Thermo Scientific Apex Service Manual
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Thermo Scientific Apex Service Manual

Thermo Scientific Apex Service Manual

Thermo scientific apex metal detector service guide
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Metal Detector

Service Guide
REC 4258 Rev C Part # 087929

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Summary of Contents for Thermo Scientific Apex

  • Page 1: Metal Detector

    Apex Metal Detector Service Guide REC 4258 Rev C Part # 087929...
  • Page 2 Revision Number Date Released ECO Number Release Specifics Revision A March, 2007 1369 Official First Release Revision B May 2007 1442 Added DSP3 to APEX upgrade instructions, Chapter 11. Revision C July 2007 1516 Added procedures to APEX software upgrades.
  • Page 3 Thermo Scientific. This document also is an unpublished work of Thermo Scientific. Thermo Scientific intends to, and is maintaining the work as confidential information. Thermo Scientific also may seek to protect this work as an unpublished copyright. In the event of either inadvertent or deliberate publication, Thermo Scientific intends to enforce its rights to this work under the copyright laws as a published work.
  • Page 4 Software Program to be used in connection with other Equipment purchased from Thermo Scientific , or one of its divisions, you must, at the same time, either transfer all your other copies of the Software Program to the transferee of the Equipment or destroy them. Your license is then terminated.
  • Page 5 Please note that Thermo Scientific reserves the right to change and/or improve the product design and specifications without notice.
  • Page 6 ****** This page left blank intentionally *********...

  • Page 7: Table Of Contents

    Figures ........................v About this Manual....................vii Organization of this Guide..............vii Chapter 1 ......................1-1 Search Head PCBA Head Setup ..............1-1 APEX Frequency Limitations .............. 1-1 Safety ....................1-1 Search Head PCB................1-2 Oscillator Transformer Ratio ............1-2 Oscillator Frequency ................ 1-3 Oscillator Amplitude................

  • Page 8: Contents

    Chapter 3 ......................3-1 Control Panel Assembly...................3-1 How Too Upgrade the APEX Software..........3-1 PN 090896 - APEX CPU Programming Cable – C07387M-E007.. 3-1 Upgrade Method 1 – MS-DOS boot floppy ........3-2 Upgrade Method 2 – Upgrading in Windows ........3-3 APEX error codes ................
  • Page 9 Cable Assemblies................. 5-2 Chapter 6 ......................6-1 Reference Material...................6-1 DSP3/APEX Differences..............6-1 DSP3 Sensitivity Control VS APEX Detection Level Control..6-1 DSP3 PCNR VS APEX PNR ............6-1 Loss of DSP3 VNX ................6-2 APEX DSV Filter................6-2 APEX DAG Method................ 6-3 APEX Display Size ................
  • Page 10 Chapter 9 ......................9-1 Cold Start......................9-1 Chapter 10 ......................10-1 Oscillator......................10-1 Chapter 11 ......................11-1 DSP3 to APEX Upgrade Instructions............11-1 DSP3 Parts..................11-18 Chapter 12 ......................12-1 APEX Software Update...................12-1 Upgrade Method 1 – MS-DOS Boot Floppy ........12-2 Upgrade Method 2 – Upgrading in Windows ........12-3 Troubleshooting................

  • Page 11: Figures

    Figure 11–1. Integral Conversion Kit............11-2 Figure 11–2. Integral Conversion Kit Front View........11-2 Figure 11–3. Integral Conversion Kit Back View ........11-3 Figure 11–4. DSP3 Unit to be Upgraded ............11-3 Figure 12–1. APEX CPU Programming Cable ..........12-1 Thermo Fisher Scientific Contents v REC 4258 Rev C...
  • Page 12 Contents ****** This page left blank intentionally ********* Contents Thermo Fisher Scientific REC 4258 Rev C...

  • Page 13: About This Manual

    About this Manual The APEX Service Guide is a learning resource and reference for use by Thermo Scientific Service Engineers and those adequately trained by Thermo Scientific to perform installation, customer training, product commissioning, and parts replacement. It is an introduction to the product and a theoretical outline for the instrument and its operation.
  • Page 14 About this Manual Instructions in this manual may require special precautions to ensure the Safety safety of the personnel performing the operations. Messages Please read the safety information before performing any operation. There are two levels of safety messages: warnings and cautions. The distinction between the two is as follows: WARNING.
  • Page 15 WARNING. This machine should not be operated at more than the production rate stated on your Equipment Specification sheet, used in applications other than those stated in the original order, or in a manner Thermo Scientific not specified by . To do so may impair the protection provided by the machine.
  • Page 16 About this Manual ****** This page left blank intentionally ********* About this Manual Thermo Fisher Scientific REC 4258 Rev C...

  • Page 17: Chapter 1

    Pharmaceutical detector: Single frequency only - 700 kHz Note. While it is possible to set the APEX to any operating frequency in the ranges listed above, there is the following operating frequency limitations on all integral heads due to the switching PSU (132Khz switching frequency) mounted in close proximity to the search head.

  • Page 18: Search Head Pcb

    Search Head PCBA Head Setup Search Head Before fitting replacement PCB, check the position of solder jumper JP14. Change position if necessary (solder link from bottom of PCB). Position to suit high/low frequency option. Screen JP14 Oscillator Transformer Ratio Earth Strap A96843 Figure 1–1.

  • Page 19: Oscillator Frequency

    Search Head PCBA Head Setup 1. Remove the search head screen and fit PCBA, rotate the top of Nylatch to secure. 2. Solder Oscillator and input coil connections, ensure the solder flows fully around the joint. 3. Fasten the earth strap to the body of the head. 4.

  • Page 20: Oscillator Amplitude

    Search Head PCBA Head Setup This section outlines the steps to set the oscillator amplitude. Oscillator 1. Set JP6 [frequency select] to high frequency operation. Amplitude 2. Adjust VR3 [amplitude control] to voltage indicated by graph (see Chapter 2), if this cannot be achieved set to max un-distorted (do not exceed 40V).

  • Page 21: Input Tuning

    Search Head PCBA Head Setup 1. Set gain select jumpers for CPU control, JP5. Input Tuning 2. And JP9. 3. Solder nominal capacitance value across CIL1-CIL6 (22nF) and CIH1-CIH7 (1n0). 4. Set JP6 [Frequency select] to High frequency operation. 5. Set JP8 [Autobalance] to off. 6.

