Sper scientific 850011 User manual

Chroma Light Meter
850011
Instruction Manual

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Chroma Light Meter - 850011
Copyright ©2021 by Sper Scientic
ALL RIGHTS RESERVED
The contents of this manual may not be reproduced
or transmitted in any form or by any means electronic,
mechanical, or other means that do not yet exist or may
be developed, including photocopying, recording, or
any information storage and retrieval system without the
express permission from Sper Scientic.

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TABLE OF CONTENTS
PRODUCT INTRODUCTION .................... 4
SAFETY INFORMATION ........................ 5
LCD AND CONTROL PANEL .................... 7
REAR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
PROBE ..................................... 8
MEASUREMENT PROCEDURE .................. 9
MAINTENANCE ............................. 26
BATTERY REPLACEMENT .................... 27
SPECIFICATIONS ............................ 28
WARRANTY ................................ 30

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PRODUCT INTRODUCTION
• Illuminance in Lux or FC
• Color temperature and correlated color temperature
• Custom reference value of color di󰀨erence
Enables precise measurement of illuminance, color
temperature, correlated color temperature or color di󰀨er-
ence simultaneously shown on a backlit display. Excellent
for art galleries and museums, lm and TV studios, lighting
manufacturers, stores and designers. Meets CIE photopic
spectral response and color temperature. Lux and foot
candle selectable with general or LED light modes and a
hold function. Comes in a protective foam lined carrying
case complete with a tripod screw, magnetic mount, 9V
battery and instructions. N.I.S.T. traceable certicate of
compliance available (for lux and foot candles only).
Weight: 16 oz (453g)
Dimensions: 5 ½” x 2” x 1” (140 x 49 x 29 mm)

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SAFETY INFORMATION
Read the following safety information carefully before at-
tempting to operate or service the meter. Only qualied
personnel should perform repairs.
Safety Symbols
CE Certication.
This instrument conforms to the following standards:
EN61326: Electrical equipment for measurement, control
and laboratory use.
IEC61000-4-2: Electrostatic discharge immunity test.
IEC61000-4-3: Radiated, radio-frequency, electromagnetic
eld immunity test.
IEC61000-4-8: Power frequency magnetic eld immunity
test.
Tests were conducted using a frequency range of 80-
1000MHz with the instrument in three orientations. The
average error for the three orientations is ±3% at 3V/m
throughout the spectrum.
However, between 180-500MHz at 3V/m, the instrument
permissive loss of performance is specied by the
specications.
Restrict to use of six substances within electrical and
electronic equipment (EEE), thereby contributing to the
protection of human health and the environment.

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Precautions
Be sure to adhere to the following points to avoid injury.
• Please read the manual carefully to ensure safe and
correct use of this meter before using. Please reread if
necessary.
• Do not immerse the meter in water.
• Do not disassemble or modify the meter.
• Do not attempt to repair it yourself if the meter
malfunctions.
• Only qualied personnel may do it.
• Do not press, push or strike the LCD and sensor head.
• Do not use the meter in places where ammable or
near re.
• Do not use this meter in environments outside the
range of: 32ºF (0°C) to 122ºF (50°C) at Relative
Humidity no higher than 80%.
• When not in use, close the receptor cover.
• Be aware the accumulation of irradiations would cause
the sensor continue to age. Please keep away the light
source and cover with the cap when the unit is not in use.
• If the meter will not be used for a long time, remove the
battery and close the receptor cover.
• Never use organic solvents to clean the meter. (such
as thinner, benzene, etc.)

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A. Data Hold Symbol
B. SET Function Symbol
C. Low Battery Symbol
D. Measuring Symbols of
Primary Reading
E. Measuring Symbols of
Secondary Reading
F. Measuring Symbols of
Tertiary Reading
G. Illuminance Unit
(lx or fcd) Symbol
H. Primary Reading
I. Color Temperature
Unit (K) Symbol
J. Secondary Reading
K. Light Source Symbol
(FL, INC or LED) (522)
L. Tertiary Reading
M. Unit / Down Button
N. Mode Button
O. (Color Di󰀨erence) /
Up Button
P. Power and Hold Button
LCD AND CONTROL PANEL

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REAR
PROBE
Q. Tripod Socket
R. Battery Cover
S. Magnet Position
T. Anti-slippery Pad
U. Receptor Head
V. Receptor Cover
W. Grip

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OPERATION INSTRUCTION
Main Function
Power On/O󰀨
Press and hold the Power button for 2 seconds to turn the
meter on and all of symbols will appear for 2 seconds on
the LCD. After power-on, the meter will measure and show
the readings on the LCD continuously. Press and hold the
Power button for 2 seconds again to turn the meter o󰀨.
Measuring Units
Press the button to select the illuminance (Ev) unit:
Lux (lx) or foot-candle (fcd).
Measuring light source selection(522)
After power-on, select the type of light sources to be
measured.
In the CT or CT display mode, press button
for 3 seconds to select di󰀨erent light source three dif-
ferent light sources can be selected: FL(Fluorescent),
INC(Incandescent) and LED.
The CT value will be more accurate when the selected light
source corresponds to the light source is being measured.
“----”, indicates that the measured CT value exceeds the
light source’s dened value. Please select a di󰀨erent light
source mode.

