Delta OHM HD2302.0 User manual

Operating manual
Photo-radiometer
HD2302.0
www.deltaohm.com
English
Ke
ep for future
referen
ce.

HD2302 - 2 - V1.10
INDEX
GENERAL CHARACTERISTICS ......................................................................... 3
DESCRIPTION OF THE FUNCTIONS................................................................. 6
PRO ES AND MEASUREMENTS ....................................................................... 8
COMBINED PROBE LP471P-A .............................................................................. 9
COMBINED PROBE LP471A-UVEFF ........................................................................ 9
PROBES LP471PYRA10 - LP471PYRA02 – LP471PYRA03......................................... 9
PROBE LP471SILICON-PYRA ............................................................................ 9
INSTRUMENT SIGNALS AND FAULTS ............................................................ 10
LOW ATTERY WARNING AND ATTERY REPLACEMENT .............................. 11
WARNING ABOU BA ERY USE .......................................................................... 11
WARNINGS .................................................................................................. 12
INSTRUMENT STORAGE ................................................................................ 12
SAFETY INSTRUCTIONS ............................................................................... 13
TECHNICAL SPECIFICATIONS ...................................................................... 14
ECHNICAL SPECIFICA IONS OF HE PHO O-RADIOME ER ........................................... 14
ECHNICAL SPECIFICA IONS OF PROBES IN LINE WI H HE INS RUMEN ........................... 15
PRO ES AND ACCESSORIES ORDERING CODES............................................ 19

HD2302 - 3 - V1.10
GENERAL CHARACTERISTICS
he Photo-Radiometer HD2302.0 is a portable instrument, fitted with a large LCD
display for visualization of the measured data. It measures:
•illuminance;
•luminance;
•PAR;
•irradiance (across VIS-NIR, UVA, UVB and UVC spectral regions or in the
measured effective irradiance according to the UV action curve).
he probes are fitted with the SICRAM automatic detection module, with the factory
calibration settings already being memorized inside. In addition to detection, the unit
of measurement selection is also automatic.
he Photo-Radiometer measures the following instantaneous quantities:
Type of measurement Unit of measurement
Illuminance (PHO ) lux - fcd
Irradia
nce
(RAD
-
UVA
-
UVB
-
UVC
-
UVBC
-
PYRA)
W/m² - µW/cm²
PAR µmol/(m²⋅s)
Luminance (LUM2) cd/m²
Using the Max, Min and Avg function of this instrument respectively obtains the
maximum, minimum or average values.
Other available functions are:
•the relative measurement REL;
•the HOLD function;
•the automatic turning off which can also be disabled.
For further details, see chapter ‘Description of the functions’ on page 6.

HD2302 - 4 - V1.10
Photo-Radiometer
HD2302.0

HD2302 - 5 - V1.10
HD2302.0
1. Input for probes, 8-pole DIN45326 connector.
2. Battery symbol: displays the battery charge level.
3. Function indicators.
4. Secondary display line.
5. DATA key: displays the maximum (MAX), the minimum (MIN) and the average
(AVG) of current measurements.
6. CLR key: resets the maximum, average, and minimum value of the captured
measurements.
7. HOLD key: freezes the measurement.
8. UNIT key: allows selection of the unit of measurement.
9. REL key: enables the relative measurement (displays the difference between the
current value and the logged value when the key is pressed).
10. ON-OFF/AUTO-OFF key: turns the instrument on and off; when pressed
together with the HOLD key, disables the AutoPowerOff function.
11. MAX (maximum value), MIN (minimum value) and AVG (average value)
symbols.
12. Main display line.
13. Line for symbols and comments.

