GPT 120 FAQS

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POWER LINE NOISE ISSUES WITH GROUND FAULT PROTECTION EQUIPMENT
Due to the high sensitivity of ground-fault-current detection circuits, it is possible that excessive line noise on the power source wiring can cause an alarm. This can occur in the form of a ground-fault alarm, a stuck-relay alarm, or a ground-fault circuit alarm.

This type of alarm can be caused by switching high-power loads, inductive loads, or any excessive arcing during operation of a contactor that is on the same circuit branch. It may also be caused by extreme levels of RFI (radio-frequency interference) in the area.

1. USE A SEPARATE CIRCUIT FOR THE HEAT CONTROL
We recommend providing a separate circuit for the heat control, which is not shared with other equipment. In particular, any equipment that is electrically noisy needs to be on a different circuit branch and installed a safe distance away.

2. USE AN EXTERNAL NOISE FILTER
The controller’s immunity to excessive conducted noise from contactors, inductive loads, and other sources of RF interference can be increased with an external noise filter. A simple way to provide additional filtering is to route the power supply cable through a ferrite toroid ring, with as many turns as possible. This will further attenuate the conducted RF noise.

One device that works well is the Palomar Engineering Ferrite Toroid Ring model F240-77. This is 1.4” ID and 2.4” OD, material type 77(Figure 1). There are larger sizes and other suppliers of these which also can work. We purchased our Ferrite Toroid Ring from here, but they can also be purchased at many electronic supply companies or on amazon.com.

This should be installed on the power line (source) cable to the controller (e.g. GPT or FPT), and placed near the controller’s housing (Figure 2). If the controller is fitted with conduit for the wiring to the power panel, the toroid can be placed just inside the power panel, at the end of the conduit (Figure 3). Three turns of the entire cable through the toroid are recommended; if more can be fit that will work better – the attenuation of noise is proportional to the square of the number of turns. A larger toroid can be used to accommodate more turns of the wire.

3. ADJUST THE GROUND FAULT THRESHOLD
In some situations, the ground fault threshold can be increased, and this will improve the noise immunity. On the GPT 130 and GPT 230, the ground-fault alarm current threshold can be adjusted from 1 mA to 300 mA, and the default setting is 30 mA. A higher setting will be more tolerant of electrical noise on the power line.

HOW DO I SET UP MY GPT FOR A RTD SENSOR?

The GPT unit comes with a thermistor (two thermistors with the GPT 230) but is also compatible a 2-, 3-, or 4-wire RTD sensor. The diagram illustrates the correct wiring and DIP switch configuration for each temperature sensor wiring scheme. It is important that you also navigate to the Sensor Type screen and select the type of sensor being used. * The GPT comes set up for use with the provided Thermister sensor.

The provided thermistor sensor will work for heat-trace applications where the operating range is between -40°F and 230°F (-40°C and 110°C). For applications that require a larger temperature range an RTD sensor is needed. With an RTD sensor and the GPT 130 or GPT 230 you can accurately monitor and control for temperatures from -99.9°F to 999°F (-73.3°C to 537.7°C). For more information about installing a 2-, 3-, or 4-wire RTD sensor or the provided thermistor consult the GPT 130 or GPT 230 manual or installation sheet.

GPT temperature RTD sensor wiring

ETI TRACON – HEAT TRACE – HELPFUL TIPS

TRACON FAQ’S – FPT-130

 

CAN THE UNIT INTERFACE WITH BMS? CAN IT COMMUNICATE WITH BACNET OR MODBUS?

No, the FPT 130 provides a summary alarm via a dry contact relay.  This relay is energized whenever the unit is powered.  So, with power off the NC contact is closed, and the NO contact is open.  When the unit is powered these are in the opposite state.  A fault will de-energize the alarm relay and close the NC contact.  This allows for a default, power loss alarm without power.

 

MAX ALLEN

MAX ALLEN

Sales Associate

(O) +1 574-999-1226

mallen@networketi.com

 If you have any questions regarding any of our products please feel free to contact me any time at +1-574-999-1226 or email me at mallen@networketi.com

NETCOM FAQS – ADH NETCOM

HOW CAN I CHANGE THE PRESSURE SETTINGS ON MY NETCOM?

 

Establish communications with the dehydrator through the Ethernet interface (default IP address from the factory is 192.168.52.9) and navigate to the configuration page.  Here you can change the low pressure alarm, low pressure limit, high limit target and high pressure alarm settings.  You can also select between psig or mbar and small or large system settings.

ETI IS GOING PAPERLESS

Why the change?

In an effort to become more streamlined and to do our part for the environment, ETI is moving to a paperless system for all of our product Data Sheets, Installation Guides and Manuals.  Moving forward, all of our product lines; Snow Switch, Tracon and Netcom, will have a scannable QR Code on them that will lead the end user and/or installation expert to the ETI Product Supporting Document Library.  The Document Library will contain the most up to date information on all of the products in addition to information on our Legacy products.  All of the documents housed in the Document Library are available to download and print at your convenience.

