Instruction Manual Smart Bell Combustion Check 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 Setting Inlet Temperature................................................................. 1 Analyzer Connections..................................................................... 1,2 Overview.............................................................................................. 2 Maintenance General Maintenance........................................
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 (cont.) WARNING! The probe will be hot from flue gases. Remove the probe from the flue and allow it to cool naturally. Do not immerse the probe in water, as this will be drawn into the analyzer and damage the pump and sensors. Once the probe is removed from the flue and the readings have returned to ambient levels rotate the selector to “OFF”and switch off the analyzer. The instrument will count down from 30 to switch off.
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™ 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) ............................. <100ppm Gas Fired Power Burners • • • • • Oxygen .........................................
METER PROBLEM SOLVING If any problems are not solved with these solutions, contact us or an authorized repair center. Fault symptom Causes / Solutions 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.
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 hydrogen in the air. Our atmosphere is 20.9% oxygen with the remaining 79.1% nitrogen. This is nearly as desirable as the example for ideal combustion with the only added loss being the heat that is carried away from your target with the nitrogen. Because nitrogen isn’t part of the combustion process, it enters the combustion chamber at the inlet temperature and leaves with some of the heat created by the combustion.
form SO2. There would be no additional air to carry heat away from the fire, and no undesirable byproducts would be created. In practice this isn’t possible due to the inability to completely mix the fuel and air, so an additional amount of air is used to completely burn the fuel. The chart in figure 4 illustrates the relationship between the main flue gas components that provide an indication of the performance of the combustion process.
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 – 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 “ZeRO” – Analyzer is performing the initial zero setting CO2 (Carbon Dioxide) – Direct reading of the carbon dioxide sensor displayed in percentage (%) Eff (Efficiciency) – Calculated combustion (not appliance) efficiency based on measurements of CO2, Flue Temperature and fuel selected. The SmartBell calculates gross combustion efficiency and automatically determines if the combustion is in the condensing mode to make appropriate corrections.
METER SPECIFICATIONS (NOTE MAY BE SUBJECT TO CHANGE) Parameter Resolution Accuracy Range Temp Measurement Flue Temperature 1.0 ˚F ±(2% rdg + 3.6˚F) ±(2% rdg + 2˚C) 32-1112 ˚F (0-600˚C) Temp (Nett) *2 1.0 ˚F ±5 ˚F (2˚C) ±0.3% reading 32-1112 ˚F (0-600˚C) Gas Measurement Carbon Dioxide *1 0.1% ±0.3% 0-30% Efficiency *2 0.1% ±1.0% reading 0-99.9% Excess Air *3 0.1% ±0.2% 0-250% Pre-programmed Fuels Natural gas, Light Oil, Propane, Wood, heavy oil.
SmartBell Combustion Meter™ Limited Warranty The SmartBell Combustion Meter is warranted to be free from defects in materials and workmanship for a period of three years (two years on sensors) 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.
