Micromod MOD: Modcell 2050R Users Guide Manual de usuario descargar pdf (Pagina 19)

IB-23C650

INSTALLATION

PROCESS INPUT SIGNAL CONNECTIONS

Process input connections are shown as follows:

• Thermocouple Inputs - see Figure 3

• RTD Inputs - see Figure 4

• mA Inputs from 2-Wire Transmitters - see Figure 5

• mA Inputs from Non 2-Wire Transmitters - see Figure 6

• Volt Inputs - see Figure 7

• mV Inputs - see Figure 8

• Digital Inputs - see Figure 9

• Motorized Valve Inputs - see Figure 10

• Slidewire Inputs - see Figure 10

NOTE: Input 2 is available when an option card is installed. Input 2 is an

isolated universal analog input which accepts mV dc, mA dc (2-wire

& non 2-wire), RTD, Thermocouple, and slidewire inputs. Input 2

connections are made as shown in Figures 3 through 10, using the

terminals identified as I/O 2

: General process input signal specifications are:

Open Input Fault Detection: Recover option is user configurable

Input Isolation: Galvanic isolation using transformers and optical

isolators. The process input circuit is isolated; however, if

a field input is completely floating, it may pick up

electrical noise. Field inputs should be grounded in the

field or at the instrument.

Input Resistance: 10M ohms minimum

Input Common Mode Rating: 45V dc

Common Mode Rejection: 120 dB @ 50/60 Hz

Normal Mode Noise Filter: 20 dB minimum @ 60 Hz

Maximum Normal Mode Voltage: 30V dc (except current input)

Display Accuracy: Input accuracy±one least significant display digit

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 227 228

Sin comentarios

Micromod MOD: Modcell 2050R Users Guide Manual de usuario Pagina 19