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Overview of Intelligent Guide-Rail Type Temperature Transmitters: This product utilizes advanced digital technology, offering a range of sophisticated features that traditional analog instruments do not possess. It performs excellently in suppressing high and low frequency interference signals, allowing it to be used reliably even in high-power frequency conversion control systems. The use of digital technology eliminates the problem of poor linearity associated with traditional temperature transmitters; it features digital calibration, the absence of zero and full-scale potentiometers, automatic dynamic zero calibration, and automatic compensation for temperature drift. Moreover, it meets the electromagnetic interference resistance requirements specified in Category 4 (harsh industrial environments) as defined by IEC61000-4-4:1995. The application of these various technologies ensures the product’s stability and reliability. Technical specifications: Type of input signal – Thermocouples: K, E, S, B, J, R, N, T; Thermal resistors: Pt100, Cu100, Cu50, BAI, BA2. System transmission accuracy: ±0.2%*F.S. Accuracy of cold junction temperature compensation: ±1°C (with a preheating time of 10 minutes). Allowable lead resistance when measuring thermal resistors: ≤30Ω. Temperature drift: ±0.01%*F.S./°C (100 ppm). Allowed external load impedance for current output: 0–500Ω for 4–20MA output, and 0–1.1KΩ for 0–10MA output. Insulation strength (between input/output and current): Not less than 2000V. DC: not less than 1500V. AC insulation resistance (between power supply/input/output): not less than 100MΩ (for one minute). Allowable atmospheric pressure during operation: 80–106 KPa. Permissible ambient temperature for continuous operation: -10 to +55°C. Power supply: AC: 95–295V; DC: 16–28V. Input power: 0.9–1.8W (depends on model). Dimensions: width × height × depth = 22.5 × 100 × 115 mm. Output states when the input signal is interrupted: There are three selectable output modes—follow mode, fixed-point output mode, and hold-on mode after interruption. Users must specify their preference at the time of ordering; otherwise, the product will be supplied in follow mode. http://www.jswand.com/products_t88.html http://www.jswand.com/ProductShow_293.html