How does it work?

 

NEW ETI PRODUCT ARRIVES AT CUSTOMER LOCATION

Need Product Documentation In The Field

If you have any questions regarding this most recent update to our procedures please feel free to contact our Sales Team Sales@networketi.com , +1-574-233-1202 or send us a message using the ETI Chat feature on our website.

 

 

Heat Trace with Plastic Pipes

Heat Trace with Plastic Pipes

Heat cable can be used on plastic pipes but the plastic’s durability and thermal properties must be considered. Plastic has approximately 125 times the thermal resistance than steel but is also more susceptible to damage from direct high temperatures. The key to heating plastic pipes is to use a lower temperature and distribute it as evenly as possible.

It is always a good idea to use a heat trace system with an automatic thermostat and control, but especially so when using heat trace on plastic pipe. An automatic heat trace control can monitor and maintain the system’s temperature, alarm for problems, and shut off the heat cable to prevent damage.

There is heat cable designed specifically for plastic pipes that is self-regulating and has limited wattage. Self-regulating heat cables have a conductive core between two bus wires that becomes more conductive when cold. This system increases the power to the cold spots and decreases it to the warmer areas, which provides a more even heat source.

The manufacture of the plastic pipe should be able to provide information as to the maximum temperature and how close heat cable can be spaced or wrapped on the pipe to avoid damage. Some applications may require heat cable to be applied to opposite sides of the pipe at a lower temperature to distribute the heat more evenly, avoiding one direct area of concentrates heat which may damage the pipe.

It is recommended to install a foil material between the pipe and the heat cable to avoid direct contact and help provide a more even heating. If doing this place the heat trace control thermostat directly onto the pipe with no foil over it or between it and the pipe to ensure a more accurate reading.

You can use heat cable on plastic pipes as long as you follow precautions, such as determining your pipe’s thermal capacities, selecting a self-regulating, low wattage heat cable and using an automatic heat trace control with safety functions. Following these guidelines will help prevent damage and increase the life of your heat trace system.

 

MAX ALLEN

MAX ALLEN

Sales Associate

(O) +1 574-999-1226

mallen@networketi.com

 If you have any questions regarding any of our products please feel free to contact me any time at +1-574-999-1226 or email me at mallen@networketi.com

SNOW SWITCH FAQS – PD-PRO

WHY DO I HAVE A RED GFEP LIGHT ON?

 

The GFEP indicator will come on when a ground fault occurs in one of the heater circuits.  The insulating resistance of the heater cable is breaking down or the cable has been damaged allowing current to pass to ground thru an incorrect pathway.  Left un-repaired the cable could cause a fire if it continues to be powered.

 

When a ground fault is detected the controller will not allow power to be applied to the heater circuits until the problem is corrected.  You can isolate the offending heater by removing all the heaters and reinstalling them one at a time to discover the heater with the fault. An alternative to this method is to use a Meg-ohm tester and test each heater leg per the manufactures specifications.

 

You will need to contact the heater manufacturer for instructions on how to locate the problem and fix it. Most heaters can be repaired with repair kits or splice kits but the manufacturer will be able to provide the details.

FREQUENTLY ASKED QUESTIONS – TRACON TEMPERATURE CONTROLLER

Temperature Controller – GPT-130

 

 

 

 

 

 

 

 

QUESTION –

WHY AM I GETTING A GROUND FAULT WHEN THE GROUND FAULT CURRENT IS SO LOW?

 

ANSWER – 

The GPT-130 displays a number of alarms, beside the ground fault it will also alarm for low current.  If you have disconnected the load to trouble shoot a possible ground fault in the heater cable, then you probably have a Low Current Alarm and a very low default ground fault current reading.

You can tell the difference by looking closely at the display, it will tell you what the alarm is for.  If you want to clear the low current alarm so you can test the controller then go into the configuration menu and disable the Low Current Alarm.

Remember to re-enable the Low Current Alarm when you are done testing and ready to put the unit back into service.

 

  Tracon-Model-GPT-130-Manual

MAX ALLEN

MAX ALLEN

Sales Associate

(O) +1 574-999-1226

mallen@networketi.com

 If you have any questions regarding any of our products please feel free to contact me any time at +1-574-999-1226 or email me at mallen@networketi.com

ETI IS HIRING – PARTS & SERVICE SPECIALIST / CUSTOMER SERVICE

ETI SOUTH BEND IS HIRING

Position Available

ETI is an equal opportunity employers. We offer competitive wages and great benefits.

