Temperature and process input
The field display 2800-2021 is designed specially for temperature sensors and for common process inputs. The display has large 20-mm-high red LED digits, the readability of which is about 10 metres.
Selection of the sensor type and display scaling is easy via front panel keys. As an option you can choose to have a galvanically isolated output, 2 to 4 alarm relays or the serial output RS-232/485. Alarm limits and hysteresis are freely selectable via front panel keys. The display can be damped by a digital filter if necessary.The number of decimals can be selected. Brightness of the digits is selectable as well.
There are two power supply alternatives: one for line voltage 85..240 VAC and the other 12..32 VDC or 24 VAC, galvanically isolated from input and output. The display provides a voltage supply of 24 V, max. 150 mA for sensors. Case protection rating is IP65. The displaycan be mounted onto a wall with or without the mountingbrackets at the corners (removable).
Load manuals (pdf)
Load datasheets (pdf)
Load technical drawings
mA, mV, Ohm, Pt100, Pt1000, Thermocouples, V
supply for transmitter
24 VDC, max. 150 mA
min and max memory, square root (mV and V inputs)
300, 600, 1200, 2400, 4800, 9600 and 19200
number of digits
alarm levels 1-4, min and max
230 VAC: 85...240 VAC, 24 VDC: 12...32 VDC
180 x 130 x 80 mm (LWD)
minimum ambient temperature
polycarbonate, light gray
maximum ambient temperature