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Vinostech Co., Ltd.
A company that knows the importance
of environment
THR Series
Humidity/Temperature
Communication Transmitter
Digital Hygro-Thermograph User's Guide
MODEL : THR-2000
(Instruction Manual)
※ Please be sure to read warnings and notes for safety before using
this product.
※ Please understand that the external appearance of this product can be
changed without prior notice.
Rev 4.0 (2016. 4. 5.)
#1413 Woolim e-Biz Center 1cha, 28
Digital-ro 33-gil, Guro-gu, Seoul 152-769 Korea
T e l : 82-2-2108-1498 Fax : 82-2-2108-1497
Homepage : www.vinostech.com
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1. Introduction
Our digital hygro-thermograph (Model : THR-2000) can measure humidity and temperature in the
atmosphere by using a digital sensor. THR-2000 can detect "Sensor open error" and compensate
humidity and temperature using the MCU(Micro Control Unit) on the transducer. THR-2000
produces several alarms for end-users even under harsh conditions.
1.1 Product Feature
■ The display panel of the digital hygro-thermograph (Model : THR-2000) can be seen in the
dark by using the character LCD (16 digits, 2 line with backlight). So end-users can check
the humidity and temperature value even when they are in the dark.
■ The digital hygro-thermograph (Model : THR-2000) can control the humidity and
temperature for precaution and can take prompt action for the field situation with the
built-in alarm functions.
▼ First alarm : This is the function for sounding an alarm and operating the alarm lamp
according to the maximum/minimum value of humidity and temperature. This is a first
alarm.
The alarm lamp color turns orange and sounds an alarm periodically when the value
exceeds the maximum or lacks the minimum.
▼ Second alarm : This is the function for sounding an alarm and operating the alarm lamp
according to the maximum/minimum value of humidity and temperature. This is a last
alarm.
The alarm lamp color turns red and sounds an alarm continually when the value exceeds
the maximum or lacks the minimum.
■ This device has an Ethernet function that can be used for a connection with a network for
managing the integrated humidity and temperature.
▼ It allows data transmission on the network via connected several THR-2000 units.
▼ It allows the humidity and temperature parameter setting on the Ethernet.
■ With the thermal printer option, THR-2000 can record the humidity and temperature data
real-time and can display the graph.
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■ This device has a data logging function to collect humidity and temperature data for
managing humidity and temperature data efficiently.
▼ Total storage capacity is 4 Mbits. The data are cycle-logged and can be stored
approximately more than 45 days on 1 data per 1 minute basis.
▼ THR-2000 has an internal-saving function as a measure for a sudden network error.
■ Vinostech has upgraded THR-2000 to display the humidity and temperature data as a
graph by the program. So end-users can use this function for data output and report
making.
■ THR-2000 can display the dew point through humidity and temperature data using the
Vinostech program.
1.2 Dimensions
Type H(Height) W(Width) L(Length)
General 77.5 157 198
Including Thermal Printer 88.0 157 198
unit : [mm]
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2. Specification
2.1 Mechanical/Electrical Specification
Power Input 12VDC, 3A (SMPS Power adapter)
Current Consumption Max. 1A (Option<Thermal Printer> : Max 3A)
Operating Temperature 0∼70℃ (32 to 158°F)
Storage Temperature -40 to 125℃ (-40 to 257°F)
Case Material ABS Case
Protection Grade IP 65
Ethernet Ethernet : 10Base-T
(Supported Protocols : TCP/IP, DHCP)
Communications RS232C
Main Display Character LCD. 16 digits & 2 lines with backlight
Indicators (LEDs) Network Active, Network Link, 3 color setting alarm
(Humidity and temperature)
User Interface Programmable 5 Keys, Push Button Switch
Logging Memory 45 days of data storage at 1 minute logging intervals
[Table - 2.1] Mechanical/Electrical Specification
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2.2 Sensor Specification
Relative Humidity (RH)
Accuracy/Range±2% RH (10∼90%RH)
±3.5% RH (0∼10, 90∼100%RH)
Non-linearity << 1% RH
Response Time 4 Seconds
Repeatability ±0.1% RH
Resolution 0.1% RH (12bits)
[Table - 2.2] Humidity sensor specification
Temperature (T)
Accuracy/Range±0.3℃
0 ∼ 50℃
Response Time 5 Seconds
Repeatability ±0.1℃ (±0.2°F)
Resolution 0.1℃ (14bits)
[Table - 2.3] Temperature sensor specification
Sensor Characteristic Graphs (Humidity and Temperature)
Relative Humidity with absolute accuracy Temperature accuracy
[Figure - 2.1] Sensor characteristic graphs
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Dew Point (Td)
Values are calculated in accordance with temperature and humidity
Display Range : -99.9 ∼ 99.9℃ (Td)
Dew Point Calculation
Theory
The dew point is the temperature to which the air must be cooled to reach
saturations (assuming air pressure remains the same). When the temperature cools to the
dew point, fog or dew can be produced, and the relative humidity becomes 100%.
