PST-C309 Handheld 4-channel data logging thermometer
PST-C350 InfraRed Thermometer
T3110 Programmable humidity transmitters - 4-20mA
pH/mV/conductivity/TDS/Salt/ Temp meter -Pen type
Thermal Imager Camera, Multi Purpose- PST-IRI4010 - (Standard)
THERMALERT-RH Wireless Humidity and Temperature Monitoring and Alarm System
Madgetech PST-HiTemp140-PT Data Logger
Please note that all prices on this website exclude G.S.T
PST-T7311
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Programmable humidity transmitters - Serial interface
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Measured temperature, barometric pressure, relative humidity, dew point temperature, absolute humidity, specific humidity, mixing ratio or specific enthalpy is converted to digital serial output with the RS485 or RS232 link parameters. Large dual line LCD for simultaneous display of temperature and relative humidity, or other calculated humidity interpretation is an advantage. Computerized design ensures maximum long term stability and fail indication. The transmitter works with ModBus 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. The T4311 RS232 transmitter can be powered directly from the PC port or from external ac/dc adapter.
State-of-the-art capacitive polymer humidity sensor excels in mechanical stress, temperature shock, dew resistance as well as in large linearity range and low hysteresis. Transmitters are designed for use in non-aggressive environment.
APPLICATIONS - measuring and control of air humidity at:
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Warehouses
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Glasshouses
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Manufacturers
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Museums, archives, galleries
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Air-conditioned rooms
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Weather stations
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Common Specifications | |
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Supported temperature units |
Celsius and Fahrenheit |
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Temperature sensor |
RTD Pt1000-3850ppm/°C |
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Measuring temperature range of the case with electronics |
-30 to +70°C, with switched OFF LCD display up to +80°C |
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Accuracy |
±0.4°C |
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Measuring relative humidity range |
0 to 100% |
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Accuracy |
±2.5% RH from 5 to 95% at 23°C |
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Accuracy and range of dew point temperature output |
±1,5°C at ambient temperature T<25°C and RH>30% |
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Accuracy and range of absolute humidity output |
±3g/m3 at ambient temperature T < 40°C |
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Accuracy and range of specific humidity output |
±2g/kg at ambient temperature T < 35°C |
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Accuracy and range of mixing ratio output |
±2g/kg at ambient temperature T < 35°C |
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Accuracy and range of specific enthalpy output |
±3kJ/kg at ambient temperature T < 25°C |
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Accuracy and range of barometric pressure output |
±1.3hPa at 23°C |
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Supported pressure units |
hPa, kPa, mbar, mmHg, inHg, inH2O, PSI, oz/in^2 |
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Temperature compensation of the humidity sensor |
-30 to +125°C |
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Power |
9 to 30 V DC, power consumption approximately 0.5W |
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Protection - temperature and humidity transmitters |
IP65 electronics with terminals, |
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Protection - transmitters measuring pressure |
IP54 electronics with terminals, |
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Filtering ability of sensor cover |
0.025mm |
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Communication protocol |
ModBus and Advantech ADAM compatible protocol Description of communication protocols in PDF format Description of calibration and adjustment procedure |
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Communication speed |
110 to 115200 Baud |
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Warranty |
Two years |
* Maximum temperature only at the measuring end with sensors. Relative humidity at temperature over +85°C is limited in accordance with the graph. Near plastic case with electronics maximum temperature is +80°C.
PST-T7311
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Measured values |
RH, temp and barometric pressure |
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Description |
Thermometer-hygrometer-barometer with RS232 output
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Working range of humidity probe
Inclusions
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Calibration certificate from the manufacturer
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Instruction manual
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Transmitters Tx31x with the RS232 output have included 1.6 meter cable for communication with RS232 computer port.
The Tx31x RS232 transmitters can be powered directly from the COM port of the PC by means of the included communication cable or from external ac/dc adapter.
Datasheet