Umidistatele sint proiectate pentru controlul bipozitional al incalzirii, ventilatiei, umidificarii si dezumidificarii.
Regulatoare de temperatura, umiditate si presiune cu iesiri:
– 4-20mA, RS-485
Umidistatele sint proiectate pentru controlul bipozitional al incalzirii, ventilatiei, umidificarii si dezumidificarii, etc. .
|PARAMETRI TEHNICI COMUNI|
|Maximum switching voltage, current, power of relay output:||50V, 2A, 60VA|
|Audible alarm:||from built-in beeper – switchable|
|Supported temperature units:||degrees Celsius, degrees Fahrenheit|
|Accuracy of temperature measurement:||0.4 C from -30 to +100 C, 0.4% from reading over +100 C|
|Range of relative humidity measurement:||0 to 100%|
|Accuracy of relative humidity measurement:||2.5% relative humidity from 5 to 95% at 23 C|
|Accuracy of temperature measurement:|| 0.4 C from -30 to +100 C
0.4% from reading over +100 C
|Accuracy and measuring range of dew-point temperature:|| 1,5 C at ambient temperature T 30%
range -60 to +80 C
|Accuracy and measuring range of absolute humidity:|| 3g/m3 at ambient temperature T < 40 C
range 0 to 400 g/m3
|Accuracy and measuring range of specific humidity:|| 2g/kg at ambient temperature T < 35 C
range 0 to 550 g/kg
|Accuracy and measuring range of mixing ratio:|| 2g/kg at ambient temperature T < 35 C
range 0 to 995 g/kg
|Accuracy and measuring range of specific enthalpy:|| 3kJ/kg at ambient temperature T < 25 C
range: 0 to 995 kJ/kg
|Operating temperature range of the case with electronics:||-30 to +80 C|
|Operating temperature range of LCD display:||readable up to operating temperature +70 C, it is recommended to switch off LCD over +70 C|
|Range of temperature compensation of RH sensor:||-30 to +125 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 from stainless steel mesh|
|Protection:||IP65 electronics with terminals,
IP40 humidity and temperature sensors
|Dimensions of the case:||135 x 136 x 45 mm (W x H x D)|
|Model||Valoare masurata||Gama maxima de masura||Lungimea sondei||Iesire||Altaiesire||Descriere|
|-30 to +80 C||75mm||2xRelay||–||Outdoor and indoor use.|
|-30 to +125 C*||150mm||2xRelay||–||Duct mount.|
|-30 to +105 C* probe incl. cable||probe cable 1,2,4m||2xRelay||–||T+RH probe with 1m cable. Cable lengths 2m or 4m available optionally.|
|-30 to +105 C* probe incl. cable||probe cable 1,2,4m||2xRelay||RS485||T+RH probe with 1m cable. Cable lengths 2m or 4m available optionally.|
|-30 to +105 C* probe incl. cable||probe cable 1,2,4m||2xRelay||RS485||T+RH probe with 1m cable. Cable lengths 2m or 4m available optionally. Pressure sensor is located in the control unit with display.
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: Humidistat working range
Serial output RS485 is galvanically isolated from other circuitry to prevent collisions on the RS485 bus. The 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 0 to 255. Communication speed is 110 to 115200Bd.
Free program SensorReader for logging values from one transmitter via RS485 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.
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.
For acquiring values from several transmitters connected to RS485 bus, third party software is necessary to use. Tested functionality is with programs:
|HUMIDISTAT OPTIONAL ACCESSORY|
|SP003||cable for H3020, H3021, H3023 humidity transmitter adjustment via USB port|
|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|
|SP006||Tool for easy wire connection to terminals|
|F8000||Solar radiation shield|
|accessory for calibration and adjustment of humidity by the user|
Vizitati de asemenea:
|Senzori Ethernet de temperatura, umiditate, presiune||Senzori low cost de temperatura, umiditate, presiune|
Transmitterii cu iesire 4-20 mA sau RS-485 sint direct compatibili cu sistemul Comet de achiziţie date MS cu şasesprezece canale.