Siemens S7-1200 SM1231 Analog AI 8xTC x 16 bits

Specifications: Electrical Characteristics: Supply Voltage: 24 V DC. Backplane Bus Current: 80 mA (typical). Power Loss: 1.5 W. Destruction Limit: ±35 V input protection. Analog Inputs: Channels: 8 thermocouple inputs. Supported TC Types: J, K, T, E, R, S, B, N, C. TXK/XK(L) (GOST standard). Voltage Range: ±80 mV. Input Resistance: ≥1 MΩ. Resolution: 15-bit + sign. Measurement Principle: Integrating. Temperature Units: Selectable (°C or °F). Smoothing: Configurable (None, Low, Medium, High). Accuracy & Diagnostics: Basic Error (25 °C): ±0.1%. Extended Error (up to 55 °C): ±0.2%. Repeat Accuracy: ±0.5%. Interference Suppression: 85 dB at 50/60/400 Hz. 120 dB common-mode rejection. Diagnostics: Wire break detection. Supply voltage monitoring. Diagnostic alarms. LEDs for input status and maintenance. Mechanical & Environmental: Dimensions (W x H x D): 45 x 100 x 75 mm. Mounting: DIN rail. Protection Rating: IP20. Operating Temp: –20 to +60 °C. Storage Temp: –40 to +70 °C. Humidity: Up to 95% (non-condensing). Weight: ~220 g. Compliance & Approvals: CE, UL, CSA, FM, RCM, KC. Marine: DNV, LRS, BV, RMRS, RINA, CCS. ATEX, IECEx. Environmental Product Declaration (EPD). Global Warming Potential: 43.1 kg CO₂ eq.