- temperature
- barometric pressure
- relative humidity
- dew point temperature
- absolute humidity
- specific humidity
- mixing ratio
- specific enthalpy
- three binary inputs
Transmitter is equipped with three binary inputs for detection of two-state events - e.g. water, smoke, glass break detection, door contact. Fully equipped transmitter contains temperature, humidity, pressure sensors. Measured temperature and relative humidity is recalculated to other humidity interpretations - dew point temperature, absolute humidity, specific humidity, mixing ratio or specific enthalpy.
Reading and pressure output available in these units: hPa, kPa, mbar, mmHg, inHg, inH2O, PSI, oz/in2. 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. Parameters are easy adjustable from transmitter keyboard or from the computer.
State-of-the-art capacitive polymer sensor ensures excellent calibration long term stability, inertia against water and condensation. Transmitter is designed for use in non-aggressive environment.
Transmitter is equipped with two relay outputs for alarm indication or control of external devices. Each relay can be assigned to any measured or computed value.
APPLICATIONS - online monitoring of temperature, humidity, pressure and three binary signals at:
- server and computer rooms
- rack monitoring
- industrial Ethernet
- building management and automation
- telecommunication devices
- warehouses, glasshouses, manufacturers
- museums, archives, galleries
- air-conditioned rooms
- weather stations
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 or binary input states 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 or binary input states 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 | |
|---|---|
| Maximum switching voltage, current, power of output relay: | 220Vdc, 125Vac, 2A, 60 W, 62.5 VA |
| 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: | ±0.4°C |
| Available temperature units: | degrees Celsius, Fahrenheit |
| Accuracy and range of dew point temperature: | ±1,5°C at ambient temperature T<25°C and RH>30% range -60 to +80 °C |
| Accuracy and range of absolute humidity output: | ±3g/m3 at ambient temperature T < 40°C range 0 to 400 g/m3 |
| Accuracy and range of specific humidity: | ±2g/kg at ambient temperature T < 35°C range 0 to 550 g/kg |
| Accuracy and range of mixing ratio: | ±2g/kg at ambient temperature T < 35°C range 0 to 995 g/kg |
| Accuracy and range of specific enthalpy: | ±3kJ/kg at ambient temperature T < 25°C range: 0 to 995 kJ/kg |
| Accuracy and range of barometric pressure output: | ± 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 |
| Signal for binary inputs: |
from voltage-less contact, open collector or two-state voltage signal. Inputs are not galvanically isolated. |
| Minimum pulse length at binary input: | 500 ms (shorter pulse may not be detected) |
| Voltage at open contact: | 3.3 V |
| Low voltage level: | 0 to +0.2 V |
| High voltage level: | +3.0 to +30V |
| Filtering ability of sensor cover: | 0.025mm - filter with stainless steel mesh |
| Protection: | IP30 electronics, IP40 sensors |
| LAN connection: | RJ-45 connector |
| Power: |
9 - 30 Vdc, maximum consumption 250mA. 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: | 135 x 136 x 45 mm (W x H x D) |
| Warranty: | two years |
| Model | Measured value | Maximum measuring ranges | Description |
|---|---|---|---|
H4531
|
temperature+ 3 bin. inputs |
-200 to +600°C |
Temperature transducer for external probe with Pt1000 sensor (not included), accuracy of the input without probe +/-0,2°C |
H3531
|
temperature+ humidity+ 3 bin. inputs |
-30 to +105°C* including probe cable
relative humidity 0 to 100% |
Thermometer-hygrometer. T+RH probe with 1m cable. Cable lengths 2m or 4m available optionally. Humidity values available also as dew-point temperature, absolute humidity, specific humidity, mixing ratio, specific enthalpy. |
H7531
|
temperature+ humidity+ bar.pressure+ 3 bin. inputs |
-30 to +80°C
relative humidity 0 to 100% Barometric pressure: 600 to 1100hPa accuracy: +/-1,3hPa at 23°C |
Thermometer-hygrometer-barometer T+RH probe with 1m cable. Cable lengths 2m or 4m available optionally. Pressure sensor is located in the control unit with display. Humidity values available also as dew-point temperature, absolute humidity, specific humidity, mixing ratio, specific enthalpy. Reading and pressure output in these units: hPa, kPa, mbar, mmHg, inHg, inH2O, PSI, oz/in^2. Barometer enables to measure sea level pressure by setting of correction to altitude above sea level. |
* 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 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.
For acquiring values from several transmitters, third party software is necessary to use. Tested functionality is with programs:
LabVIEW from National Instruments.
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. |
|
PP4 | flat plastic circular flange for duct mounting |
|
PP90 | right-angled stain-less steel flange for wall mounting |
|
SP004 | plastic gland for direct mounting of the humidity probe to a 29 mm diameter hole |
|
MD036 | self adhesive Dual Lock for easy installation |
|
F8000 | Solar radiation shield |
|
A1515 | adapter 230V-50Hz/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.
 | Temperature, humidity, pressure regulators with 4-20mA and RS485 output |  | Low cost Ethernet sensors |