  • Page 22: Figure 1-4. Input Tuning

    Search Head PCBA Head Setup 12. Monitor tp 122 [Oscillator o/p] with scope lead 1, position trace such that peak is in the center of the screen. 13. Monitor tp 162 [Low RF gain] with scope lead 2, place ferrite in aperture to generate offset between 100-500 mV.

  • Page 23: Electronic Balance

    (High/Low) using JP3. Balance Low Range = (Fine step adjustment). High Range = (Coarse adjustment). Thermo Scientific recommends using Low balance range when possible. If balance cannot be achieved set JP3 for High Balance range. 1. Disable Auto Balance JP8.

  • Page 24: Figure 1-5. Electronic Balance Correction (Hf)

    Search Head PCBA Head Setup Balance components (HF) JP10 JP11 (Balance range TP13 (High RF) TP162 (Low RF) (Frequency select) A96843 Figure 1–5. Electronic Balance Correction (HF) Search Head PCBA Head Setup Thermo Fisher Scientific REC 4258 Rev C...
  • Page 25 Search Head PCBA Head Setup 1. Set JP6 [Frequency select] to low frequency operation. Electronic Manual 2. Set SW3, SW4 [LFX, LFR] to setting zero. Balance (LF) 3. Monitor tp 162 [Low RF], adjust VR7 [LFX] and VR6 [LFR] for minimum signal.

  • Page 26: Figure 1-6. Electronic Balance Correction (Lf)

    Search Head PCBA Head Setup JP12 JP13 (Balance range high/low TP13 (High RF) TP162 (Low RF) (Frequency select) A96843 Figure 1–6. Electronic Balance Correction (LF) 1-10 Search Head PCBA Head Setup Thermo Fisher Scientific REC 4258 Rev C...

  • Page 27: Search Head Screen

    Search Head PCBA Head Setup 1. Once balance is achieved at both frequencies, fit search head Search Head screen, rotate top of Nylatch to secure. Screen 2. Monitor tp 13 [High RF], adjust VR7 [LFX] and VR6 [LFR] for minimum signal. 3.

  • Page 28: Figure 1-7. Auto Balance

    Search Head PCBA Head Setup TP13 Access for VR4, VR5, VR6, VR7 (high RF) (A/B on/off) balance adjustment Access for T2 (high frequency trimmer) (Frequency Select) A96844 Figure 1–7. Auto Balance 1-12 Search Head PCBA Head Setup Thermo Fisher Scientific REC 4258 Rev C...

  • Page 29: Search Head Pcp Layout

    Search Head PCBA Head Setup Search Head Search head Board 079073 is laid out as displayed below. PCP Layout Manual TP122 TP13 balance (Oscillator (Amplitude control) (A/B (High RF) controls (FET current) Screen CIH1-CIH7 JP14 (T1 ratio TP162 (low RF) (High frequency trimmer) CL1-CL10...

  • Page 30: Fine Tuning The System

    Search Head PCBA Head Setup Fine Tuning the System Cable assembly, search head signal cable (refer to Chapter 5 for • Parts Required part numbers). Front panel assembly (complete). • 1. Fit search head signal cable between CPU motherboard [J2} and Search head board [JP1].
  • Page 31 Search Head PCBA Head Setup 9. Pass ferrite test sample through the aperture, check green LED illuminates and red LED does not. Note. DO NOT use ferrous metal. ▲ 10. If green LED fails to illuminate increase test ferrite size, if red LED illuminates reduce test ferrite size.
  • Page 32 Search Head PCBA Head Setup ****** This page left blank intentionally ********* 1-16 Search Head PCBA Head Setup Thermo Fisher Scientific REC 4258 Rev C...

  • Page 33: Chapter 2

    Chapter 2 APEX I/O and PSU Connections Overview of the connections on PSU PCBA A79073 A96850 Figure 2–1. PSU PCBA connections Thermo Fisher Scientific APEX I/O and PSU Connections REC 4258 Rev C...

  • Page 34: Wiring Ac Power Into The Psu Pcba

    PCBA AC power source that is not connected to heavy duty loads or loads that might cause interference or drop-outs in the supply. Thermo Scientific does not recommend sharing an AC power source that feeds powerful motor invertors because they can cause interference problems. We recommend using a lighting circuit.

  • Page 35: Wiring Inputs Into The Psu Pcba

    CAUTION. Do not use these inputs for connection to any system or unit having signal voltages outside of the range ground to 12v. Damage may Thermo Scientific. occur. If in doubt contact ▲ Thermo Fisher Scientific APEX I/O and PSU Connections 2-3 REC 4258 Rev C...

  • Page 36: Inputs

    APEX I/O and PSU Connections Input 1 - Speed sensor • Inputs Input 2 - Infeed photo eye • Input 3 – Reject confirm/Bin full • Input 4 – Not assigned • Input 5 – Not assigned • Input 6 – Not assigned •...

  • Page 37: Relay Outputs

    Sometimes RS485 requires bias current to make it work correctly. Operating the two right-hand switches on S1 apply 5v and ground via 1kohm resistors to the receive inputs. Thermo Fisher Scientific APEX I/O and PSU Connections 2-5 REC 4258 Rev C...
  • Page 38 APEX I/O and PSU Connections ****** This page left blank intentionally ********* APEX I/O and PSU Connections Thermo Fisher Scientific REC 4258 Rev C...

  • Page 39: Control Panel Assembly

    The other, called the MMI, takes care of the user interface. APEX To program an APEX, one needs a special cable to put each of the two Software CPU's into the bootstrap mode so we can upload a new program to it.
  • Page 40 PC. 5. Close the switch that selects the APEX DSP CPU 6. Power up the APEX. There will be little if any indication on the APEX that a CPU is in the bootstrap mode. 7. At the DOS prompt, enter APEXDSP and press Enter. The update process will begin and the progress will be shown on the screen.

