bachmann AIO288/1

The analog input/output module AIO288/x offers 8 analog input 

channels as well as 8 analog output channels.

• 8 analog inputs

• 8 analog outputs

• Connection possibility single-ended or differential

• Power supply for up to 4 potentiometers

• Temperature inputs for up to 

4 Pt100/Pt1000 sensors

• 2-wire or 4-wire inputs for Pt100/Pt1000 sensors

• Wire break detection for the inputs 

(for voltage and temperature)

• Short circuit proof outputs

• Overload detection for potentiometer power supplies

• Monitoring of the external supply voltage

Quantity Max. 8

Input voltage ±1 V or ±10 V

Input impedance > 100 kΩ

Digital resolution 14 bit

Allowed common mode voltage Max. ±1 V

Basic accuracy at 25 °C Max. ±0.05 % of input voltage range

Input cutoff frequency 1.5 kHz (3 dB)

Cross-talk attenuation > 60 dB

Sample time 200 µs

Voltage outputs

Quantity Max. 8

Output voltage ±10 V

Digital resolution 14 bit

Allowed common mode voltage Max. ±1 V

Basic accuracy at 25 °C Max. ±0.025 % of measuring range

Settling time of 1 % of the 

output current range

Max. 400 µs

Cross-talk attenuation > 60 dB 

Refresh cycle time 200 µs

Current inputs

Quantity Max. 8

Input current 0 to 20 mA

Input impedance 243 Ω

Digital resolution 14 bit

Max. input current 35 mA (destruction limit)

Basic accuracy at 25 °C Max. ±0.1 % of measuring range (20 mA)

Input cutoff frequency 1.5 kHz (3 dB)

Sample time 200 µs

Temperature inputs

Temperature inputs Pt100, Pt1000 selectable

Quantity Max. 4

Connection type 2- or 4-wire, optional

Temperature range -100 to +500 °C

Input impedance > 100 kΩ

Basic accuracy at 25 °C Max. ±0.1 % of measuring range (600 kelvin)

Input cutoff frequency 1.5 kHz (3 dB)

Value of the LSB 0.1 K

Sample time 200 µs

Galvanic isolation from system 500 V

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