Manual

IN-E-HL-NT-V2_12

Rotronic AG

Bassersdorf, Switzerland

Document code

Unit

HygroLog HL-NT data logger:

instruction manual

Instruction Manual

Document Type

Page

5 of 48

Document title

2. General description of the HygroLog HL-NT

2.1 Models

Basic models without display and keypad

o HygroLog HL-NT2: logger for plug-in HygroClip 2 probe (probe is not included and must

be ordered separately). Probe model HC2-S can be mounted either internally or in the

extended position. Other probe models are external and require an extension cable.

o HygroLog HL-NT3: same as HL-NT2 with 2 additional connectors suitable for a

HygroClip 2 digital probe.

Models with display and keypad

o HygroLog HL-NT2-D: same probe as HygroLog HL-NT2

o HygroLog HL-NT3-D: same probe / probe inputs as HygroLog HL-NT3

Models with internal HC2-S probe pre-installed

o Models HL-NT2-P, HL-NT2-DP, HL-NT3-P and HL-NT3-DP are supplied with an internal

HC2-S probe pre-installed.

2.2 Required accessories

● Models without display/keypad:

The following accessories are required in order to be able to use the logger:

- Any model of docking station (except model DS-NT1)

- Connecting cable docking station to PC

- PC with the ROTRONIC HW4 software installed (version 2.3.0 or higher)

● Models with display/keypad:

In principle, these models can be used without any accessory. However, accessing all of the

product functions and changing some important settings such as the date and time requires the

same accessories as for the models without display.

2.3 HygroLog HL-NT inputs

2.3.1 Probe input 1

HygroLog HL-NT2-P, HL-NT2-DP, HL-NT3-P and HL-NT3-DP: these models are supplied with

an internal HC2-S plug-in probe. This probe can be either retracted or extended. The probe can

also be separated from the logger with an extension cable, and in this case the HC2-S probe may

be replaced with another model of HygroClip 2 probe so as to meet specific application