HD2302 - 6 - V1.10
DESCRIPTION OF THE FUNCTIONS
he Photo-Radiometer Model HD2302.0 keyboard is composed of single-function
keys, except the ON-OFF/Auto-OFF key that has two functions (see the description of
the key below).
he pressing of a key is accompanied by a short confirmation "beep": a longer "beep"
sounds if the wrong key is pressed.
Each key specific function is described in detail below.
his key has two functions:
•ON/OFF: to turn the instrument on press ON, to turn it off press OFF.
he turning on enables all display segments for a few seconds, starts an Auto-test
including the detection of the probe connected to the input, and sets the instrument
ready for normal measurement. he following is displayed:
MIN
cm
min s
2
3
m
µ
m
k
>>>
•AUTO/OFF: the AutoPowerOff function can be disabled by simultaneously
pressing this key and the "HOLD" key when turning the instrument on.
During turning on, should no probes be connected, the "PRO " message is displayed
in the line for symbols for a few seconds, while the "ERR" message is shown in the
central part of the display.
When the probe is inserted into a functioning instrument, it is not detected:
as the data are captured upon turning the instrument on, it is necessary to
turn it off and on again.
Caution! Replace the probes when the instrument is off.
he instrument has an AutoPowerOff function that automatically turns the instrument
off after about 8 minutes if no key is pressed during the intervening time.
Press simultaneously the ON/OFF key and the HOLD key to disable this function.
In this case, remember to turn the instrument off using the ON/OFF key: disabling of
the automatic turning off is shown by the blinking battery symbol.
ON/OFF and AUTO/OFF key
Disabling of the automatic turning off

HD2302 - 7 - V1.10
It resets the maximum, average, and minimum value of the captured measurements.
By pressing this key once the maximum (MAX) value of the measurements captured
by the probe connected to the instrument is displayed, updating it with the acquisition
of new samples. By pressing this key again, the minimum (MIN) value is displayed
and by pressing this key a third time the average (AVG) value is displayed.
The acquisition frequency is once a second.
he MAX, MIN and AVG values remain in the memory until the instrument is on, even
after exiting the DA A calculation function. When the instrument is off, the previously
memorized data are cleared. Upon turning on, the instrument automatically starts
memorizing the MAX, MIN and AVG values.
o reset the previous values and start with a new measurement session, press the
CLR key until the FUNC_CLRD message appears.
By pressing this key, the current measurement update is frozen and the "HOLD"
message will appear in the upper left-hand corner of the display. o return to the
current measurement, press the key again.
It is also used to disable the AutoPowerOff function (see the description of the ON/OFF
key).
By pressing this key, the unit of measurement of the main input quantity is
selected: the unit of measurement will appear in the upper part of the display; the
measured value will be displayed in the central line. By repeatedly pressing the UNI
key, the desired unit of measurement can be selected. In the combined probes, UNIT
key allows to select one of the available measures (in these probes, unit of
measurement cannot be changed).
NOTE: he units of measurement available are determined according to the probe
connected to the input, as reported in the following table:
Type of measurement Unit of measurement
Illuminamento (PHO ) lux - fcd
Irradiamento (RAD
-
UVA
-
UVB
-
UVC
-
UVBC - PYRA) W/m² - µW/cm²
PAR µmol/(m²⋅s)
Luminanza (LUM2) cd/m²
It displays the difference between the current value and that measured on pressing
the key. he "REL" message is displayed on the left.
o return to the normal measurement, press the key again.
DATA
key
HOLD key
REL
key
CLR
key
UNIT
key

