DC 12V Digital Signal Isolator

Temperature Transmitter PT100 RTD , TC signal convert to 4-20mA Output

Input

Input signal: thermal resistance (RTD), thermocouple (TC)

Thermal resistance excitation current: 1mA

Thermocouple cold junction compensation: Compensation range: -25°C ~ +75°C (1°C per 20°C error)

Compensation method: internal compensation

Output

Output signal: 4-20mA (loop powered)

Output load resistance: RL ≤ 500Ω

Basic parameters

Power: DC 12-36V

Transmission accuracy: 0.1% F.S., 0.2% F.S.

Over-limit alarm: below the lower temperature limit, output 3.8mA, (4-20mA output); above the upper temperature limit, output 20.5mA

Break alarm: output 22mA or 3.8mA

Temperature drift: 0.005% F.S./°C (-20C ~ +55°C)

Response time: ≤1S (0-90%) (TYP)

Insulation strength: 1 500V AC / 1min (between input, output, and power)

Insulation resistance: ≥100MΩ (between input, output, and power)

Operating temperature range: -20~ +55°C

Electromagnetic compatibility: in accordance with GB/T 18268 (IEC61326-1)