The LSI range offers instruments for the measurement of all the various parameters defining the quality of an environment from the thermal, sound, luminosity and chemical standpoints. The range includes a large variety of sensors and a PC software for data acquisition and elaboration. Particulary for the calculation of the thermal comfort indices (moderate environments) and thermal stress indices (hot and cold environments) from the incoming data. BABUC is a portable instrument for fast measurements with data logging. With a single instrument and a modular kit of probes, it is possible to measure:

• Air, surface, fluid and smoke temperatures
• Mean radiant temperature
• Relative humidity, dew point
• Environmental air speed, airflow in ducts and at vent outlets, and the amount of air changes
• Differential air pressure (filters, exchangers and fans), atmospheric pressure
• Thermal insulation walls (K factor)
• Air quality (CO2, CO concentrations, VOCS, etc.)
• Thermal comfort indices (TO, PMV-PPD)
• Thermal stress indices hot environments (WBGT, HSI, TTS, SWreq, Ereq, DLE, etc.) cold environments (ITR, WCI, TCH)
• Noise
• Illumination
• Meteorological parameters (temperature, humidity, wind speed and direction, solar radiation)


A station for many different monitoring requirements The parameters that should be monitored to determine the quality of an environment cover diverse physical areas: heat, noise, luminosity and chemical.
The Babuc instruments are “multi-measurement” devices which automatically identify the sensor connected, thus permitting:

• one single instrument can be used for different applications
• easy to learn and use, i.e. the operator doesn’t need to master the use and operation of a whole series of instruments, but just one single system
• high purchasing modularity, since it is not necessary to buy different systems, but just a single device and then equip it with additional sensors as new requirements arise



A portable station

The complete system is easily transportable and can be set up on a tripod. Rechargeable batteries assure autonomy of approximately 24-32 hours, depending on the operating conditions and the sensors in use. Complete programmability Babuc adapts to diverse measurement and data acquisition needs. Many parameters related to the operation data acquisition system, are userprogrammable.
The user can set up specific preferences such as:

• the number assigned to a specific acquisition log (survey)
• automatic start/end date and time for the survey
• the acquisition frequency for each probe
• the instrument’s security code.


Information access

All information can be easily viewed on the display: instantaneous values, average, minimum, maximum, standard deviation and trends. Any 80-column serial printer (Xon-Xoff, DTE) can be connected directly to the Babuc to print all stored values without the need of a PC.


Calculated parameters

Depending on the type of probe connected, Babuc can calculate certain derived quantities, the main ones for environment classification being:

Airflow and air changes – using anemometric probes and after having specified the geometry and dimensions of the outlets and ducts and the room volumes, Babuc calculates the volumetric airflow (m3 /sec), its mass (kg/sec) and the amount of air changes.

Hygrothermometric quantities (ISO 7726) – using the psychrometer, Babuc calculates:

• relative humidity using the psychrometric method
• dew point (also available with capacitive hygrometric probes)
• partial vapour pressure, absolute humidity, specific humidity, mixing ratio, damp air enthalpy, radiant temperature (programmable by LSI)

Mean radiant temperature – using the globe thermometer and the air temperature and speed probes, Babuc calculates the average radiant temperature.

WBGT – using the globe thermometer and the natural ventilated temperature probe, Babuc calculates the WBGT thermal stress index; an additional air temperature probe allows Babuc to calculate WBGT for outdoor environments (ISO 7243 standards).

Indices of localized discomfort (ISO7730)

• % of dissatisified by temperature vertical differences (BST130 probe)
• % of dissatisfied by floor temperature (BST130 probe)
• % of dissatisfied by radiant asymmetry (BSR231 probe)
• Heat stress index
• UV index


Link for Brochure and Technical Specs