Apogee Instruments SE-100 Bedienungsanleitung
APOGEE INSTRUMENTS, INC. | 721 WEST 1800 NORTH, LOGAN, UTAH 84321, USA
TEL: (435) 792-4700 | FAX: (435) 787-8268 | WEB: APOGEEINSTRUMENTS.COM
Copyright © 2022 Apogee Instruments, Inc.
OWNER’S MANUAL
PHOTOMETRIC SENSOR
Model SE-100
Rev: 31-Aug-2022
TABLE OF CONTENTS
Owner’s Manual ............................................................................................................................................................................... 1
Certificates of Compliance ....................................................................................................................................................... 3
Introduction ............................................................................................................................................................................. 5
Sensor Models ......................................................................................................................................................................... 6
Specifications ........................................................................................................................................................................... 7
Deployment and Installation.................................................................................................................................................. 10
Cable Connectors................................................................................................................................................................... 11
Operation and Measurement ................................................................................................................................................ 12
Maintenance and Recalibration............................................................................................................................................. 15
Troubleshooting and Customer Support................................................................................................................................ 16
Return and Warranty Policy................................................................................................................................................... 17
CERTIFICATE OF COMPLIANCE
EU Declaration of Conformity
This declaration of conformity is issued under the sole responsibility of the manufacturer:
Apogee Instruments, Inc.
721 W 1800 N
Logan, Utah 84321
USA
for the following product(s):
Models: SE-100
Type: Photometric Sensors
The object of the declaration described above is in conformity with the relevant Union harmonization legislation:
2014/30/EU Electromagnetic Compatibility (EMC) Directive
2011/65/EU Restriction of Hazardous Substances (RoHS 2) Directive
2015/863/EU Amending Annex II to Directive 2011/65/EU (RoHS 3)
Standards referenced during compliance assessment:
EN 61326-1:2013 Electrical equipment for measurement, control, and laboratory use –EMC requirements
EN 63000:2018 Technical documentation for the assessment of electrical and electronic products with
respect to the restriction of hazardous substances
Please be advised that based on the information available to us from our raw material suppliers, the products
manufactured by us do not contain, as intentional additives, any of the restricted materials including lead (see
note below), mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), polybrominated
diphenyls (PBDE), bis (2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP), and
diisobutyl phthalate (DIBP). However, please note that articles containing greater than 0.1 % lead concentration
are RoHS 3 compliant using exemption 6c.
Further note that Apogee Instruments does not specifically run any analysis on our raw materials or end products
for the presence of these substances, but we rely on the information provided to us by our material suppliers.
Signed for and on behalf of:
Apogee Instruments, August 2022
Bruce Bugbee
President
Apogee Instruments, Inc.
CERTIFICATE OF COMPLIANCE
UK Declaration of Conformity
This declaration of conformity is issued under the sole responsibility of the manufacturer:
Apogee Instruments, Inc.
721 W 1800 N
Logan, Utah 84321
USA
for the following product(s):
Models: SE-100
Type: Photometric Sensors
The object of the declaration described above is in conformity with the relevant UK Statutory Instruments and
their amendments:
2016 No. 1091 The Electromagnetic Compatibility Regulations 2016
2012 No. 3032 The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic
Equipment Regulations 2012
Standards referenced during compliance assessment:
BS EN 61326-1:2013 Electrical equipment for measurement, control, and laboratory use –EMC requirements
BS EN 63000:2018 Technical documentation for the assessment of electrical and electronic products with
respect to the restriction of hazardous substances
Please be advised that based on the information available to us from our raw material suppliers, the products
manufactured by us do not contain, as intentional additives, any of the restricted materials including lead (see
note below), mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), polybrominated
diphenyls (PBDE), bis (2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP), and
diisobutyl phthalate (DIBP). However, please note that articles containing greater than 0.1 % lead concentration
are RoHS 3 compliant using exemption 6c.
Further note that Apogee Instruments does not specifically run any analysis on our raw materials or end products
for the presence of these substances, but we rely on the information provided to us by our material suppliers.
Signed for and on behalf of:
Apogee Instruments, August 2022
Bruce Bugbee
President
Apogee Instruments, Inc.
INTRODUCTION
The human eye is sensitive to radiation from about 380 to 780 nm but is most sensitive in the middle of this range
near 555 nm. The photopic luminosity function (there are different versions, but the CIE 1931 standard is widely
accepted and commonly used) describes the average sensitivity of the human eye, or the average human
perception of brightness, in well-lit conditions. The scotopic luminosity function describes the average sensitivity of
the human eye in dimly-lit conditions.