HD2302 - 8 - V1.10
PRO ES AND MEASUREMENTS
he instrument works with probes of the LP471… series: these are photometric and
radiometric probes that measure:
•illuminance (LP471PHO ),
•irradianace (LP471RAD, LP471UVA, LP471UVB, LP471UVC and LP471UVBC),
•PAR (LP471PAR and LP471PAR02),
•luminance (LP471LUM2),
•effective irradiance in the spectral range of blue light (LP471BLUE),
•illuminance, UVA irradiance and UVA irradiance-illuminance ratio
(Combined probe LP471P-A),
•total effective irradiance UVA + UV-C according to the UV weighting
curve (combined probe LP471A-UVeff for measuring total effective irradiance
in the range 250...400 nm),
•global solar irradiance in the spectral range 400…1100 nm with silicon
photodiode (LP471SILICON-PYRA),
•global solar irradiance in the spectral range 300…2800 nm. Probe consisting
of a Spectrally Flat Class C pyranometer LPPYRA03 and a cable with SICRAM
module (LP471PYRA03),
•global solar irradiance in the spectral range 283…2800 nm. Probe consisting
of a Spectrally Flat Class B LPPYRA02 or Spectrally Flat Class A pyranometer
LPPYRA10 and a cable with SICRAM module (LP471PYRA02 – LP471PYRA10).
All probes, except LUM2, are provided with a diffuser for cosine correction.
Upon turning on the instrument automatically detects the probe connected to the
input: it is sufficient to connect it before turning the instrument on.
he unit of measurement is determined according to the probe connected to the
input: use the UNI key to change the unit of measurement.
In the combined probes, UNIT key allows to select one of the available measures (in
these probes, unit of measurement cannot be changed).
All probes are calibrated in the factory; no calibration is required by the user.
The probe is detected during turn on: if a probe is connected and the
instrument is on, it is necessary to turn it off and on.

HD2302 - 9 - V1.10
COM INED PRO E LP471P-A
LP471P-A is a two sensors combined probe with SICRAM module for measuring
illuminance (lux) with standard photopic spectral response and irradiance (μW/cm2)
in UVA spectral range (315...400 nm, with peak at 365 nm). he probe also provides
the ratio of UVA irradiance and illuminance in µW/lumen (quantity of interest in the
museums field).
Equipped with diffuser for the correction according to the cosine law.
At switching on, the instrument displays alternatively the measures of the two
sensors. Pressing any key (except ON/OFF), automatic commutation is turned off. o
reactivate it, press HOLD and REL keys together.
o select the measure to display, press UNI key.
COM INED PRO E LP471A-UVEFF
LP471A-UVeff is a two-sensors combined probe with SICRAM module for measuring
total effective irradiance according to the UV weighting curve. wo sensors are
used to correctly measure the total effective irradiance in the range 250...400 nm.
Both sensors are equipped with diffuser for the correction according to the cosine law.
he probe provides the total effective irradiance (“Er” at display), the effective
irradiance in the range UV-CB (“BC” at display) and the UVA irradiance (“A” at display).
At switching on, the instrument displays alternatively the measures of the two
sensors. Pressing any key (except ON/OFF), automatic commutation is turned off. o
reactivate it, press HOLD and REL keys together.
o select the measure to display, press UNI key.
PRO ES LP471PYRA10 - LP471PYRA02 – LP471PYRA03
he LP471PYRA… probes measure the global solar radiation in the spectral range
283…2800 nm (LP471PYRA10 and LP471PYRA02) or 300…2800 (LP471PYRA03).
hey are composed of a pyranometer (LPPYRA02, LPPYRA03 or LPPYRA10) and a cable
with SICRAM module.
Since calibration data of pyranometer are saved in SICRAM module, the cable cannot
be used together with other pyranometers.
he global solar radiation is expressed in W/m2 or μW/cm2. Measuring range is
0…2000 W/m2.
No user calibration is required.
PRO E LP471SILICON-PYRA
he LP471SILICON-PYRA probe measures the global solar radiation using a
silicon photodiode in the spectral range 400…1100 nm.
he particular geometry and the diffuser allow the sensor to have a field of view of
180° according to the cosine law.
he probe is suitable for the measurement of natural sunlight. Under overcast skies,
or for reflected light measurements the use of a thermopile pyranometer is
recommended (LP471PYRA10, LP471PYRA02 or LP471PYRA03).
he measurement of global solar radiation is expressed in W/m2 or μW/cm2.
Measuring range is 0…2000 W/m2.
No user calibration is required.

