Eriez'
state-of-the-art Digital Control System provides a user-friendly
interface through a menu-driven digital hierarchy. The digital
screen offers alphanumeric displays of all preset functions
or reject occurrences as they take place and also records
the date and time of product changes.
Digital processing and controls on the E-Z Tec DSP Metal
Detector allows fast product changes. The active (present)
product can be changed via the Touch-Screen Interface or
remotely through the RS-485 computer interface connections.
50 different product selections can be stored with each
product selection defining such parameters as sensitivity,
gain, phase, product description and relay states. Unauthorized
changes are eliminated by a four level security code. Data
memory prevents memory loss. The control provides user-specified
self-checking and periodic calibration procedures.
The report menu displays report number, product, date, time,
and magnitude of the reject signal. The internal memory
holds full details of the last 100 rejects for visual review,
counting up to 10,000 rejects. Reports may be uploaded to
a computer via the RS-485 interface port. An unlimited record
of reject reports can be stored on the computer.
Eriez offers free software to monitor the metal detector
with a computer(s). Other manufacturers charge thousands
of dollars for metal detector software. Eriez E-Z Link Windows
software is a very helpful tool for both evaluating the
performance of the metal detector, and determining what
types of metal contaminants are detected. The circular graph
pictured to the right shows different frequencies and 'line
angles' for different types of metals. By evaluating the
graphs you can determine what types of metal are being detected;
ferrous, stainless steel, brass, aluminum, etc., and take
further steps to determine where that type of metal came
from.
ELECTRONICS:
- Bar
Graph will provide a visual indication of the
strength of the detection signal in relation to the metal
size, and is also used to monitor the phasing-out procedure
for products.
- Threshold
adjustment allows for setting of the detection threshold
for minimum and maximum sensitivities.
- Phase
adjustment provides the user with the capability to adjust
the metal detector to minimize product effect and the
ability to peak a response to a particular metal.
- Shift
Register stores multiple detections for precise
rejection of metal. A tachometer input is provided for
variable product speeds.
- Travel
Time is an adjustment controlling delay of the
detection signal output. This will allow time for the
detected contaminant to be positioned at the downstream
reject device (such as, air blow off, pusher arm, etc.).
- Reject
Time is a variable adjustment for extending the
reject output signal. This feature allows the user to
adjust the reject output time from .05 to 60 seconds.
- Output
Relays include two individually programmable
relays, one with two form "C" contacts and the
other with one form "C" contact.
- Frequency
of operation is optimized for the aperture size and the
product to be inspected.
- Product
Speed ranges from 3 to 8000 FPM (.02 to 40 mps)
depending on aperture size.
 Contact
B & H for a Free Site Visit to evaluate your existing
metal detector and/or new application. We'll even bring along
a free Sensitivity Test Card with 1.5 mm ferrous sphere for
you to keep! |
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