Model 755A

Instruction Manual

245364-V May 2002

Control Board

Location for Optional Current

Output Board

 

Span -

Jumper Select

ZERO Control

SPAN Control

Recorder Output -

Jumper Select

Zero Suppression

Adjustment

CAL2 Adjustment,

Pressure Compensation

 

 

 

 

Zero Offset -

CAL1 Adjustment,

 

 

Case Board

Jumper Select

Pressure Compensation

 

Recorder Output

 

 

 

 

 

 

 

 

TB2

 

 

 

 

Case Heater

Alarm Relay Assembly

NO. 1

 

 

Assembly

 

 

 

(Alarm Option)

 

NO

 

 

 

COM

 

 

 

 

NC

 

HOT

 

RESE

 

 

 

 

NO. 2

NO

MA

MV

 

 

+ -

+COM

 

CO

TB2

 

 

 

 

 

 

NC

 

 

 

RESET

 

Fuse

 

 

 

 

Case Heater

Fuse

 

 

 

 

AC Power

 

 

 

 

 

 

 

TB1

 

 

 

N

H

 

 

 

GND E

O

 

 

 

U

 

 

 

T

 

 

 

T

 

 

 

 

 

AC Power

 

 

 

Detector/Magnet As-

TB1

 

 

 

sembly Shock

 

 

 

 

Mount

 

 

 

Transducer

Transformer, Power T1

 

Detector/Magnet

 

Assembly

(Behind TB1)

 

 

 

 

 

 

 

Figure 1-2. Model 755A Component and Adjustment Locations

Rosemount Analytical Inc. A Division of Emerson Process Management

Description and Specifications

1-3