Knick Stratos Multi E401N - Inputs and Outputs; Current Outputs

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