Indoor climate and atmospheric pressure monitoring becomes simpler when values are visible locally and available to the control system at the same time. HD2001.1 measures temperature, relative humidity, dew point and barometric pressure, with a large dual-line display showing the selected main variable and temperature together.
Three configurable analog outputs let the transmitter integrate with indicators, regulators and automation systems. The output type is selected on the board as 4...20 mA, 0...20 mA, 0...10 Vdc or 2...10 Vdc, with fixed scaling to -20...+80 °C, 0...100 %RH and 600...1100 mbar.
For networked monitoring, the instrument provides RS232C and multidrop RS485 serial communication up to 9600 baud. A configurable low-activated open collector alarm output supports limit monitoring, while the indoor housing with ingress protection (IP) IP67 electronics helps protect the measurement electronics in fixed installations.
The transmitter measures temperature, relative humidity, dew point and barometric pressure. It also calculates related humidity variables shown through the unit function.
Analog outputs are associated with temperature, relative humidity and pressure, with output limits matched to the corresponding input ranges.
RS232C is used for single instruments up to 15 m from the PC. RS485 supports networks up to 1200 m with shielded twisted pair cabling.
The keyboard allows selection of the main displayed variable, unit changes and maximum, minimum and average value display.
Lower and upper alarm limits can be set for temperature, relative humidity, dew point and barometric pressure, plus pressure drop over the last 6 hours.
Relative humidity calibration can be performed with 75 %RH and 33 %RH saturated salt solutions, following the built-in calibration procedure.
