ELECTRICAL CONNECTIONS
4
35
H250 M40
www.krohne.com
03/2020 - 4000640706 - MA H250-M40 R06 en
4.2.5 ESK4-T binary input
The binary input can be used to control the internal flow counter (start/stop/reset).
This binary input can be activated in the menu of the indicator and can be configured to ACTIVE
HI or ACTIVE LO.
If the input is set as ACTIVE LO, an interruption causes the counter to be reset.
For further information on configuration of each function refer to
ESK4-T menu
on page 48.
The binary input has an internal resistance R
i
of 20 k
Ω
.
Binary input
B3
Terminal no.
7
8
Connection
+
-
Table 4-7: Value range for NAMUR
Figure 4-12: Binary input
1
Function active HI
2
Function active LO
Input voltage
U
L
[V]
U
H
[V]
lower limit
upper limit
lower limit
upper limit
Terminal (7) (8)
0
2
16
30
Table 4-8: Value range