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Micromod MOD: MODCELL Multiloop Processor 2002N Model C and Associated Hardware User Manual

Page 42

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MODCELL Multiloop Processor

ELECTRICAL CONNECTIONS

3.5.5 2001A Voltage Input (VCIM)

Make volt or millivolt connections to terminal block as shown in Figure 3-7. Input
specifications are:

ANALOG INPUT (VOLTAGE)

Range: (0-100%) ±10 VDC, ±100 mV DC
Low limit: -11V, -110 mV
Upper limit: +11V, +110 mV
Input Resistance: 1 Megohm
Noise filter: 3 db at 5 Hz, 3 db at 3 Hz
Resolution: 16 bits
Sensitivity: 0.4mV, 4uV
Accuracy (calibrated): ±0.1% of span
Isolation : 250 Vrms
Max Survivable Input: ±300 VDC or 250 VAC (Differential)
Common mode rejection: 100 db at 60 Hz minimum
Normal mode rejection: 40 db at 60 Hz minimum

S-3031-19

Figure 3-

6

. Typical Input Circuit for 2001A Voltage Input Module

S19

A/D

+

BASE INSTRUMENT

LOWER

TERMINAL

HOUSING

SH1

2001A VOLTAGE INPUT MODULE
(Module Location 19)

Voltage

Source

(±100mV

or ±10V

DATA

Processor

SEL

CLK

GND

+5V dc

Input

Isolation

+10V Iso

3

6

4

7

5

1

2

A

B

Shield

Connection to

Either Terminal

2

1

3

6