Operating Instructions

Table Of Contents
Note
When using HART communications, the minimum voltage with 220 Ohms (RL) is 16.3 V DC.
A.6.3 Curve 2 (Flameproof, Increased Safety, Explosion-proof)
Loop Voltage versus Loop Resistance
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Note
When using HART communications, the minimum voltage with 220 Ohms (RL) is 20.94 V DC.
A.7 Startup behavior
The device draws less than 3.6 mA at startup.
Time to first measurement is less than 50 seconds.
Appendix A: Technical reference
A.7 Startup behavior
SITRANS LR250 with mA/HART
246 Operating Instructions, 10/2019, A5E32220602-AG