General information | | |
Product type designation | SM 1231 TC 8x16bit | SM 1231 TC 4x16 bit |
Supply voltage | | |
Rated value (DC) | | |
| Yes | Yes |
Input current | | |
Current consumption, typ. | 40 mA | 40 mA |
from backplane bus 5 V DC, typ. | 80 mA | 80 mA |
Power loss | | |
Power loss, typ. | 1.5 W | 1.5 W |
Analog inputs | | |
Number of analog inputs | 4; Thermocouples | 4; Thermocouples |
permissible input voltage for current input (destruction limit), max. | ± 35 V | ± 35 V |
permissible input voltage for voltage input (destruction limit), max. | +-35 V | +-35 V |
Technical unit for temperature measurement adjustable | Degrees Celsius/degrees Fahrenheit | Degrees Celsius/degrees Fahrenheit |
Input ranges | | |
| No | No |
| No | No |
| Yes; J, K, T, E, R & S, B, N, C, TXK/XK(L); voltage range: ±80 mV | Yes; J, K, T, E, R, S, N, C, TXK/XK(L); voltage range: +/-80 mV |
| No | No |
| No | No |
Input ranges (rated values), voltages | | |
| Yes | Yes |
Input ranges (rated values), thermocouples | | |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
| Yes | Yes |
Thermocouple (TC) | | |
Temperature compensation | | |
| No | No |
Analog value generation for the inputs | | |
Measurement principle | integrating | integrating |
Integration and conversion time/resolution per channel | | |
| 15 bit; + sign | 15 bit; + sign |
| No | No |
| 85 dB at 50 / 60 / 400 Hz | 85 dB at 50 / 60 / 400 Hz |
Smoothing of measured values | | |
| Yes | Yes |
Errors/accuracies | | |
Temperature error (relative to input range), (+/-) | 25 °C ±0.1%, to 55 °C ±0.2% total measurement range | 25 °C ±0.1%, to 55 °C ±0.2% total measurement range |
Repeat accuracy in steady state at 25 °C (relative to output range), (+/-) | 0.5 % | 0.5 % |
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency | | |
| 120 dB | 120 dB |
Interrupts/diagnostics/status information | | |
Alarms | Yes | Yes |
Diagnostic functions | Yes; Can be read out | Yes; Can be read out |
Alarms | | |
| Yes | Yes |
Diagnostic messages | | |
| Yes | Yes |
| Yes | Yes |
Diagnostics indication LED | | |
| Yes | Yes |
| Yes | Yes |
Degree and class of protection | | |
Degree of protection acc. to EN 60529 | | |
| Yes | Yes |
Standards, approvals, certificates | | |
CE mark | Yes | Yes |
Ambient conditions | | |
Free fall | | |
| 0.3 m; five times, in product package | 0.3 m; five times, in product package |
Ambient temperature during operation | | |
| -20 °C; = Tmin; Startup @ 0 °C | -20 °C; = Tmin; Startup @ 0 °C |
| 60 °C; = Tmax | 60 °C; = Tmax |
Extended ambient conditions | | |
| Tmin ... Tmax at 1080 hPa ... 795 hPa (-1000 m ... +2000 m) // Tmin ... (Tmax - 10K) at 795 hPa ... 658 hPa (+2000 m ... +3500 m) // Tmin ... (Tmax - 20K) at 658 hPa ... 540 hPa (+3500 m ... +5000 m) | Tmin ... Tmax at 1080 hPa ... 795 hPa (-1000 m ... +2000 m) // Tmin ... (Tmax - 10K) at 795 hPa ... 658 hPa (+2000 m ... +3500 m) // Tmin ... (Tmax - 20K) at 658 hPa ... 540 hPa (+3500 m ... +5000 m) |
Relative humidity | | |
| 100 %; RH incl. condensation/frost (no commissioning under condensation conditions) | 100 %; RH incl. condensation/frost (no commissioning under condensation conditions) |
Resistance | | |
| Yes; Class 3B2 mold, fungus and dry rot spores (with the exception of fauna). The supplied connector covers must remain on the unused interfaces during operation! | Yes; Class 3B2 mold, fungus and dry rot spores (with the exception of fauna). The supplied connector covers must remain on the unused interfaces during operation! |
| Yes; Class 3C4 (RH < 75%) incl. salt spray according to EN 60068-2-52 (degree of severity 3). The supplied connector covers must remain on the unused interfaces during operation! | Yes; Class 3C4 (RH < 75%) incl. salt spray according to EN 60068-2-52 (degree of severity 3). The supplied connector covers must remain on the unused interfaces during operation! |
| Yes; Class 3S4 incl. sand, dust. The supplied connector covers must remain on the unused interfaces during operation! | Yes; Class 3S4 incl. sand, dust. The supplied connector covers must remain on the unused interfaces during operation! |
Connection method | | |
required front connector | Yes | Yes |
Mechanics/material | | |
Enclosure material (front) | | |
| Yes | Yes |
Dimensions | | |
Width | 45 mm | 45 mm |
Height | 100 mm | 100 mm |
Depth | 75 mm | 75 mm |
Weights | | |
Weight, approx. | 220 g | 180 g |