Endress+Hauser RIA14 - 12 Technical data; 12.1 Input; 12.1.1 Measured variable; 12.1.2 Measuring range

Technical data RIA14
26 Endress+Hauser
12 Technical data
12.1 Input
12.1.1 Measured variable
Current
12.1.2 Measuring range
4 to 20 mA Reverse polarity protection
12.1.3 Input signal
• Voltage drop < 4 V at 3 to 22 mA
• Max. voltage drop < 6 V at max. short-circuit current 200 mA
12.2 Output
12.2.1 Output signal
Digital limit switch
Passive, open collector:
I
max
200 mA
U
max
35 V
U
low/max
< 2 V at 200 mA
Max. reaction time to
limit value
250 ms
Temperature range –20 to +80 °C (–4 to +176 °F)
12.2.2 Signal on alarm
• No measured value visible in the LC display, no background illumination.
• Open collector inactive.
12.2.3 Transmission behavior
The indicator allows the HART® transmission protocol to pass unimpeded.