Super Systems 7EK 31080 - Manual (Page 6)

2
LINEAR INPUT
Fig. 4 mA, mV AND V INPUTS WIRING
NOTES:
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.
RTD INPUT
Fig. 3 RTD INPUT WIRING
Input: for RTD Pt 100 W , 3-wire connection.
Line resistance: automatic compensation up to 20 W /wire
with no measurable error.
NOTES:
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.
4
RTD
1 3 4
RTD
1 3
mA,
mV
or
V 3
Shield
1
3
1
G
_
+
_
+
mA,
mV
or
V
Input type
11
12
13
14
15
16
17
18 0 - 60 mV
12 - 60 mV
0 - 20 mA
4 - 20 mA
0 - 5 V
1 - 5 V
0 - 10 V
2 - 10 V
impedance
> 1 M W
< 5 W
> 200 k W
> 400 k W
Accuracy
0.2 % + 1 digit
@ 25°C
31080-1-00.p65 3/24/00, 11:58 AM 2