HD2302 - 10 - V1.10
INSTRUMENT SIGNALS AND FAULTS
he following table lists all of the indications displayed by the instrument in different
operating and error situations.
Display indications Description
ATT TOO LOW
CHNG NOW
Indication of insufficient battery charge: it appears when you
turn the instrument on. he instrument issues a long beep and
turns off. Replace the batteries.
CAL
LOST
Program error: it appears after turning on for a few seconds.
Contact the instrument's supplier.
PRO COMM LOST
his appears if the probe has already been detected by the
instrument, but is disconnected. At the same time an
intermittent beep is issued.
FUNC CLRD Maximum (MAX), minimum (MIN) and average (AVG)
values
cleared.
NEW PRO E DET New probe detected.
NO_PR E_ SER_NUM he connected probe's serial number is absent.
OVER
or
- - - -
Measurement overflow: indicates that the probe is measuring a
value exceeding the measuring range.
PLS_EXIT >>> FUNC
RES_FOR_FACT ONLY
Please exit using ESC >>> function reserved to factory
calibration.
PR E_SER #### ####
Serial number #### #### of the connected probe.
PRO
ERR
A probe with SICRAM module has been inserted when not
admissible for that instrument.
SYS
ERR
#
Instrument management program error.
Contact the instrument's supplier and communicate the numeric
code # reported by the display.

HD2302 - 11 - V1.10
LOW ATTERY WARNING AND ATTERY REPLACEMENT
he battery symbol
on the display constantly shows the battery charge status. o the extent that batteries
have discharged, the symbol "empties". When the charge decreases still further it
starts blinking.
In this case, batteries should be replaced.
If you continue to use it, the instrument can no longer ensure correct measurement.
However, the memory data are maintained.
If the battery charge level is insufficient, the following message appears
when you turn the instrument on:
ATT TOO LOW
CHNG NOW
The instrument issues a long beep and turns off. In this case, replace the
batteries in order to turn the instrument back on.
o replace the batteries, proceed as follows:
1. switch the instrument off;
2. unscrew the battery cover counterclockwise;
3. replace the batteries (3 1.5V alkaline batteries - type AA);
4. screw the cover on clockwise.
Malfunctioning upon turning on after battery replacement.
After replacing the batteries, the instrument may not restart correctly; in this case,
repeat the operation.
After disconnecting the batteries, wait a few minutes in order to allow circuit
condensers to discharge completely; then reinsert the batteries.
WARNING A OUT ATTERY USE
•Batteries should be removed when the instrument is not used for an extended
time.
•Flat batteries must be replaced immediately.
•Avoid batteries leaking.
•Always use good quality leakproof alkaline batteries. Sometimes on the market, it
is possible to find new batteries with an insufficient charge capacity.

HD2302 - 12 - V1.10
WARNINGS
1. Do not bend the probe connectors or force them upward or downward.
2. Do not bend or force the contacts when inserting the probe connector into the
instrument.
3. he sensors and filters should not exceed the temperature limits established with
consequent irreparable degradation of their characteristics.
4. Do not drop the probes: as this could cause irreparable damage.
5. Avoid taking measurements in presence of high frequency sources, microwave
ovens or large magnetic fields; results may not be very reliable.
6. he instrument is water resistant and IP67 but should not be immersed in water.
he probe connectors must be fitted with sealing gaskets. Should the instrument
fall into the water, check for any water infiltration. Gently handle the instrument in
such a way as to prevent any water infiltration from the connectors' side.
INSTRUMENT STORAGE
Instrument storage conditions:
•emperature: -25…+65°C.
•Humidity: less than 90%RH without condensation.
•Do not store the instrument in places where:
•humidity is high;
•the instrument may be exposed to direct sunlight;
•the instrument may be exposed to a source of high temperature;
•the instrument may be exposed to strong vibrations;
•the instrument may be exposed to steam, salt or any corrosive gas.
he instrument case is made of ABS plastic: do not use any incompatible solvent for
cleaning.

