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• broken filter bag detectors
• continuous dust emission monitors
• dry solids level probes

Goyen manufactures triboelectric probes for sensing particulate in an air steam. These probes are an advanced form called "tribokinetic".

Two features distinguish Goyen's probes from its competitors. Their probes do not suffer from 'electronic drift', which plagues virtually every other probe on the market. Electronic drift is the term describing a probe's tendency for its signal to wander over time, eventually causing false alarms. This drift can occur in as little as 2 - 3 weeks. Maintenance personnel must re-calibrate the probes regularly in order to prevent this. Many companies have simply disconnected their probes out of frustration in dealing with this problem.

Goyen's probes are impervious to product buildup on the probe sensing rod and have been tested with as much as 1/2" layer of concrete on the sensing rod, with NO loss of signal.

Goyen's probes...

• can easily and accurately detect fine, sub-micron particulate
• are extremely easy to install and set up
• are reliable, providing years of trouble-free and maintenance-free operation
• are LESS expensive than the competitors, particularly when the application calls for more advanced emissions monitoring

One very large ore mining company was a long time user of a competitor's probes. We convinced them to test our probe and theirs in the same duct to demonstrate the problem of 'electronic drift'. Within a couple of weeks, the competitor's probe signal drifted, sending a signal almost twice as strong as originally. As a result, Goyen is now the preferred supplier of particulate emissions probes to this company.

GOYEN PROBES

EMP3 and BBD3

These inexpensive probes share the same Tribokinetic particulate sensing technology as the entire Goyen line, and include adjustments for sensitivity and time delay on the back of the probe head. The BBD3 provides a relay (on/off) type signal for signaling to an alarm that the emissions have exceeded a set threshold, indicating a filter bag failure. The EMP3 provides both a relay signal and a 4 - 20 mA signal which can be sent to a device for display and data logging.

As shown in the following specs,our superior electronics allow these probes to reliably sense up to 10 times smaller particulate than competing probes.

General Specifications

EMP5 / BBD5

These systems include a remote mounted control panel so that the probe's sensitivity, alarm setpoint and time delay may be set from a convenient location. Both the EMP5 and BBD5 come with an LED bar graph display showing the present emissions level and the alarm set point level. The BBD5 provides a (on/off) relay for signaling an alarm when emissions have exceeded a set threshold, indicating a filter bag failure. The EMP5 provides both a relay signal and a 4 - 20 mA signal which can be sent to a device for display and data logging.

EMS4
The EMS4 includes a remote mounted control panel so that all adjustments can be made from a convenient location. Controls include sensitivity, alarm setpoint, time delay, and type of output (instantaneous or averaged).

The EMS4 has 3 output signals: An on/off relay signal for signaling an alarm when emissions have exceeded a set threshold, indicating a filter bag failure. A 4 - 20 mA signal which can be sent to a device for display and data logging. An RS232 signal for output to a computer.

EMS6
The EMS6 emissions monitoring system includes one or more probe heads, which are connected to a personal computer and controlled via software. All adjustments to a probe's sensitivity, alarm setpoint, time delay, and type of output (instantaneous or averaged) are made via software. This powerful system allows a single computer control of many probes, simultaneously graphing each probe's signal and storing the data in a file that can be imported to common spreadsheet software.

Types of Application

Goyen manufactures probes for standard applications, as well as:

• Temperatures up to 600°C (1100°F)
• Explosion proof or intrinsically safe applications
• Sticky product
• Abrasive product
• Corrosive product
• Extremely fine product (as fine as .5 micron)

Typical Applications

• Foundries
• Drywall manufacture
• Mining
• Smelting

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