Ronan Engineering X96S Stücklistenhandbuch
Instructions
and
Operating Manual
X96S
WEIGH SCALE
60%
Ronan Engineering
Main Menu
Variables
Status Display
Configuration
Digital Outputs
Digital Inputs
Auto Cal
Calibration
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Table of Contents
OVERVIEW.........................................................................................................................1
Advantages.................................................................... 1
Gamma's Advantages..................................................................................................................................................... 1
X96S Advantages........................................................................................................................................................... 1
BASIC CONCEPTS ............................................................................................................2
Communications................................................................ 2
4-20 MA......................................................................................................................................................................... 2
HART............................................................................................................................................................................. 2
Variables..................................................................... 2
Communication Variables.............................................................................................................................................. 2
Device Variables............................................................................................................................................................ 2
Configuration Variables................................................................................................................................................. 3
THEORY .............................................................................................................................4
Theory of Radiation Gaging.................................................... 4
Principles of Operation....................................................... 5
PASSWORD.......................................................................................................................6
MENUS/OPERATION.........................................................................................................7
Menu Trees.................................................................... 7
Root Menu.................................................................... 12
Variables Menu............................................................................................................................................................ 12
Variable Mapping Menu .......................................................................................................................................... 12
Displays Menu ............................................................................................................................................................. 13
Status Display Menu .................................................................................................................................................... 13
Configuration Menu..................................................................................................................................................... 14
Operation Menu ....................................................................................................................................................... 14
Filtering Menu ..................................................................................................................................................... 15
Linearization Menu .............................................................................................................................................. 16
Config Linearize Menu .................................................................................................................................... 16
Scan Time Menu .................................................................................................................................................. 16
Rate Menu................................................................................................................................................................ 17
Weight Menu ........................................................................................................................................................... 18
Speed Menu ............................................................................................................................................................. 18
Head Temp Config Menu......................................................................................................................................... 19
Display Totalizer Menu ........................................................................................................................................... 19
Remote Totalizer Menu ........................................................................................................................................... 20
PD Counter Menu .................................................................................................................................................... 20
Alarms...................................................................................................................................................................... 21
Auto Reference Menu .............................................................................................................................................. 21
Hardware Menu ....................................................................................................................................................... 22
System Hardware Menu........................................................................................................................................... 22
Source Type Menu ................................................................................................................................................... 23
Usr Def Source Menu .......................................................................................................................................... 23
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Speed Hardware Menu............................................................................................................................................. 23
Analog Out Cnfg Menu............................................................................................................................................ 24
HART Menu ............................................................................................................................................................ 24
System Menu ........................................................................................................................................................... 24
Digital Outputs Menu......................................................... 25
Digital Inputs Menu.......................................................... 26
Input Menus ................................................................................................................................................................. 26
Calibration Menu............................................................. 27
Ref Constants Menu..................................................................................................................................................... 27
Calibrate Menu............................................................................................................................................................. 28
Low Reference (Calibrate) Menu............................................................................................................................. 28
High Calibrate (Calibrate) Menu ............................................................................................................................. 28
Cal Speed Menu........................................................................................................................................................... 28
Low Reference (Cal Speed) Menu ........................................................................................................................... 28
High Calibrate (Cal Speed) Menu............................................................................................................................ 29
Manual Entry (Cal Speed) Menu ............................................................................................................................. 29
Loop Config Menu....................................................................................................................................................... 29