  • Page 41: Upgrade Method 2 – Upgrading In Windows

    PC 4. Close the switch that selects the APEX DSP CPU 5. Power up the APEX. There will be little if any indication on the APEX that a CPU is in the bootstrap mode. 6. From the directory you just created, start the Program ApexDSP by double clicking it.
  • Page 42 Control Panel Assembly 11. Cycle power to the APEX and confirm on the splash screen that the version number is the new one. NOTE 1: The utility Flash166 uses COM1 by default. If you want to use a serial port other than COM1, edit the batch files and add one of these...
  • Page 43 Control Panel Assembly Check the cable, make sure the unused pins on the APEX side are not connected, or can make contact with another pin. If running in Windows close any other program that may be running. If running in Windows, make the registry change described in Note 3.
  • Page 44 Control Panel Assembly DSP Errors Token Type Description Code RC_DSP_ASSERT_FAILURE FATAL A code integrity check has failed; see note 1 RC_DSP_NON_MASKABLE_INTERRUPT FATAL A non-maskable interrupt has occurred. RC_DSP_STACK_OVERFLOW_INTERRUPT FATAL The internal stack has overflowed. RC_DSP_STACK_UNDERFLOW_INTERRUPT FATAL The internal stack has overflowed. RC_DSP_CLASS_B_HARDWARE_TRAP FATAL There has been a class B hardware trap;...

  • Page 45: Figure 3-2. Password Entry Screen

    Path: Main Menu When the machine is first started, you might want to set the passwords Passwords for all security levels. The APEX has passwords disabled by default. Use the following steps to enable passwords. Figure 3–1. Password Screen 1 1.

  • Page 46: Figure 3-3. Password Screen 2 - Assigning Passwords

    Control Panel Assembly Figure 3–3. Password Screen 2 – Assigning Passwords (Level 3 access only. Assigning/Changing Assigning and changing password requires the user to be signed in Passwords with Level 3 (supervisor) access. The default passwords are: OPER – operator – change products (1) ENGI –...

  • Page 47: Figure 3-5. Password Confirmation Screen

    Note. To cancel assigning/changing a password, press the key at any time. ▲ To get the best performance from your APEX metal detector, several Setup items need to be setup correctly. The following table indicates those parameters. P in the table indicates the parameter is product specific, Sys indicates the parameter is a system setting.
  • Page 48 Control Panel Assembly Parameter Application type Parameter name Type Conveyor *Pipeline *Gravity *Pharm Inputs and Outputs Warnings, Alarms and Faults Quality Test AuditCheck Reject Confirm and Bin full Passwords Product Selection Units Filters (DSV, QNR, PNR, CLX) P = Product specific parameter. Must be set up for each different product SYS = System specific parameter.

  • Page 49: Maintenance And Troubleshooting

    Do not use high-pressure hose techniques as these may damage APEX or cause breaches of the integrity of the unit that may lead to contamination problems or compromise safety.

  • Page 50: Check For Corrosion

    Report any incidents of corrosion to Thermo Scientific. If APEX senses a system fault the fault LED turns on, the fault relay Fault Finding will change state and a fault message is displayed. The section contains descriptions of the type and source of faults that may occur.

  • Page 51: Battery Low Fault

    Maintenance and Troubleshooting Cause Battery Low Fault The battery powering the Replace Battery and/or control panel as memory when power is off is necessary. becoming discharged. Note: This does not affect the unit operation as long as power is maintained. This fault indicates the product memory has been lost or damaged.

  • Page 52: Qa Test Result Fault

    Maintenance and Troubleshooting Cause QA Test Result Occurs if during a QA test the Enter QA test mode and repeat the test to required number of detections of achieve the required number of Fault specific peak size did not occur. detections.

  • Page 53: Auditcheck Fault

    Maintenance and Troubleshooting ™ This fault only occurs if you have AuditCheck installed as an option AuditCheck Fault on your metal detector. Cause During an AuditCheck timed Check that the fault limits set for AuditCheck calibration check, the signal are set up for expected variations in the AuditCheck produced by the product.

  • Page 54: Testing Schedule

    7. Care must be taken so if the detector or reject device fails to operate correctly the test sample can be recovered safely. If there are any questions on safety, contact Thermo Scientific for assistance. The user must decide how often the detector should be tested. If the...

  • Page 55: Record Keeping

    Service Repair This chapter provides information about service, repair, and replacement parts for your Thermo Scientific product. It includes the Replacement telephone numbers for various departments at Thermo Scientific, the procedure for ordering replacement parts, a Return Material...
  • Page 56 Main Switchboard (800) 227-8891 (763) 783-2525 Service (800) 227-8891 Return Material Authorization & Repair (800) 227-8891 24 x 7 phone support Or any local Thermo Scientific office. Maintenance and Troubleshooting Thermo Fisher Scientific REC 4258 Rev C...
  • Page 57 Original P.O. or Thermo Return for Credit Scientific Order No.: Warranty Repair or Replacement Serial No: Return Warranty/Exchange Unit Shipped on Thermo Scientific Order No.: Other: Disposition/Comments: (Thermo Scientific Internal Use Only) Thermo Fisher Scientific Maintenance and Troubleshooting REC 4258 Rev C...
  • Page 58 Thermo Scientific sends good direct to customer. Thermo Scientific determines shipping method and carrier. Charges will be prepaid by Thermo Scientific and customer will be invoiced for charges. Truck and/or air freight will always be utilized unless customer arranges shipment Thermo Scientific sends goods to customer’s designated freight forwarder.

  • Page 59: Parts Ordering Information

    Determine the broken or faulty part. 1. Locate the part in the Parts List. 2. Find the part number(s) for the item(s) you need. 3. Before you contact Thermo Scientific for your parts, make sure you have the following information: Machine model and serial number...

  • Page 60: Parts

    Maintenance and Troubleshooting Please only use spare parts as directed by Thermo Scientific or their Parts agent. Specifically PCB’s must only be sourced from Thermo Scientific. Fuses can be sourced from any reputable supplier providing their rating is identical: F1 (PSU PCB) – 250 v AC, 3.15 A, 35 A breaking capacity.

  • Page 61: Phone/Fax Contacts For Thermo Scientific Offices

    Phone/Fax +54 (0) 11 4 334 3827 +31 (0) 33-454-9000 Contacts for +54 (0) 11 4 334 9159 fax +31 (0) 33-454-9009 fax Thermo Scientific Offices Australia Poland +61 (0) 8 8150-5300 +48 (0) 22848 3708 phone and +61 (0) 8 8234-5882 fax...

  • Page 63: Battery Replacement

    13. Replace the front cover and reattach cables. APEX’s battery is an approved type according to table 3 of IEC 60086-1 type E. The battery type is Sonnenschein SL-350 PCRN. The nominal voltage is 3.6v. The electrochemical system used in the battery is Lithium Thionyl-Chloride and the rated capacity is 1000 mA-hours.

