Specifications Rated input signal range: 0 … 10 V DC Input impedance: ≥ 300 kΩ (high impedance, no load effect on voltage transmitters) Overvoltage withstand: Max 15 V DC continuous input Channel isolation: Galvanically isolated between CH1 and CH2 Output Electrical Specifications (Per Channel, 2 channels total) Rated output signal range: 4 … 20 mA DC (linear 1:1 conversion with input 0–10V) Max allowable load resistance: ≤ 600 Ω at 24V auxiliary supply Loop power requirement: Output loop minimum voltage 12 V DC ~ max 30 V DC Output short-circuit protection: Built-in self-recovery short-circuit protection HART compatibility: Pass HART 0.5–2.5 kHz communication signal without attenuation Auxiliary Power Supply Nominal supply voltage: 24 V DC Operating supply range: 20 … 30 V DC Typical power consumption: ≤ 2 W at full dual-channel load Reverse polarity protection: Integrated reverse blocking diode for supply terminals Conversion Accuracy & Dynamic Performance Basic accuracy: < 0.1 % of full scale end value Linearity error: ≤ ±0.05 % FS Temperature coefficient: ≤ 100 ppm/K Step response time (10–90% signal): ≤ 2 ms Long-term drift: ≤ 0.1 % FS / 10,000 operating hours Galvanic Isolation & Dielectric Strength Isolation architecture: 3-way reinforced isolation (Input / Output / Power) Dielectric test voltage (any two isolated circuits): 2000 V AC / 1 min, 50 Hz Impulse surge withstand voltage (1.2/50 µs): 4 kV Rated insulation voltage: 300 V Overvoltage category: III; Pollution degree: 2 Clearance/creepage distance between isolated circuits ≥ 5.5 mm Connection Mechanical Specs Terminal type: Screw clamp terminals Wire cross-section range: Solid wire 0.5–2.5 mm²; Multi-strand 0.5–1.5 mm² (AWG 26–12) Recommended tightening torque: 0.4 … 0.6 N·m Recommended wire stripping length: 7–8 mm Mechanical & Dimension Specs Mounting: Standard TS35 top hat DIN rail Overall dimensions (W × H × D): 12.5 mm × 117.2 mm × 114 mm Net weight: ~85 g Housing material: Flame-retardant black PA66 plastic Protection class: IP20 (indoor control cabinet installation only) Environmental Conditions Operating ambient temperature: -20 °C ~ +60 °C Storage & transport temperature: -40 °C ~ +70 °C Relative humidity: 5% … 93% RH, non-condensing Max operating altitude: ≤ 2000 m above sea level Vibration resistance: 10–55 Hz, 1.5 mm amplitude per IEC 60068-2-6 Indicators & Compliance Certifications LED indicators: 1 green power supply LED; 2 independent green channel signal LEDs Approvals: cULus Listed, CE marking, RoHS 2011/65/EU, REACH SVHC compliant Compliance standards: EN 61010-1, EN 61326-1 (EMC), EN 50178