HD2302 - 13 - V1.10
SAFETY INSTRUCTIONS
Authorized use
he technical specifications as given in chapter ECHNICAL SPECIFICA IONS must be
observed. Only the operation and running of the measuring instrument according to
the instructions given in this operating manual is authorized. Any other use is
considered unauthorized.
General safety instructions
his measuring system is constructed and tested in compliance with the EN61010-1
“Safety requirements for electrical equipment for measurement, control and
laboratory use” and has left the factory in perfect safety technical conditions.
he smooth functioning and operational safety of the measuring system can only be
guaranteed if the generally applicable safety measures and the specific safety
instructions in this operating manual are followed during operation.
he smooth functioning and operational safety of the instrument can only be
guaranteed under the environmental and electrical operating conditions that are in
specified in chapter ECHNICAL SPECIFICA IONS.
Do not use or store the product in places such as listed below:
•Rapid changes in ambient temperature which may cause condensation.
•Corrosive or inflammable gases.
•Direct vibration or shock to the instrument.
•Excessive induction noise, static electricity, magnetic fields or noise.
If the measuring system was transported from a cold environment to a warm
environment, the formation of condensate can impair the functioning of the measuring
system. In this event, wait until the temperature of the measuring system reaches
room temperature before putting the measuring system back into operation.
Obligations of the purchaser
he purchaser of this measuring system must ensure that the following laws and
guidelines are observed when using dangerous substances:
EEC directives for protective labour legislation
National protective labour legislation
Safety regulations

HD2302 - 14 - V1.10
TECHNICAL SPECIFICATIONS
TECHNICAL SPECIFICATIONS OF THE PHOTO-RADIOMETER
Instrument
Dimensions (length x width x height) 140 x 88 x 38 mm
Weight 160 g (complete with batteries)
Material ABS
Display 2x4½ digits plus symbols
Visible area: 52 x 42 mm
Operating conditions
Operating temperature -5…+50 °C
Warehouse temperature -25…+65 °C
Working relative humidity 0…90% RH without condensation
Protection degree of the case IP67
Power
Batteries 3 x 1.5V type AA batteries
Autonomy 200 hours with 1800 mAh alkaline
batteries
Power absorbed with instrument off < 20 µA
Connections
Input for probes 8-pole male DIN45326 connector
Unit of measurement lux - fcd - W/m² - µW/cm² -
µmol/(m²⋅s) - cd/m² - µW/lumen

HD2302 - 15 - V1.10
TECHNICAL SPECIFICATIONS OF PRO ES IN LINE WITH THE INSTRUMENT
For the spectral response curves of the LP471… probes, see the probes
datasheet available on the Delta OHM website.
LP471PHOT - Illuminance probe, with SICRAM module.
Measurement range (lux) 0.10…199.99 …1999.9 …19999 …199.99x103
Resolution (lux) 0.01 0.1 1 0.01 x 103
Spectral range in agreement with standard photopic curve V(λ)
α (temperature coefficient) f6( ) <0.05% K
Calibration uncertainty <4%
f'1 (in agreement with photopic
response V(λ) <6%
f2 (response according to the
cosine law) <3%
f3 (linearity) <1%
f4 (instrument reading error) <0.5%
f5 (fatigue) <0.5%
Class B
Drift after 1 year <1%
Functioning temperature 0…50 °C
Reference Standard CIE n°69 – UNI 11142
LP471LUM2 - Luminance probe, with SICRAM module.
Measurement range (cd/m2) 1…1999.9 …19999 …199.99x103 …1999.9x103
Resolution (cd/m2) 0.1 1 0.01 x 103 0.1 x 103
Optical angle 2°
Spectral range in agreement with standard photopic curve V(λ)
α (temperature coefficient) f6( ) <0.05% K
Calibration uncertainty <5%
f'1 (in agreement with photopic
response V(λ)) <8%
f3 (linearity) <1%
f4 (instrument reading error) <0.5%
f5 (fatigue) <0.5%
Class C
Drift after 1 year <1%
Functioning temperature 0…50 °C
Reference Standard CIE n°69 – UNI 11142
LP471PAR / LP471PAR02 - Quantum radiometric probe for the measurement of the
photon flow in the PAR chlorophyll range, with SICRAM module.
Measurement range (µmol/m2s) 0.1…199.99 200.0…1999.9 2000…10000
Resolution (µmol/m2s) 0.01 0.1 1
Spectral range 400 nm…700 nm
Calibration uncertainty <5%
f2 (response according to the
cosine law) <6%
f3 (linearity) <1%
f4 (instrument reading error) ±1digit
f5 (fatigue) <0.5%
Drift after 1 year <1%
Functioning temperature 0…50 °C

