IN-E-HL20-V1_16
Rotronic AG
Bassersdorf, Switzerland
Document code
Unit
HygroLog HL20 and HL21 data logger:
User Guide
Instruction Manual
Document Type
Page
5
of 23
Document title
2. General description
2.1 Models
Basic models without display
o
HygroLog HL-20: relative humidity and temperature logger, function key, status indicator
(LED), internal sensors protected by a slotted cover.
o
HygroLog HL-21: temperature data logger, function key, status indicator (LED), internal
Pt100 RTD
Models with display
o
HygroLog HL-20D: same as HL20, LC display with backlight, message bar and battery
charge indicator
o
HygroLog HL-21D: same as HL21, LC display with backlight, message bar and battery
charge indicator
2.2 Required accessories
The following accessories are required in order to be able to configure the logger and to download
and view the recorded data:
o
Cable AC3006 or equivalent (plugs into a USB port of the PC)
o
PC with the ROTRONIC HW4 software installed (version 2.4.0 or higher)
© 2015; Rotronic AG
IN-E-HL20-V1_16
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