PR electronics 2284 - Electrical Specifications

2284V104-UK 7
Standard current output (pin 3) 0/4...20 mA, and 0/1...5 mA acc. to the
programming schedule with the possibility of signal reversal.
Current limit: 23...28 mA.
Standard voltage output (pin 2) is achieved by short-circuiting pins 2 and 3.
The voltage signal is available between pins 2 and 1.
For voltage signals in the range 0...1 VDC, a 50 Ω shunt (DP 2-1) is applied; in the
range 0...10 VDC, a 500 Ω shunt (DP 2-2) is applied.
Using both signals simultaneously, the mA-loop to ground must go through the
internal shunt.
The 2284 is available with a buffered voltage output, 0...20 V 10 mA. The current
output cannot be used simultaneously. In applications where the output must sink
current, the following min. voltages on the output can be achieved:
At 100 µA; 10 mV, and at 1 mA; 90 mV.
Fine adjustment of 0 and 100% values for special ranges is possible at the front
±2.5%, but please note that the basic calibration is thereby lost.
Electrical specifications
Specifications range:
-20°C to +60°C
Common specifications:
Supply voltage, DC .................................................. 19.2...28.8 VDC
Universal supply, voltage ..................................... 21,6...253 VAC, 50...60 Hz
19,2...300 VDC
Max. consumption 2284--D, (24 VDC) ............ ≤ 2.4 W
Max. consumption 2284--P (uni. sup.) ............ ≤ 2.5 W
Isolation, test / operation ..................................... 3.75 kVAC / 250 VAC
Signal / noise ratio .................................................. Min. 60 dB
Response time (0...90%) ....................................... < 25 ms
Temperature coefficient ........................................ < ±0,01% of span / °C
Linearity error ........................................................... < ±0,1% of span
Effect of supply voltage change ....................... < ±0.005% of span / V
2-wire transmitter supply (pin 7...5) ................ 19...28 VDC / 20...0 mA
Reference voltage ................................................... 2.5 VDC ±0.5%, 15 mA
EMC immunity influence ...................................... < ±0,5% of span