  • Page 64: Disposal Of Hazardous Waste

    Hazardous Waste Policy. Hazardous Waste As an alternative product supplied by Thermo Scientific may be returned freight pre-paid, for disposal. Contact the Repair Department for a Return Material Authorization Number before shipping any product for disposal.
  • Page 65 Maintenance and Troubleshooting ****** This page left blank intentionally ********* Thermo Fisher Scientific Maintenance and Troubleshooting 4-3 REC 4258 Rev C...

  • Page 67: Part & Drawing Numbers

    268393 114-6906 Anybus Network PCBA Control Panel Assemblies DESCRIPTION PART NUMBER DRAWING NUMBER Control panel assembly, APEX 700 Control panel assembly, APEX 500 089275 B07387M-A003-01 Control panel assembly, APEX100 090586 B07387M-A003-02 Control panel assembly, APEX 091813 B07387M-A003-03 Upgrade Remote cover assembly,...

  • Page 68: Cable Assemblies

    PSU to CPU Motherboard 268264 B07387M-E001 CPU to Search head (Integral) 268265 B07387M-E002 CPU to Search head (Remote) SEE DRAWING B07387M-E003-XX (length specific) APEX programming cable 090896 C07387M-E007 assembly Part & Drawing Numbers Thermo Fisher Scientific REC 4258 Rev C...

  • Page 69: Chapter 6

    In short, neither method offers any technical advantage one way or the other. In fact, DSP3 internal signal processing works exactly like APEX; it is only DSP3’s user interface that pretends to have a fixed detect level with variable sensitivity control.

  • Page 70: Loss Of Dsp3 Vnx

    In the medium/longer term, VNX will be back on APEX but will be significantly more important and usable than DSP3’s implementation of VNX. It is intended for APEX’s VNX to be a complete phase map with definable attenuation across the whole spectrum of phases.

  • Page 71: Apex Dag Method

    DAG resistance in the order of micro-ohms. APEX Display APEX display has exactly the same height as DSP3 but only half the width. Any written characters have the same height as DSP3. APEX’s Size...

  • Page 72: Aperture Size Programming On Cpu

    Coil spacing and the belt speed determine DSP3’s DNR1-4 and/or sampling rate. APEX has the DSV filter and to get the optimum point you learn the filter by passing metal thru the aperture. You do it once and that’s it forever.

  • Page 73: Product Speed And Filtering The Signal

    APEX uses a digital filter to help it detect metal signals. The filter is linked to belt speed and is initially calibrated (or learnt) by passing a metal test-stick through the aperture on the conveyor belt.

  • Page 74: Rejecting The Product More Accurately

    Operation can, under certain conditions cause the detector to “see” the metal in a 2nd pack that is following close behind the first pack. However APEX will “reject” both packs and does this by measuring the distance between 1st and 2nd packs.

  • Page 75: Product Effect

    Foodstuffs such as meat, bread or some Product liquids typify wet products. These have the highest product effect and APEX will phase-out these products in the range –45 degrees to +45 degrees. Wet products create a large “resistive” signal compared to their “reactive” signal.

  • Page 76: Recap +1

    APEX uses a special detection algorithm to look for the correct shape of signal coming from metal to avoid early onset of false detections and rejection. The algorithm avoids problems of metal signals cancelling each other out when two adjacent packs contain similar sized pieces of metal.

  • Page 77: Effects Of Vibration And Mechanical Shock

    The characteristic of case vibration or shock is that it usually produces a high initial impulse signal that APEX removes before it can be detected. By applying APEX’s new impulse reduction system, most applications dogged by vibration problems are fixed.

  • Page 78: Apex Signal Improvement Algorithms

    Reference Material APEX signal Improvement Algorithms When you first check your machine QNR is inactive. To activate it proceed to the phase learn screen and go to page 2. It has no other parameters to be set or changed. QNR is generally a useful feature to have activated on all applications.

  • Page 79: Phase Tracking

    This is normal and it indicates that there are small variations in the product effect and that these are being “tracked” by APEX. There are two parameters associated with phase tracking. The first parameter is at the bottom of the screen and is associated with a caution symbol.

  • Page 80: To Recap, Sw1 Effectiveness Is Due To

    Reference Material Balance SW1 and SW2 are used to manually correct magnetic imbalances. Correction They do this by applying a compensating electrical signal onto the Switch input circuits of the search head PCB. SW1 corrects reactive imbalances and SW2 corrects resistive imbalances. Settings on The compensating signal is derived from the oscillator voltage via JP3.
  • Page 81 Reference Material Input tuning affects the reactive (SW1) compensation and across a wide range of typical heads, SW1’s effectiveness may be reduced by up to 3:1: - 300kHz 1050 40vp-p (8") (10") (12") (14") (16") (18") (20") (22") (26") (30") (34") (38") (42")
  • Page 82 Reference Material 300kHz 1050 40vp-p (8") (10") (12") (14") (16") (18") (20") (22") (26") (30") (34") (38") (42") 50 (2") 75 (3") 100 (4") 125 (5") 150 (6") 175 (7") 200 (8") 250 (10") 300 (12") 350 (14") 400 (16") 500kHz 1050 40vp-p...
  • Page 83 Reference Material “H” means JP3 is in the high position. “L” means JP3 in low position. Numbers are not expressed in hexadecimals for convenience. A=10, B=11, C=12, D=13, E=14 & F=15 These numbers are just guidelines. Higher settings may not produce noise.
  • Page 84 Reference Material ****** This page left blank intentionally ********* 6-16 Reference Material Thermo Fisher Scientific REC 4258 Rev C...

  • Page 85: Auditcheck

    AuditCheck™ Thermo Scientific AuditCheck™ is an optional system that, if not installed at the factory, can be easily installed in the APEX. It is an automatic means of checking the calibration of both sensitivity and phase angle. AuditCheck simulates the presence of a metal contaminant in the product by “firing”...

  • Page 86: Figure 7-1. Cross Section Of The Search Head On A Conveyor System

    AuditCheck™ As part of the automatic setup and calibration the test piece is fired from “A” to “B” simultaneously with the product. The resultant metal detection signal can then be measured in the presence of the product. The test piece rapidly returns from “B” to “A” so its signal is filtered out and does not affect the peak signal measurement.

  • Page 87: Operation

    AuditCheck™ Operation Ensure product calibration (sensitivity and phase) is complete before AuditCheck is enabled. After initial setup the test sphere is firing synchronized with the product at a regular interval set by the Test interval. The resulting head signal (Current Peak) is then measured and compared with the calibration results (Learnt Peak).

