Michell Instruments SF52 User Manual

© 2015 Michell Instruments
This document is the property of Michell Instruments Ltd. and may not be copied or
otherwise reproduced, communicated in any way to third parties, nor stored in any Data
Processing System without the express written authorization of Michell Instruments Ltd.
SF52 Transmitter
For Michell Instruments' contact information please go to
www.michell.com

Michell Instruments SF52 Specifications

General

Power Supply	12 to 28 V DC
Operating Temperature	-40 to +60°C
Protection Rating	IP65
Material	Stainless Steel
Output Signal	4-20 mA
Dew Point Range	-100 to +20 °C
Measurement Range	-100 to +20 °C (-148 to +68 °F) dew point 0 to 100 %RH

Summary

Introduction

SF52 Transmitter Features

Details the key features of the SF52 dew-point transmitter, including measurement range and output options.

Installation Procedures

Instrument Unpacking and Checks

Instructions for checking standard components included in the SF52 transmitter packaging.

Electrical Connections and Schematics

Diagrams showing voltage and mA 3-wire connections for the SF52 transmitter.

Transmitter Mounting Guidelines

Guidance on mounting the SF52 transmitter into sampling blocks or directly into pipes/ducts.

Sample Block Mounting

Procedure for installing the SF52 transmitter into an optional G 1/2" BSP sample block.

Direct Pipeline Mounting

Procedure for directly mounting the SF52 transmitter into a pipe or duct.

Operation and Usage

Sampling Best Practices

Recommendations for obtaining representative gas samples and minimizing measurement errors.

Maintenance and Calibration

Routine Calibration and Re-calibration

Information on routine re-calibration services and recommended intervals for the SF52.

Bonded Seal Replacement Procedure

Details on obtaining replacement bonded seals for the SF52 G1/2-BSP.

Technical Specifications (Appendix A)

Performance Metrics

Details on measurement range, accuracy, repeatability, and stability of the SF52.

Electrical and Mechanical Details

Information on output signal, supply voltage, housing, dimensions, and process connections.

Dimensional Drawings

Diagrams showing the physical dimensions of the SF52 transmitter and sample blocks.

Quality, Recycling, and Warranty (Appendix B)

Compliance Directives and Information

Overview of directives Michell Instruments complies with, including ATEX, RoHS2, and WEEE2.

Humidity Measurement Practices (Appendix C)

Relative Humidity Definition

Explains relative humidity and its common abbreviation RH.

General Measurement Recommendations

Practical advice for accurate humidity measurements and instrument care.

Sampling Environment and Material Guidelines

Guidelines for sampling environments, materials, and avoiding contamination.

Measurement Range Specific Advice

Specific advice for dew point and relative humidity measurements across different ranges.

Return and Decontamination (Appendix D)

Decontamination Certificate Process

Form for declaring the decontamination status of equipment before return or service.

EU Declaration of Conformity

Product Compliance Statement

Declaration stating SF52 compliance with EU directives and relevant standards.