Aux Loop Cfg Menu.................................................................................................................................................... 30
X96S LOCAL DISPLAY ...................................................................................................31
Navigating Menus............................................................. 31
Editing Values............................................................... 32
Editing Fixed Point Numbers....................................................................................................................................... 32
Editing Floating Point Numbers................................................................................................................................... 32
Editing Text Strings ..................................................................................................................................................... 32
Editing Enumerated Values ......................................................................................................................................... 32
X96 Local Display Vs 275 Calibrator.......................................... 32
SOURCE INSPECTION AND INSTALLATION................................................................33
Safety Precautions........................................................... 33
Mechanical Mounting.......................................................... 34
Electrical Installation of Interconnect Wiring............................... 35
Microprocessor Verification.................................................. 36
Identification / Documentation .................................................................................................................................... 36
Power-up..................................................................... 37
PASSWORD.....................................................................................................................38
CALIBRATION .................................................................................................................39
Speed Low and High Calibration............................................... 39
Low Speed Reference .................................................................................................................................................. 39
High Speed Calibration................................................................................................................................................ 40
Speed Calibration with Line Down Contact ................................................................................................................ 41
Mass Density Low/Reference and High/Calibration.............................. 42
Low Reference ............................................................................................................................................................. 42
High Calibrate.............................................................................................................................................................. 43
Zero the totalizer ...................................................................................................................................................... 43
Pass a known amount of process through the Ronan X96S Weigh Scale........................................................43
Calculate the new L.F. (Loading Factor) and input the value into the X96S ................................................... 44
CONFIGURATION............................................................................................................48
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DETECTOR ......................................................................................................................49
Scintillator Detector........................................................ 49
ION Chamber.................................................................. 51
ELECTRONICS ................................................................................................................55
X96-2001PL................................................................... 55
X96-2002PL................................................................... 55
X96-2003PL................................................................... 55
X96-2004PL................................................................... 55
X96-2007PL................................................................... 55
X96-2008PL................................................................... 56
X96-2009PL................................................................... 56
OPTIONS..........................................................................................................................57
X96S Mechanical Chassis Part Numbers......................................... 57
X96S Electronic Module Part Numbers.......................................... 57
REGULATIONS................................................................................................................59
DRAWINGS ......................................................................................................................60
1
Overview
The X96S is a family of measurement products that is intended to replace the current X96N and X99 product families. These
products:
•use nuclear measurement techniques,
•support all features of the current X96N and X99 products,
•support up to 32 scintillation or ionization detectors,
•optional HART interface,
•improved user interface options1,
•more user functionality, and
•more product flexibility.
Advantages
•Non-Contact Measurement
•Displays in Customer Units
•Most Applications can be solved with low-energy sources
•Not affected by:
-extreme temperatures
-caustic processes
-sterile processes
Gamma's Advantages
•Mounts external to the conveyor (no components exposed to process material)
•Not affected by changing belt tension
•Does not make material radioactive
•Does not change the material
•Can be shielded by lead
X96S Advantages
•HART Communications
•Identical interface on local display as via HART
•Blind transmitter in detector on self contained design
•Custom configuration of display
•Surface, panel or rack mount available
•Field mountable
•Push button calibration
1This includes the ability to have a simple or complex user interface, a remote user interface, or even no user interface.
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Basic Concepts
Communications
The Ronan X96S Weigh Scale provides both 4-20 mA current loop and HART communications.
4-20 MA
For many years, the field communication standard for process automation equipment has been a 4-20 mA current loop signal. The
current varies in proportion to the process variable being represented. In typical applications, a signal of 4mA will correspond to
the lower limit (0%) of the calibrated range and 20mA will correspond to the upper limit (100%) of the calibrated range. Thus, if
the system is calibrated for 0 to 4 pound per foot, then an analog current of 12mA (50% of range) will correspond to a weight of 2
pounds per foot.
HART
HARTField Communications Protocol extends the 4-20mA current loop standard to enhance communication with smart field
instruments. The HART protocol was designed specifically for use with intelligent measurement and control instruments which
traditionally communicate using 4-20mA analog signals. HART preserves the 4-20mA signal and enables two-way digital
communications to occur without disturbing the integrity of the 4-20mA signal. Unlike other digital communication technologies,
the HART protocol maintains compatibility with existing 4-20mA systems, and in doing so, provides users with a backward
compatible solution. HART Communication Protocol is well established as the "de facto" industry standard for digitally enhanced
4-20mA field communication.
The enhanced communications capability of intelligent field instruments employing the HART protocol, offers significantly
greater functionality and improved performance over traditional 4-20mA analog devices. The HART protocol permits the process
variable to continue to be transmitted by the 4-20mA analog signal and additional information pertaining to other variables,
parameters, device configuration, calibration, and device diagnostics to be transmitted digitally at the same time. Thus, a wealth
of additional information related to plant operation is available to central control or monitoring systems through HART
communications.
Variables
There are three types of variables, communications variables, device variables and configuration variables.
Communication Variables
HART defines four communication variables, PV (Primary Variable), SV (Secondary Variable), TV (Tertiary), and QV
(Quaternary). PV is assigned to the primary 4-20 ma loop . HART is also communicated over this loop. SV is assigned to an
optional secondary 4-20 ma loop.