Calculation of the dew point
The Magnus formula [Sonntag90] relates the saturation vapour pressure and dew point.
At a temperature T (in ℃), the saturation vapour pressure EW (in Pa) over liquid water is
expressed as:
For the range of -45℃ to 60℃, the Magnus parameters are given as α=6.112m, β=17.62 and
λ=243.12. By re-stating the equation (1), the dew point temperature Dp (in ℃) can be
expressed with vapour pressure E.
Substituting the definition of relative humidity RH (in %), i.e. E = RH*EW/100, into equation
(2) and using the equation (1) help calculate the dew point Dp with the temperature
T and relative humidity RH.
The following simple program calculates the dew point Dp from temperature T, relative
humidity RH and temperature T according to equation (3). All temperatures are in Celsius.
H = (log10(RH)-2)/0.4343 + (17.62*T)/(243.12+T);
Dp = 243.12*H/(17.62-H); //this is the dew point in Celsius
Example : RH=10%, T=25℃ -> Dew point = -8.77℃
RH=90%, T=50℃ -> Dew point = 47.90℃
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[Figure - 2.2] Deviation of simple Magnus formula compared to more complex and precise
formula in [Hardy98]
References
[Sonntag90] Sonntag D.: Important New Values of the Physical Constants of 1986, Vapour
Pressure Formulations based on the IST-90 and Psychrometer Formulae, Z.
Meteorol., 70(5), pp. 340-344, 1990
[Hardy98] Hardy B., Thunder Scientific Corporation, Albuquerque, NM, USA
The proceedings of the Third international Symposium on Humidity & Moisture,
Teddington, London, England, April 1998.
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3. Functions
3.1 Input
The hygro-thermograph (Model: THR-2000) requires the input power of 12V DC and 1A.
(12V DC and 3A when using the thermal printer)
3.2 Output Display
The hygro-thermograph (Model: THR-2000) adopted the character LCD (16 digits and 2 lines
with
backlight) so that the data are easily recognized in the dark.
In addition, it has primary and secondary alarm functions at 2 ranges to display the details as
follows.
3.2.1 Main Display
The hygro-thermograph (Model: THR-2000) adopted the character LCD (16 digits and 2 lines
with backlight) to display humidity, temperature and dew point.
3.2.2 LED Indicator
According to the change of humidity and temperature, green LED is on in normal operation;
orange LED is lighted as a first alarm; and red LED is lighted as a second alarm.
3.2.3 Alarm Lamp Display / Buzzer Sound
They function similarly to the LED indicator, by lighting an alarm lamp or creating a sound
with a buzzer.
The green lamp is on in normal operation without any alarm sound.
The orange lamp is lighted with the first alarm and creates discontinuous alarm sound.
The red lamp is lighted with the second alarm and creates continuous alarm sound.
To eliminate the alarm sound, just press the alarm key in front of the display panel.
3.2.4 Error Display
THR-2000 displays "Sensor Open!!" message on the LCD when the sensor is open, with
continuously flickering green lamp.
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3.3 Communication
The hygro-thermograph (Model: THR-2000) basically provides RS-232C communication
protocol.
RS-232C communication protocol facilitates data transmission and modification of parameters.
For details of protocol and communication, please refer to the appendix.
3.3.1 RS-232(Data Monitor)
RS-232C(Recommended Standard system for serial communications) communication protocol
is used to telemonitor humidity, temperature and dew point using a PC.
HardWare Configurations
▼ RS-232 Specifications
Serial Hardware : RS232C
Parity : None, 1 Stop bit
Baud Rates : 115200BPS
Protocol : Proprietary(Refer to the appendix)
Port Setting
Baud Rates 115200BPS
Data Bit 8
Parity None
Stop Bit 1
Flow Control None
● Real Data Format
Type Humidity Data Temperature CR LF
Display H u m i d i t y 5 4 . 1 % R H , T e m p e r a t u r e 2 5 . 0 ' C 0D 0A
Byte 38
e.g.) Humidity: 54.1% RH, Temperature: 25.0'C+CRLF
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3.4 Network Communication Interfaces
Digital hygro-thermograph (Model : THR-2000) can basically provides connection with the
Ethernet.
Hardware composition
Ethernet : 10Base-T
Supported Protocols : TCP/IP, DHCP
Please refer to the appendix for protocol and communication menu.
Control Center
Remote
controller
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3.4.1 10 Base-T RJ45 Pinout
Digital hygro-thermograph (Model : THR-2000) provides a connection with the 10 Base-T
Ethernet Network. Please refer to [Fig. - 3.1].
RJ45 connection consists of a pair of transmission paths and another pair of reception paths.