  • Page 88: Software Setup

    AuditCheck™ Note: The upstream valve (Valve A) should be left wide open so there is no restriction on the return so the shuttle returns as fast as it can. The downstream valve (Valve B) needs to be adjusted so the speed of the shuttle is the same as the speed of the product and the shuttle just reaches Position B and then returns.
  • Page 89 AuditCheck™ This is the calibration page. 1. Select Icon #1 to calibrate. The peak and phase results are shown directly below the icon. 2. For best accuracy, calibrate #2 and #3 also. The peak and phase averages of the three tests are shown at the bottom of the screen. Note.

  • Page 90: Figure 7–3. Auditcheck Screen 3

    AuditCheck™ AuditCheck Rejects This icon is a toggle switch. Select it and choose between off (‘X’) or a bin number (1 or 2). At SCREEN 3, the tolerances are set. Tolerances set high and low AuditCheck Screen 3 limits for AuditCheck. If the timed calibration signal is outside these limits, a fault/alarm is produced.

  • Page 91: Manual Auditcheck Test

    AuditCheck™ Icon Description Warning Peak limit of 20% Warning Phase limit of 2 degrees Alarm Peak limit of 40% Alarm Phase limit of 4 degrees Fault Peak limit of 80% Fault Phase limit of 8 degrees Manual To check the calibration a manual AuditCheck can be run at any time. AuditCheck Test Use the following steps to run a manual AuditCheck.

  • Page 92: Auditcheck Patented Sensitivity Test System

    AuditCheck AuditCheck is a unique and patented (USA Patent No. 5,160,885) Patented automatic sensitivity test system for Thermo Scientific metal detectors. Sensitivity Not only does the AuditCheck automate the regular testing of metal detection sensitivity, but it also saves time and money and insures Test System product quality.

  • Page 93: Figure 7-4. Head Sensitivity

    AuditCheck™ After all of these inconveniences, it is still difficult to ensure that the contamination is always traveling along a consistent path. There are applications in which traditional manual testing methods are, for all intent and purposes, impossible to achieve - for example, in the case of hot soup being detected in a pipe line.
  • Page 94 AuditCheck™ There is a region between these limits where the probability of metal detection will vary from 0% to 100%. For example, there will be a point X2 where if the contaminate is passed 100 times it will only be detected 50 times, there will also be a point X1 where the contaminate will be seen 99.9% of times.

  • Page 95: Auditcheck Theory Of Operation

    Such a system may seem to be a quantum leap from the traditional manual testing methods. Indeed it is, but that is exactly what is offered by the Thermo Scientific AuditCheck. AUDITCHECK The AuditCheck system (USA Patent No. 5,160,885) has been...

  • Page 96: Figure 7-5. Auditcheck Sensitivity

    AuditCheck™ Figure 7–5. AuditCheck Sensitivity The AuditCheck system uses the fact that there is a fixed relationship between the sensitivity at each point in a metal detector field. For example, define the sensitivity at the center “C” as “S” and the corresponding sensitivity at another point “A”...
  • Page 97 AuditCheck™ If the overall metal detector sensitivity decreases by 50%, Y = 1/(1- .50) = 2. Therefore, the sensitivity at point “C” would be (200/2) = 100 and the sensitivity at point “A” would be (5000/2) = 2500. If the overall metal detector sensitivity decreases by 75%, Y = 1/(1- .75) = 4.

  • Page 98: Figure 7-6. Auditcheck Elements

    AuditCheck™ Figure 7–6. AuditCheck Elements It should be also noted that the path of the test piece is precisely controlled. Another benefit of the design is that it is a failsafe system. If the air supply to the system is defective, the test piece will not travel through the tube and the resultant head signal will not be measured.

  • Page 99: Figure 7-7. Amplitude Of The Signal

    AuditCheck™ Figure 7–7. Amplitude of the Signal Having calibrated the test system, the test piece will be fired in parallel with the product at a regular interval, approximately once an hour. The resulting signal is then measured and compared with the stored baseline calibration result.
  • Page 100 AuditCheck™ Components • The detector must be equipped with an AuditCheck system. SETUP This consists of the 5-way valve, the AuditCheck shuttle tube with two adjustable airflow valves, shuttle(s) and test sphere(s), and pneumatic tubing. Basic Operation • The basic operation of the system is as follows. The valve is wired to a relay under the control of the microprocessor.

  • Page 101: Summary

    AuditCheck™ product test sphere size, any change in system performance will be detected by the AuditCheck system. There are two internal limits to the AuditCheck system. The first limit is set to detect any change in signal from the AuditCheck greater than 20 percent. If the AuditCheck signal is greater or less than the expected signal by more or less than this 20 percent, this first warning is issued.
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  • Page 103: Chapter 8

    Chapter 8 Using the APEX Oscilloscope This appendix outlines the use of the oscilloscope associated with the APEX software. From the TOOLS menu, page 1, use the arrow key to select the SCOPE icon. Press the ENTER (green key) and the following screen displays: There should be a vertical dotted line moving across the screen.
  • Page 104 Using the APEX Oscilloscope The amplitude of the screen is 100 from center to top or bottom of • screen Channel 1 is showing the output of the lo-pass filter • Channel 2 is switched off • Press ENTER (green key) and the following screen displays: This screen further details the information located at the bottom of the previous screen and adds more selections for the display.
  • Page 105 Using the APEX Oscilloscope 3. Using the RIGHT arrow press it repeatedly until an offset of +80 displays. 4. Press the CANCEL (red) key to return to the scope display. The following screen displays: As displayed, the signal previously running along the horizontal centerline of the display has dropped to 80 points below where it was.
  • Page 106 Using the APEX Oscilloscope Try lowering the amplitude even further and you will see more signal fluctuations. It is important to understand what signals can be shown on the scope. R:INPUT • X:INPUT • R:HI-PASS • X:HI-PASS • R:CLIPPED •...
  • Page 107 Using the APEX Oscilloscope To make best use of the scope you must understand where each of these signals exist in the signal processing chain of the machine. Below is a diagram to help. Let’s examine some of the signals.
  • Page 108 Using the APEX Oscilloscope Displayed are high-pass filtered X and R signals when a metal passes thru the search head. X is larger indicating the metal’s phase angle is closer to 90 than zero degrees. (This signal is equivalent approximately to a piece of ferrous metal about 1.0mm in diameter.) Displayed below are high-pass filtered R and the Lo-pass signal.
  • Page 109 Using the APEX Oscilloscope If we examined the background noise by lowering the amplitude even more we would see something like this: - It can be a little tricky to see but the low-pass trace is largely unaffected by noise – for the most part it runs steady across the centerline of the scope.
  • Page 110 Using the APEX Oscilloscope Metal has passed thru the aperture and the final part of the signal (to the left of the vertical dotted-line) is about to overwrite the older data on the right hand side of the vertical dotted line. In other words, the dotted line indicates both the beginning of the signal and the end of the signal.
  • Page 111 Using the APEX Oscilloscope counting-down to capture several seconds of data. After it has captured the data it will look something like this: - The trigger information indicates “HOLD” and this mean it has captured all the data. On the configuration screen above you will note that the trigger reference chosen is “CENTRE”...
  • Page 112 Using the APEX Oscilloscope One final bit of information on the use of trigger; a manual trigger is performed by moving highlighting the trigger information and hitting the green enter key. Digital signals can also be displayed. Below shows the metal signals as before but this time a digital signal is introduced.