Device Variables
The Ronan X96S Weigh scale has 4 device variables:
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Device Variable Value
Rate Rate
Weight Weight
Speed Speed
Head Temp Head Temperature
Configuration Variables
The Ronan X96S Weigh scale has many configuration variables that are accessed through its menus.
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Theory
Theory of Radiation Gaging
Radiation gages operate on the principle of radiation absorption and transmission.
A beam of gamma radiation is directed from the source holder, through the process material and the belt, and onto the surface of
the detector.
Radiation which is not absorbed by the material through which it passes, is transmitted to the surface of the detector.
Process measurement is possible because the amount of radiation absorbed and transmitted is predictable.
The absorbed radiation is directly related to the weight of process material in/on the conveyor while the transmitted radiation is
inversely related to the weight of process material on the belt.
Therefore, an increased process weight results in a decrease of transmitted radiation.
Since the radiation that's not being absorbed is being transmitted, the process weight can be inferred by measuring the amount of
radiation reaching the detector at any point in time. The detector's output signal, in counts, also varies inversely to the process
weight.
When the process weight is low the detector is exposed to a maximum amount of radiation which produces a HIGH output of
counts. When the process weight is high the process material "shields" the detector and prevents radiation from reaching the
detector, producing a LOW output of counts.
The X96S Microprocessor converts the detector signal to user's measurement units of weight: lb/ft, oz/ft, kg/m, g/mt, and rate:
STon/h, Lton/h, lb/min, oz/min, MetTon/h, kg/h, kg/min.
The X96S displays the output measurement range in the selected user units. The "zero" of the measurement range represents the
lowest weight of interest, while the "span" of the measurement range represents the highest weight of interest.
Reduction of the signal "noise" due to radiation statistics is handled in the stage of signal processing known as digital filtering.
Digital filtering is a form of statistical averaging used to smooth, or dampen, random radiation as well as process-related noise.
Increasing the digital filter’s “time constant” decreases signal noise.
Dynamic tracking permits the gage response to temporarily by-pass the digital filter. This is helpful in some processes where
sudden or drastic step changes in process must be observed in their true, or unfiltered, state.
Software also compensates for the decay of the radioactive source activity. On-going adjustments are made automatically for the
rate of decay, or source half-life.
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Principles of Operation
The detector's raw output signal is processed through several stages of software in the X96S.
Some of the more significant stages of signal processing are:
•Units Conversion – conversion of counts into user-selected weight units
•Measurement Range – 4-20 mA output defined by the user-selected range in user-selected units.
•Digital Filtering – signal smoothing to reduce statistical radiation noise
•Dynamic Tracking – quick gage response to quick process changes.
•Source Decay Compensation – automatic compensation for the radioisotope decay
•Calibration (Referencing) – calibration of gage to user process.
The Calibration (and Referencing) procedure relates detector output (in counts) to numeric values that accurately represent the
actual process weight.
The weight algorithm (or curve) used by the X96S software is a logrithmic function. That is, the relationship between the
detector output and the process mass denisty is mathematically expressed as:
a
uTIc
Io
LnRRc××+= )
1
()(
0
Where:
R
o= Reference weight with empty conveyor
R
c= Current weight on the conveyor
I
o= Detector signal with empty conveyor
I
c= Current detector signal with material on the conveyor
a = Width of the conveyor in units of feet (or meter)
uT = Mass absorption coefficient, which for Cs-137 approximately equals 0.04 ft2/lb or (0.008 M2/kg)
Ln = Natural Log
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Password
Notice:
To access the Programming Menu, the Password is 101010.
Step 1: Power Up – You should now be on the Status Screen.
Step 2: Press F3 to go back.
Step 3: Now enter the password. (All digits are set at 000000 at this point.)
Press to get the digit to be # one
Press 2 times (The third digit should be highlighted.)
Press to get the digit to be # one
Press 2 times (The fifth digit should be highlighted.)
Press to get the digit to be # one
Press F4 (enter)
Note: If the wrong password was entered, press F1 (ALL0) to set all the digits to the number 0 and
you can begin re-entering the password from the beginning. Pressing F2 (RST0) will set the
individual digit that is highlighted back to the number 0.
Note: For security reasons, each digit will always be displayed as an asterisk.
Andere Handbücher für X96S
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