Samson TROVIS SAFE 3731-3 User Manual

Series 3731
TROVIS SAFE 3731-3
Electropneumatic Ex d Positioner
with HART
®
communication
Mounting and
Operating Instructions
EB 8387-3S EN
Firmware version 1.61
Edition May 2017
Fig. 1 · TROVIS SAFE 3731-3
EB + CD

Samson TROVIS SAFE 3731-3 Specifications

General

Brand	Samson
Model	TROVIS SAFE 3731-3
Category	Valve Positioners
Language	English

Summary

Important Safety Instructions

Design and Principle of Operation

Technical Data

Lists detailed technical specifications of the positioner.

Attachment to the Control Valve

Direct Attachment

Details the procedure for direct attachment to SAMSON Type 3277 Actuators.

Attachment according to IEC 60534-6 (NAMUR)

Explains how to attach the positioner using NAMUR brackets.

Connections

Pneumatic Connections

Explains pneumatic connections, supply pressure, and air quality requirements.

Electrical Connections

Covers electrical connection requirements for different protection types.

Establishing Communication

Explains how to establish communication using HART® protocol.

Operator Controls and Readings

Readings on Display

Start-up – Settings

Checking the Operating Range

Guides on how to check and verify the operating range of the positioner.

Allocating the Closed Position

Details how to set the closed position (0% travel) based on valve type.

Positioner Initialization

Explains the crucial step of initializing the positioner for accurate operation.

Initialization based on MAX Maximum Range

Initialization based on NOM Nominal Range

Zero Calibration

Operation

Enabling and Selecting Parameters

Operating Modes

Malfunction/Maintenance Alarm

Servicing Explosion-Protected Devices

Code List