USER HANDBOOK 1.0 | DC2115, ET2115
Berghof Automation GmbH | Harretstrasse 1 | 72800 Eningen | www.berghof.com
21-0099-82-00-00-003 | 270010900_Anwenderhandbuch_DC-ET2115_EN.docx
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Operating mode: voltage input AI (U)
Feature
Value
Description
Greatest temporary
deviation during elec-
trical error testing ac-
cording to IEC 61131-
2
1% of measuring range
–
Operating mode: temperature inputs AI-PT
Feature
Value
Description
Connections per input
–
Sensor connection between AI (U/T) and AGND
(if necessary a further AI (U) channel can be used
for 3-wire measurement)
Possible sensors
PT100 and PT1000
acc. to EN 60751
Platinum sensors of accuracy classes AA, A, B and
C may be used
Measuring range
–40 to +200 °C
–
Measuring current
(RMS)
0.3 mA
–
Conversion time
250 ms
–
Max. errors at 25 °C
±2100 ppm (±0.5 °C)
–
Temperature coeffi-
cient
±50 ppm/K
(±0.012 °C/K)
–
Digital resolution
24 bit
–
Data format in the user
program
2 × 32 bit real
(floating-
point number) in Ohms (Ω) and degrees
Celsius (°C)
Linearisation
–
The value in degrees Celsius is calculated from the
resistance value and linearised (6th degree poly-
nomial)
Input type
–
2-wire measurement or 3-wire measurement
Reference potential
AGND
–
Dynamic characteristics
Analogue filtering
Low-pass second order,
limit frequency 650 Hz
–
Greatest temporary
deviation during elec-
trical error testing ac-
cording to IEC 61131-
2
1% of measuring range
–