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Goring Kerr

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Bulletin 21

METAL DETECTORS

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...the closest you can get to absolute certainty that your product is metal free Packaging — Processing

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Goring Kerr Tek 21 advantages: Detect smaller metal particles

METAL DETECTORS "The ultimate safeguard" Modern high-speed processing equipment in the food and pharmaceutical industries obviously brings the benefit of high productivity. The ever-present danger with machinery, however, is that constant friction between moving parts, vibration and normal wear and tear can cause pieces of metal to break away and fall into the product — such things as shavings, fragments of metal foil, screen or mesh, bolts and molds damaged by metal fatigue. In addition, there is the danger of metal contaminants contained in incoming raw material. Processors do not want these metal fragments to damage machinery, of course, but the primary concern is for the consumer. Responsible manufacturers want to do their utmost to protect customers from the hazards of such contaminants. Today, "doing the utmost" means adding the ultimate safeguard to the processing line: the Tek 21 metal detector.

Increased sensitivity in Tek 21 detectors, achieved through advanced circuitry design and improved components, makes it possible to detect metal particles 10% to 27% smaller than before, depending on their shape and orientation. This results in a substantial increase in protection for the consumer.

Set and forget Tek 21 detectors incorporate highly sophisticated electronic components (developed for NASA) that greatly increase the system's stability. This means that maximum sensitivity is maintained at all times and under all conditions without the need to reset phase and balance.

Automatic Self Balancing Self Balancing circuitry automatically and continuously compensates for any changes in operating conditions. The rate of auto-balance is adjusted to achieve optimum performance at any product speed within a specified range.

Pre-set frequency Operating frequencies are pre-set to minimize product and bulk effect problems.

Narrow Zone Detection This feature provides precise operation of the rejection device to reduce the waste of non-contaminated products.

Performance Monitoring Performance Monitoring circuitry continuously monitors the unit to maintain optimum performance, and an automatic alert signals a malfunction. The reject device may also be monitored by this circuitry.

Memory A Memory Unit accepts pulse input to automatically adjust the timing of the reject device for variable belt speeds.

Longer warranty Confidence in the performance of the Tek 21 series enables Goring Kerr to extend its warranty to two years from one year.

Packaging - Processing


Optional with all Tek 21 detectors:

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The "Metal Manager" computer module

The Metal Manager interfaces with a factory computer or can download data to a printer. Metal Manager computer module control panel.

All detector-related operations can be monitored and managed locally from the Metal Manager computer module or from the plant's central computer to which the module can be interfaced. The Metal Manager offers the following advantages:

Integrate with DC/ CIA Monitoring assures that the detector is operating full time and that sensitivity and phase are correctly set for the products being inspected. If required, the Metal Manager can integrate all detector operations within the plant's overall QC/QA program. In addition to recording all detector functions and settings at all times, the Metal Manager records the number cf products rejected, sensitivity, phase, downtime and faults.

99-product program The Metal Manager's memory can store preprogrammed phase and sensitivity settings for up to 99 products that are entered automatically from the plant's computer as each product is processed. Settings can also be keyed in locally as two-digit numbers.

Test records

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To monitor quality control test, the detector is placed into TEST MODE and a metal sample is inserted a number of times, in accordance with plant procedures. The Metal Manager records the time of the test, its parameters and results — providing hard copy if desired.

Detection trends Data provided by the Metal Manager can reveal trends in metal contamination. For example, an increased frequency of metal detection incidents after machinery maintenance shutdowns could indicate a need to improve post-maintenance clean-up before resuming production. Trend data are also useful in identifying raw material shipments that may contain unusually large amounts of metal contamination, or in signalling the beginning of a break-up of machinery that contaminates products with metal particles.

Password entry A password entry system in the Metal Manager prevents unauthorized changes of settings.

Legal aid In today's litigious environment, a record of the operation of your metal detector for any period can be of importance in a legal action. Records can be readily obtained with the Metal Manager by downloading data from the detector to a printer, or accessing the data through interface with the plant's computer system.

Self-maintenance To minimize detector downtime, Goring Kerr has designed the Tek 21 so that most servicing can be carried out by plant maintenance personnel. Self-check diagnostics locate faults in individual sections of circuitry which can be replaced in minutes with plug-in universal modules kept in stock or obtained on overnight delivery from Goring Kerr

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Packaging - Processing Bid on Equipment 1-847-683-7720 www.bid-on-equipment.com

Ilk METAL DETECTORS 3

A complete range of Tek 21 models with the optional Metal Manager computer module is available

MODEL TEK 21 — the "standard" detector in the food industry Model Tek 21 is the latest in a long line of detectors whose reliability and performance has maintained Goring Kerr's position as No. 1 in food industry installations for many years. Tek 21 equipped with the Metal Manager computer module is designated Model Tek 21-C. See specifications below.

