Dual Analog/Digital Inputs; Thermocouple - ABB SM500F User Manual

SM500F
Field mountable paperless recorder

2.5 Dual Analog/Digital Inputs

2.5.1 Thermocouple

Use the correct compensating cable between the thermocouple and the terminals – see Table 2.1,
page 20.
Automatic cold junction compensation (ACJC) is incorporated but an independent cold (reference) junction
may be used.
Input 1 Input 2
1 2 3 4
+ – + –
Voltage
*
Fig. 2.10 Dual Analog/Digital Input Connections
Note. Analog/digital input terminal screws must be tightened to a torque of 0.5 Nm (4.5 lbf.in).
IM/SM500F Rev. Z
Input 1 Input 2
1 2 3 4
– –
* *
Current
2 Installation
Input 1 Input 2
1 2 3 4
– –
Thermocouple
Input 1 Input 2
1 2 3 4
– –
Digital Input
19