Measuring head peripheral equipment Rails Rack and rack mounting plate Hanger Hanger rails Test samples X-ray/shutter warning lamps 1 set (red/green) Piping parts Air filter Strainer Reducing valve (for air) Reducing valve (for nitrogen) Nitrogen escape valve Nitrogen cylinder Air dryer Cooling water supply unit Oil mist separator Flow rate gage (for cooling water) Pressure switch (for air) Pressure switch (for nitrogen) Valve stand Interface (for PI/O interface with purchaser's PC) Indicator/recorder Wide angle indicator (110) Recorder (hybrid-type) Cabinet (houses control panel, recorder, etc.) Cables Various types Hoses Various types Accessories Maintenance PC Operation-PC printer
No. EJD-069
2
Measuring head peripheral equipment X-ray/shutter warning lamp Limit switches Documents Contract Specifications 5 copies Contract Drawings 5 copies Test Report 5 copies Operation Manual (including maintenance) 5 copies Schematic Diagram 5 copies
Operating Principle
When the X-rays emitted from the X-ray generator pass through the material being measured, they are scattered and absorbed by that material. The X-rays that pass through the material are received by the detector (ionization chamber) and are converted into electrical signals (ionization current) proportional to the quantity of X-rays. These signals are subjected to A/D conversion at the integrated A/D converter before being sent to the microcomputer by the highspeed serial interface. At the equipment cabinet, these signals are calculated by the microcomputer and then output as thickness signals.
Integrated A/D converter Thickness gage Deviation output Detector Calibration curve
Measured material Standard changer Calibration information
Setting
X-ray generator
Figure 2
Operating Principle
Measurement Method The TOSGAGE-7525 is a single-beam thickness gage that uses previously calibrated standard plates to create and store a calibration curve throughout the entire measurement range. The signals detected for the X-rays that have passed through the measuring material during measurements are applied to the calibration curve to derive the thickness.
No. EJD-069 3
As shown in the sample calibration curve shown below (Figure 3), the measurement range is divided into several individual measurement ranges. The calibration curve is expressed as a combination of the individual calibration curves in each measurement range.
memory. During measurement, the detector output is read in and then the thickness is calculated from the stored calibration curve and output in the form of analog or digital signal. The microcomputer has a state-of-the-art 32-bit microprocessor for high-speed calculations.
Specifications
Detector output
General Specifications
Measured materials: Mild steel strip Measurement range: 1.00 to 16.00mm (0.85 to 17.92mm pure steel equivalent) Range for setting compensation: 15.00% (based on pure steel) Setting accuracy: SQRT [(linearity)2 + (reproducibility)2 + (noise)2] This is the accuracy when a test sample for accuracy test is used offline. Measuring air gap height of 750mm and time constant of 30ms. Linearity: Max. 0.1% of set thickness (2) Reproducibility: Max. 0.05% of set thickness or 0.05m, whichever is greater (2) Noise:
Thickness(mm) 1 to 7.99 8 to 13.99 14 to 15.99 Noise(%) Max. Max. Max. 0.12% 0.20% 0.24% (1.65 )
Range 0 Range 1 Range 2 Range 3 Range 4 Range 5
Range N
Thickness Figure 3 Calibration Curve
The X-ray generator, detector and other electrical circuits on the X-ray thickness gage are subject to drift as time passes, so the gage must be calibrated at periodical intervals. Two calibration methods are used for this purpose: Full calibration (in which all calibration curves in the entire measurement range are recreated) and Calibration (in which the calibration curve in only one measurement range is recreated). Full calibration requires about two minutes and calibration requires about five seconds. This combination of two calibration methods is a unique Toshiba innovation unlike the methods used by any other company. As the calibration curve is created by predetermined calibration points, Full calibration can be performed regardless of settings. Using these two calibration methods, it is possible to, for example, perform Full calibration two to three times daily to maintain the measurement accuracy in the measurement range, and perform calibration near the nominal thickness during the short period of time when no strip is present in the X-ray beam (such as during coil changing, etc.) to eliminate drift. This allows setup to be performed with great precision when the strip is present in the X-ray beam. When the calibration curve is created, standard plates are automatically inserted, the detector output is read in and the calibration data is calculated and stored in the microcomputer
