6
Overview and Connectors
IFU 2.1 User Manual V6805, Version 2.0
The red LED „Error“ lights up if a calibration error is detected while running the
self-test or if the software sends a signal that is not recognized by the device.
Analog Inputs (AN.IN)
Serving the purpose of receiving analog signals, up to 4 channels or devices can
be connected to the interface box. Channels are independent of each other and
can be used simultaneously by one system or various systems.
Analog Outputs (AN.OUT)
These outputs send analog voltage signals to control devices, which have the
necessary inpus. According to the number of outputs, four of these devices can
be controlled with one interface box. The outputs can be programmed inde-
pendently of each other. This e. g. refers to the control of pumps in a high pres-
sure gradient system.
Digital Inputs (DIG.IN)
These four inputs are trigger inputs receiving a start signal from the injection
system. They work with contact end on ground and are compatible for TTL/
CMOS or open collectors. If the channels are used for different systems, it is
possible to start each channel individually.
Fig. 3 LED
Voltage range
2.56 to +2.56 V (bipolar mode)
Absolute maximum ratings
10 V to +10 V
Input impedance
10 MΩ
Maximum resolution
24 bit
Minimum noise level
7 μV (1 Hz, time constant 0.1 s)
Maximum data rate
up to 10 Hz (each channel)
Gain factor (for all channels)
1, 2, 4, 8, 16
Voltage range
0 V to +10 V
Minimum voltage step (DAC resolu-
tion)
2.5 mV (12 bit)
Maximum load resistance
2 kΩ
Max. high level input voltage
+15 V
Min. high level input voltage
+2.5 V