Tab. 6: Current output
Terminal
Signal Description
Function
Cut-off fre‐
quency
Precision
Load
Galvanic Isola‐
tion
XK1 1
AN-A
+
Analog
output 1
0/4-20
mA
output
Approx. 3Hz 0.5 % of the
measuring
range
Max.
400Ω
Isolated to the
μC and all other
interfaces
2
AN-A-
3
AN-A
+
Analog
output 2
0/4-2
0mA
output
Approx. 3Hz 0.5 % of the
measuring
range
Max.
400Ω
Isolated to the
μC and all other
interfaces
4
AN-A-
Description
Value
Insulation voltage:
500Vpp max.
Output voltage max.:
18V (idle)
Overvoltage-resistant up to: ±50V (no function, for output current 0mA, at 21.5mA up to 30V, otherwise
overheating of the control transistor is possible)
Ripple max.:
450 ohm at 21.5 mA (alarm), 480 ohm at 20.5 mA
Output current:
0/3.8 – 20.5mA; 21.5mA (alarm)
Cut-off frequency:
approx. 3Hz
Accuracy:
± 0.5% of the limit value at device temperature = calibration temperature
Resolution:
>12 bit
PWM frequency:
approx. 200Hz
8.5 Standards
Description
Standard
Electrical safety:
EN 61010 Measuring, control, regulating and laboratory devices
EMC:
DIN EN 61326-1 Measuring, control, regulating and laboratory devices
Technical data
35