Specifications

APPENDIX B. ELECTRIC POSITION TRANSMllTER FOR

8 INCH x 14 INCH POWER POSITIONER

SECTION I. DESCRIPTION

The Rosemount Electric Position Transmitter Field Retrofit position of the potentiometer to a low level DC current

Kit is designed for installation on the Rosemount 8 x 14 which can be read on a DC milliammeter. The amplifier

Torque Type Power Positioner. It transmits the position of can be set to indicate “zero” with the piston extended or

the piston rod through a mechanical linkage to a

retracted.

potentiometer. The electric position transmitter converts the

SECTION II. CALIBRATION

B-l. AMPLIFIER CALIBRATION.

NOTE

a. If the zero point of the positioner is with the

piston fully retracted, jumpers Pl and P2 should

be in the Jl and 53 positions. If the zero point is

with the piston fully extended, then move the

jumpers to J2 and 54 position (Figure B-l). The

EFT cover must be removed to access the

jumpers.

Electric Position Transmitter units are

preset at the factory for reverSe operation

ljumpers in the JUJ4 position).

b. Refer to Figure B-2 for a typical EPT wiring

diagram.

c. Remove two plug buttons (1, Figure B-2) from

the top of the transmitter case.

SPANn n EE

tu”&-J -

111

l’ ‘II-I lH----- I-1

1 CONFIGURATION CHART 1

JUMPER 1 DIRECT 1 REVERSE

PI Jl

P2 J3

Figure B-l. Jumper and Adjustment Location