Intelligent online Ethernet sensor is designed for measurement of temperature, barometric pressure, relative humidity, dew point temperature, absolute humidity, specific humidity, mixing ratio or specific enthalpy. Degrees Celsius and Fahrenheit are user selectable. Large dual line LCD for simultaneous display of temperature, pressure or relative humidity or other calculated humidity interpretation is an advantage. Display is possible to switch off. State-of-the-art capacitive polymer sensor ensures excellent long term stability, inertia against water and condensation. Online transmitter is designed for use in non-aggressive environment.
APPLICATIONS - online measuring of temperature, humidity, pressure at:
- industrial Ethernet
- rack monitoring
- server rooms
- building management
- building automation
- telecommunication devices
- warehouses
- glasshouses
- manufacturers
- museums, archives, galleries
- air-conditioned rooms
- weather stations
Example of an online monitoring system of Comet Ethernet sensors
| MODES OF COMMUNICATION | |
|---|---|
| Modbus TCP: | Modbus TCP protocol enables to read measured values, set alarm limits, adjust the probe. |
| Telnet: | Port 9999 enables to set alarm limits (lower, upper limits, hysteresis for measured values and time delay), e-mail addresses, SNMP addresses, probe description, refresh of www pages (10s to 65535s), set storing interval to history (10s to 65535s), enable each communication channel. Capacity of the history memory is 100 sets of temperature, humidity, pressure + computed values. Password protection of this port is enabled. Automatic IP address assignment from DHCP server is also enabled. |
| WWW pages: | User selectable design of www pages enabling to display curve of measurement history. User can design the look of www pages and temperature, humidity, pressure + computed values history.
Temperature, humidity, pressure in Roznov p.R., Czech Republic |
| SNMP: | It is possible to read actual values and alarm limits. In case of alarm creation warning message (trap) is sent to addresses defined by the user (maximum three addresses). |
| SOAP: | Online transmitter enables to send actual measured data in the format of SOAP message to selected web server in preset interval 10-65535 s. In case message is not received by the server till next message is sent, warning trap 1/2 is sent. |
There are the following options of alarm indication:
| ALARM INDICATION OPTIONS | |
|---|---|
| E-mail: | In case of alarm creation warning e-mail message is sent to addresses defined by the user (maximum three addresses) or via e-mail to SMS message. |
| SNMP: | In case of exceeding of adjusted temperature, humidity, pressure + computed value limits alarm is activated and warning trap is sent to user specified IP addresses (maximum 3 addresses). |
| WWW pages: | In case of exceeding of adjusted temperature, humidity, pressure + computed value limits active alarm is displayed on www page. |
| syslog: | Online transmitter enables to send text messages to selected syslog server after different events appear. E.g. after transmitter restart, alarm activation, communication error with SNTP, write to transmitter via mdb, sntp, after firmware change, after alarm termination, after communication error with SOAP server. |
| TECHNICAL PARAMETERS OF THE ONLINE SENSOR | |
|---|---|
| Operating relative humidity range: | 0 to 100% |
| Accuracy of relative humidity measurement: | ±2.5% relative humidity from 5 to 95% at 23°C |
| Temperature measurement accuracy: | ±0.6°C |
| Available temperature units: | degrees Celsius, Fahrenheit |
| Accuracy and range of dew point temperature: | ±1,8°C at ambient temperature T<25°C and RH>30%, range -60 to +80 °C |
| Accuracy and range of absolute humidity: | ±3g/m3 at ambient temperature T < 40°C range 0 to 400 g/m3 |
| Accuracy and range of specific humidity: | ±2.1g/kg at ambient temperature T < 35°C range 0 to 550 g/kg |
| Accuracy and range of mixing ratio: | ±2.2g/kg at ambient temperature T < 35°C range 0 to 995 g/kg |
| Accuracy and range of specific enthalpy: | ±4kJ/kg at ambient temperature T < 25°C range: 0 to 995 kJ/kg |
| Accuracy and range of barometric pressure: | ± 1.3hPa at 23°C range: 600 to 1100hPa |
| Supported pressure units: | hPa, kPa, mbar, mmHg, inHg, inH2O, PSI, oz/in^2 |
| Temperature operating range of case with electronics: | -30 to +80°C |
| Temperature operating range of LCD display: | readable to operating temperature +70°C, it is recommended to switch OFF the LCD over +70°C |
| Range of RH sensor temperature compensation: | -30 to +105°C |
| Filtering ability of sensor cover: | 0.025mm - filter with stainless steel mesh |
| Protection: | IP30 electronics, IP40 sensors |
| LAN connection: | RJ-45 connector |
| Power: |
9-30Vdc, maximum consumption 1W. For power over Ethernet any PoE splitter is necessary - e.g. DWL-P50 from D-Link company |
| Power connector: | co-axial, diameter 5.5 x 2.1 mm |
| Dimensions of the case (W x H x D): |
88 x 73 x 39,5 mm |
| Warranty: | two years |
* Relative humidity at temperature over +85°C is limited in accordance with the graph. Near plastic case with electronics and probe cable maximum temperature is +80°C.
Figure: Working range of Ethernet sensor
Included accessory:
Traceable calibration certificate from the manufacturer, instruction manual.
Calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.
Example of calibration certificate.
Free program TSensor for configuring of the transmitter is ready to download.
Free program SensorReader for monitoring and logging values from one transmitter to a PC disk file is ready to download. Program enables to alarm acoustically the PC user if adjusted alarm limits are exceeded. Recorded values in CSV format are easy to process in e.g. Excel. Program can be started several times on a computer at the same time to monitor values from several transmitters. Program can be started several times on a computer at the same time to monitor values from several transmitters.
For acquiring values from several transmitters, third party software is necessary to use. Tested functionality is with programs:
LabVIEW from National Instruments, by means of the free Modbus Library for LabVIEW.
For viewing of actual values and graphs from Tx5xx transmitters following example of application was created in LabVIEW 8.5 :
Tx5xx-Ethernet.vi
TIRS.NET - transmitters are also directly supported by program TIRS.NET from Coral s.r.o. company. Please download demo enabling full work with transmitters.
Tested functionality is also with programs
ControlWeb,
EasyView.
For record of values to graphs via web interface, project Cacti
www.cacti.net
is available.
| OPTIONAL ACCESSORY | ||
|---|---|---|
|
F5200 | grey sensor cover with filter from stainless steel mesh, filtering ability 0,025mm |
|
F5200B | black sensor cover with filter from stainless steel mesh, filtering ability 0,025mm |
|
F0000 | sintered bronze sensor cover. Filtering ability 0.025mm. |
|
MD036 | self adhesive Dual Lock for easy installation |
|
A1515 | adapter 100 to 240Vac/12Vdc |
|
DWLP50 |
DWL-P50 Power over Ethernet (PoE) adapter from company
D-Link.
The adapter is supposed to be connected to Ethernet switch supporting PoE. |
|
accessory for calibration and adjustment of humidity by the user | |
Software and firmware for transmitters
You can downlaod configuration programs and updated firmware from page Download - transmitters and transducers.
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