Analog / Digital Input Module; Thermocouple; Resistance Thermometer (Rtd) - ABB ScreenMaster RVG200 Operating Instructions Manual

ScreenMaster RVG200
Paperless recorder

3.4 Analog / digital input module

Note. Tighten analog / digital input terminal screws to a torque of 0.1 Nm (0.9 lbf.in).

3.4.1 Thermocouple

Use the correct compensating cable between the thermocouple and the terminals – see Table 3.1.
Automatic cold junction compensation (ACJC) is incorporated but an independent cold (reference) junction
may be used.
Thermocouple type
Ni-Cr / Ni-Al (K) Brown Blue
Ni-Cr / Cu-Ni (E)
Nicrisil / Nisil (N) Orange Blue Orange Orange Red Orange
Pt / Pt-Rh (R and S) White Blue Green
Pt-Rh / Pt-Rh (B)
Cu / Cu-Ni (T) White Blue
Fe / Con (J) Yellow Blue Black
Fe / Con (DIN 43710)
Table 3.1 Thermocouple compensating cable

3.4.2 Resistance thermometer (RTD)

On applications requiring long leads it is preferable to use a 3-lead resistance thermometer.
If 2-lead resistance thermometers are used, each input must be calibrated to take account of the lead
resistance.
18
BS1843 ANSI MC 96.1
+ – Case +
Red Yellow Red Yellow
–
Black Red Green
–
Blue Blue
White Red Black
–
Compensating cable
DIN 43714
– Case +
Red Green Green Green White Green *
–
Red White White Orange White Orange *
–
Red Blue Red Brown Brown Brown White Brown *
Red Blue
DIN 43710
–
Blue /
Blue
red
3 Installation
BS4937 Part No.30
– Case +
– Violet White Violet *
– Pink White
– Grey White
Blue Black White Black *
* Case Blue for intrinsically safe circuits
Blue
OI/RVG200-EN
– Case
Pink *
Grey *
–