WIKA A-AI-2 - Manual (Page 10)

4 Design and function
10 WIKA operating instructions, model A-AI-2
4 Design and function
4.1 Description
The attachable indicator A-AI-2 is a microprocessor controlled displaying, monitoring and controlling
device. In accordance to his type the device is supporting an input for standard signal 4…20 mA .
The device is available in two different versions. In the given operating instructions both versions are
described. If there is nothing other montioned, the declarations are for both versions.
version
Order code
A-AI-2-1 A-AI-2-AA1TB-Z
A-AI-2-S
A-AI-2-AASTB-Z
version A-AI-2-1 (standard)
In according to his type the device is
supporting an input for standard
signals 4…20 mA. The device
features one switching output (npn-
output), which can be configured as
2-point-controller or min/max alarm
output. The state of the switching
output is displayed with the LED left
beneath the LED-display.
version A-AI-2-S (optional)
The device features two switching
outputs (npn-output), which can be
configured as 2-point-controller, 3-
point-controller, 2-point-controller with
min./max.alarm
or min./max. alarm
output (common or individual). The
state of the switching outputs is
displayed with 2 LED beneath the
LED-display. The left LED indicates
the state of the 1st output and the right
LED the state of the 2nd output.
When leaving our factory the A-AI-2 has been subjected to various inspection tests and is completely
calibrated.
Before the A-AI-2 can be used, it has to be configured for the customer’s application.