Flowserve CENTURA Analog Output Options Calibration Bedienungsanleitung PDF herunterladen (Seite 2)

LME0011-1 (AUTO-68) 12/00

2000, Flowserve Corporation, Provo, Utah

3-Position Control/Dribble Control

SR Limit Switch Method

Flowserve Corporation 765 South 100 East Phone: 801 373 3028

Flow Control Division Provo, Utah 84606 Facsimile: 801 489 2228

www.flowserve.com Email: actuators@flowserve.com

Automax Valve Automation Systems

Installation, Operation and Maintenance Instructions

Page 2 of 2

Problem

Output is not continuous throughout actuator/valve stroke

(experience a band of max. output)

Transmitter does not out 4 or 20 mA at desired end of

travel.

Transmitter module does not provide current signal or

provide constant signal.

Output not linear or does not track valve position/rotation

Probable Cause/Solution

Potentiometer is out of adjustment (see “Resistive

Feedback Calibration” or 4-20mA Current Transmitter

Calibration” steps 2-4).

Zero or span trim potentiometer is out of adjustment (see

4-20mA Current Transmitter Calibration).

Circuit Board LED not lit:

1. Loose or shorted signal connection (no loop power).

2. Controller board not responding (replace board)

Circuit Board LED lit:

1. Potentiometer disengaged.

2. Defective potentiometer or controller board. Replace

defective component.

Input signal not linear. Linkage or drive mechanism is

introducing non-linearity. Zero span trim potentiometer is

out of adjustment (see 4-20mA Current Transmitter

Calibration).

Troubleshooting

Figure 1 – 4-20 mA Transmitter Diagram

1 2

Keine Kommentare

Flowserve CENTURA Analog Output Options Calibration Bedienungsanleitung Seite 2