Model 6013/6014
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
3
Guard
Guard
Guard
Guard
-In
-In
-In
-In
+In
+In
+In
+In
-Exc
-Exc
-Exc
-Exc
Ecom
Ecom
Ecom
Ecom
+Exc
+Exc
+Exc
+Exc
1
3
5
7
2
4
6
8
18
20
22
24
34
36
38
40
19
21
23
25
35
37
39
41
Channel Signal Pin
4
5
6
7
4
5
6
7
4
5
6
7
4
5
6
7
4
5
6
7
4
5
6
7
Guard
Guard
Guard
Guard
-In
-In
-In
-In
+In
+In
+In
+In
-Exc
-Exc
-Exc
-Exc
Ecom
Ecom
Ecom
Ecom
+Exc
+Exc
+Exc
+Exc
9
11
13
15
10
12
14
16
26
28
30
32
42
44
46
48
27
29
31
33
43
45
47
49
Channel Signal Pin
1
34
18
17
50
33
Input Connector
50-Pin Type D
output to the 6000’s data bus. It is used for
thermocouples, DC LVDTs and other voltage output
transducers.
A circuit measures and digitizes temperature of a
remote sensor at the thermocouple terminations.
PI660 software uses this measurement to cold
unction compensate thermocouple readings.
Calibration may be performed by substituting a
precision input from a traceable source. Inputs can
be switched to the 6000’s voltage calibration bus and
attenuated to match gain settings.
4-5.1 Inputs
Transducer inputs may connect directly to the input
connector (crimp or solder pins available), to screw
terminals in the 6015 Thermocouple Junction Box or
to the 6081 Screw Terminal Adapter.
4-5.2 Voltage Inputs
Connect the input signal to +In and -In. The guard
shield should normally connect to ground for
grounded inputs or to -In for floating inputs. Maximum
operating potential that can be applied between
ground or guard and either input is ±10 Volts and ±50
Volts without damage.
6013 Input Connections
4-5.3 Thermocouples
Thermocouples used with an ice-point junction or othe
external junction compensation can connect directly to
the 6013 or screw terminal adapter, otherwise the
6015 junction box is recommended.
Connect the thermocouple to +In and –In.
Thermocouples may be grounded or floating. For
grounded thermocouples, connect the guard shield to
ground as close as possible to the thermocouple to
minimize common mode voltage and noise. If this is
not possible, connect guard to -In as close as possible
to the thermocouple. Guard must be connected even
if the only possibility is in the junction box or input
connector.
For floating thermocouples the guard should be
connected to -In as close as possible to the
thermocouple. As for the grounded thermocouple,
guard should not be left unconnected.
In a few situations for floating thermocouples, it may
be necessary to install a high resistance between +In, -
In, guard and ground to insure that the common mode
voltage does not exceed the ±10 Volt amplifier rating;
see Section 6-3.5. This condition usually manifests
itself by unstable output with unexplained zero shifts
and errors.
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