Stratos Multi E401N
55
5.5.1 Current Outputs
The current outputs are deactivated ex works. Current outputs 3 and 4 need to be activated by TAN
(TAN option FW-E052).
Adjustable parameters for the current outputs
Usage
On, Off
Process Variable
Selection from all available process variables
Current Range
4 … 20 mA or 0 … 20 mA
Characteristic
Linear
Trilinear (input of additional vertex points required)
Function (input of a 50 % point required)
Logarithmic
Table (with TAN option FW-E006 “current characteristic”)
Current Characteristic (FW-E006), p. 201
Output
Output current range 4 … 20 mA or 0 … 20 mA
Start 0(4) mA
Start of span
End 20 mA
End of span
Output Filter
To smooth the current output, a low-pass filter with adjustable filter time constant can
be switched on. The filter acts on the current output only.
Function Check
Current output response in the Function Check mode: Output of the current measure-
ment, the last measured value, or a fixed value 0 … 22 mA.
Behavior during Messages
Failure
Current output response in the event of a failure message:
Off, 3.6 mA, 22 mA
Delay
Input of a delay of 0 … 600 s in the event of a failure message.
Settings can be changed in the
Current Outputs
submenu:
Parameter Setting
Inputs and Outputs
Current Outputs
Setting the Span: Start (0/4 mA) and End (20 mA)
0
5
7
14 [pH]
[mA]
4
20
5
7
[pH]
[mA]
4
20
1
2
1 Span pH 0 … 14
2 Span pH 5 … 7
Higher resolution in range of interest