  • Page 113: Chapter 9

    A cold start should only be performed as a last resort when the machine is not performing as expected. WARNING. Performing a cold start will erase all of the memory in the APEX and it will have to be reprogrammed and recalibrated. 1. Disconnect power from the machine.
  • Page 114 DSP3 to APEX Upgrade Instructions 4. Wait 10 seconds to be sure the contents of the battery-backed memory have been discharged. 5. Replace the jumper across the same 2 pins (J7 1 to 2 = ON). 6. Remount the front panel.

  • Page 115: Chapter 10

    Chapter 10 Oscillator This appendix contains an oscillator voltage guide for your convenience. Thermo Fisher Scientific Oscillator 10-1 REC 4258 Rev C...
  • Page 117 DSP3 to APEX Upgrade Instructions...

  • Page 119: Chapter 11

    Tools and Equipment Needed 1. 12” adjustable wrench 2. 10 mm nut driver 3. Regular flat screwdriver, ¼” blade 4. Small jewelers screwdriver 5. Integral Conversion Kit Drawing (B07387M-A015) Thermo Fisher Scientific DSP3 to APEX Upgrade Instructions 11-1 Rec4258 Rev C...

  • Page 120: Dsp3 To Apex Upgrade Instructions

    DSP3 to APEX Upgrade Instructions Figure 11–1. Integral Conversion Kit Power Cable Figure 11–2. Integral Conversion Kit Front View Note. Numbers referenced above are the item numbers listed on drawing B07387M-A015. ▲ Note. Power cable shown will not be included as a standard part.

  • Page 121: Figure 11-3. Integral Conversion Kit Back View

    DSP3 to APEX Upgrade Instructions Figure 11–3. Integral Conversion Kit Back View Figure 11–4. DSP3 Unit to be Upgraded Thermo Fisher Scientific DSP3 to APEX Upgrade Instructions 11-3 REC 4258 Rev C...
  • Page 122 DSP3 to APEX Upgrade Instructions Use the following steps to perform the conversion: 1. Disconnect the power to the power supply unit (PSU) enclosure. 2. Remove the front panel assembly using 10 mm nut driver. Total of 4 bolts. 3. Disconnect the cables from the control panel assembly. Total of 3 connectors.
  • Page 123 DSP3 to APEX Upgrade Instructions 5. Remove the PSU and search head drain wires, 2 Dag ground wires and search head board ground wire from the DSP3 bulkhead using the flat head screwdriver. 6. Unscrew and remove the wires. Thermo Fisher Scientific...
  • Page 124 DSP3 to APEX Upgrade Instructions 7. Remove the search head cable assembly and set aside. 8. Disconnect the connectors from the PSU cable assembly. This is required to remove the PSU cable assembly from the search head. Total of 2 connectors (18 wires).
  • Page 125 DSP3 to APEX Upgrade Instructions 9. Connectors removed. 10. Remove PSU cable assembly conduit fitting from the search head using 12” adjustable wrench. Thermo Fisher Scientific DSP3 to APEX Upgrade Instructions 11-7 REC 4258 Rev C...
  • Page 126 DSP3 to APEX Upgrade Instructions 11. Remove the PSU cable assembly from the search head and set aside with power supply enclosure. DSP3 shown ready for integral APEX upgrade. 11-8 DSP3 to APEX Upgrade Instructions Thermo Fisher Scientific REC 4258 Rev C...
  • Page 127 DSP3 to APEX Upgrade Instructions 12. Install APEX upgrade cable assembly through the gland hole in the DSP3 search head. 13. Thread APEX upgrade cable assembly conduit connector into M20 threaded gland of DSP3 search head. 14. Use supplied M20 locking nut if the gland is a through hole and not a threaded hole.
  • Page 128 DSP3 to APEX Upgrade Instructions 15. Tighten conduit fitting using 12” adjustable wrench. 16. Insert conduit into conduit fitting. Ensure no tabs of conduit fitting are folded under by the conduit. 17. Hand tighten conduit fitting until conduit is secured.
  • Page 129 DSP3 to APEX Upgrade Instructions 18. Use the Remote Cable Assembly drawing (B07387M-E003) to wire cable ends to connectors. Total of 12 wires to 10 terminals. 19. Wire connectors and tighten to .5-.6 Nm [4.4-5.3 in-lb] using jewelers flat screw driver.
  • Page 130 DSP3 to APEX Upgrade Instructions 20. Connect upgrade cable assembly drain wire, 2 dag ground wires and SH PCBA ground wire to bulkhead using ground screw and flat head screwdriver. 21. Tighten to 3-4 Nm [27-35 in-lb]. 22. Connect cable assembly PL1 to search head PCBA JP1. Ensure connector is fully engaged.
  • Page 131 The top of the lid assembly has mounting bolts further from the edge of the lid. 26. Mounting of the lid assembly this way will ensure the top of the APEX electronic enclosure is flush with the top of the lid assembly. Thermo Fisher Scientific...
  • Page 132 27. Install the lid assembly (B07387M-A013) onto DSP3 front enclosure 28. Tighten the 4 mounting bolts evenly using M10 nut driver. Tighten to 3-4 Nm [27-35 in-lb]. 29. Position the APEX upgrade assembly onto the lid assembly for installation. 11-14 DSP3 to APEX Upgrade Instructions...
  • Page 133 DSP3 to APEX Upgrade Instructions 30. Fasten the APEX upgrade assembly onto the lid assembly using M6 x 12 mounting bolts and flat washers, total of 4. 31. Completely tighten the 4 bolts using M10 nut driver to 3-4 Nm [27-35 in-lb].
  • Page 134 DSP3 to APEX Upgrade Instructions 33. Verify the APEX upgrade is running and no faults are present 34. Reference REC 4248 – APEX operator manual for full setup details. 35. Place a 12” adjustable wrench into the aperture to cause the search head fault (caused by a balance error).
  • Page 135 37. Remove the 12” adjustable wrench from the aperture; search head fault must clear. 38. Reference Chapter 1 of this manual for detailed information on tuning and balancing of the APEX upgrade search head. Thermo Fisher Scientific DSP3 to APEX Upgrade Instructions...

