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EnvironmEntal paramEtErs

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HT22IoT

usEr’s manual

HT2 IoT- 9     User’s    Manual                                         2                                                                               
Application                                                                                                                                             .......................................................................................................................................    4
What is included                                                                                                                                     ...............................................................................................................................   5
 asic requirements, operational safety                                                                                                   .............................................................................................   5
Fitting                                                                                                                                                     ...............................................................................................................................................    6
1. Installation                                                                                                                                       .................................................................................................................................   6
2. External connections diagram                                                                                                         ...................................................................................................   6
Operation                                                                                                                                                ..........................................................................................................................................    7
1. Messages after Switching the Supply on                                                                                         ...................................................................................   7
2. Functions of the button                                                                                                                    ..............................................................................................................   8
3. Connection of the device – configuration                                                                                       .................................................................................   9
4. Functions of the monitor                                                                                                               .........................................................................................................   10
5. Description of HT20IoT monitor reading field                                                                             .......................................................................   10
6. Ethernet 10/100- ASE-T                                                                                                              ........................................................................................................   12
6.1. Connection of 10/100  ASE-T interface                                                                               .........................................................................   12
6.2. Ethernet interface default parameters                                                                                     ...............................................................................   14
6.2.1. Changing the parameters of Ethernet interface                                                               .........................................................   14
6.3 Web Server                                                                                                                               .........................................................................................................................   15
6.3.1 General view                                                                                                                     ...............................................................................................................   16
6.3.2. Selection of Web server user                                                                                           .....................................................................................   18
6.3.3. Messages to the user                                                                                                        ..................................................................................................   19
6.3.4. Access to the archive file through the web server                                                               .........................................................   20
6.3.5 Logic alarms                                                                                                                         ...................................................................................................................   21
6.4 FTP Server                                                                                                                               .........................................................................................................................   22
6.4.1 Selection of FTP user                                                                                                            ......................................................................................................   23
6.5 E-mail service                                                                                                                              ........................................................................................................................   24
6.6 Modbus TCP/IP                                                                                                                           .....................................................................................................................   26
6.6.1. Description of implemented functions                                                                                ..........................................................................   27
6.6.2. Map of registers                                                                                                                   .............................................................................................................   27
6.6.3. Read-only registers                                                                                                              ........................................................................................................   28
6.7 MQTT Protocol                                                                                                                           .....................................................................................................................   29
7. Firmware upgrade                                                                                                                          ....................................................................................................................   31
8. Measured values archiving                                                                                                            ......................................................................................................   33
8.1. The monitor memory structure                                                                                               .........................................................................................   33
8.2. Configuration of archiving                                                                                                     ...............................................................................................   33
8.3. File system internal memory                                                                                                  ............................................................................................   34
8.4. Structure of archive files                                                                                                        ..................................................................................................   35
Accessories                                                                                                                                           .....................................................................................................................................    36

HT2 IoT- 9 User’s Manual 3

7. Technical data ................................................................................................................................. 36

8. Ordering code ................................................................................................................................. 39

HT2 IoT- 9 User’s Manual 4

1. Application

HT2 IoT monitor is designed for continuous measurement and conversion of

relative humidity and ambient temperature into a digital form (prot. Modbus TCP/IP ,

HTTP). The monitor programming is possible with the built-in web server. The monitor has

an LCD display field with 2x16 characters. The device allows you to send e-mail messages

informing about the current environmental parameters as well as events that cause

exceeding the alarm values. The monitor is powered via Ethernet - PoE (Power Over

Ethernet) or standard DC jack.

Features of HT2 IoT monitor:

●measurement, display and archiving of ambient temperature, relative humidity, dew

point and absolute humidity,

●signaling of exceeding set alarm values

●programming logic alarm outputs with reaction to the selected input value.

●real-time clock function with clock supply support in case of the monitor power

failure

●registration of input signals in programmed time

●Ethernet 1 /1 BASE-T

◦protocol: Modbus TCP/IP, HTTP, FTP,

◦services: web server, ftp server, DHCP client, SMTP client,

Values measured and calculated by the monitor:

Temperature,

relative humidity,

dew point,

absolute humidity,

wet bulb temperature,

saturated vapor pressure,

enthalpy.

All quantities and configuration parameters are available through the embedded Web

server, if the parameter is not visible, set it in the tab Settings-> registers on the website.

HT2 IoT- 9 User’s Manual 5

Fig. 1. View of HT20IoT monitor

2. What is included

●HT2 IoT monitor 1 pc.

●User’s manual 1 pc.

3. Basic requirements, operational safety

In terms of operational safety, the monitor meets the requirements of EN 61 1 -1.

Safety instructions

●The assembly and the installation of the electrical connections may be carried out

only by a duly qualified electrician.

●Before turning on the monitor verify the connections.

●The monitor is intended for installation and use in industrial electromagnetic

environments.

●A switch or a circuit-breaker should be installed in the building or facility. It should

be located near the device, easily accessible to the operator, and suitably marked.

HT2 IoT- 9 User’s Manual 6

4. Fitting

4.1. Installation

HT2 IoT monitor is mounted on a wall using a screw connection. The monitor

housing consists of an upper and a lower part.

Fig. 2 Location of mounting holes

4.2. External connections diagram

The monitor has 2 external slots:

- Ethernet port 1 /1 base-T

- DC power socket ɸ5.5 / 2.1 mm

and 1 button to reset the device to the standard parameters - "Reset"

Fig. 3. View of the upper part of HT20IoT monitor

HT2 IoT- 9 User’s Manual 7

5. peration

After wiring, mounting and powering the monitor is ready to work with factory

settings. The monitor can be programmed using the built-in web server.