Pin Name Description
1 +Tx + Transmit Data
2 -Tx - Transmit Data
3 +Rx + Receive Data
4 N/C Not Connected
5 N/C Not Connected
6 -Rx - Receive Data
7 N/C Not Connected
8 N/C Not Connected
[Fig. - 3.1] Internet connection pin (RJ45 Pinout)
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3.5 Data Log
Digital hygro-thermograph (Model : THR-2000) can store the humidity and temperature data.
Data storage function starts automatically when the power key is switched on.
When the memory is completely filled with the data, the data will be deleted in time order.
Once the data are stored, they are not deleted even though they are downloaded.
The stored data can be downloaded to a PC through the RS-232C communication.
For more detail of the data downloading, please refer to the proprietary protocol in the
appendix 1.
The total memory capacity is 4 Mbits. If you set the time interval at 1 minutes, you can store
more than 45days data. The data backup function protects the stored data even when the
power is off.
▼ Data Logging Specifications
- Communication RS232C, Ethernet (DownLoad)
- Storage method : Cycle Logging
- Logging Memory (4 Mbits)
This unit can store 1440 data a day for 45days (52,560 data).
(Total storage days : 45.4 days)
- Logging Data(Transmission) Format (1 data size)
STX Year Month Day SP Hour Minute SP Humidity Temperature CheckSum ETX
0x02 YY / MM / DD / ⊔ HH : MM ⊔ H999.9 T±99.9 0x?? 0x?? 0x03
※ SP(⊔) : Space character (Space)
e.g.) 0x02 07/05/12⊔12:03⊔H050.9⊔T±023.2DF 0x03
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4. Connections
Buzzer
Sensor Connector
Alarm Lamp(3 Colors)
Power Connector
RS-232 Communications
Connector
Ethernet Connector
Alarm Lamp Connector
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5. Operations
5.1. Front Composition
Save Parameter Mode
Select Parameter
Take Out Recoding
Alarm ON/OFF
Power ON/OFF
Add Value(+)
Subtract Value(-)
Display (Humidity, Temperature, Dew Point)
Character LCD 8*2 with Backlight
Humidity State LED
Temperature State LED
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▼ Key Function
Key Function
MODEMove to the Set mode on the main screen, or move to the next step
during the parameter setting.
FEED Push up the printer paper.
ALARM
Remove the alarm sound.
(One push removes the alarm sound, and another push creates the
alarm sound.)
ENTERMove to the Set mode.
Change the parameter digits.
UP (↑) Increase the parameter value by 1.
DOWN (↓) Decrease the parameter value by 1.
POWERPower ON/OFF.
- Operated by 3 seconds' push (Power on)
5.2. Main Display
Main screen indicates the humidity, temperature and dew point in three steps.
Display Explanation
Display the humidity and temperature.
This screen is the default setting.
Use UP(↑) key to select Sub 1.
Display the humidity and dew point.
Use UP(↑) key to select Sub 2.
Display the dew point and temperature.
Use UP(↑) key to select the Main Display.
※ If you do not use UP(↑) key at each step, the menu will remain unchanged.
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5.3. Program Configurations
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6. Thermal Printer
6.1 Inserting the Recording Paper
6.1.1 Paper / Paper Box Dimensions
▶ Paper installation method
1. Cut the recording paper as in the upper right figure (①).
2. After turning off the power and opening the cover (②), find a slit (③) for the recording
paper inside. Push in the starting section of the recording paper smoothly.
3. When a recording paper comes out of the recording paper discharge slit, pull it out
about 50mm with the left and right balance arranged.
4. Switch the power on and push the FEED key in front two or three times to check the
paper jam.
※ Caution : The power of the hygro-thermograph (THR-2000) must be switched off when
installing the thermal printer recording paper.
(If the power is not switched off before installation, recording paper jam may occur, and
the thermal printer will not work. When paper jam occurs and the thermal printer does not
work, switch off the power immediately and contact the manufacturer.)
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6.1.2 Recording Paper Data
Temperature and humidity recording data are represented as follows.
Temperature & Humidity Range
(Printing: once per 8 counts)
Year/month/day hour:minute:second
(Printing: once per 18 counts)
Temperature & Humidity Unit
(Printing: once per 18 counts)
Temperature & Humidity Indication
(Printing: once per 18 counts)
Temperature & Humidity Graph
(Printing: once (8 dots) per setting time)
1. Time interval can be set up for the recording data, which can vary from 000 to 999
minutes.
(If you set it at 000, the thermal printer will not operate.)
2. The display scope of temperature graph is -5 ~ 55℃, and the display scope of humidity
graph
is 5 ∼ 95% RH.
3. At the setting of 001 minute, 8 dots per minute will be printed, and at the setting of 060
minutes (one hour), 8 dots per 060 minutes (one hour) will be printed (Fixed setting,
modification unavailable).
4. Year/month/day, time and temperature/humidity unit and indication are printed once per 18
counts, with 1 count (8 dots) as the basis.
