Product manual
SPECIFICATION
product name： | Communication type temperature and humidity transmitter |
Model： | BTH-2S |
version： | V1.0 |
Creator： | He Genwen |
reviewed by： | Yuan Chao |
1、 Overview
BTH-2S is an ultra-low power series temperature and humidity transmitter with an average power consumption of less than 0.02W, which is less than one tenth of that of similar products. Ultra low power consumption and unique air duct design completely solve the problem of circuit board temperature rise, with more accurate measurement and faster response characteristics. The use of second-generation sensor probes imported from Switzerland ensures excellent measurement performance of the product. Powerful functionality and stable performance, optional one or two switch outputs, unique control logic, can achieve multiple functional control and remote control, such as high temperature alarm, low temperature alarm, high humidity alarm, low humidity alarm, heating, cooling, humidification, dehumidification, etc.
2、 Application scope
Widely used in communication rooms, intelligent buildings, factory workshops, warehouses, drug depots, libraries, museums, laboratories, offices, ventilation ducts, greenhouses and other places.
3、 Product features
Ultra low power consumption and unique air duct design prevent circuit temperature rise;
More accurate measurement and faster response;
LCD large screen display design, generous and beautiful;
Second-generation high-precision probes imported from Switzerland;
Password protection function to prevent unauthorized operations by non staff members;
Celsius and Fahrenheit can be switched, globally applicable;
Equipped with dew point analysis function;
Wall mounted ceiling structure design, easy to install;
Super stability and anti-interference ability;
High measurement accuracy, wide range, and good consistency;
The maximum communication distance can reach 1200 meters;
The product has strong protective performance and first-class lightning protection.
4、 Main technical parameters
rated voltage | DC9V~DC26V (recommended 12V) |
measuring range | temperature：-20℃~80℃ humidity：0~100%rh |
measurement accuracy | temperature： ±0.3℃ resolution ratio 0.1℃ humidity： ±3%rh resolution ratio 0.1 rh |
output interface | RS485 |
Communication protocol | MODBUS RTU |
mail address | 1-247, |
BAUD | 1200 bit/s,2400 bit/s, 4800 bit/s, 9600 bit/s, 19200 bit/s |
Average Power | ＜0.02W，＜2mA |
Switching Output | Optional 1-2 switch outputs, default none |
data record | Optional temperature and humidity data recording and event recording, default to none |
Effective Working Area | 10-20m2/piece |
Installation method | Indoor wall installation, ceiling mounted installation |
Product size | 90*95*29mm |
5、Key and setting operation instructions
On the initial page, pressing the "up" and "down" keys can switch the display: Td (dew point), ID (address), Baud (baud rate), DO1 (first switch status), DO2 (second switch status), Date (date, month, day), and time (hour: minute).
Setting operation: On the initial page, press the "Settings" prompt to enter the password. The initial password is "0000". At this time, the flashing bit can be adjusted by pressing the "+" and "-" keys, and can be shifted by pressing the "Settings" key. After entering the correct password, press the "Confirm" key to enter the settings. The parameter setting page consists of 22 pages, and pressing the "Up" and "Down" keys can select the item to be set, Press the "Confirm" button to set the parameters of the current project. After adjusting the parameters, press the "Confirm" button to save the settings, and then press the "Settings" button to return to the initial page. Keys and Settings
The page introduction is shown in the figure on the right:
Set project and corresponding page numbers
page number | Set Project | Explanation | page number | Set Project | Explanation |
P:01 | mail address | 1-247 | P:12 | Low temperature lower limit value | Low temperature alarm value or under temperature Limit value
|
P:02 | BAUD | 1200-19200 | P:13 | High humidity upper limit value | High humidity alarm value or humidity upper limit value |
P:03 | Parity | n81、o81、e81 | P:14 | Low temperature lower limit value | Low humidity alarm value or lower humidity limit value |
P:04 | temperature unit | C：centigrade； F：Fahrenheit degree | P:15 | Temperature buffer value | Default 0.1 ℃, anti relay shake activated |
P:05 | DO1 use to | Ctrl：control model Alar：Alarm mode | P:16 | Humidity buffer value | Default 1 rh%, anti relay shake activation |
P:06 | DO2 use to | P:17 | Date setting | Year, month, day |
P:07 | DO1 Function enabled | 0 To deactivate 1 Enable 
| P:18 | time setting | Hours, minutes, seconds |
P:08 | DO2 Function enabled | P:19 | Password settings | 0000-9999 |
P:09 | DO1 state | OFF is normally open, ON is normally closed | P:20 | Record cycle settings | Unit is in minutes, 1-180 can be set as |
P:10 | DO2 state | P:21 | Zigbee network ID | Zigbee wireless networking parameters |
P:11 | High temperature upper limit value | High temperature alarm value or upper temperature limit value | P:22 | Zigbee Network frequency band |
6、Instruction of wiring
7、quality assurance
The warranty period is 12 months. During the quality assurance period, free maintenance services will be provided for the product based on normal use and non-human damage.
8、note
Do not install directly on heat sources, cold sources, or in direct sunlight;
Prohibit prolonged exposure to steam, water mist, water curtains, or condensation environments;
In dust or other polluted environments, products must be regularly cleaned.
