Samson 3725 series User Manual

Series 3725
Electropneumatic Positioner
Type 3725
Mounting and
Operating Instructions
EB 8394 EN (1300-1621)
Firmware version 1.0x
Edition February 2012
Fig. 1 · Type 3725 Positioner

Samson 3725 series Specifications

General

Brand	Samson
Model	3725 series
Category	Valve Positioners
Language	English

Summary

Safety Instructions

Design and Principle of Operation

Technical Data

Attachment to Control Valve and Accessories

Direct Attachment

Details the process of directly mounting the positioner onto specific actuator types.

Type 3277-5 Actuator Attachment

Specific instructions for attaching the positioner to the SAMSON Type 3277-5 Actuator.

Type 3277 Actuator Attachment

Attachment according to IEC 60534-6

Describes the mounting procedure using a NAMUR bracket as per IEC 60534-6.

Attachment to Type 3372 Actuator

Attachment to Rotary Actuators

Instructions for mounting the positioner onto rotary actuators using a mounting bracket.

Mounting Parts and Accessories

Connections

Start-up and Settings

Enabling Configuration

Initialization

Guides the positioner through self-adaptation to friction and signal pressure.

Zero Calibration

Recalibrates the internal electric zero point for accurate valve closing.

Reset

Faults

Explains fault indications, error codes, and troubleshooting steps.

Code List

Error Codes

Lists error codes, their meanings, and recommended actions for troubleshooting.