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Michell Instruments Cermet II User Manual

Michell Instruments Cermet II
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Cermet II
Hygrometer
User’s Manual
97049 Issue 25.3
October 2016
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Cermet II
Advanced Online
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Setup

Table of Contents

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Michell Instruments Cermet II Specifications

General IconGeneral
BrandMichell Instruments
ModelCermet II
CategoryMeasuring Instruments
LanguageEnglish

Summary

Safety

Electrical Safety

Details electrical safety precautions for instrument operation.

Pressure Safety

Outlines safe operating pressure limits and warnings.

Toxic Materials

Information regarding hazardous materials used in construction.

Repair and Maintenance

Guidance on who should maintain the instrument and where to find contact info.

Calibration

Recommends calibration intervals and procedures.

Safety Conformity

States compliance with relevant EU directives.

Abbreviations

Warnings

INTRODUCTION

Features

Lists key features and capabilities of the Cermet II hygrometer system.

INSTALLATION

Unpacking the Instrument

Step-by-step guide for unpacking the hygrometer and accessories.

Unpacking the Cermet II Transmitter

Instructions for carefully unpacking the dew-point transmitter.

Unpacking the Cermet II Monitor

Procedure for unpacking the monitor unit.

Accessories Pack

Details the contents of the accessories pack.

Cermet II Components

Lists all standard components included with the Cermet II system.

Monitor

Describes the monitor's display, units, and alarm indications.

Monitor Panel Layout

Identifies controls and their functions on the monitor's front panel.

Preparation of the Transmitter Cable

Explains how to prepare and connect the transmitter cable.

Transmitter Mounting

Provides general guidance on mounting the transmitter safely.

Transmitter Mounting - Sample Block and Gas Connections (Optional)

Details mounting the transmitter using a sample block and gas connections.

Transmitter Mounting - Direct Pipeline Connection

Instructions for direct mounting of the transmitter into a pipe or duct.

Transmitter Mounting - With Additional Process Connection Adapter

Steps for mounting the transmitter with a process connection adapter.

Monitor Mounting

Guide for panel mounting the Cermet II monitor unit.

Electrical Connections

Covers power supply connections for the monitor.

Low Voltage Power Supply Input

Specific instructions for low voltage power supply connections.

Pressure Transducer Connection (Optional)

Details connecting an optional pressure transducer.

Transmitter Cable Connection

Explains the diagram and table for transmitter cable connections.

OPERATION - MONITOR

Set-Up Security Feature

How to use DIP-switches to lock configuration settings.

Selecting the Engineering Units

Guide to changing measurement units (°C, °F, ppm, etc.).

Changing the Setpoint Values

Procedure for adjusting alarm setpoints and relay configurations.

Hysteresis, Make/Break delay & delay type

Configuring hysteresis, make/break delays, and delay types for setpoints.

Analog Output Scaling

Steps to scale the analog output signal (4-20mA or 0-10V).

Display Brightness Adjustment

How to adjust the brightness of the monitor display.

Digital Communications

Settings for ASCII RS232/RS485 communication interface.

Pressure Compensation

How to enable pressure compensation for ppm readings.

Using a Pressure Transducer

Steps to configure the monitor for pressure transducer input.

Manual Pressure Input Calibration

Guide to manually calibrating the pressure input channel.

Automatic Pressure Input Calibration

Procedure for calibrating pressure input using a 4-20mA source.

Using a Fixed Pressure Input in Single Channel Mode

Manually entering pressure values for compensated ppm readings.

OPERATION - TRANSMITTER

Sampling Hints

Provides advice on obtaining representative gas samples.

MAINTENANCE

Calibration

Routine calibration requirements and services offered.

Transmitter Guard Replacement

Instructions for replacing the HDPE or stainless steel sensor guard.

Bonded Seal

Information on obtaining replacement bonded seals.

APPENDIX A

Monitor Specifications

Detailed technical specifications for the Cermet II monitor.

Transmitter Specifications

Detailed technical specifications for the Cermet II transmitter.

APPENDIX B

Setup Codes

Explains configuration codes for various functions and settings.

APPENDIX C

Register Settings Accessible by Digital Communication

Lists register numbers and their functions for digital communication.

APPENDIX D

EU Declaration of Conformity

States compliance with relevant EU directives and standards.

APPENDIX E

Pressure Equipment Directive (PED) 97/23/EC

Details compliance with the Pressure Equipment Directive.

Recycling Policy

Information on the company's commitment to recycling.

WEEE Compliance

Explains compliance with the Waste Electronic and Electrical Equipment Directive.

RoHS2 Compliance

Details compliance with the Restriction of Hazardous Substances Directive.

Warranty

Outlines the terms and duration of the product warranty.

REACH Compliance

Information regarding compliance with REACH chemical regulations.

Return Policy

Procedure for returning instruments for service or repair.

Calibration Facilities

Information on the company's calibration services and traceability.

Manufacturing Quality

Details the company's quality assurance standards and certifications.

FCC (EMC Rquirements for North America)

Compliance information for FCC and Canadian radio interference regulations.

APPENDIX F

Return Document & Decontamination Declaration

Form for documenting instrument returns and decontamination status.

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