SYSTEM 402 for powders and granules System 402 is a drop-through metal detection system incorporating a reject gate for powders and granules. It comes in 21/2", 5" and 71/2" sizes, occupies minimal vertical space and features high sensitivity, and freeflow. Rectangular configurations (8"x 4", 14"x 4", 20"x 5", and other sizes) are also available. System 402 is available with the Metal Manager computer module. For detailed information, request Bulletin GDK-402

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Model Tek 21

Tek 21 specifications:

Sensitivity (Fig. 1) 3.0 —

E E

2.5 — 2.0——

Search head dimensions — 0.12

Figures shown are for detectors up to 18" aperture width. For apertures 19"- 30" wide, add 0.25mm. For detector apertures 31"- 50" wide, add 0.50mm.

— 0.10 — 0.08

1.5 —

— 0.06

1.0-

— 0.04

0.5 —

— 0.02

CC a. cn

2

4

6

8

10

I

1

1

12

14

16

APERTURE HEIGHT IN INCHES



This graph illustrates typical sensitivity for various aperture w dimensions when inspecting non-conductive products. For non-magnetic stainless steel, 0 use ratio 1.5 to 1. When inspecting conductive products, sensitivity will vary due to several factors, and may be higher, equal to, or lower than the values shown.

X +55

/77Z 1.1

Vzx

1/2x 1/2x

B 175

Bx 175

Dimensions & metal free areas (All dimensions are in inches) B

C

X

B

C

X

1 2 3 4 5 6 7

13 13 13 13 13 13 13 14 15

6 51/2 51/2 51/2 51/2 6 6 7 7

10 11 12 13 14 15 16 17 18

16 17 18 19 20 21 22 23 24

7 7 8 8 8 8 9 9 9

8 9

3

Metal-free area

(Fig. 2)

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SYSTEM T6 pharmaceutical detector T6 is the one detector that meets the pharmaceutical industry's requirements for sensitivity and sanitation. The T6 is designed to prevent cross-contamination as tablet production changes or as the detector is shifted from one tablet press to another. The throughput chute, reject gate and cover are removeable for cleaning in less than 30 seconds without tools. The search head is cylindrical polished stainless steel to also facilitate cleaning. Overall height is only 131/2" at a 45° angle. The T6 is available with the Metal Manager computer module. For detailed information, request Bulletin 180. System T6 pharmaceutical detector

MODEL TEK 21 F for film foil packages

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The Tek 21 F metal detector is similar to the Model Tek 21 except that it incorporates special circuitry which enable it to inspect for the presence of tramp metal contamination within film foil packages, with a high degree of sensitivity. A switch allows the operator to set the unit for either standard or film foil packages. Tek 21 F is available with the Metal Manager computer module. Model Tek 21 F

Technical data : 120V, 60HZ or 220V, 50HZ Single Phase Power Consumption 50 Watts Green-Power, Red-Reject Monitoring lights Yellow-Fault : Six circuitry sections Fault Diagnostics are monitored. Reject Timing, Delay : Adjustable - 80mS to 32S Fixed - 24mS Fixed (option) - 2 nanoseconds Power Supply

Reject Timing, Reject Adjustable - 5mS to 14S Note For variable speed, both delay and reject time controlled by pulse generator geared to product speed. : 5-1000 f.p.m. Product Speed For lower & higher speeds contact Goring Kerr Inc. Control output, reject 1 NO., 1 N.C. contact, 1 amp at 250V

Control output, fault Control output TEK 21C Size & dimensions Shielding Sensitivity Types available Mounting on conveyors chutes, ducts or pipes

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: 1 N.O. or 1 N.C. contact, 1 amp at 250V : As above, plus two I/O devices as required. : See Fig. 2. : See Fig. 2. : See Fig. 1. : Aluminum or stainless steel construction. USDA listed, waterproof to NEMA 4 : Rectangular, square or round apertures for horizontal, inclined or vertical installation.