No. EJD-069
Drift: Max. (0.2% of set thickness + 0.5m)/8h Measuring head Changes in air density to max. cooling water temperature variations 3C and max. temperature variations around measuring head 5C are not included. Max. temperature variations around equipment cabinet/driving control box 5C. Response time: Max. 30ms (response 63% when thickness of 2mm is changed in 100m increments) Calculation period: 10ms Calibration time: For full calibration Max. 150s For calibration Max. 5s For setup Max. 20ms
4
(Does not include writing time for settings, however) Warm-up time: 1 hour or less from cold start (Time taken for measuring to become possible after switching the power from OFF to ON) 0.5 hour or less from X-ray ON (Time taken for measuring to become possible after switching the X-ray from OFF to ON) Measuring air gap:
X-ray beam center Depth 2500
For operation-PC 100V AC 10%, 50/60Hz, 1kVA single phase Cooling water: Pure water or tap water passed through a 40 mesh filter Pressure: 0.2 to 0.5Mpa Flowrate: 10litter/min Temperature: 25C 10C (however, change in water temperature in one day shall be 3 max.) Tap water or filtrated industrial water Pressure: 0.2 to 0.5Mpa Flowrate: 30litter/min Temperature: 25C 10C Air:
Pass line
Edges of measured material: Measurement of X-rays received by detector (Edge) Measurement Method Plate edge measurement accuracy: Max. 1mm (Max. 100mm/s for carriage speed) Carriage drive system: Inverter speed control (Standard is 2-level selection: 30 and 100mm/s) Carriage position measuring accuracy (Reproducibility): Max. 1mm Allowable ambient temperature: Measuring head Designed to be suitable for strip temperature 1200C. Equipment cabinet/driving control box 0 to 40C (no condensation) Operation-PC 5 to 35C (no condensation) Power: For main unit (instrument) 200V AC 10%, 50/60Hz, 2kVA single phase (100V AC can also be supported by an optional transformer) For motorized carriage 200V AC 10%, 50/60Hz, 1kVA single phase
Purified air containing no oil mist, that has been passed through a 10m filter Pressure: Approximately 0.6 to 0.7Mpa 3 Flowrate: 1.5m [normal]/min Temperature: 25C 10C Nitrogen gas: Pressure: Approximately 0.02Mpa Purity: 99.99% min. Cables: Total length from measuring head to driving control box to equipment cabinet is 150m max. Ground: Less than 10 for circuit Less than 100 for safety Radiation leakage: Max. 2.5SV/h at surface of X-ray generator cover with shutter closed Color: Toshiba standard paint color Measuring head Heat-resistant paint (gray) Equipment cabinet Munsell 5Y7/1 Operation-PC Manufacturer's standard color Automatic voltage regulator Munsell 5Y7/1 Driving control box Munsell 5Y7/1 Indicator frame Munsell N1.5 Recorder frame Manufacturer's standard color Others Manufacturer's standard color
No. EJD-069 5
Functional Specifications
Item Setting location (Thickness setting, compensation setting, calibration, setup instruction, etc.) Settings Thickness setting Standard Specifications Operation-PC Special Order Specifications Purchaser's computer Equipment cabinet (maintenancePC) Remarks
7 digits
.
mm
Compensation setting
4 digits with sign . (%)
6 to 9 digits . to . mm Code compensation Setting range 0 to 999
Up to 9 digits can be set .
mm
Code compensation consists of one of the following two types:
(code) (compensation 1) (compensation 2)
Material code Steel type code Offgage setting
2 digits 2 digits 3 bands 5 bands m setting ( % setting ( . % setting ( .
20 +15% -15% 500 0% 0% 980 -15% +15% Select either one of material code or steel type code
%) %)
m)
Strip width Coil no. Coil weight Coil length Pass angle compensation Preset value Calibration/Setup instruction
Max. 5 digits
. mm Max. 16 digits (letters and numbers) None None
Max. 6 digits ( Max. 6 digits ( 1 type; angle fixed Up to 16 passes
.
kg) m)
No compensation (pass angle 0) None
External (operation-PC) External (purchaser's computer) Full calibration Full calibration Calibration (Setup + range calibration) Calibration Setup Setup Equipment cabinet (maintenance-PC) None 2-step changing by purchaser's computer Automatic changing (according to thickness setting) Set to any value on purchaser's computer Automatic changing (according to thickness setting) Set to any value on purchaser's computer 2-step changing by purchaser's computer Automatic changing (according to thickness setting) Set to any value on operation-PC Set to any value on purchaser's computer 1% unit 1ms unit 1m unit
Deviation range selection
Deviation range value Time constant selection Time constant value % deviation range selection
Set to any value on operation-PC 0.01 second Set to any value on operation-PC None
% deviation range value
None
No. EJD-069 6
Output Specifications
1.