Illuminance is a measurement of radiant energy on a surface, weighted by the human eye response. Illuminance is
quantified in units of lux or footcandles. Lux is luminous flux (radiant intensity weighted by the photopic luminosity
function) incident on a surface in units of lumens per square meter [lm m-2] and footcandles is luminous flux
incident on a surface in units of lumens per square foot [lm ft-2]. There are 10.7639 square feet in a square meter,
so lux can be converted to footcandles by dividing by 10.7639. Sensors that measure illuminance are referred to by
many names, including light sensors, photometric radiometers, photopic sensors, and lux sensors.
Typical applications of illuminance sensors include determination of optimum light levels in indoor environments
and quantification of material/substance exposure to light.
Apogee Instruments SE series photometric sensors consist of a cast acrylic diffuser, optical filter, photodiode, and
signal processing circuitry mounted in an anodized aluminum housing, and a cable to connect the sensor to a
measurement device. Sensors are designed for continuous illuminance measurement in indoor and outdoor
environments. SE-100 and SE-200 series sensors output an analog voltage that is directly proportional to
illuminance incident on a planar surface (does not have to be horizontal), where the radiation emanates from all
angles of a hemisphere.
SENSOR MODELS
This manual covers the unamplified model SE-100 (in bold below). Additional models are covered in their
respective manuals.
Model
Signal
Measurement Range
SE-100
Self-powered
0-150000 lux
SE-202
0-2.5 V
0-5000 lux
SE-205
0-5 V
0-5000 lux
SE-212
0-2.5 V
0-150000 lux
SE-215
0-5 V
0-150000 lux
A sensor’s model number and serial number are
located on the bottom of the sensor. If you need the
manufacturing date of your sensor, please contact
Apogee Instruments with the serial number of your
sensor.
SPECIFICATIONS
Calibration Traceability
Apogee SE series photometric sensors are calibrated through side-by-side comparison to the mean of four transfer
standard SE-100 photometric sensors under a reference lamp. The transfer standard photometric sensors are
calibrated through side-by-side comparison to the mean of at least two reference photometric sensors under a
reference lamp. The reference photometric sensors are recalibrated on a biannual schedule with a quartz halogen
lamp traceable to the National Institute of Standards and Technology (NIST).
SE-100
Output (sensitivity)
0.001 mV per lux
Calibration Factor (Reciprocal
of Sensitivity)
1000 lux per mV
Calibration Uncertainty
± 5 %
Output Range
0 to 200 mV
Measurement Range
0 to 150000 lux
Measurement Repeatability
Less than 0.5 %
Long-term Drift (Non-stability)
Less than 2 % per year
Non-linearity
Less than 1 %
Response Time
Less than 1 ms
Field of View
180°
Spectral Range
CIE 1931 luminous efficiency function (see spectral response graph)
Directional (Cosine) Response
± 2 % at 45°, ± 5 % at 75°
Temperature Response
Less than 0.1 % per C
Operating Environment
-40 to 70 C; 0 to 100 % relative humidity
Dimensions
30.5 mm diameter, 37 mm height
Mass (with 5 m of cable)
140 g
Cable
5 m of shielded, twisted-pair wire; TPR jacket (high water resistance, high UV stability,
flexibility in cold conditions); pigtail lead wires; stainless steel (316), M8 connector
Spectral Response
The mean relative spectral
response of four SE-100
photometric radiometers
(green) compared to CIE-
1931 curve (dotted).
Cosine Response
Directional, or cosine, response is defined
as the measurement error at a specific
angle of radiation incidence. Error for
Apogee SE series photometric sensors is
approximately ± 2 % and ± 5 % at solar
zenith angles of 45° and 75°, respectively.
Cosine response
measurements were
made by direct side-by-
side comparison to the
mean of four reference
SE-100 photometric
sensors.
DEPLOYMENT AND INSTALLATION
Mount the sensor to a solid surface with the nylon mounting screw provided to prevent galvanic corrosion. To
accurately measure illuminance incident on a horizontal surface, the sensor must be level. An Apogee Instruments
model AL-100 Leveling Plate is recommended to level the sensor when used on a flat surface or being mounted to
surfaces such as wood. To facilitate mounting on a mast or pipe, the Apogee Instruments model AL-120 Solar
Mounting Bracket with Leveling Plate is recommended.
To minimize azimuth error, the sensor should be mounted with the cable pointing toward true north in the
northern hemisphere or true south in the southern hemisphere. Azimuth error is typically less than 1 %, but it is
easy to minimize by proper cable orientation.
In addition to orienting the cable to point toward the nearest pole, the sensor should also be mounted such that
obstructions (e.g., weather station tripod/tower or other instrumentation) do not shade the sensor. Once
mounted, the green cap should be removed from the sensor. The green cap can be used as a protective covering
for the sensor when it is not in use.
Nylon Screw: 10-32x3/8
Nylon Screw: 10-32x3/8
Model AL-120
Model AL-100
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