left portion of the display to indicate that the
value is a “held” value. To cancel the data hold feature, simply press
the HOLD BUTTON a second time.
8. To show the relative % light measurement, press the % BUTTON (3-
10, fig. 1) while a measurement is being taken. Subsequent
measurements will be shown as a percentage of the value of the
reading when the % BUTTON was pressed. To cancel the % feature,
simply press the % BUTTON a second time.
9. To record a measurement for both Memory Recall and RS—232 Data
Acquisition, press the RECORD BUTTON (3-4, fig. 1) while a
measurement is being taken. The LCD will show REC in the lower left
portion of the display to indicate that the value is being recorded. To
deactivate the record function, press the RECORD BUTTON again.
TRACEABLE ® DUAL-DISPLAY LIGHT METER INSTRUCTIONS