HD2302 - 16 - V1.10
LP471RAD - Irradiance probe, with SICRAM module.
Measurement range (W/m2) 1x10-3…999.9x10-3 1.000…19.999 20.00…199.99 200.0…1999.9
Resolution (W/m2) 0.1x10-3 0.001 0.01 0.1
Spectral range 400 nm…1050 nm
Calibration uncertainty <5%
f2 (response according to the
cosine law) <6%
f3 (linearity) <1%
f4 (instrument reading error) ±1digit
f5 (fatigue) <0.5%
Drift after 1 year <1%
Functioning temperature 0…50 °C
LP471UVA - UVA Irradiance probe, with SICRAM module.
Measurement range (W/m2) 1x10-3… 999.9x10-3 1.000…19.999 20.00…199.99 200.0…1999.9
Resolution (W/m2) 0.1x10-3 0.001 0.01 0.1
Spectral range 315 nm…400 nm (Peak 365 nm)
Calibration uncertainty <5%
f3 (linearity) <1%
f4 (instrument reading error) ±1digit
f5 (fatigue) <0.5%
Drift after 1 year <2%
Functioning temperature 0…50 °C
LP471UV - UV Irradiance probe, with SICRAM module.
Measurement range (W/m2) 1x10-3…999.9x10-3 1.000…19.999 20.00…199.99 200.0…1999.9
Resolution (W/m2) 0.1x10-3 0.001 0.01 0.1
Spectral range 280 nm…315 nm (Peak 305)
Calibration uncertainty <5%
f3 (linearity) <2%
f4 (instrument reading error) ±1digit
f5 (fatigue) <0.5%
Drift after 1 year <2%
Functioning temperature 0…50 °C
LP471UVC - UVC Irradiance probe, with SICRAM module.
Measurement range (W/m2) 1x10-3…999.9x10-3 1.000…19.999 20.00…199.99 200.0…1999.9
Resolution (W/m2) 0.1x10-3 0.001 0.01 0.1
Spectral range 220 nm…280 nm (Peak 260 nm)
Calibration uncertainty <5%
f3 (linearity) <1%
f4 (instrument reading error) ±1digit
f5 (fatigue) <0.5%
Drift after 1 year <2%
Functioning temperature 0…50 °C

HD2302 - 17 - V1.10
LP471UV C - UV C Irradiance probe, with SICRAM module.
Measurement range(W/m2) 1x10-3…999.9x10-3 1.000…19.999 20.00…199.99 200.0…1999.9
Resolution (W/m2) 0.1x10-3 0.001 0.01 0,1
Spectral range 210 nm…355 nm (Peak 265 nm)
Calibration uncertainty <7% (Calibration @ 254 nm)
f3 (linearity) <2%
f4 (instrument reading error) ±1digit
f5 (fatigue) <0,5%
Drift after 1 year <2%
Functioning temperature 0…50 °C
LP471 LUE - Probe for the measurement of effective irradiance in the spectral
range of blue light, with SICRAM module.
Measurement range (W/m2) 1x10-3…999.9x10-3 1.000…19.999 20.00…199.99 200.0…1999.9
Resolution (W/m2) 0.1x10-3 0.001 0.01 0.1
Spectral range 380 nm…550 nm. Blue hazard action curve B (λ)
Calibration uncertainty <10%
f2 (response according to
the cosine law) <6%
f3 (linearity) <3%
f4 (instrument reading error) ±1digit
f5 (fatigue) <0.5%
Drift after 1 year <2%
Functioning temperature 0…50 °C
LP471P-A – wo-sensor combined probe for UVA irradiance and illuminance
measurement, with SICRAM module. For illuminance specifications see
LP471PHO . For UVA irradiance specifications see LP471UVA.
LP471A-UVeff - Combined probe for the measurement of total effective irradiance
according to UV weighting curve, with SICRAM module.
Total effective irradiance
Measurement range (W/m2) 0.010…19.999
Resolution (W/m2) 0.001
Spectral range UV action curve for erythema measurement (250 nm…400 nm)
Calibration uncertainty <15%
f3 (linearity) <3%
f4 (instrument reading error) ±1digit
f5 (fatigue) <0.5%
Drift after one year <2%
Functioning temperature 0…50 °C
Reference standard CEI EN 60335-2-27
UVA Irradiance
Measurement range (W/m2) 0.1… 1999.9
Resolution (W/m2) 0.1
Spectral range 315 nm…400 nm
UV- C Irradiance
Measurement range (W/m2) 0.010… 19.999
Resolution (W/m2) 0.001
Spectral range 250 nm…315 nm

