The AI801 analog input module has 8 current input channels

Description

The AI801 analog input module has 8 current input channels, and its detailed characteristics and specifications are as follows:

Input type and range:
Support 0… 20mA and 4… The current input of 20mA d.c. is a single-ended single-pole input.
Channels and isolation:
There are 8 current input channels.
These eight channels are isolated from the ground, providing higher security and reliability for signal transmission.
Resolution:
12-bit resolution ensures accurate measurement of the input signal.
Protection features:
The input shunt resistor is protected to 30V by a PTC resistor, enhancing the module’s resistance to overload.
The analog input has short-circuit protection up to ZP or +24V.
Communication capability:
The input can withstand HART communication, providing the ability to communicate with field equipment.
Connection and power supply:
The process and power supply are connected via removable connectors for easy installation and maintenance.
The power supply of the input stage is converted from the external 24V voltage to provide a stable operating voltage for the module.
Other features:
The current input can withstand a short circuit of the transmitter power supply at least 30V DC without damage, increasing the durability of the module.
Current limiting is achieved through PTC resistors, effectively protecting the module and input circuit.
The input resistance of the current input is 250 ohms, including the PTC resistance, which ensures the stable transmission of the input signal.