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Data Hold
While measuring, press the HOLD button once to freeze
the display. HOLD will appear on the LCD. Press HOLD
button again to resume measuring.

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Measuring Modes
Press MODE and buttons simultaneously to switch
between color measurement and color di󰀨erence.
Each has 3 modes:
• Color Measurement:
1. Ev, x, y (Illuminance, Color coordinate)
2. Ev, u’, v’ (Illuminance, Color coordinate, CIE1960)
3. Ev, CT, uv (Illuminance, Color temperature)
Press the MODE button to select your color management
mode.
• Color Di󰀨erence:
1. Ev, x, y (Color di󰀨erence of Illuminance and Color
coordinate)
2. Ev, u’, v’ (Color di󰀨erence of Illuminance and Color
coordinate, CIE1960)
3. Ev, CT(522), u’v’ (Color di󰀨erence of Illuminance
and Color temperature)
This function allows you to measure or check the di󰀨erence
of illuminance, color coordinate color and color temperature
between two or more light sources.
Press the button to select your color di󰀨erence mode.

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Measuring Modes Diagram

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LCD Display in Color Measurement Mode
1. Ev, x, y (Illuminance, Color Coordinate)
2. Ev, u’, v’(Illuminance, Color Coordinate, CIE1960)
3. Ev, CT, uv (Illuminance, Color Temperature)

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LCD Display in Color Di󰀨ference Mode
1. Ev, x, y (Color Di󰀨erence of Illuminance and Color
Coordinate)
2. Ev, u’, v’ (Color Di󰀨erence of Illuminance and Color
Coordinate, CIE1960)
3. Ev, CT(522), u’v’ ((Color Di󰀨erence of Illuminance
and Color Temperature)

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SET Function
Color Di󰀨erence: This function allows you to set certain
reference values (Evref, xref, yref, u’ref, v’ref, CTref(522)) to
compare with the target color.
Set the Reference Value
You can select one of these color di󰀨erence modes
to set:
1. Ev, x, y
2. Ev, u’, v’
3. Ev, CT(522), u’v’
In the Color Di󰀨erence mode, press the button and
hold for 3 seconds into set mode.

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Set the reference values in either of two methods:
5-2-1. Use the measured values and adjust it manually
as the reference values.
5-2-2. Use previous values stored in memory and adjust
manually as the reference values.
The di󰀨erence between method 5-2-1 and 5-2-2 is whether
the Data Hold was enabled before entering the set mode.
Note:
Color di󰀨erence = (Measured value) – (Reference value)
Example:
Ev = Evmeas – Evref
x = xmeas – xref
y = ymeas – yref
u’ = u’meas – u’ref
v’ = v’meas – v’ref
CT = CTmeas – CTref (522)

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Using the Measured Values
Select the (Ev, x, y) mode rst and measure a light source.
1. Press the HOLD button to hold these values that you
want to use as your reference values.
2. Press the button once to toggle the color di󰀨erence
mode.
3. Press the button again and hold for 3 seconds to
toggle the set reference values mode. The SET symbol
will appear and the Ev symbol will ash on the LCD.
In the set mode, the default of Ev reference will show the
measured value that you held previously.
4. Press the or button to adjust the Ev reference
value (Evref) if necessary.
5. Next press the MODE button to toggle to the next
reference value (xref).
6. Repeat the step 4 and step 5 to adjust the rest of the
reference values (xref and yref).
7. Press MODE button again to return to color di󰀨erence
mode.
EVref → → xref → → yref → → Color
di󰀨erence mode
b. Select the (Ev, u’, v’) mode and repeat step 1~7 to set
the u’ and v’ reference values.
EVref → → u’ref → → v’ref → → Color
di󰀨erence mode

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c. Select the (Ev, CT, uv) mode and repeat step 1~7 to
set the CT reference values. (522)
EVref → → CTref → → Color di󰀨erence mode
Please note that the Ev reference value in the three modes
(Ev, x, y ,Ev, u’, v’ and Ev, CT, uv) remains the same.

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a. Using the measured values to set the reference values
of ( Ev, x, y) mode.

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b. Using the measured values to set the reference values
of ( Ev, u’, v’) mode.