HT20IoT-09 User’s Manual 1. Application HT20IoT 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.
HT20IoT-09 User’s Manual Fig. 1. View of HT20IoT monitor 2. What is included ● HT20IoT 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 61010-1. Safety instructions ●...
HT20IoT-09 User’s Manual 4. Fitting 4.1. Installation HT20IoT 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 10/100 base-T - DC power socket ɸ5.5 / 2.1 mm and 1 button to reset the device to the standard parameters - "Reset"...
HT20IoT-09 User’s Manual 5. Operation 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, •...
HT20IoT-09 User’s Manual 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 –...
Page 9
HT20IoT-09 User’s Manual The easiest way to connect the HT20IoT 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:...
HT20IoT-09 User’s Manual address (after restoring the default parameters), if the displayed address is different from 192.168.1.19 the factory defaults should be 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.
Page 11
HT20IoT-09 User’s Manual Fig. 5 Description of the HT20IoT monitor reading field Table 1, 2 shows the symbols displayed on the LCD, and their meanings. Table 1 Symbol Display mode Meaning constant file system internal memory installed and ready for operation flashing error of file system internal memory flashing...
HT20IoT-09 User’s Manual Symbol Percentage of internal memory usage Measuring ranges exceedings are indicated by displaying special characters on the top line of the LCD: lower exceeding of the range of the displayed value ● upper exceeding of the range of the displayed value ●...
Page 13
HT20IoT-09 User’s Manual Description of the monitor RJ45 slot diodes function: ● yellow LED - illuminates when HT20IoT is properly connected to the Ethernet network 100 Base-T, does not light up when HT20IoT is not connected to the network or is connected to 10-Base-T network.
HT20IoT-09 User’s Manual Table 3 Conductor Signal Conductor color acc. to standard EIA/TIA 568A EIA/TIA 568B white-green white-orange green orange white-orange white-green EPWR+ blue blue EPWR+ white-blue white-blue orange green EPWR- white-brown white-brown EPWR- brown brown 5.6.2. Ethernet interface default parameters Table 4 Name Default value...
HT20IoT-09 User’s Manual Fig. 7. View of the window to change the parameters of the Ethernet interface 5.6.3 Web Server HT20IoT monitor provides its own Web server that allows remote monitoring of measured values and remote configuration and readout of the monitor status. With the web page the user can: ●...
HT20IoT-09 User’s Manual 5.6.3.1 General view Fig. 8. General view of the main website The function of each tile of the website: 1) The view of measurements and after clicking on the tile displaying graphs with trends. 2) Ethernet interface settings. 3) Archive settings and information about memory usage and the process of data dump to the file system memory.
Page 17
HT20IoT-09 User’s Manual 6) Setting the time, LCD display and configuration of our displayed values - the groups of 12 values of any registers of the monitor registers to which we can assign our own name and display them as a separate tile on the website. Defined records can be archived and control the alarms.
HT20IoT-09 User’s Manual Fig. 10. View of a tile displaying a group of our 12 values 5.6.3.2. Selection of Web server user The monitor has two user accounts for the Web server secured by individual passwords: ● user: ”admin”, password: ”admin” - access to configuration and the preview of parameters ●...
HT20IoT-09 User’s Manual guest” login page. "Guest” user account limited to view the measured values on the main page. Log off occurs after 5 minutes of inactivity. 5.6.3.3. Messages to the user The web server is equipped with a system of messages to the user. If the user tries to save the settings into the monitor, a message is returned on the status of such operation.
HT20IoT-09 User’s Manual 5.6.3.4. Access to the archive file through the web server HT20IoT allows for access to archive files through the file manager implemented on the web server that allows the user to retrieve and delete individual files. To start the archive file manager, click on the tile Archive, and then click the button Browse arch.
HT20IoT-09 User’s Manual AL_L - Lower threshold of the alarm AL_H - Upper threshold of the alarm Fig. 17. Types of alarms: a) n-on; b) n-off; c) on; d) off. Caution: In the case of alarm types n-on, n- off, on, off entering AL_L > AL_H will disable the alarm.
HT20IoT-09 User’s Manual FTP client program should work in passive mode, then the connection is established fully by the client (the client chooses the data port). For file transfer with the monitor it is possible to use maximum one connection at the same time, that is why the maximum number of connections must be limited to "1”...
HT20IoT-09 User’s Manual user ”admin” → password: ”admin” ; user ”user” → password ”passftp”. FileZilla can be used as the FTP client. By typing the monitor IP address in the address field we can view and download archive files. 5.6.5 E-mail service HT20IoTmonitors have been equipped with a function to send email messages using SMTP.
Page 25
HT20IoT-09 User’s Manual 1) SMTP server address, for example, "smtp.wp.pl" 2) Address sender, .eg. "MyName@gmail.com" 3) Username registered on the SMTP server 4) The password for the specified account on the SMTP server 5) The name of the first recipient to which the message is to be delivered 6) The name of the second recipient...
