RHE28 Installation & Startup Guide – Doc. No. 8.2.1.07 – Ver. 1.31
14 / 43
Figure 10: Analog Outputs
For a floating output connect terminal 51 (53 for output 2) to the positive supply rail and terminal
52 (54 for output 2) to the input of local display/PLC/supervisory control system etc.
For an active output connect terminal 51 (53 for output 2) to terminal 50 and connect the load
between terminal 52 (54 for output 2) and terminal 57.
A protective resistor can be connected in series with the transmitter output and the load. Please
note, with a 24Vdc supply, the maximum total load resistance is 600 Ω.
For analog outputs with HART communication, a load resistance of 250 Ω is recommended.
3.2.3.3
Digital Inputs
RHE28 transmitters can be equipped with up to two IEC60946 compliant digital inputs.
NOTE: Unless advised in advance of delivery, all digital inputs are configured by default for
active high operation at the factory. Units with active low operational inputs are available upon
request.
Digital inputs have an input resistance of 24 kΩ and when operated, will draw approx. 1mA when
connected to a 24Vdc supply.
Figure 11: Digital Inputs
Summary of Contents for RHE28
Page 27: ...RHE28 Installation Startup Guide Doc No 8 2 1 07 Ver 1 31 27 43 7 Ordering Code ...
Page 39: ...Appendix C CE Certificates 39 43 Appendix C CE Certificates ...
Page 40: ...Appendix C CE Certificates 40 43 ...
Page 41: ...Appendix C CE Certificates 41 43 ...