HD2302 - 18 - V1.10
LP471SILICON-PYRA - Probe for the measurement of global solar irradiance,
with SICRAM module.
Measurement range (W/m2) 0…999.9x10-3 1.000…19.999 20.00…199.99 200.0…1999.9
Resolution (W/m2) 0.1x10-3 0.001 0.01 0.1
Spectral range 400 nm…1100 nm
Calibration uncertainty <3%
f2 (response according to the
cosine law) <3%
f3 (linearity) <1%
f4 (instrument reading error) ±1digit
f5 (fatigue) <0.5%
Drift after 1 year <2%
Functioning temperature 0…50 °C
LP471PYRA02/03/10 - “Spectrally Flat” pyranometers, with SICRAM module.
LP471PYRA02 LP471PYRA03 LP471PYRA10
Measuring range (W/m2) 0…2000
Resolution (W/m2) 1
Field of view 2π sr
Spectral range (50%) 283 nm…2800 nm 300 nm…2800 nm 283 nm…2800 nm
Operating temperature -40…80 °C
Technical features according to ISO 9060
Class B C A
Response time (95%) <10 s <20 s <5 s
Zero Offset
a) Response at 200 W/m2 <|±10| W/m2 <|±15| W/m2 <|±7| W/m2
b) Response to 5 K/h ambient
temperature variation <|±4| W/m2 <|±4| W/m2 <|±2| W/m2
c) otal zero offset including the
effects a), b) and other sources <|±15| W/m2 <|±20| W/m2 <|±10| W/m2
Long-term instability (1 year) <|±1|% <|±1|% <|±0.5|%
Non-linearity <|±1|% <|±1,5|% <|±0.2|%
Response according to cosine law <|±18| W/m2 <|±20| W/m2 <|±10| W/m2
Spectral error <|±0.5|% <|±2|% <|±0.2|%
emperature response <1.5% <3% <1%
ilt response <|±2|% <|±2|% <|±0.2|%

