CẢM BIẾN NHIỆT ĐỘ APLISENS MODEL AT-2

Application and function

The temperature economical transmitter AT-2 is applicable to converting resistance of temperature sensor to standard current signal 4…20mA. Most of parameters such as: sensor type, input signal, measuring range may be adapted by user for specific requirements of his measuring system.

Application and function

User define type of sensor, measuring range in the order, the transmitter are programmed with required parameters and their values are printed on serial number label.

Technical data

Input signal Pt 100

Limit process 20Ώ

Min. measuring range 25C°

Output signal 4 – 20 mA

Power supply 7,5…30V DC

Load resistance Ro[kΏ]<(U z – 7,5V)/22mA

Alarm signal 22mA or 3,6mA

Accuracy for ΔR>20Ώ } 0,1%

Thermal error } 0,1% / 10°C

Ambient temperature -40…+85°C

Error due to supply voltage changes }0,01%/V

Note: for spans smaller than 75°C, the only permissible start values are: -40°C, -20°C, 0°C, +20°C and +40°C.