The isolated safety grid receives the input of thermal resistance, thermocouple and mv signal from the danger zone, and the output signal is converted into 4~20mA according to the configuration range and transmitted to the safety side. It has the function of cold end automatic compensation, and the user can customize any signal type and range that can be supported within the maximum range.
Basic parameters | |
Power Supply | 20～35V DC |
Power protection | Power backconnect protection |
Consumption current (24V power supply, 20mA output) | ≤75mA |
Response Time | ≤500ms 90% of the final value |
Conversion accuracy (20℃, 4~20mA) | See Table 2 for details (excluding cold end compensation errors). |
Cold end compensates for accuracy | ±1℃（Automatic compensation） |
Temperature drift（-20℃~+60℃） | 0.005%F.S./℃ |
The use of ambient temperature | -20℃～+60℃ |
Connected field equipment and the area where it is located | Pt100, Cu50, Cu100, T, E, J, K, N, R, S, B thermocouple, millivolt signal sensor; Zone 0, zone 1, zone 2, ⅡA, ⅡB, ⅡC, T4 ~ T6 danger zone |
Hazard side input | |
Input Signal | See Table 2 for details. |
Voc | ≤28V |
Safe side output | |
IOUT | 4～20mA |
load resistance | RL≤450Ω |
Output Impedance | ≥1MΩ |