HD2302 - 19 - V1.10
PRO ES AND ACCESSORIES ORDERING CODES
LP471PHOT Photometric probe for the measurement of illuminance, with SICRAM
module, spectral response according to standard photopic vision,
diffuser for cosine correction. Measuring range: 0.1…200x103 lux.
Cable length 1.5 m.
LP471RAD Radiometric probe for the measurement of irradiance in the spectral
range 400…1050 nm, with SICRAM module, diffuser for cosine
correction. Measuring range: 1x10-3…2000 W/m2. Cable length 1.5 m.
LP471PAR Quantum-radiometric probe for the measurement of photon flux in
the PAR chlorophyll field (photosynthetically Active Radiation
400…700 nm), with SICRAM module, µmol/m2s measurement, diffuser
for cosine correction. Measuring range 0.1…10x103 µmol/m2s. Cable
length 1.5 m.
LP471PAR02 Quantum-radiometric probe for the measurement of photon flux in
the PAR chlorophyll field (photosynthetically Active Radiation
400…700 nm), with SICRAM module, µmol/m2s measurement, quartz
diffuser for cosine correction. Measuring range 0.1…10x103 µmol/m2s.
Cable length 1.5 m.
LP471UVA Radiometric probe for the measurement of irradiance in the 315…400
nm UVA spectral range, peak at 365 nm, with SICRAM module, quartz
diffuser for cosine correction. Measuring range: 1x10-3…2000 W/m2.
Cable length 1.5 m.
LP471UV Radiometric probe for the measurement of irradiance in the 280…315
nm UV spectral range, peak at 305 nm, with SICRAM module, quartz
diffuser for cosine correction. Measuring range: 1x10-3…2000 W/m2.
Cable length 1.5 m.
LP471UVC Radiometric probe for the measurement of irradiance in the 220…280
nm UVC spectral range, peak at 260 nm, with SICRAM module, quartz
diffuser for cosine correction. Measuring range: 1x10-3…2000 W/m2.
Cable length 1.5 m.
LP471UV C Radiometric probe for the measurement of irradiance in the 210…355
nm UV C spectral range, peak at 265 nm, with SICRAM module,
quartz diffuser for cosine correction. Measuring range:
1x10-3…2000 W/m2. Cable length 1.5 m.
LP471LUM2 Photometric probe for the measurement of luminance, with SICRAM
module, spectral response according to standard photopic vision,
angle of view 2°. Measuring range: 1…2000x103 cd/m2. Cable length
1.5 m.
LP471 LUE Radiometric probe for the measurement of effective irradiance in the
lue light spectral band, with SICRAM module. Spectral range 380…550
nm, diffuser for cosine correction. Measuring range: 1x10-3…2000 W/m2.
Cable length 1.5 m.
LP471P-A Combined probe for the measurement of illuminance, with standard
photopic spectral response, and measurement of irradiance in the
UVA spectral range (315…400 nm, with peak at 365 nm). Diffuser for
cosine correction. Illuminance measuring range: 0.1…200x103 lux.
Irradiance measuring range: 1x10-3…2000 W/m2. he probe provides

HD2302 - 20 - V1.10
the ratio between UV irradiance and illuminance in µW/lumen. With
SICRAM module and 1.5 m cable.
LP471A-UVeff Combined probe for the measurement of effective total irradiance
according to UV action curve (250…400 nm). Diffuser for cosine
correction. he probe provides the effective total irradiance (Eeff), the
effective irradiance in the UV-CB band and UV irradiance. Effective
total irradiance measuring range: 0.01…20 W/m2. Effective irradiance
measuring range B_C: 0.01…20 W/m2. UV irradiance measuring range:
0.1…2000 W/m2. With SICRAM module and 1.5 m cable.
LP L Base with level for photometric and radiometric probes (LP471LUM2
and LP471PYRA... excluded).
LP L3 Adjustable wall mount support for photometric and radiometric probes
(LP471LUM2 and LP471PYRA... excluded).
LP471Silicon-Pyra Pyranometer with Silicon photodiode for the measurement of the
global solar irradiance, diffuser for cosine correction. Spectral
range: 400…1100 nm. Measuring range: 0…2000 W/m2. Fixed
cable length 5 m with SICRAM module.
LP471PYRA02.5 LPPYRA02 Spectrally Flat class B pyranometer with 5 m cable and
SICRAM module.
LP471PYRA03.5 LPPYRA03 Spectrally Flat class C pyranometer with 5 m cable and
SICRAM module.
LP471PYRA10.5 LPPYRA10 Spectrally Flat class A pyranometer with 5 m cable and
SICRAM module.
Delta OHM metrological laboratories LAT N° 124 have been ISO/IEC 17025 accredited
by ACCREDIA in Temperature, Humidity, Pressure, Photometry/Radiometry, Acoustics
and Air Speed. They can provide calibration certificates for the accredited quantities.