<< Click to Display Table of Contents >> Navigation:  Humidity & Temperature Devices > Handheld & Logger > HL-20D > Data Logging

Function overview:

The main characteristics of the data logging function are as follows:

•Relative humidity values are recorded with a resolution of 0.1%RH

•Temperature values are recorded with a resolution of 0.05˚C / 0.09˚F

•Memory capacity: 20,000 single values or value pairs

•Adjustable log interval: from 5 seconds to 1 hour, in increments of 5 seconds

•Two data recording modes: Loop and Start-Stop

 

Note:

Any recorded data present in the data logger memory is automatically erased whenever a new recording session is started.

 

 

Data recording modes:

Loop:                when the memory is full the logger dumps the oldest data sample and keeps recording. The memory retains the most recent data.

Start-Stop:        the logger stops recording data as soon as the memory is full

 

Data recording can be stopped at any time by pressing on the function key (long key press) or with the ROTRONIC HygroSoft software.

 

 

Recorded parameters:

Depending on the model, the data logger records either temperature only or relative humidity and temperature. A calculated value such as dew point cannot be recorded by the HL20 but it can be added to the humidity and temperature data after downloading the recorded data to a PC with the HW4 software.

 

 

Date and time:

The data logger has an internal real time clock that is used to associate a date and time stamp with each data record.

 

When data recording is either started or stopped using the ROTRONIC HygroSoft software, the real time clock can be synchronized with the PC clock.

 

 

Log file format (data download to a PC):

The recorded data can be saved as a file to a PC using the HygroSoft software. It then can be analyzed in Logging and transferred to a PDF report.