sauter SO 200K User manual

Sauter GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Tel: +49-[0]7433- 9933-199
Fax: +49-[0]7433-9933-149
Internet: www.sauter.eu
Instruction Manual
Digital Lightmeter
SAUTER SO 200K
Version 1.3
08/2017
GB
SO_200K-BA-e1713
PROFESSIONAL MEASURING

2 SO_200K-BA-e-1713
GB
SAUTER SO 200K
Version 1.3 08/2017
Instruction Manual
Digital Lightmeter
The purchase of this SAUTER Digital Lightmeter marks a step forward into the field
of measurement precision. Although this instrument is a complex and delicate in-
strument, its ruggedness will allow many years of use. Please read the following in-
structions carefully and always keep this manual within easy reach.
We hope you are pleased with your high quality Light Meter. If you have any queries,
wishes or helpful suggestions, do not hesitate to call our service number.
Summarize:
1. Instruction ...................................................................................................... 3
2. Features.......................................................................................................... 3
3. Specifications ................................................................................................ 3
4. Name of parts and positions......................................................................... 4
5. Spectral sensitivity characteristics.............................................................. 5
6. Operation instructions .................................................................................. 5
7. Battery check and replacement.................................................................... 5
8. Maintenance................................................................................................... 6
9. Recommended illumination.......................................................................... 6
10. CE Declaration of Conformity..................... Fehler! Textmarke nicht definiert.

SO_200K-BA-e-1713 3
1. Instruction
This digital light meter is a precision instrument used to measure illuminance in the
field. It is totally cosine corrected for the angular incidence of light.
The light meter is compact, tough and easy to handle due to its construction. The
light sensitive component used in the meter is a very stable, long life silicone diode.
2. Features
* Light-measuring levels ranging from 0.1Lux to 200,000 Lux,
0.01 FC to 20,000 FC repeatedly
* High accuracy and rapid response
* Peak-Hold function for holding measuring values
* Unit and sign display for easy reading
* Automatic zeroing
* Meter corrected for Luminous Efficiency function
* The Correction factor doesn’t have to be manually calculated for non-standard light
sources
* Short rise and fall times
3. Specifications
Display: 3 ½ digit LCD
Measuring range: 200; 2,000; 20,000; 200,000 Lux
(20,000 Lux range reading x 10, 200,000 Lux range reading x 100)
20; 200; 2,000; 20,000 FC (20,000 FC range reading x 10)
1 FC= 10.76 Lux
Over range display: Highest digit of “1” is displayed
Accuracy: ±3% rdg ± 0.5% f.s (± 5% rdg ± 10 dgt as > 20,000 Lux / 2,000 FC range).
Calibrated to standard incandescent lamp at colour temperature 2856K
Repeatability: ± 2%
Temperature Characteristics: ± 1%/°C
Measuring Rate: approximately 2.0 times/sec.
Photo detector: one silicone photo diode with filter
Operating Temperature: 0°C to 40°C (32°F to 104°F)

4 SO_200K-BA-e-1713
Operating Humidity: 0 to 70 RH
Storage Temperature: -10°C to 50°C (14°F to 122°F)
Storage Temperature: 0 to 80% RH
Power Source: One 9V battery, 6F22
Battery life (typically): 200h, alkaline battery
Dimensions: 148mm x 70mm x 40mm
Photo detector lead length: 1500mm (approx.)
Photo detector dimensions: 100mm x 60mm x 28mm
Weight: approx. 250g (5.8 oz)
Accessories: Carrying case, instruction manual, battery
4. Name of parts and positions
1. LCD Display: 3 ½ digits with a maximum reading of 1999.
2. Power key: the power key turns the light meter ON or OFF.
3. Data-Peak button: the PEAK key has to be pressed again to clear the peak re-
cording mode.
4. Range button: the range button has to be pressed to change the ranges of
200Lux/20FC; 2,000Lux/200FC; 20,000Lux/2,000FC; 200,000Lux/ 20,000FC circu-
larly.
5. Data-Hold button: If the HOLD key is pressed, the HOLD mode is selected. When
this mode is being selected, the light meter will stop all further measurements.
If the HOLD button is pressed again, this operation will be cancelled and the light me-
ter will be ready to take measurements.
6. Lux/FC Unit button: This key has to be pressed to choose the Lux or FC unit.
7. Photo detector

SO_200K-BA-e-1713 5
5. Spectral sensitivity characteristics
Concerning the detector, the applied photo diode with filters makes the spectral sen-
sitivity characteristic almost meeting the standard C.I.E. (International Commission
on Illumination) photo-optic curve V ( ) as described in the following chart below
6. Operation instructions
1. Power-key: The power key has to be pressed to turn the light meter ON or OFF.
2. Selection of the Lux/FC scale: The range selection switch has to be set to the
desired Lux/FC range.
3. The photo detector cap has to be removed and it has to be faced to the light
source in a horizontal position.
4. The illuminance nominal has to be read from the LCD display.
5. Over range: If the instrument only displays one “1” in the M.S.D., the input signal
has been too strong and a higher range should be selected.
6. Data-HOLD mode: The HOLD key has to be pressed to select the HOLD mode,
the light meter will stop all further measurements.
If the HOLD button is pressed again, this operation will be cancelled and the light me-
ter will return to normal operation.
7. Data-PEAK mode: The PEAK key has to be pressed to select the PEAK mode. If
this item is selected, the light meter stops all further measurements. If the PEAK key
is pressed again, P-H mode is being cancelled and it returns to normal operation.
8. When the measurement is completed, the photo detector cap has to be clipped on
again and the power key has to be turned off.
7. Battery check and replacement
1. As the battery power is not sufficient, the LCD will display the symbol and re-
placement of a new battery type 9V is required.
2. Therefore, the instrument has to be powered off. Then the battery cover has to be
pressed and pushed (at the same time) in the direction of the arrow shows to open.
3. The battery has to be disconnected from the instrument and replaced with a stan-
dard 9V transistor battery.
4. The battery cover has to be snapped on again.

6 SO_200K-BA-e-1713
8. Maintenance
1. The white plastic disc on the top of the detector should be cleaned with a damp
cloth from time to time and if necessary.
2. The instrument may not be stored when temperature or humidity is excessively
high.
4. The calibration interval for the photo detector will vary according to operational
conditions, but generally the sensitivity decreases in direct proportion to the product
of luminous intensity by the operational time.
In order to maintain the basic accuracy of the instrument, a periodical calibration is
recommended.
9. Recommended illumination
Locations Lux
NOTE:
When the photo detector is covered, the instrument will always display “000”;
if not, please find the adjustable resistance on the back of it.