EB 8331-1 EN 7
Design and principle of operation
Digital positioner
1)
Operating mode 1 Operating mode 2 Operating mode 3
Input variable
2)
Range
4...20 mA, Ri = 0.05 k
Ω
2...10 V, Ri = 10 k
Ω
0...20 mA, Ri = 0.05 k
Ω
0...10 V, Ri = 10 k
Ω
As per settings
3)
Resolution 10 Bit
Position feedback
signal
4) 5)
Range
4...20 mA, R
B
0.2
≤
k
Ω
2...10 V, R
B
≥
5 k
Ω
0...20 mA, R
B
≤
0.2 k
Ω
0...10 V, R
B
≥
5 k
Ω
As per settings
3)
Resolution 8 Bit
Characteristic
Increasing, actuator stem retracts or extends
as the input variable increases
As per settings
3)
Travel Adjustable 6 to 20 mm at 15 mm rated travel
6 to 35 mm at 30 mm rated travel
(the travel range between 12 and 35 mm has been extended to between 6
and 35 mm for 30 mm rated travel in positioner version V1.10 and higher)
Setting
Using travel calibration button
(1 mm each time the button is pressed)
As per settings
3)
using button
1 binary input Electrically isolated, switching voltage 18 to 30 V DC, approx. 7 mA
1 binary output Electrically isolated semiconductor contact, max. 45 V DC,
min. 3 V DC, max. 25 mA
Integrated interface for SAMSON
memory pen /PC
Data transmission including settings, operating status and alarms
Transfer protocol: SAMSON SSP protocol
Retrofittable bus interface On request
Total delay time Approx. 30 ms
Accuracy
≤
2.5 % without taking the dead band into account
1)
Maximum two current inputs may be switched in series
2)
Maximum values ±50 mA or ±25 V
3)
SAMSON TROVIS-VIEW Operator Interface software, SAMSON memory pen
4)
Can only be taken from current or voltage signal
5)
Not when retrofittable interface is used