The following parameters can be programmed in the monitor:

•Ethernet interface settings,

•Modbus settings,

•Archive settings,

•alarm settings,

•SMTP client settings - e-mail (only as unencrypted connection)

•system settings.

Cautio : Do not remove the cover of the sensor as this may damage the device!

5.1. Messages after Switching the Supply on

After power is turned on the display shows the device and the manufacturer’s name

and software version. After about 4s the serial number of the device is displayed and after

subsequent 4s the IP address in the network, if the device has been connected to Ethernet

network - the address can be static or obtained from DHCP server.

HT2 IoT- 9 User’s Manual 8

Fig. 4. Startup messages of HT20IoT monitor

5.2. Functions of the button

The device contains only one physical button for restoring the factory settings or

displaying the current IP address of the monitor. This button is located on the connector

panel – fig. 3.

- restoring factory parameters - after pressing and holding the button for 1 seconds;

Note: each successive restoring of factory parameters enables or disables the service of

obtaining network address from a DHCP server, i.e. if the DHCP service is enabled and

restoring the factory parameters will be forced , the DHCP service will be disabled (you will

be informed about the change by a message on the display) and default static IP address

will be assigned to the device: 192.168.1.19 (subnet mask: 255.255.255. ), another

request for restoring the factory parameters will enable the DHCP server service -

the network parameters will be obtained dynamically from the server;

- displaying the current IP address of the monitor – occurs after a short press

of the button – about 1 sec.

5.3. Connection of the device – configuration

5.3.1. onnection of the monitor to the network equipped with a DH P server

HT2 IoT- 9 User’s Manual 9

The easiest way to connect the HT2 IoT monitor Io the Ethernet network is to use

an existing DHCP server in the network, which assigns the communication parameters to

the devices connected, i.e. IP address, subnet mask, gateway, DNS address. In order to

use the automatic configuration with DHCP server, make sure the monitor is running with

DHCP client service enabled - - to do this, switch on the power of the monitor and observe

the initial messages:

a) message about the monitor operation with DHCP

client enabled – the displayed IP address is the current

address of the monitor acquired from DHCP server;

b) message about the work of the monitor with disabled

DHCP client service - the displayed IP address is the

current address of the monitor set manually or the default

address (after restoring the default parameters); in order

to obtain the address from the DHCP server, restore the monitor to the factory parameters,

point 5.2, and restart the device - then a) message should be displayed with the IP

address obtained from the DHCP server.

In order to further configure the device a computer (tablet, phone) must be

connected to the same Ethernet network (also with DHCP client enabled - automatic

acquisition of IP address), open a web browser and in the browser address field type the

IP address displayed by HT2 IoT. This will display the login screen to log the web server

that will allow further configuration - sign up to the administrator account, p. 5.6.3.2.

After gaining access to the full configuration we recommend that you disable the

DHCP client, leaving the acquired network parameters unchanged – IP address, subnet

mask, gateway, DNS address will be stored as static parameters.

5.3.2. onnecting the monitor to the network without using

DH P server

In order to use static configuration of network parameters, make sure the monitor is

running with the DHCP client service disabled - to do this switch on the power of the

monitor and observe the initial messages:

a) message about the monitor operation with DHCP client

service enabled – the displayed IP address is the current

address of the monitor acquired from DHCP server;

to set the a static IP address factory parameters should be

restored, p. 5.2, and the device should be restarted – then a message should be displayed

b) with the static default IP address.

) a message a out the monitor operation with disa led

DHCP client service - the displayed IP address is the current

address of the monitor set manually or the default IP

HT2 IoT- 9 User’s Manual 1

address (after restoring the default parameters), if the displayed address is different from

192.168.1.19 the factory defaults should e restored twice, p. 5.2;

In order to further configure the device a computer (tablet, phone) must be

connected to the same Ethernet network (or directly to the monitor) and the automatic

acquisition of network parameters must be disabled. Then, the static parameters

corresponding to the default network parameters of HT2 IoTmust be manually entered

into the computer (tablet, phone p. 5.6.2 (the same subnet mask and any IP address from

the pool 192.168.1.X except for the address 192.168.1.19 assigned by default

to HT2 IoT). After the connection, open your web browser and type in the address field of

the browser the default IP address 192.168.1.19. This will display the login screen to log

the web server that will allow further configuration - sign up to the administrator account, p.

5.6.3.2. After logging in to the monitor web server it is possible to change the network

parameters according to our needs - especially the IP address must be changed to make

sure that the monitor does not have the default IP address, otherwise the configuration of

other monitors working in the same Ethernet network will be difficult.

5.4. Functions of the onitor

Monitor HT2 IoT performs the following functions:

•measurement of the ambient temperature and relative humidity,

•calculation of selected physical quantities,

•memory of minimum and maximum values measured and calculated:

◦temperature,

◦relative humidity,

◦absolute humidity,

◦dew point.

5.5. Description of HT20IoT onitor reading field

The HT2 IoT monitor is equipped with a backlit LCD display consisting of two lines

of 16 characters each. The top line of the display is used for the presentation of measured

values - temperature and relative humidity

and to display status pictographs of the file system internal memory. The bottom line of

the display shows the internal memory usage, status of alarm 1, time and date. During

normal operation the monitor displays measured values alternately with their symbols.

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