Item
Standard Specifications
Standard Specifications Special Order Specifications Remarks
Analog deviation output (m or %) For control 1 insulated output (AGC/purchaser's computer, etc.) 4 to 20 mA/maximum deviation range Gage healthy (HEL) output AND conditions shown below: X-ray ON Shutter open Not test mode Not initial mode Automatic mode Open collector output Self-diagnostics Displayed on operation-PC
For control 10V/ max. deviation range For indicator/for recorder 10V/ each deviation range AND conditions for standard specifications and user specifications
Printer output from operation-PC
2.
Optional Specifications
PI/O input and output in addition to the standard specifications listed above is possible by installing an interface with an optional configuration.
Item Standard Specifications Special Order Specifications Remarks
Settings Thickness Compensation Strip width Self-diagnostics
BCD 1 system Open collector Maximum load 24V DC, 50mA (1) Status output * Abnormal * Warning Open collector Maximum load 24V DC, 50mA None
Digital deviation output
Digital absolute output
None
BCD 1 system No-voltage relay contact Maximum load 48V DC, 0.1A (1) Code output BCD 3 digits (2) Status output * Unmeasurable * Full calibration request Both (1) and (2) open colletor or no-voltage relay contact 14-bit binary output with +/- sign 16000 maximum deviation range Open collector output Maximum load 24V DC, 50mA Max. 6 digits . mm Open collector output Maximum load 24V DC, 50mA
Output period 0.01 second
Output period 1 second Can be changed in 0.01 second increments
No. EJD-069 7
Profile Measurement Specifications
1.
Item Full-width profile scanning
Measurement Mode
Scanning Pattern Line flow direction
WS
Standard Specifications In this mode the carriage is made to scan in a strip width direction by a start profile measurement command, thereby measuring the whole width profile. The speed of the carriage is 30mm/s on both edges, and 100mm/s at the center. In this mode the carriage is made to scan in a strip width direction by a start profile measurement command, thereby measuring the edge profile. WS (or DS) edge distance is set beforehand from the customer's computer. This mode measures the center of the strip continuously in a longitudinal direction. It is used as backup for AGC thickness gages (center measurement).
DS
Edge profile scanning
Edge distance
WS
DS
Center measurement
WS
DS
2.
Data Processing
The profile data processing shown below is carried out, and it is displayed on the operation-PC.
Line center Note: a. Edge distance settings i', i'', and j', j'' are the same. b. i can be set from 5 to 50mm (i can be set at 5 locations) c. j can be set from 50 to 100mm (edge drop standard) d. i < j (in these specifications the initial settings are i = 25mm, j = 75mm.)
' '
'
'
''
'' ''
''
'
''
Figure 4
Section in Strip Width Direction
1) Crown Value Crown value, WS crown value, DS crown value are calculated from the measurements of center plate thickness, WS side specified measurement points and DS side specified measurement points. Crown values are calculated as follows: a) Crown value: chi = hc- (hi' + hi'')/2 b) WS crown value: chi' = hc-hi' c) DS crown value: chi' = hc-hi'' 2) Wedge Value Wedge value is calculated from the measured thickness at WS side specified measurement points and DS side specified measurement points. The formula for calculation is shown below. Whi = hi'' - hi'
No. EJD-069 8
3) Edge Drop Amount Edge drop amount is calculated from the measured width between two points specified on the WS side and DS side. Calculations are made as follows. a) WS edge drop amount: eh' = hj' - hi' b) DS edge drop amount: eh'' = hj'' - hi''
Example of Display on Operation-PC Screen
Figure 5
Thickness Deviation Trend Screen
Figure 6
Thickness Deviation Profile Screen No. EJD-069 9
External Dimensions
Guide roller
X-ray beam center Detector Maintenance cover Maintenance cover Cable duct Balance center of gravity Air nozzle
Drive unit Pinion module for driving: 5 P.C.D: 130 Note: 1. 2. 3. 4. Striker (for limit switch) (can be mounted on either left or right side) Position detection Maintenance mechanism cover Standard changer X-ray generator
Total weight of measuring head: Approximately 2000kg Scanning speed of measuring head: 1.8 to 18m/min Paint color of measuring head: See specifications For dimensions of H in the diagram see specifications.
