Badger Meter SRD/SRI Valve Positioners - Manual (Page 18)

Additional Inputs / Outputs
Two Binary (Contact) Inputs – Code B
Two independent binary inputs, supplied with the basic
device, for connection of external switches
A connected switch is loaded with 3 5 V, 150 μA
The Binary Inputs option can also be used to activate PST
(Partial Stroke Test)
The binary inputs can be used for diagnostics or are also
configurable for the control functions:
Switch 1 Switch 2 Actuator Control Function
close close normal operation
open close go to stop at 0%
close open go to stop at 100%
open open hold last position
Terminals for:
• EB1—A: 13+ B: 14–
• EB2—C: 15+ D: 16–
For further information about the contact inputs please
consult TI EVE0105_B
Electrical Classification ATEX
• Types of protection and temperature classes of basic
device, see page 13
• Additions for this option, Type AI 638 B, in EC- Certificate
of Conformity PTB 00 ATEX 2128:
◊ To this electric circuit only passive electric circuits
galvanically separated from earth may be attached
◊ The electric circuit has the following maximum
values: Uo= 7 88 V, Io= 11 4 mA, Po= 23 mW
• Characteristic is linear
For the maximum values of outer inductances and
capa- cities Lo and Co refer to the following table (Li and
Ci included):
IC IIB
Lo [mH] Co [μF] Lo [mH] Co [μF]
100 0 72 100 3 9
10 1 1 10 5 5
1 1 6 1 8 7
0 1 2 7 0 1 15
0 01 4 7 0 01 27
The electric circuits of 2 Binary Inputs are galvanically
connected with all other circuits but separated from earth
One module “Additional inputs / outputs” 8 can be plugged
onto main electronics 40:
• 2 binary inputs or
• 2 binary outputs or
• 2 binary in/outputs or
• Position feedback and alarm
DTM Configuration Window
Additional Equipment
Page 18 August 2014 POS-UM-00223-EN-02