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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

Compact Industrial Ethernet temperature, humidity, barometric pressure sensor

Also known as: industrial Ethernet, remote server environment monitoring, computer room monitor, data center thermometer, temperature humidity IP sensor, computer room temperature alert

.

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.

 

PRELIMINARY !

Easy creation of online data acquisition system from Ethernet thermometers by using new low cost software Comet Database Sensor Monitor - see also Accessories.


www online Ethernet thermometer

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
from online www internet sensor
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.

Online transmitter enables to monitor measured values. In case of exceeding of adjusted limits warning message can be sent to specified addresses.
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. Basic SMTP autentization is supported.
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, after firmware change, after alarm termination, after communication error with SOAP server.

Synchronizing of time and record to www table and measured values history is enabled by SNTP via Internet.

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:
- for more details see graphs		 ±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