ABB Advance Optima Uras 14 User manual

Advance Optima
Module Uras 14
Service Manual 43/24-1005-1 EN

SHB_U14 Contents
Table of contents
Page
Chapter 1: Description of functions 1-1
Chapter 2: Module versions 2-1
Chapter 3: Module components 3-1
Chapter 4: Troubleshooting 4-1
Chapter 5: Testing 5-1
Chapter 6: Component replacement 6-1
Chapter 7: Configuration 7-1
Chapter 8: Calibration 8-1
Attachment Parts catalog

Contents SHB_U14
Contents
Chapter 1: Description of functions Page
Physical principle 1-2
Determination of influence values 1-6
Ex Concept 1-7
Chapter 2: Module versions
Summary 2-2
Module versions (principles) 2-5
Module versions ( plastic tubing connections) 2-7
Module versions (stainless steel tubing) 2-12
Ex analyzer module 2-14
Chapter 3: Module components
Emitter 3-2
Modulator 3-3
Apertures 3-6
Sample Cell 3-7
Filter Cell 3-11
Optical Filter 3-12
Calibration Unit 3-13
Calibration Cell 3-15
Infrared detector 3-16
IR module circuit board 3-19
Sensor-CPU circuit board 3-23
Pressure sensor circuit board 3-28
Thermostat circuit board 3-29
Hood with supplement heater 3-30
Connecting cable 3-31
Fortsetzung auf der folgenden Seite

SHB_U14 Contents
Contents,Fortsetzung
Chapter 4: Troubleshooting
Status messages 4-2
No measurement signal 4-4
Unstable measurement value reading 4-5
Zero drift / Measured value drift 4-6
Negative measured signal 4-7
Measurement signal not enough sensitive 4-8
Excessive measurement signal preparation time 4-9
Temperature error 4-10
Continued on next page

Contents SHB_U14
Contents, continued
Chapter 5: Testing Page
Electrical connections 5-2
IR Detector measurement signal 5-4
IR detector preamplifier 5-5
Emitter insert 5-6
Modulator with emitter circuit board 5-7
Sample cell 5-8
Thermostat temperature 5-9
Heater 5-10
Temperature sensor 5-11
Thermal link 5-12
Calibration cell 5-13
Calibration unit 5-14
Pressure sensor 5-15
IR module circuit board 5-16
Sensor –CPU circuit board 5-18
Chapter 6: Component replacement
Summary 6-2
Remove / install Uras14 analyzer module 6-3
Change emitter insert 6-5
Change modulator 6-6
Change sample cell 6-7
Change calibration cell and calibration unit 6-9
Change infrared detector 6-10
Change IR module and Sensor –CPU circuit boards 6-11
Change thermal link 6-12
Fortsetzung auf der folgenden Seite

SHB_U14 Contents
Contents,Fortsetzung
Chapter 7: Configuration
Hardware configuration 7-2
Software configuration with TCT 7-4
General data 7-6
IR detectors 7-8
Temperature detectors 7-31
Pressure detector 7-36
Flow detector 7-40
Calibration cell 7-45
Solenoids 7-46
Pump 7-48
Chapter 8: Calibration
Overview 8-2
Optical Alignment 8-3
Phese Alignment 8-6
Initial Calibration of Uras 14 IR detectors 8-9
Initial Zero Calibration 8-12
Postlinearisation 8-14
Cross-sensitivity alignment 8-17
Delta Phase 8-19
Calibration Cell measurement 8-22
Pressure Detector initial calibration 8-24
Flow detector initial calibration 8-26
Temperature detector initial calibration 8-31
Attachment Parts catalog

SDE_U14 Chapter 1: Description of functions 1-1
Chapter 1: Description of functions
Overview
This chapter ... describes the underlying physical principles and provides information on the
determination of influence values.
˝
Chapter Contents In this chapter you will find the following information:
˝Subject See Page
Physical principle 1-2
Determination of influence values 1-6
Ex Concept 1-7
˝

1-2 Chapter 1: Description of functions SDE_U14
Physical principles
Measurement
principle •NDIR technique (Nondispersive infrared analysis)
•The measurement effect is based on resonance absorption of gas-specific
vibration-rotation bands of differing atom gas molecules in the median infrared
spectrum at wavelengths between 2.5 and 8 µm.
•The individual gases to be measured are identified by their specific absorption
bands. Each gas has such an absorption spectrum (fingerprint).
Exceptions:
- Monoatomic gases, such as inert gases
- Symmetrical gases, such as N2, O2and H2
- These types of gases cannot be measured with this method.
•The relationship between measured infrared radiation absorption and the
measurement component is based on the LAMBERT-BEER law:
A = (I0 - I1) / I0 = 1 - e -ε(λ)⋅ρ⋅l
where
A=Absorption
I0 = Radiation entering the cell
I1 = Radiation leaving the cell
ε(λ) = Sample component extinction factor
ρ= Sample component density
l = Sample cell length
The relationship between sample component density ρand its volumetric
concentration c is
ρ= ρ0⋅c ⋅p/p0⋅T0/T
where
ρ0= Pure gas density
p0= Pressure
T0= Temperature
under standard conditions (1013 hPa, 0°C).
The second equation shows that the sample component's volumetric
concentration depends on the sample cell pressure and temperature.
The first equation finds a non-linear relationship between absorption and
volumetric concentration.
Fortsetzung auf der folgenden Seite