  • Page 136: Dsp3 Parts

    DSP3 to APEX Upgrade Instructions The parts removed from the DSP3 can remain with the customer if DSP3 Parts they want to keep them. If the customer does not want them, box them up and ship them back to Thermo Fisher Scientific.

  • Page 137: Chapter 12

    The other, called the MMI, takes care of the user interface. To program an Apex, a special cable is needed to put each of the two CPU’s into the bootstrap mode so software upgrades can be uploaded.

  • Page 138: Upgrade Method 1 - Ms-Dos Boot Floppy

    4. Using the Apex CPU programming cable, connect the Apex to the 5. Close the switch that selects the Apex DSP CPU 6. Power up the Apex. There will be little if any indication on the Apex that a CPU is in the bootstrap mode.

  • Page 139: Upgrade Method 2 - Upgrading In Windows

    DSP3 to APEX Upgrade Instructions 9. Cycle power to the Apex or press both of the CPU reset buttons 10. At the DOS prompt, enter ApexMMI and press Enter. This updates the Apex MMI CPU. When prompted to press a key, do so until the DOS prompt returns.
  • Page 140 7. Now Close the switch that selects the Apex MMI CPU and open the Apex DSP switch. 8. Cycle power to the Apex or press both of the CPU reset buttons. 9. Start ProgramApex MMI by double clicking it. A command prompt window will open, starting the update to the Apex MMI CPU.
  • Page 141 DSP3 to APEX Upgrade Instructions Note 3 The people who created Flash166 also recommend a change to this Windows registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Pr iorityControl\ Win32PrioritySeparation Change the parameter Win32PrioritySeparation to the value 20 (decimal) or 0x14 (hex). This change gives the foreground window a higher priority.

  • Page 142: Troubleshooting

    Confirm that the programming cable is securely plugged in on both • ends. Check the cable, make sure the unused pins on the Apex side are • not connected, or can make contact with another pin. If running in Windows, close any other program that may be •...

