Instruction Manual Smart Bell PLUS Combustion Meter C o m b u s t i o n M a d e E a s y
TABLE OF CONTENTS Getting Started Safety.................................................................................................... 1 SettingTemperature Scale................................................................ 1 Setting Inlet Temperature................................................................. 1 Selecting Fuel...................................................................................... 1 Analyzer Connections..........................................................
Safety Notes OWNERS MANUAL & MAINTENANCE Before using this meter, read all safety information carefully. In this manual the word “WARNING” is used to indicate conditions or actions that may pose physical hazards to the user. The word “CAUTION” is used to indicate conditions or actions that may damage this instrument. WARNING! This analyzer extracts combustion gases that may be toxic in relatively low concentrations. These gases are exhausted from the back of the instrument.
Analyzer Connections NOTE: Take care when inserting the temperature probes as the pins are polarized. Insert with the smaller pin into input marked positive. (+) WARNING! Turning the pump off while the probe is in the flue will leave toxic gases inside the analyzer. Once data has been read, it is advisable to purge the unit with fresh air as soon as possible. To do this, with the probe removed from the flue, turn ON the pump. Always allow the readings to return to zero (0.
General Maintenance • Check calibration of your instrument annually to ensure it meets original performance specifications • Keep your instrument dry. If it gets wet, wipe dry immediately. Liquids can degrade electronic circuits • Whenever practical, keep the instrument away from dust and dirt that can cause premature wear • Although your instrument is built to withstand the rigors of daily use, it can be damaged by severe impacts.
Batteries Replacement This meter has been designed for use with alkaline batteries. No other types are recommended. The analyzer is supplied with 4 “AA” size alkaline batteries. These should be installed into the instrument as shown in the diagram to the right and indicated on the back of the unit. CAUTION! Note: Follow battery directions on back of housing Back of Instrument Battery Compartment Take great care when installing the batteries to observe correct polarity.
WHY TEST WITH SmartBell PLUS™ Verify Proper Operation Of Combustion Equipment • To verify that equipment is operating as the manufacture designed it to work.
WHAT RESULTS ARE GENERALLY ACCEPTABLE Atmospheric Gas Fired Burners • • • • Oxygen .....................................................................................................6.8 to 7.9% O2 Stack Temperature ................................................................................. 325 to 500°F Draft (Water Column Inches).................................................................. -.02 to -.04wc” Carbon Monoxide (parts per million) ........................................
Introduction COMBUSTION BASICS UEi combustion analyzers provide real time data that provides information on the condition of the combustion process of your equipment. This information is needed for proper setup and maintenance to verify proper operation. Benefits of combustion analysis are to increase efficiency thus reducing fuel costs, verification of proper combustion to reduce future problems, and to check for safe operation.
Near Ideal Combustion This is When we burn pure hydroin the air. Our atmosphere is 20.9% oxygen the remaining 79.1% nitrogen. gen with This is nearly as desirable as the example for combustion with the only added loss being heat that is carried away from your target the nitrogen.
Perfect Combustion The term perfect combustion is also called stoichiometric combustion. This is the point where all of the fuel is burned with all the oxygen, leaving no undesirable byproducts. At this point all of the hydrogen in the fuel (H2) would combine with oxygen to form H2O, all of the carbon (C) would combine to form CO2, and all of the sulfur (S) would form SO2. There would be no additional air to carry heat away from the fire, and no undesirable byproducts would be created.
Other Important Factors Relating To Combustion • The three T’s of combustion – Time • Amount of time that the fuel and oxygen are together in the combustion chamber and hot gases are in the heat exchanger – Temperature • How high the temperature is determines the rate of oxidation, or speed of the combustion – Turbulence • How well the fuel and air are mixed • These three factors are all interrelated, and will move your results along the combustion curves.
GLOSSARY Selector and Display Parameters On UEi SmartBell PLUS “ZeRO” – Analyzer is performing the initial zero setting CO (Carbon Monoxide) – Direct reading of the carbon dioxide sensor displayed in parts per million (ppm) CO2 (Carbon Dioxide) – Direct reading of the carbon monoxide sensor displayed in percentage (%) O2 (Oxygen) – O2 is calculated for each fuel type from the CO2 measurement. It assumes that the combustion process is running fuel lean.
METER PROBLEM SOLVING If any problems are not solved with these solutions, contact us or an authorized repair center. Fault symptom Causes / Solutions CO or CO2 too low • Air leaking into probe, tubing, water trap or connectors. CO2 reading (- - - -) • Meter was stored in a cold environment and is not at normal working temperature. Batteries not holding charge • Batteries exhausted. Meter does not respond to flue gas • Particle filter blocked. • Probe or tubing blocked.
METER SPECIFICATIONS (NOTE MAY BE SUBJECT TO CHANGE) Parameter Resolution Accuracy Range Gas Measurement Carbon Monoxide *1 1ppm ±5ppm <100ppm 0-1999ppm ±5% rdg >100ppm Carbon Dioxide *1 0.1% ±0.3% 0-30% Oxygen *2 0.1% ±0.3% reading 0-21% Efficiency *2 0.1% ±1.0% reading 0-99.9% Excess Air *3 0.1% ±0.2% 0-250% Calculations Temp Measurement Flue Temperature 1.0 ˚F ±(2% rdg + 3.
SmartBell PLUS Combustion Meter™ Limited Warranty The SmartBell PLUS Combustion Meter is warranted to be free from defects in materials and workmanship for a period of five years (10 year sensor life expectancy) from the date of purchase. If within the warranty period your instrument should become inoperative from such defects, the unit will be repaired or replaced at UEi’s option.
