CHAUVIN ARNOUX C.A 811 Light Meter User Manual

: June 17, 2024
: CHAUVIN ARNOUX

Table of Contents

CHAUVIN ARNOUX C.An 811 Light Meter
Product Information
Product Usage Instructions
PRESENTATION
DESCRIPTION
USE
SPECIFICATIONS
MAINTENANCE
TO ORDER
APPENDIX
contact
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

CHAUVIN ARNOUX C.An 811 Light Meter

Product Information

Specifications

Measurement Range:
- C.A 811: 20 lux, 200 lux, 2000 lux, 20 klux, 20 fc, 200 fc,
  2000 fc, 20 kfc
- C.A 813: 20 lux, 200 lux, 2000 lux, 20 klux, 200 klux, 20 fc,
  200 fc, 2000 fc, 20 kfc
Sensor: Silicon photodiode

Product Usage Instructions

Precautions for Use

Place the protective cover on the sensor when transporting it (to protect the diffuser) and when you are not using it (to reduce the aging of the cell under strong lighting).

Warranty

Our guarantee is applicable for twelve months after the date on which the equipment is made available (extract from our General Conditions of Sale, available on request).

Presentation

C.A 811 and C. A 813 pocket luxmeters are lighting measurement instruments, equipped with a silicon photodiode. They have a digital display and are light and easy to manipulate in one hand.

Description

Sensor equipped with a black protective cover and a spiral lead.
Backlit liquid crystal display:
- Main display: numeric value
- Symbols:
- Low battery
- Last value measured
- Klux / kfc Value of unit displayed
- MAX: Maximum value (C.A. 811)
- PEAK: Peak value (C.A. 813)
Dual-function pushbutton:
- Short press: activates/deactivates display backlighting
- Long press:
- C.A 811 Max value pushbutton control
- C.A 813 Peak value pushbutton control
Pushbutton control to hold a display of the last measurement
Choice of the measurement range

FAQ

Q: How should I transport the luxmeter?
A : Place the protective cover on the sensor when transporting it to protect the diffuser.
Q: How long is the warranty period?
A: The warranty is applicable for twelve months after the date on which the equipment is made available.
Q: What are the main features of the C?An 811 and C.An 813 pocket luxmeters?
A : The luxmeters are equipped with a silicon photodiode, have a digital display, and are lightweight and easy to manipulate in one hand.

Meaning of the symbol

Warning! Please refer to the User’s Manual before using the instrument.In this User’s Manual, the instructions preceded by the above symbol, should they not be carried out as shown, can result in a physical accident or dammage the instrument and the installations.

Thank you for purchasing this C.A. 811 or C.A. 813 pocket luxmeter.

To get the best service from this instrument:
read this user’s manual carefully,
respect the safety precautions detailed

PRECAUTIONS FOR USE

Place the protective cover on the sensor when transporting it (to protect the diffuser) and when you are not using it (to reduce ageing of the cell under strong lighting).
Comply with the environmental conditions (see § 4)

WARRANTY

Our guarantee is applicable for twelve months after the date on which the equipment is made available (extract from our General Conditions of Sale, available on request).

PRESENTATION

C. A 811 and C.An 813 pocket luxmeters are lighting measurement instruments, equipped with a silicon photodiode. They have a digital display and are light and easy to manipulate in one hand.

DESCRIPTION

See § 7. Attachment (at the end of this user’s manual)

Sensor equipped with a black protective cover and a spiral lead.
Backlit liquid crystal display
Main display: numeric value 3½ digits or OL error code
Symbols
Low battery
Last value measured
Klux / kfc Value of unit displayed
MAX Maximum value (C.A. 811)
PEAK Peak value (C.A. 813)
Dual function pushbutton: Short press: activates/deactivates display backlighting Long press:
C.A 811 Max value pushbutton control
C.A 813 Peak value pushbutton control
Pushbutton control to hold a display of the last measurement
Choice of the measurement range
C.A 811: 20 lux…20 klux in 4 ranges
C.A 813: 20 lux…200 klux in 5 ranges
C.A 811 and C.An 813: 20 fc…20 kfc in 4 ranges
3-way switch:
OFF: Switches the instrument off
lux: Lighting measurement unit
fc: Anglo-Saxon lighting measurement unit (footcandles)

