Model 755A

Instruction Manual

245364-V May 2002

 

 

R3

 

 

R8

R4

R1

 

R9

R2

 

R5

 

 

CR2

R6

 

 

 

U6

 

 

I G O

 

 

1

U3

 

 

2

 

 

3

 

 

 

4

U2

 

 

 

 

 

C5

C4

 

 

I

C2

 

 

G

U4

U1

 

O

 

Control Board

U5

 

 

I G O

C3 CR1

C1

 

 

 

J1

Current Output

Board

Recorder Output Voltage

Selection Jumper

5V 1V 0.1V 0.01V

JP3

Figure 2-2. Control Board

 

 

 

 

 

 

 

 

 

 

 

 

755A

 

 

 

 

 

Potentiometric

 

 

Analyzer

 

 

 

 

 

Recorder

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input

 

 

 

 

 

 

 

 

Terminals

 

 

 

 

Voltage Divider

 

(Make sure polarity

 

 

 

 

 

is correct)

 

 

 

 

(Customer Supplied)

 

 

 

 

 

 

 

 

 

 

 

Position of Recorder Output

Minimum Permissible

 

 

 

Selector Plug

Resistance for R1 + R2

 

 

 

 

10 mV

 

1K Ohm

 

 

 

 

 

100 mV

 

10K Ohm

 

 

 

 

 

1 V

 

100K Ohm

 

 

 

 

 

5 V

 

2K Ohm

 

 

 

 

 

 

 

 

 

 

 

 

Figure 2-3. Connections for Potentiometric Recorder with Non-Standard Span

Rosemount Analytical Inc. A Division of Emerson Process Management

Installation 2-3