ABB AI895

Technical parameters:

Input channels: 1 channel, fully isolated.

Input type: Voltage (±10V) or current (±20mA)

Resolution: 16 bits.

Accuracy: ±0.1% of full scale.

Range: Voltage: ±10V, current: ±20mA.

Channel isolation: Channels are isolated from the backplane bus and from the field side, with an isolation voltage of 250V AC rms.

Common mode rejection ratio: > 120 dB.

Sequential mode rejection ratio: > 50 dB.

Overload protection: The input can withstand continuous ±35V voltage or ±30mA current.

Power consumption: The power consumption is less than 2.8W (5V DC backplane power supply).

Operating temperature: -25°C to +70°C.

Storage temperature: -40°C to +85°C.

Relative humidity: 5% to 95%.

For more information, please refer to the Datasheet below.

Features:

1. Flexible programmable range: ABB AI895 provides two basic range input modes: voltage (±10V) and current (±20mA). Users can easily select the required range and calibrate through the host computer software to meet the diverse sensor interface requirements.

2. High-precision measurement: With its 16-bit high resolution and accuracy better than ±0.1% full scale, ABB AI895 ensures the accuracy and reliability of sampling of key analog signals (such as pressure, temperature, and flow transmitter output) in industrial sites.

3. Reliable electrical isolation: ABB AI895 achieves effective isolation of up to 250V AC rms between channels and backplane buses, and channels and field signals, significantly suppressing ground loop interference and common mode noise, and improving signal purity and overall system safety.

4. Complete diagnosis and protection: The module has built-in line break detection function to report sensor or wiring faults in time. It also has input overvoltage (±35V) and overcurrent (±30mA) protection capabilities, effectively improving the robustness and long-term operation stability of ABB AI845 in harsh industrial environments.

Application scenarios:

Process control: Accurately collect pressure transmitter (4-20mA) signals in chemical plants for reactor control.

Environmental monitoring: Real-time measurement of water quality monitors (such as pH meters, 0-10V output) data in sewage treatment plants.

Energy management: Power plants accurately measure the temperature of generator/transformer winding thermocouples (transmitted to ±10V by transmitters).

Manufacturing automation: Automotive assembly line control station pneumatic pressure (4-20mA) or oven temperature (4-20mA).

Food and pharmaceuticals: Accurately control the weighing sensor (±10V) signal of the filling equipment tank.