Eigenschaften
Weightings in scales	A / C
Dimensions / weight	262 x 75 x 39 mm / 390 g

The CA 1310 from Chauvin Arnoux is an integrating sound level meter of Class 2 according to the standard IEC 61672-1, designed for precise measurement of ambient and noise levels in various application scenarios. The device is particularly suitable for checking noise levels at workplaces, for noise measurements on ventilation and air conditioning systems, as well as for acoustic tests in buildings or for assessing noise disturbances caused by neighbour noise. With a measurement range of 30.0 to 130.0 dB and a frequency range of 20 Hz to 8 kHz, it covers the range relevant for most applications. The accuracy is ± 1 dB under reference conditions (94 dB, 1 kHz), ensuring reliable measurement.

Applications
The CA 1310 is used in various industries where compliance with noise limit values is required. These include industry, building acoustics, environmental monitoring, and occupational safety control. The measurement of the equivalent continuous sound level (Leq) enables the evaluation of noise over longer periods, while the measurement of sound pressure level (SPL) captures instantaneous values. The MaxL and MinL functions are used to record the maximum and minimum sound levels during a measurement. The integration time for Leq can be set between 10 seconds and 24 hours, allowing adaptation to different measurement tasks.

Functions and Equipment in Detail
The device features a data logger function that can store up to 64,000 measurement values with timestamps. These data can be evaluated on a PC using the included SL software. The software offers graphical representation of measurement values, table view, data export, and real-time monitoring. The device display is digital and shows the sound level, a bar graph (bargraph), as well as the date and time of the measurement. The display is illuminated, making it easily readable even in poor lighting conditions. The device is equipped with a removable microphone that can be extended using an optional 5 m long extension cable.

Technology Explained Simply
The CA 1310 uses an electret condenser microphone with a ½" diameter. The measurement values are evaluated using frequency weightings A and C, where curve A takes into account the sensitivity of the human ear depending on frequency. Time weighting is performed in the modes Fast" (125 ms) and "Slow (1 second), influencing the device's response to rapid or slow sound changes. Power supply is via four 1.5 V AA batteries, with a battery life exceeding 60 hours. Alternatively, the device can be operated via a Micro-USB connection to mains power. An analog output (jack plug) allows connection to external devices.

Compatibility and Accessories
Various accessories are available for use with the CA 1310. These include a windscreen to reduce wind noise during outdoor measurements, a USB power adapter for mains operation, and a fast charging set (fast charger + 4 NiMH AA batteries), which is offered as a discontinued model. The included SL software enables evaluation of stored data and creation of measurement reports.

Mounting and Installation
The device is equipped with a tripod thread, allowing it to be mounted on a tripod for long-term measurements. Operation is via the front panel, with all functions easily accessible. The ergonomic housing fits well in the hand and is compact in size (262 x 75 x 39 mm, weight 390 g with batteries). The protection rating IP 40 protects against dust and splashing water, enabling use indoors and for light outdoor applications.

Advantages in Operation
The CA 1310 offers high measurement accuracy and reliability due to compliance with IEC 61672-1 Class 2. The integrated data logger function with storage of up to 64,000 measurement values and timestamps enables detailed evaluation. The included SL software supports analysis and documentation of results. The combination of easy handling, long operating time, and versatile measurement functions makes the device a reliable tool for professional acoustic measurements.

Scope of Delivery
The device is delivered with a carrying case, a spherical windscreen, the SL software, a Micro-USB cable, and an operating manual. Batteries are also included in the scope of delivery.