AlarmsYes
Weight, approx.180 g
Power loss, typ.1.8 W
Rated value (DC)24 V
Diagnostics functionYes
Current consumption, typ.65 mA
IP degree of protectionIP20
Number of analog inputs4; Current or voltage differential inputs
Product type designationSM 1231, AI 4x16 bit
required front connectorYes
Cycle time (all channels) max.625 µs
— Input resistance (-5 V to +5 V)≥9 MOhm
from backplane bus 5 V DC, typ.80 mA
— Input resistance (-10 V to +10 V)≥9 MOhm
— Input resistance (-2.5 V to +2.5 V)≥9 MOhm
— global warming potential, (total) [CO2 eq]43.1 kg
Temperature error (relative to input range), (+/-)25 °C ±0.1% / ±0.3% total measurement range
— global warming potential, (during operation) [CO2 eq]36 kg
— global warming potential, (during production) [CO2 eq]7.62 kg
— Against chemically active substances acc. to EN 60654-4Yes; Class 3 (excluding trichlorethylene)
— global warming potential, (after end of life cycle) [CO2 eq]-0.544 kg
— to chemically active substances according to EN 60721-3-3Yes; Class 3C4 (RH < 75 %) incl. salt spray acc. to EN 60068-2-52 (severity degree 3); *
— to chemically active substances according to EN 60721-3-6Yes; Class 6C3 (RH < 75 %) incl. salt spray acc. to EN 60068-2-52 (severity degree 3); *
— to biologically active substances according to EN 60721-3-3Yes; Class 3B2 mold, fungus and dry rot spores (with the exception of fauna); Class 3B3 on request
— to biologically active substances according to EN 60721-3-6Yes; Class 6B2 mold and fungal spores (excluding fauna); Class 6B3 on request
— to mechanically active substances according to EN 60721-3-3Yes; Class 3S4 incl. sand, dust, *
— to mechanically active substances according to EN 60721-3-6Yes; Class 6S3 incl. sand, dust; *
— Resistant to commercially available coolants and lubricantsYes; Incl. diesel and oil droplets in the air
permissible input current for current input (destruction limit), max.40 mA
permissible input voltage for voltage input (destruction limit), max.35 V
— Environmental conditions for process, measuring and control systems acc. to ANSI/ISA-71.04Yes; Level GX group A/B (excluding trichlorethylene; harmful gas concentrations up to the limits of EN 60721-3-3 class 3C4 permissible); level LC3 (salt spray) and level LB3 (oil)
— Note regarding classification of environmental conditions acc. to EN 60721, EN 60654-4 and ANSI/ISA-71.04* The supplied plug covers must remain in place over the unused interfaces during operation!