Goring Kerr



METAL DETECTORS 5

SYSTEM 426 pipeline detector

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System 426 is a pipeline metal detector for liquid, semiliquid or paste food products and is available in 2" and 3" dia. pipe sizes. It is designed for use on products such as meat, sauces, pie-filling, liquid chocolate, jam and relish. System 426 complies with USDA and 3A requirements, and consists of a metal detector, a section of nylon pipe, a 3-way pneumatically operated diverter valve, and an air filter regulator. The system can be floormounted or ceiling-suspended. A no-stick, no-leak, all-stainless-steel Reject Valve that ensures an uninterrupted flow of product represents a major advance over traditional problem-prone pistonvalves. System 426 is available with the Metal Manager computer module. For detailed information, request Bulletin 426A.

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System 426 sausage stuker detector

SYSTEM 426 sausage stuffer detector Two models are available: the 426-2H, hinge mounted for Handtmann VF 20 or Vemag DC100 and the 426-2P with floor support and optional casters. Both models are designed for metal detection in sausage stuffer lines and feature special interconnect fittings. The Metal Manager computer module is available with both. For detailed information, request Bulletin 426A.

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System 426 detector

Tek 21 specifications:

Automatic re/ect systems: When metal is detected, the detector's relay can either actuate an alarm, stop the conveyor motor or operate any one of a number of auto reject systems to divert the contaminated product. Goring Kerr systems engineers can advise you of the best reject device for your needs and build it for you. Some of the standard auto reject systems are shown at right.

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1. Air blast blow off Air-operated ram or diverter arm 3. Flap gate 4. Auto reject valve on pipelines 2.

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MODEL SCfor FFS machines Model SC is a compact metal detector system for vertical form, fill and seal machines in the cereal and snack-food 11 industries. Extremely compact models permit easy ' positioning of the detector above the filling yoke of an FFS machine. The control unit can be remote-mounted in any readily accessible location. Model SC is available with the Metal Manager computer module. For detailed information, request Bulletin GDK-163. Model SC

Other Goring Kerr detector models: These special-purpose detectors are not in the Tek 21 series. In their special applications they do, however, have excellent performance capabilities.

MODEL GDK-168 ferrous in foil detector Model GDK-168 provides a high level of sensitivity to ferrous metals for products packaged in aluminum foil, or prepared in aluminum foil plates or trays. The Search Head is extremely stable and requires no calibration adjustments to set up or operate.

Model GDK-168 ferrous in foil detector

MODEL TEK IV The Goring Kerr Tek IV is the first metal detector that individually inspects and automatically phases itself for "conductive" foods such as meat, bread, cheese and dairy products, salads, pizza and pickles. (Conductive foods produce their own signals which can mask the presence of metal.) Tek IV reliably maintains maximum sensitivity at all times, stops the product waste and productiondisruptions of false triggers caused by "conductivity signals" and eliminates the necessity of constantly making manual phase-setting adjustments.

Tek IV metal detector at Dempsters Bread

Conveyor systems: Goring Kerr engineers design conveyors in aluminum and stainless steel to suit all application requirements, or they can integrate detectors and reject systems within the customer's existing materials handling process.

Stainless steel conveyor with diverter arm reject

Aluminum conveyor with retracting pulley reject

Goring Kerr



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METAL DETECTORS

Service The map indicates Goring Kerr service locations and parts-stocking depots that can provide exchange boards • dispatched by courier the same day they are ordered. Development of new signal processing techniques at the Goring Kerr R & D facility.

Los Angeles

Plug-in board inspection at a Goring Kerr service department.

The majority put their trust in Goring Kerr It is significant that in the food industry, where metal detection is most critical, most companies put their trust in Goring Kerr metal detection systems. As a result, Goring Kerr metal detectors have been No. 1 in food industry installations for over 40 years. As a further measure of confidence, Goring Kerr is the only metal detector manufacturer that has been in continuous operation for that period, during which time it has provided uninterrupted and consistent technical Model SC on a FFS machine at The Hostess Frito-Lay Company

leadership in metal detection and the reliable and prompt supply of service and parts. Since its beginning in 1948, Goring Kerr research and development is credited with a series of technological breakthroughs such as the first use of transistors in metal detectors, the development of AutoPhase, Self-Balancing Systems and Narrow Zone Detection - and most recently, the development of Tek 21 detectors and the Metal Manager computer module.

Goring Kerr detector on a cookie line at the Colonial Division of Beatrice Foods Inc.

Goring Kerr Inc. Goring Kerr Inc. 85 Oriskany Drive Tonawanda, NY, 14150 Toll Free: 1-800-268-4292 Tel: (716) 876-6900 Fax: (716) 876-3726 Goring Kerr Canada Inc. 705 Progress Ave., Unit 36 Scarborough, ON., M1H 2Z6 Tel: (416) 438-9711 Fax: (416) 438-2340

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Packaging — Processing


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