Instructions

HD32.3 - 3 - V1.4
1. GENERAL FEATURES
HD32.3 is designed for:
• Analysis of hot environments through WBGT index (Wet Bulb Globe Temperature) in pres-
ence or absence of solar radiation.
• Analysis of moderate environments through PMV index (Predicted Mean Vote) and PPD in-
dex (Predicted Percentage of Dissatisfied).
The instrument is provided with three inputs for probes with SICRAM module: the probes have an
electric circuit that communicates with the instrument; the sensor calibration data are saved in its
permanent memory.
All the SICRAM probes can be inserted in one of the inputs: they are automatically recognized
when you switch the instrument on.
The main features of the instrument are:
• Logging: acquisition and memorization of data inside the instrument. Memory capacity: 64
different logging sections, with the possibility to set the acquisition interval of the samples.
You can set the duration of the memorization and, with auto-start function; it’s possible
to set the starting and finishing date and the hour of data memorization.
• The measurement unit of the temperature visualized sizes: °C, °F, °K.
• The system date and hour.
• The visualization of the maximum, minimum and medium statistic parameters and their
cancellation.
• The transfer speed of the data through the serial port RS232.
NOTE: The set acquisition interval is the same for all the probes connected to the instrument.
HD32.3 instrument can contemporarily detect the following sizes:
• Globe thermometer temperature Tg with TP3276.2 or TP3275 probe.
• Wet bulb temperature with natural ventilation Tn with HP3201.2, HP3201 or TP3204S
probe.
• Ambient temperature T with TP3207.2 or TP3207 probe.
• Relative Humidity RH and ambient temperature T with HP3217.2 or HP3217R probe.
• Air speed Va with AP3203.2 or AP3203 probe.
On the basis of the detected measurements, HD32.3 with TP3207.2 (or TP3207), HP3276.2 (or
HP3275) and HP3201.2 (or HP3201 / TP3204S) can calculate:
• WBGT(in) index (Wet Bulb Glob Temperature: wet bulb and globe thermometer tempera-
ture) in absence of solar irradiation.
• WBGT(out) index (Wet Bulb Glob Temperature: wet bulb and globe thermometer tempera-
ture) in presence of solar irradiation.
On the basis of the detected measurements, HD32.3 with HP3217.2 (or HP3217R), HP3276.2 (or
HP3275) and AP3203.2 (or AP3203) probes can calculate:
• Medium radiant temperature Tr.
• PMV index (Predicted Mean Vote).
• PPD index (Predicted Percentage of Dissatisfied).