Figure 7
External Dimensions of Measuring Head (unit: mm)
4-16 hole (mounting hole)
Cable lead-in hole Weight: approximately 250kg
Cable lead-in hole
Figure 8
External Dimensions of Equipment Cabinet (unit: mm)
Figure 9
External Dimensions of Operation-PC (unit: mm)
No. EJD-069 10
PF3/4 cable lead-in hole 4-6 mounting hole
Glass cover
2-20 Cable lead-in hole
Guard
4-10 hole (mounting hole)
Figure 10
External Dimensions of Automatic Voltage Regulator (unit: mm) Figure 12
Applicable lamp 110V AC, 40W
External Dimensions of Warning Lamp (unit: mm)
Model - R-19 Applicable fluid - Water Material - Gun metal Pressure resistance - 1.5MPa Pressure setting - 0.25MPa Discharge side (PT1/2) Top view (from A to A above) (door opening/closing) Weight: approximately 70kg Approximately 100 Pressurizing side (PT1/2)
Figure 11
External Dimensions of Driving Control Box (unit: mm)
Figure 13
External Dimensions of Safety Valve (Unit: mm)
No. EJD-069 11
22 hole
Conduit plug
Movement after operation
Operating Movement after Operating angle operation angle
Guard ring (mounted after purchase)
Pipe connection PT3/4 or PT1
Circuit diagram P. no. 001 002 Model no. FS5-J-3/4 FS5-J-1 Connection port dia. PT3/4 PT1 Switch SPDT (1) microswitch 2 circuit double breaking
4-5.2 mounting hole rear M6 x 1 depth 14 3
Max. operating pressure: 1.03MPa Max. operating temperature: 120C Material of parts contacting fluids: Chrome yellow, carbon, ethylenepropylene rubber Fluid: Water (acid, alkaline or oils cannot be used) Weight: 1.7kg Color: Black wrinkle finish
Figure 15
External Dimensions of Limit Switch (unit: mm)
Figure 14
External Dimensions of Flow Switch (unit: mm)
*1 *2
Cooling water (Tap water) Pressure: 0.2 to 0.5MPa Flow rate: Approximately 10litter/min Temperature: 25 10C Backwater Back pressure: max. 0.05MPa
NO. Name
Open: 0.25MPa 1/2" hose Closed: 0.22MPa X-ray generator
Remarks
1 2 3
Strainer Single entry safety valve Air reducing valve Air filter Flow switch Mist separator Air dryer Solenoid valve Strainer Air reducing valve Pressure escape valve Nitrogen reducing valve Nitrogen cylinder
*3
Screen mesh: 40
Pressure setting: 0.4MPa Open: 10l/min Closed: 6l/min
1/2" hose Detector 1/4" hose Standard changer Detector
4 5 6 7 8 9
Waste water (discharged outside)
Pressure setting 0.02MPa
Cooling water (Tap water or filtered industrial water) Pressure: 0.2 to 0.5MPa Flow rate: Approximately 10litter/min Temperature: 25 10C Purge air (dehumidified air) Pressure: 0.4 to 0.7 MPa Flowrate: 1m3[normal]/min
3/4" hose Screen mesh: 40 3/4" hose
Top frame Spray pipe Rail surface purge Rack surface purge Terminal box
10 11 12 13
1/2" hose Detector lower surface purge Degree of filtration : 5m Standard changer upper surface purge
Supplied by customer
3/8" hose
Note:
1. in figure indicates JIS 0.98MPa ball valve. 2. Scope of supply for piping parts depends on specifications. 3. If there are large fluctuations in supply water pressure and pulsing, or if continuous operation of the safety valve causes problems with the amount of water discharge, a water pressure reducing valve* must be installed. In such cases, we recommend installing the pressure gages shown in * and * .
Figure 16 No. EJD-069
Piping Connections
12
Other Related Models In addition to the TOSGAGE-7525, the following models are also available for use on steel lines. For details, please contact a Toshiba sales representative. TOSGAGE-7511 For general cold rolling TOSGAGE-7521/7522 For general hot rolling TOSGAGE-7524 For installation between hot rolling stands
No. EJD-069 13
Notes on using the system: Because improper use of X-rays can be harmful to the human body, use of X-ray emitting technology is subject to the radiation-hazard safety regulations of your state. Please abide by those regulations when using the TOSGAGE-7525.
Misuse of this product can result in property damage or human injury. Read related manuals carefully before using this product.
Printed in Japan 2001-5 (TDOC) TOSHIBA Corporation 2001 All Rights Reserved. * Windows NT is a registered trademark of Microsoft Corporation, in the United States and other countries. * The information in this brochure is subject to change without notice.
No. EJD-069 14