  • Page 143: Chapter 13

    Chapter 13 Engineering Drawings Control Panel Assembly, APEX B07387M-A003-XX Assembly, Power Supply/I/O, APEX B07387M-A004 Tuned Search Head Assembly, APEX 500 B07387M-A007 Electronics GP, APEX 500, Integral B07387M-A009 Electronics GP, APEX 500, Remote B07387M-A010-XX Remote Cover Assembly, S/H, SS, APEX B07387M-A012 Electronics GP, DSP3>APEX upgrade, Integral...
  • Page 144 DSP3 to APEX Upgrade Instructions ****** This page left blank intentionally ********* 13-2 Engineering Drawings Thermo Fisher Scientific REC 4258 Rev C...
  • Page 145 SEE TAB LABEL,TS/APEX ____,FRONT SEE TAB 267932 KEYPAD, APEX 088362 DISPLAY PCBA, LCD, MET DET, APEX 088596 SPACER, BRS, HEX, F-F, M2.5 X 15 057789 SCR, MET, MACH, PNH, M2.5 X 8 SST NOTES: ITEMS 2 AND 4 ARE MOUNTED WITH SCREWS AND TAPERED BUSHINGS SUPPLIED WITH ITEM 1.
  • Page 146 CHECKED BY: 5/5/06 REMOVE ALL BURRS & UNNECESSARY SHARP EDGES CONTROL PANEL ASSY,APEX ____ This document is confidential and is the property of Thermo Fisher PART NUMBER: Scientific ("Thermo"). It may not be copied or reproduced in any SEE TAB manner without the expressed written consent of Thermo.
  • Page 147 BOM TABLE ITEM PART N0 DESCRIPTION DRAWING NO 268392 PCBA, PSU, APEX 268393 PCBA, RELAY BD, APEX 021007 WASHER, LOCK, INT TOOTH, #4 SST 183987 SCR, SET, SCH, CUP, M3 X 16 SST 089972 SPACER,BRS,HEX,M-F,M3 X 10 088595 SPACER, BRS, HEX, M-F, M3 X 18MM LG...
  • Page 148 FILL AIR BUBBLES/VOIDS WITH ITEM 22, BUT NOT AFTER THE FINAL POUR. CHECKED BY: 7/19/06 REMOVE ALL BURRS & UNNECESSARY SHARP EDGES TUNED SEARCH HEAD ASSY,APEX 500 1330 ADDED ITEMS 25, 26, AND 27, CHANGED NOTES 1 AND 4 DG RLK 1/25/07...
  • Page 149 CHECKED BY: 7/19/06 REMOVE ALL BURRS & UNNECESSARY SHARP EDGES TUNED SEARCH HEAD ASSY,APEX 500 This document is confidential and is the property of Thermo Fisher PART NUMBER: Scientific ("Thermo"). It may not be copied or reproduced in any VARIOUS manner without the expressed written consent of Thermo.
  • Page 150 CHECKED BY: 7/19/06 REMOVE ALL BURRS & UNNECESSARY SHARP EDGES TUNED SEARCH HEAD ASSY,APEX 500 This document is confidential and is the property of Thermo Fisher PART NUMBER: Scientific ("Thermo"). It may not be copied or reproduced in any VARIOUS manner without the expressed written consent of Thermo.
  • Page 151 PARTS LIST ITEM PART NO DESCRIPTION DRAWING NO 089275 CONTROL PANEL ASSY,APEX 500 07387M-A003-01 089311 POWER SUPPLY ASSY,I/O,APEX 07387M-A004 268264 PSU TO CPU M/B CABLE 07387M-E001 SEARCH HEAD (07387M-A007) 268265 CPU M/B TO S/H BOARD CABLE 07387M-E002 088605 GLAND,CBL,.20-.35,M20,SM,NYLON 088607...
  • Page 152 DATE: CHECKED BY: 7/11/06 REMOVE ALL BURRS & UNNECESSARY SHARP EDGES ELEX GP,APEX 500,INTEGRAL This document is confidential and is the property of Thermo Fisher PART NUMBER: Scientific ("Thermo"). It may not be copied or reproduced in any 089595 manner without the expressed written consent of Thermo. This document also is an unpublished work of Thermo.
  • Page 153 TAB CHART PART NO DESCRIPTION ITEM 1 P/N ITEM PART NO DESCRIPTION DRAWING NO SEARCH HEAD 089596 ELEX GP,APEX 500,REMOTE, 2M 089608 SEE TAB CABLE ASSY,SH/RMT CPU,APEX,__M 07387M-E003-XX (07387M-A007) 089597 ELEX GP,APEX 500,REMOTE, 3M 089609 089275 CONTROL PANEL ASSY,APEX 500...
  • Page 154 DATE: CHECKED BY: 7/25/06 REMOVE ALL BURRS & UNNECESSARY SHARP EDGES ELEX GP,APEX 500,REMOTE,__M This document is confidential and is the property of Thermo Fisher PART NUMBER: Scientific ("Thermo"). It may not be copied or reproduced in any SEE TAB manner without the expressed written consent of Thermo.
  • Page 155 INSTALL SET SCREWS (ITEM 12) SO THEY CONTACT AND FIRMLY SUPPORT FRONT OF COVER. SCREWS CANNOT SHARP EDGES PROTRUDE BEYOND REAR PLATE SURFACE. SECURE IN PLACE WITH NUTS (ITEM 11). REMOTE COVER ASSY,S/H,SS,APEX This document is confidential and is the property of Thermo Fisher PART NUMBER: Scientific ("Thermo").
  • Page 156 091663 CABLE ASSY,SH/RMT CPU,APEX,.5M 07387M-E003-.5 091813 CONTROL PANEL ASSY,APEX UPGRD 07387M-A003-03 NOTES: POWER SUPPLY ASSEMBLY (ITEM 5) CANNOT BE PREASSEMBLED AS A UNIT. IT MUST BE ASSEMBLED ONTO BACK PLATE (ITEM 2). CABLE GLANDS (ITEM 10) SUPPLIED WITH NUT. INSTALL PLUG (ITEM 11, NOT SHOWN) IN ANY UNUSED GLANDS.
  • Page 157 PARTS LIST ITEM PART NO DESCRIPTION DRAWING NO VARIOUS CASE,APEX 100, ___MMX___MMX___ 07387M-M011-02 090585 GLAND FRAME ASSY,APEX 100 07387M-A002-02 090586 CONTROL PANEL ASSY,APEX 100 07387M-A003-02 089311 POWER SUPPLY ASSY,I/O,APEX 07387M-A004 089312 ASSY,SEARCH HEAD BD MOUNT,APEX 07387M-A005 089592 ASSY,BULKHEAD PL/GND STUD,APEX...
  • Page 158 DATE: CHECKED BY: 12/21/06 REMOVE ALL BURRS & UNNECESSARY SHARP EDGES SEARCH HEAD ASSY,APEX 100 This document is confidential and is the property of Thermo Fisher PART NUMBER: Scientific ("Thermo"). It may not be copied or reproduced in any VARIOUS manner without the expressed written consent of Thermo.
  • Page 159 DATE: CHECKED BY: 12/21/06 REMOVE ALL BURRS & UNNECESSARY SHARP EDGES SEARCH HEAD ASSY,APEX 100 This document is confidential and is the property of Thermo Fisher PART NUMBER: Scientific ("Thermo"). It may not be copied or reproduced in any VARIOUS manner without the expressed written consent of Thermo.
  • Page 160 DATE: CHECKED BY: 12/21/06 REMOVE ALL BURRS & UNNECESSARY SHARP EDGES SEARCH HEAD ASSY,APEX 100 This document is confidential and is the property of Thermo Fisher PART NUMBER: Scientific ("Thermo"). It may not be copied or reproduced in any VARIOUS manner without the expressed written consent of Thermo.
  • Page 161 PARTS LIST Cable Assembly Diagram ITEM PART NO. DESCRIPTION SUPPLIER SUPPLIER REF. QTY. PIN No. 1 214534 26-WAY, HIGH-DENSITY D-TYPE SOCKET FARNELL 151-214 D-TYPE SOCKET PIN OUT VIEW 214535 SOCKET CRIMPS FOR D-TYPE CONNECTOR FARNELL 151-225 FROM WIRE ENTRY SIDE 235328 7/0.2mm WIRE SINGLE/ANY COLOR (SEE NOTE 2) FARNELL...
  • Page 162 PARTS LIST ITEM DESCRIPTION PART NO. SUPPLIER SUPPLIER REF. QTY. CONN,TERM BLK,12POS,3.81MM,SOC 268262 FARNELL 370-5079 7 .3 CONN,TERM,BLK,12POS,COMBICOM, 080169 FARNELL 370-5523 Cable Assembly Diagram FERRULE,24AWG,BLU INSUL, 8MM L 200540 157-1200 SCALE 4:1 7/0.2mm WIRE SINGLE/ANY COLOR (SEE NOTE 2) 235328 FARNELL 1172870 4.6m...
  • Page 163 M [FT] (ITEM 13) (ITEM 19) WIRES COLOR(S) ITEM # (ITEM 19) (ITEM 12) SEE TAB 088717 CONDUIT,FLEX,LT,20MM N-MET,RF 091663 CABLE ASSY,SH/RMT CPU,APEX,.5M .5 [1.64] 1.85 [6.07] PL2-1 RED-BLUE OSC. OK/FAULT PL1-1 SEE TAB 080174 CABLE,SHLD, 12/C,22AWG 089608 CABLE ASSY,SH/RMT CPU,APEX,2M 2 [6.56]...
  • Page 165 The utility Flash166 uses COM1 by default. If you want to use a serial port other than COM1, edit 3) Power up the Apex. There will be little if any indication on the Apex that a CPU is in the the batch files and add one of these command flags to select the appropriate port to the Flash166 The Apex metal detector uses a pair of microprocessors or CPU's to perform its tasks.

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