X20 system modules • Temperature modules • X20AT4222
X20 system User's Manual 3.10
2401
4.31.4.3 Technical data
Product ID
X20AT4222
Short description
I/O module
4 inputs for PT100 or PT1000 resistance temperature measurement
General information
B&R ID code
0x1BA7
Status indicators
I/O function per channel, operating state, module status
Diagnostics
Module run/error
Yes, using status LED and software
Inputs
Yes, using status LED and software
Power consumption
Bus
0.01 W
Internal I/O
1.1 W
Additional power dissipation caused by the actua-
tors (resistive) [W]
-
Electrical isolation
Channel - Bus
Yes
Channel - Channel
No
Certification
CE
Yes
cULus
Yes
cCSAus HazLoc Class 1 Division 2
Yes
ATEX Zone 2
Yes
KC
Yes
GL
Yes
GOST-R
Yes
Temperature inputs resistance measurement
Input
Resistance measurement with constant current supply for 2- or 3-wire connections
Digital converter resolution
16-bit
Filter time
Configurable between 1 ms and 66.7 ms
Conversion time
1 channel
20 ms with 50 Hz filter
2 - 4 channels
40 ms per channel with 50 Hz filter
Conversion procedure
Sigma Delta
Output format
INT or UINT for resistance measurement
Sensor
Sensor type
Configurable per channel
PT100
-200 to 850°C
PT1000
-200 to 850°C
Resistance measurement range
0.1 to 4500 Ω / 0.05 to 2250 Ω
Input filter
1st-order low pass / cutoff frequency 500 Hz
Sensor standard
IEC/EN 60751
Common-mode range
>0.7 V
Isolation voltage between channel and bus
500 V
eff
Linearization method
Internal
Measuring current
250 µA ±1.25%
Reference
4530 Ω ±0.1%
Permitted input signal
Short-term max. ±30 V
Max. error at 25°C
Gain
0.037%
1)
Offset
0.0015%
2)
Max. gain drift
0.004% per °C
1)
Max. offset drift
0.00015% per °C
2)
Non-linearity
<0.0010%
2)
Crosstalk between channels
<-93 dB
Temperature sensor resolution
PT100
1 LSB = 0.1°C
PT1000
1 LSB = 0.1°C
Resistance measurement resolution
G = 1
0.1 Ω
G = 2
0.05 Ω
Common-mode rejection
50 Hz
>80 dB
DC
>95 dB
Standardized value range for resistance measure-
ment
G = 1
0.1 to 4500.0 Ω
G = 2
0.05 to 2250.0 Ω
Temperature sensor standardization
PT100
-200 to 850°C
PT1000
-200 to 850°C
Table 837: X20AT4222 - Technical data