3
RTD INPUT
Fig. 5 RTD INPUT WIRING
NOTE
:
1) Don’t run input wires together with power
cables.
2) Pay attention to the line resistance; a high line
resistance may cause measurement errors.
3) When shielded cable is used, it should be
grounded at one side only to avoid ground loop
currents.
4) The resistance of the 3 wires must be the
same. Use the same gauge wire for all three
conductors.
1
RTD
3
2
1
RTD
3
2
B) RELAY OUTPUTS
Fig. 6 RELAY OUTPUT WIRING
The OUT 1 NO contact and the OUT 2 contact are
protected by varistor against inductive load with
inductive component up to 0.5 A.
The contact rating of the OUT 1 is 3A/250V AC on
resistive load.
The contact rating of the OUT 2 is 1A/250V AC on
resistive load.
The number of operations is 1 x 10
5
at specified
rating.
NOTES
1) To avoid electric shock, connect power
line at the end of the wiring procedure.
2) For power connections use No 16 AWG
or larger wires rated for at last 75 °C
(167°F).
3) Use copper conductors only.
4) Don’t run input wires together with power
cables.
The following recommendations avoid serious
problems which may occur, when using relay
output for driving inductive loads.
8
6
7
C
NC
NO
OUT 1
4
5
C
NO
OUT 2
1601-1-0C.p65
5/2/00, 1:45 PM
3