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Emerson PN-51-T56 instruction manual 0 Maintenance, Overview, Sensor, Cleaning the sensor

Models: PN-51-T56

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Section 8.0 Maintenance

Instruction Manual	Clarity II T56
PN-51-T56	May 2012

Section 8.0 Maintenance

8.1Overview

The 56 Analyzer used in the Clarity II turbidimeter needs little routine maintenance. Clean the analyzer case and front panel by wiping it with a clean soft cloth dampened with water ONLY. Do not use solvents, like alcohol, that might cause a buildup of static charge.

A few of the components of the analyzer are replaceable. See Tables 8-1 and 8-2.

WARNING

Explosion Hazard. Do not disconnect equipment when a flammable or combustible atmosphere is present.

8.2Sensor

8.2.1Cleaning the sensor

Clean the sensor by rinsing it with water followed by wiping with a soft tissue. If water is inade- quate, wash with a mild detergent solution followed by thorough rinsing with water. Do not scratch the lamp or photodiode windows.

If mineral scale is present, use a dilute acid solution applied with a cotton swab to clean away the deposit. Rinse thoroughly with water.

Do not use abrasive cleaners or solvents.

8.2.2Replacing the lamp/LED board

The USEPA-compliant sensor uses a tungsten filament lamp (PN 1-0901-0004-EPA) as the light source. The lamp has an expected life of about one year. The ISO-compliant version uses an infrared LED (PN 1-0901-0005-ISO). Its expected life is five years. The 56 analyzer continuously monitors the source intensity and corrects for changes in source intensity caused by age. When the source intensity becomes too low, the analyzer warns the user. The user should replace the lamp as soon as possible.

To replace the lamp/LED board:

1. Turn off power to the analyzer.

WARNING

Explosion Hazard. Do not disconnect equipment when a flammable or combustible atmosphere is present.

2. Remove the sensor from the measuring chamber and disconnect the cable.

WARNING

Before removing the sensor, be absolutely certain that the process pressure is reduced to 0 psig and the process temperature is lowered to a safe level!

Maintenance

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Emerson PN-51-T56 instruction manual 0 Maintenance, Overview, Sensor, Cleaning the sensor, Replacing the lamp/LED board

Contents

Clarity II T56 Turbidimeter Clarity II T56 PN-51-T56This page left blank intentionally Clarity II T56 Turbidimeter RISK OF ELECTRICAL SHOCKESSENTIAL INSTRUCTIONS-Read this page before proceeding Clarity II T56About This Document Rev. LevelDate Section 1 Description and Specifications ContentsSection 2 Installation Section 3 WiringSection 8 Maintenance Table of Contents cont’dSection 6 Programming - Turbidity Section 7 Calibration1.1 Features and Applications Section 1 Description and SpecificationsReal time clock back-up 24 hours Hazardous Location Approvals 1.2 Specifications - GeneralSignal board terminal blocks 26-16 AWG wire size Power InputCurrent output connectors 26-16 AWG wire size Alarm relay terminal blocks 24-12 AWG wire sizeAccessories 1.3 Ordering InformationClarity II T56 T56 Turbidity System Components2.2 Installation Section 2.0 - Installation2.1 Unpacking and Inspection 2.2.1 General InformationPANEL MOUNT Fig. 2-1 T56 Panel Mounting Installation dimensionsInstallation Clarity II T56WALL / SURFACE MOUNT Fig. 2-2 T56 Pipe and Wall Mounting Installation dimensions4X COVER SCREW WALL / SURFACE M OUNT PIPE MOUNTTABLE 2-1. Approximate debubbler pressure as a 2.3 Installation - Debubbler Assemblyfunction of flow 0.040 inch outlet orifice psigInstallation Fig. 2-3 Debubbler and Flow ChamberClarity II T56 PN-51-T56Fig. 2-4 Sensor 2.4 Installation - Sensor3.1.1. Removable connectors and signal input boards Section 3.0 Wiring3.1.2. Signal input boards 3.1.4 Alarm relays3.4.1 Power wiring 3.4 Power, Output, and Sensor Connections3.4.2 Current output wiring 3.4.3 Alarm relay wiring3.4.4 Sensor wiring to signal boards 3.4.5 SensorRISK OF ELECTRICAL SHOCK IMPORTANT NOTE Fig. 3-1 Turbidity signal board with plug-in Sensor connection4.1 User Interface Section 4.0 Display and Operation4.2 Instrument Keypad Function keysNavigation Keys 4.3 Main DisplayAlpha-numeric Keypad Process Measurements4.4 Menu System Fault and Warning bannerClarity II T56 PN-51-T56This page left blank intentionally 5.3 Setting a Security Code 5.2 Configuring and Ranging the Current OutputsSection 5.0. Programming the Analyzer - Basics 5.1 General5.4 Security Access 5.5 Using Hold5.6 Resetting Factory Default Settings 5.7 Programming Alarm Relays repeated alarm activation and press ENTER/MENU Section 6.0 Programming - Turbidity 6.1 Programming Measurements - Introduction6.2 Turbidity Measurement Programming Clarity II T56 PN-51-T56This page left blank intentionally Section 7.0 Calibration 7.1 Calibration - Introduction7.2 Turbidity 7.2.2 Standardize Calibration - Turbidity 7.2.1 Slope Calibration - Turbidity7.2.3 Grab Calibration - Turbidity Calibration8.2.1 Cleaning the sensor Section 8.0 MaintenanceDo not use abrasive cleaners or solvents 8.1 OverviewStep Step Step Fig. 8-1 Replacing the Lamp/LED Board8.3.1 Cleaning the sensor 8.3.2 Cleaning the orifice8.3 Debubbler and Measuring Chamber Fig. 3-2 Molded Debubbler Assembly 8.4 List of Replacement PartsClarity II T56 LOCATION IN9.3 Non-Warranty Repair 9.2 Warranty RepairSection 9.0 Return of Material 9.1 GeneralVolume for Volume ofAppendix DilutionRETURN OF MATERIAL WARRANTYClarity II T56 PN-51-T56Certification Clarity II T56 PN-51-T56Certification Clarity II T56 PN-51-T56This page left blank intentionally Clarity II T56 PN-51-T56This page left blank intentionally The right people, the right answers, right now Specifications subject to change without noticeON-LINE ORDERING NOW AVAILABLE ON OUR WEB SITE Emerson Process Management