wtw LF 170 - Page 46

Operation LF 170
112
ba54104e09 11/2010
Test of current output 2
(only for RT and RT RS option).
6 Press <ENTER>.
Here a fixed current value can be
set on current output 2:
– Set 0.1 mA with <M>
– Set 20.0 mA with <C>
– Increase or decrease the value
as necessary (adjustment
range 0.0 to 20.5 mA) with
<UP><DOWN>
7 Proceed to the next test item with
<ENTER>.
Test the relays
(only with RT and RT RS option).
8 Press <ENTER>.
The tSt display flashes. Now
individual relays can be manually
switched on and off:
– Switch relay 1 on/off with
<ESC>
– Switch relay 1 on/off with <UP>
9 Proceed to the next test item with
<ENTER>.
Test of the RS 485 communication
(RT RS option).
10 Press <ENTER>.
AR
REL1 REL2
C 2er
tst
C
AR
REL1 REL2
=1
C 2er
AR
REL1 REL2
r
St
E Lr
t
r
AR
E Lr
REL1 REL2
Stt
AR
REL1 REL2
r
St
8 54
t