Descripción
Comet T3418
- Programmable temperature and humidity transmitter
- Equipped with temperature and relative humidity sensors
- Measured values are also converted to other humidity interpretation
- Dew point temperature
Interior Temperature, Humidity Transmitter with RS485 Output
Programmable temperature and humidity transmitter is equipped with temperature and relative humidity sensors. Measured values are also converted to other humidity interpretation – dew point temperature, absolute humidity, specific humidity, mixing ratio, or specific enthalpy. Degrees Celsius and Fahrenheit are user selectable. Transmitter contains a microprocessor-based control circuitry in a plastic case with connection terminals and sensors. Large dual line LCD for simultaneous display of T+RH or other humidity interpretation is an advantage. Display is possible to switch off. Computerized design ensures temperature compensation of the humidity sensor and fails indication. State-of-the-art capacitive polymer sensor ensures excellent calibration long-term stability, inertia against water, and condensation. Transmitters are designed for use in non-aggressive environment.
Applications – Measuring and Control of Air Humidity
- Warehouses
- Manufacturers
- Air-conditioned rooms
- Museums, archives, galleries
- Building HVAC Management/Automation
For exacting interiors in building energy management and HVAC systems. Are designed for easy installation on ordinary KU68 wiring boxes for household switches and sockets.
Measured pressure values are converted to RS485 serial output. Transmitter circuitry is galvanically isolated from power circuitry to prevent collision in RS485 network. Serial output RS485 – transmitter works with ModBus RTU communication protocol or with Advantech ADAM compatible protocol. Protocol is user selectable in special configuration mode by means of the PC. Serial link enables to read actual readings and modify transmitter configuration. Instrument works always in slave mode, i.e. responds only to master device query. Transmitters have the address space available from 1 to 255. Communication speed is 110 to 115200Bd.
Software
- Comet Database
- Complex solution for data acquisition and analysis. Easy to use and high flexible Database software for Comet Transmitters and Regulators.
- Sensor RS485/232 utility
- Allows communication of sensors with RS485/RS232 output and sending data to Comet Database.
- T-Sensor software
- Free configuration utility for Comet Transmitters and Regulators.
- SensorReader software
- Basic data acquisition utility for Comet Transmitters and Regulators. Software is free for download.
Manufacturer Specs
| Comet T3418 Specifications | |
| Technical Parameters | Value |
| Output | RS485 |
| Measured Value | Temperature + Relative Humidity |
| Construction Type | Interior |
| Design | Interior |
| Temperature Measuring Range | -10 to 50 °C |
| Relay Output | No |
| Two-State Input | No |
| Lcd Display | Yes |
| PoE | No |
| Relative humidity range | 5 to 95% RH |
| Accuracy of relative humidity measurement | ±2.5% relative humidity from 5 to 60% at 23°C .±3.0% relative humidity from 60 to 95% at 23°C |
| Accuracy of temperature output | ±0.5°C |
| Available temperature units | degrees Celsius, Fahrenheit |
| Accuracy and range of dew point temperature output – for more details see graphs | ±1.6°C at ambient temperature T<25°C and RH>30% range -60 to +80 °C |
| Accuracy and range of absolute humidity output | ±1.5g/m3 at ambient temperature T < 25°C range 0 to 400 g/m3 |
| Accuracy and range of specific humidity output | ±2g/kg at ambient temperature T < 35°C range 0 to 550 g/kg |
| Accuracy and range of mixing ratio output | ±2.2g/kg at ambient temperature T < 35°C range 0 to 995 g/kg |
| Accuracy and range of specific enthalpy output | ±3.5kJ/kg at ambient temperature T < 25°C range: 0 to 995 kJ/kg |
| Communication protocol | ModBus RTU and Advantech ADAM compatible protocol |
| Communication speed | 110 to 115200 Bd |
| IP protection | IP20 |
| Power | 9-30Vdc, current consumption approximately 0.5W |
| Dimensions | 88 x 106 x 33 mm (W x H x D) |
| Material of the case | ABS |
| Color | white |
| Weight | approximately 150g |
| Warranty | 3 years |
Tech Specs
Dataloggers / Data Acquisition/Dataloggers for Environmental Variables/Temperature Dataloggers Templ |
|
|---|---|
| Max Temperature | 50 C |
| Min Temperature | -10 C (14 F) |
| LCD Screen | No |
| Software Included | Yes |
Test Equipment General Attributes |
|
| Warranty | 3 YEARS |
| Product Weight | 0.33 LBS |
| Shipping Weight | 0.40 LBS |
| Country of Origin | Czech Republic |
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