USE

Procedure

Place the sensor flat on the surface where you wish to measure the lighting. Move away from the measurement area to avoid influencing the measurement (possibility of shade).
To switch the instrument on: select one of the 2 measurement units with ➅ , and the measurement appears on the display; wait until the displayed value is stabilised and, with ➄, choose the appropriate measurement range.
Configure the instrument according to the type of measurement to be taken using special function keys ➃ or ➂ (see § 3.2).
Record the measured value once the display has stabilized.

The instrument is switched off by returning the cursor of ➅ to the OFF position.
Note: If the lighting to be measured is not within the measurement range, the instrument will display OL; in this case, press briefly on ➄ a few times to choose the appropriate measurement range.

Special functions
See § 2. Description

HOLD: when you press on this key, the instrument freezes on the last value measured, this function is deactivated when the instrument is switched off
MAX: the instrument (C.A 811) displays the maximum value measured; this function is useful when the lighting varies, it is deactivated when the instrument is switched off or the key is pressed again.
PEAK: the instrument (C.A 813) displays the peak value measured; this function is useful when the lighting varies very rapidly, it is deactivated when the instrument is switched off or the key is pressed again

SPECIFICATIONS

Measurement range:
C.An 811 20 lux, 200 lux, 2000 lux, 20 klux
- 20 fc, 200 fc, 2000 fc, 20 kfc
C.A 813: 20 lux, 200 lux, 2000 lux, 20 klux, 200 klux
- 20 fc, 200 fc, 2000 fc, 20 kfc
Resolution: 0.01 lux – 0.01 fc
Accuracy of the C.A. 811 (at 23°C ±5°C , < 75% RH)
- Spectral response: IEC Photopic (see curve below)
- Spectral accuracy: f’1 < 15%
- Cosinusoidal response: f’2 < 2%
- Total accuracy for common light sources: ±18% +2 pt
- Intrinsic error (for a standard light source) (2856 K): ±3% + 10 pt
Accuracy of the C.A. 813 (at 23°C ±5%, < 75% RH)
- Spectral response: IEC Photopic (see curve below)
- Spectral accuracy: f’1 < 8%
- Cosinusoidal response: f’2 < 2%
- Total accuracy for common light sources: ±11% +2 pt
- Intrinsic error (for a standard light source) (2856 K): ±3% +10 pt

Relative sensitivity (%) vs wavelength (nm)

Sensors: Silicon photodiode
Climatic environment
- Utilisation: 0 to +50°C <75% RH
- Storage: -20°C to +60°C , 0 to 80% RH, without battery
Power supply: 9 V battery (type 6LR61 or 6LF22)
Dimensions / Weight: 173 x 60.5 x 38 mm / 190 g with batteries
Electromagnetic compatibility
- Emission as per EN 50081- Ed.. 1992
- Emission as per EN 50082- Ed. 1992
Impermeability: IP 44 as per IEC 60529 (Ed. 89), the instrument must be in its protective case.

MAINTENANCE

For maintenance, use only specified spare parts. The manufacturer will not be held responsible for any accident occurring following a repair done other than by its After Sales Service or approved repairers.

Upkeep

Changing the battery
- Put the switch in the OFF position
- Remove the cover at the back of the instrument
- Replace the old battery with a 9 V battery (6LR61 or 6LF22 type)
Cleaning the housing
Clean the unit with a cloth and a little soapy water. Clean off with a damp cloth. Do not use solvents.

Metrological Checks

All measuring instruments must be regularly calibrated. For checking and calibration of your instrument, please contact our accredited laboratories (list on request) or the Chauvin Arnoux subsidiary or Agent in your country.

Repairs

Repairs under or out of guarantee: please return the product to your distributor.