HT20IoT-09 User’s Manual 5.6.6 Modbus TCP/IP HT20IoT monitors allow access to internal registers via Ethernet and Modbus TCP/IP Slave. Modbus protocol functions and structure of the registers are described in points 5.5.6.1 – 5.5.6.3. In order to set up a connection it is necessary to set a unique IP address for the monitor and to set the connection parameters listed in table 5.
HT20IoT-09 User’s Manual 5.6.6.3. Read-only registers Value is placed in two successive Writin 16-bit registers. Value is These placed in Unit name registers 32-bit Name reado contain the registers. same data as 32-bit registers of 7500 range. 7000/6000 7500 C Measured temperature 7002/6002 7501 Measured relative humidity...
HT20IoT-09 User’s Manual 7042/6042 7521 Reserved 7044/6044 7522 Progress of internal archive rewriting To the file system 7046/6046 7523 Current time Current time 7048/6048 7524 Date - year Current date - year 7050/6050 7525 Month, day Current date - month, day 7052/6052 7526 Reserved...
Page 30
HT20IoT-09 User’s Manual --HT2x-- - Date 2010-07-05, Time 15:49:46, T=25.06 , RH=45.96 %, DP=12.61 ℃ ℃ AH=10.62 g/m³, UserReg 1=inf, UserReg 2=inf, UserReg 3=inf, UserReg 4=inf, UserReg 5=inf, UserReg 6=inf, UserReg 7=inf, UserReg 8=inf, UserReg 9=inf, UserReg10=inf, UserReg11=inf, UserReg12=inf The first parameter of the published data is the device name (--HT2x--), which can be modified via the website.
HT20IoT-09 User’s Manual 5007...5 writing/reading 0x2D, The MQTT client name written with two characters 0x20, for each register. For example, the client's name in 0x2E, the form 12345 will be saved in the registers as 0x30-0x39 follows: (digits), 4506: 3132 0x41-0x5A 4507: 3334 (uppercas...
Page 32
HT20IoT-09 User’s Manual Prior to the upgrade, remove the housing of the device and connect the RS-485 conductors to the connector marked "BA" After starting the eCon program the speed, mode, the monitor IP address and RS-485 port must be set in the Communication tab. Then click the icon. Connect. Then click the link Upgrade firmware which will display the window of LUMEL UPDATER (LU) –...
HT20IoT-09 User’s Manual Caution: Turning off the power during the software upgrade may result in permanent damage to the monitor! 5.8. Measured values archiving 5.8.1. The monitor memory structure HT20IoT monitors are normally equipped with 4MB of internal memory for storing the the current data recorded by the monitor.
HT20IoT-09 User’s Manual Fig. 23. Types of conditional archiving Ar_L - Lower threshold of archiving Ar_H - Upper threshold of archiving 5.8.3. File system internal memory HT20IoT monitors are equipped with file system internal memory. FAT and FAT32 file systems are supported. During operation the HT20IoT monitor creates file directories containing historical data..
HT20IoT-09 User’s Manual - start.txt - date and time of the file system internal memory installation (when the monitor is restarted after power failure) - manual.pdf - current user’s manual - enarch.gif – graphic file with info about alarms / archiving configuration Caution: If these files are deleted, some elements of the website - hints, instructions, may not be displayed;...
HT20IoT-09 User’s Manual 6. Accessories HT20IoT monitors are available with additional accessories such as D.C. and PoE IEEE 802.3af. power supply units Table 7 shows the available items with their commercial codes. Table 7 No. Accessory Appearance Ordering code Technical data 6 VDC 20-072-00-00094 Voltage: 6 V d.c.
Page 37
HT20IoT-09 User’s Manual – calculated quantities: absolute humidity (a) [g/m 3 ] dew point temperature (Td) [°C] Ethernet Interface: 10/100-Base-T - max. number of simultaneous connections Nominal operating conditions: power supply: 6 V d.c. – or PoE IEEE 802.3af power consumption: < 2 VA –...
Page 38
HT20IoT-09 User’s Manual Parameters of DC power supply unit (option): – voltage 6 V d.c. ± 5% – maximum power 6W – input voltage 90...253 V a.c. – operating temperature 0...40 – dimensions 63.6 x 29.5 x 45.6 mm – cable length 1.4 m ± 10% –...
Page 39
HT20IoT-09 User’s Manual 8. Ordering code Table 8 Humidity and temperature monitor HT20IoT Power supply*: 6 V d.c. 6 V d.c. , PoE IEEE 802.3af Accessories: none 6 V d.c. power supply unit Version: Standard Special Language: Polish English other Acceptance tests: without additional requirements with quality inspection certificate...
Page 40
Sifam Tinsley Instrumentation Ltd Sifam Tinsley Instrumentation Inc. Unit 1 Warner Drive, 3105, Creekside Village Drive, Springwood Industrial Estate Suite No. 801, Kennesaw, Braintree, Essex, UK, CM72YW Georgia 30144 (USA) E-mail: sales@sifamtinsley.com E-mail Id : psk@sifamtinsley.com Web: www.sifamtinsley.com/uk Web: www.sifamtinsley.com Contact: +44(0)1803615139 Contact No.: +1 404 736 4903...
Need help?
Do you have a question about the HT22IoT and is the answer not in the manual?
Questions and answers