PST-T7511

Programmable humidity transmitters - Ethernet

• Temperature

• Barometric pressure

• Relative humidity

• Dew point temperature

• Absolute humidity

• Specific humidity

• Mixing ratio

• Specific enthalpy

Modes of communication

Modbus

Modbus protocol enables to read measured values, set alarm limits, adjust the probe, read firmware version.

Telnet

Port 9999 enables to set alarm limits (lower and upper limits for T, RH, Tdp, hysteresis and time delay), e-mail addresses, SNMP addresses, probe description, refresh of www pages (10s to 65535s), select type of www pages, set storing interval to history (10s to 65535s), enable each communication channel. Capacity of the history memory is 100 sets of T+RH+Tdp 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 curves of measurement history. User can design the look of www pages and select values to display.

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).

E-mail

In case of alarm creation warning e-mail message is sent to addresses defined by the user (maximum three addresses).

Common Specifications

Operating relative humidity range

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

Accuracy and range of dew point temperature output

±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 output

±2g/kg at ambient temperature T < 35°C

range 0 to 550 g/kg

Accuracy and range of mixing ratio output

±2g/kg at ambient temperature T < 35°C

range 0 to 995 g/kg

Accuracy and range of specific enthalpy output

±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 humidity sensor temperature compensation

-30 to +105°C

Filtering ability of sensor cover

0.025mm

Protection of the case with electronics

IP30 electronics, IP40 sensors

LAN connection

RJ-45 connector

Power

9-30Vdc, maximum consumption 250mA

Power connector

co-axial, diameter 5.5 x 2.1 mm

Dimensions of the case (W x H x D)

88 x 98 x 37 mm

Warranty

Two years

Measured values

Temperature, humidity and barometric pressure

Maximum range of temperature measurement

-30 to +105°C* probe, cable + 80°C max, optionally with cable up to +105°C

Pressure: 600 to 1100hPa
accuracy: +/-1,3hPa at 23°C

Notes

Thermometer-hygrometer-barometer
RH+T probe with 1m cable. Cable lengths 2m or 4m available as options.
Reading and pressure outputs available in:
hPa, kPa, mbar, mmHg, inHg, inH2O, PSI, oz/in^2.

Manual in PDF   Appendix