Delta OHM HD788TR1-I - Opto Insulated Temperature Transmitter

Technical specifications @ 25°C and 24Vdc All models INPUT Sensor Pt100 (100Ω at 0 °C) Connection 3 (or 2) wires Linearization EN 60751, IEC 751 BS 1904 (α=0.00385) Current into sensor <1 mA Measuring range -200…+650 °C Default range 0…100 °C Minimum measuring amplitude 25 °C Influence of the connecting leads Negligible with coupled lead Conversion speed 2 measurements per second Accuracy ±0.1°C ±0.1% of the reading (-100…+500 °C) ±0.2°C ±0.02% of the reading (-200…+650 °C) Sensibility to variations of env. temperature 0.01 °C/°C Electronics operating temperature -20…70 °C Storage temperature -40…+80 °C OUTPUT Output 4…20 mA (or 20…4 mA) 22 mA in case of incorrect programming or temperature out of range (note 1). Resolution Analog ouput 4 µA For HD988TR2 - Display: 0.1°C up to 200 °C; 1 °C over 200°C Power supply voltage 7…30 Vdc (protection against inversions of polarity) Sensibility to variations of the feeding voltage Vdc 0.4 µA/V Load resistance RLMax = Vdc-7 0.022 => RLMax = 770 Ω @ Vdc = 24 Vdc Red led It switches on while programming and when the measured temperature is out of the set range Input-Output isolation 500 Vdc Only for models HD788TR1-I and HD988TR1-I