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Amphenol (MD), Inc., Proprietary Information

Export Controlled Technical Data as specified on cover page

1. Introduction

Scope

The Wilcoxon, model PCH series sensor, revision 1 complies with HART Protocol Revision 7.5. This document specifies all

the device specific features and documents HART Protocol implementation details (e.g., the Engineering Unit Codes

supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its

complete support in HART capable Host Applications.

Purpose

This specification is designed to complement other documentation (e.g., the Installation Manual) by providing a complete,

unambiguous description of this Field Device from a HART Communication perspective

Who should use this document?

The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators

and knowledgeable End Users. It also provides functional specifications (e.g., commands, enumerations and performance

requirements) used during Field Device development, maintenance and testing. This document assumes the reader is

familiar with HART Protocol requirements and terminology.

References

HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF.

2. Device Identification

Manufacturer Name:

Wilcoxon

Model Name(s):

PCH420V-M12,

PCH420V-R6

Manufacture ID Code:

24,744 (0x60A8)

Device Type Code:

58,092(0xE2EC)

HART Protocol Revision

7.5

Device Revision:

1

Number of Device Variables

4

Physical Layers Supported

Bell202

Physical Device Category

Sensor, Vibration, Velocity

The model name and serial number are engraved on the case of the sensor.

3. Product Overview

The PCH series sensor is a loop powered vibration sensor with HART® interface. The sensor is a piezo-electric

accelerometer or velocity sensor (two hardware versions). The 4-20mA output is proportional to the level of vibration

measured at its mounting base. The sensor can transmit several banded vibration values and its own internal temperature via

HART®. Configuration and local calibration are performed through the digital communication interface.

® HART is a registered trademark of the HART Communication Foundation

® HART is a registered trademark of the HART Communication Foundation