10 -
ATR121/141 - User manual
An1 Analogue Input
-
+
Tc
11
12
Shield/Schermo
For thermocouples K, S, R, J.
• Comply with polarity
• For possible extensions, use
compensated cable and terminals
suitable for the thermocouples
used(compensated)
• When shielded cable is used, it should
be grounded at one side only
(
only for models: AD / ADT
)
For a correct functioning of the device,
use sensors insulated from the ground.
Otherwise, use a single transformer
isolated for each instrument.
10
11
12
PT/NI100
Shield/Schermo
For thermoresistances PT100, nI100
• For the three-wire connection use wires
with the same section
• For the two-wire connection
short-circuit terminals 10 and 12
• When shielded cable is used, it should
be grounded at one side only
10
11
12
ROSSO
BIANCO
ROSSO
Shield/Schermo
PTC/NTC
10
11
For thermoresistances nTc, PTc, PT500,
PT1000 e potentiometers
•
When shielded cable is used, it should
be grounded at one side only to avoid
ground loop currents
Summary of Contents for ATR 121
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