ETI – SOUTH BEND, IN

  1. Parts & Service Specialist / Customer Service

For more information, or to apply for these positions, please contact ETI HR representative:

Pennie Ritter

Pennie Ritter

HR Manager

(o): +1 574-999-1204

(m): +1 317-519-5766

pritter@networketi.com

ANTHONY MACRI NAMED ETI’S DIRECTOR OF ENGINEERING

TUESDAY, SEPTEMEBER 29, 2020 (SOUTH BEND, IN) The ETI Network of Companies (ETI, ETI Fab, and ETI Controls) is proud to announce the promotion of Anthony Macri to Director-Engineering. Anthony is a proven leader at ETI with over 5 years of experience as an Electrical Engineer.  In his first year with ETI, Mr. Macri’s background and knowledge were vital in the creation of ETI Controls (ETI’s In-house Board Building Division).

 

“Anthony was influential on The ETI Network Grand Strategy creation and is now leading the execution of the plan” stated Ben Crawford President & CEO”.  We are excited he accepted the position and with his energy and skill he will create an environment of speed and innovation of ETI custom designed products while launching private label manufacturing for new customers”.

 

Anthony received a B.S in Electrical and Computer Engineering Technology from Purdue University.  Prior to joining ETI, Anthony held the position of Electrical Engineer at Roush Industries in the Detroit area with a focus on wire harness automotive engineering. 

 

“I’m very excited about this new opportunity here at ETI,” Macri stated.  “ETI has established a great team of industry experts over the years and it is truly an honor to work with them every day.  With a continued focus on quality and product development, I see great things on the horizon for the entire ETI Network of Companies.”

September Is Sensor Placement Month At ETI

SENSOR PLACEMENT FOR SNOW & ICE MELT APPLICATIONS

 

A great number of service calls come in with the common problem of the heaters not coming on even though it is snowing outside or there is ice buildup. After trouble- shooting the system it is discovered that the equipment is fine but there is no snow or ice on the sensor.

 

The proper placement of sensors is critical for the snowmelt system to operate. This is especially true if only one sensor is used, multiple sensors can be a little more forgiving for incorrect placement but to get the most out of the system it would be advisable to locate as many sensors in the “sweet spot” as possible.

 

The best person to determine the sweet spots for the sensors is the installer but to do so the installer needs to consider several parameters when considering the site and the final location of the sensor or sensors. These include but are not limited to:

 

          1.  Prevailing winds

          2.  Obstructions

          3.  Orientation of buildings and their affects on snow and drift patterns

Jeremy Crawford

Jeremy Crawford

Business Development Representative

(o): +1 574-999-1274

(m): +1 317-450-3200

jcrawford@networketi.com

1850 N Sheridan St
South Bend, IN 46628
+1 574-233-1202

INTRODUCING THE ETI CHAT BUNCH

Have a question you can’t find the answer to?  Just click the LETS CHAT bubble on any page and talk to a member of THE ETI CHAT BUNCH today.  

ETI IS HIRING – Shipping & Receiving Clerk

ETI IS HIRING

Positions Available

ETI is an equal opportunity employers. We offer competitive wages and great benefits.

ETI – SOUTH BEND, IN

Shipping & Receiving Clerk

For more information, or to apply for these positions, please contact ETI HR representative:

Pennie Ritter

Pennie Ritter

HR Manager

(o): +1 574-999-1204

(m): +1 317-519-5766

pritter@networketi.com

FREQUENTLY ASKED QUESTIONS FOR SNOW AND ICE MELT

Snow & Ice Systems – APS-3C

 

 

 

 

 

 

 

 

QUESTION – Can I simulate a sensor call for heat to test the system?

 

 

ANSWER – Yes, by putting a jumper between pins 1 and 2 of the class two terminal blocks the system will respond as if the sensor were seeing snow conditions.  The snow and heat indicators will come on and relay or contactor will be pulled in.

 

  Snow-Switch-Model-APS-3C-Manual

MAX ALLEN

MAX ALLEN

Sales Associate

(O) +1 574-999-1226

mallen@networketi.com

 If you have any questions regarding any of our products please feel free to contact me any time at +1-574-999-1226 or email me at mallen@networketi.com

8 SIMPLE STEPS FOR MAINTAINING YOUR ETI SNOW & ICE MELT SYSTEM FOR WINTER

Winter is right around the corner and now is the time to inspect your snow and ice melt system and preform any necessary maintenance. Routine inspection and basic maintenance will keep your snow and ice melt system functioning efficiently for years to come. We have created a list of steps to take to make sure your snow and ice melt system is ready to go.

8 Simple Steps For Winter

  1. CLEAN OUT GUTTERS AND DOWNSPOUTS
  2. CHECK THAT SENSORS ARE CLEAN AND CLEAR OF DEBRIS
  3. CHECK FOR PROPER DRAINAGE
  4. ……….
  5. ……….
  6. ……….
  7. ……….
  8. ……….

DOWNLOAD THE ENTIRE LIST ALONG WITH HELPFUL TIPS BELOW

MAX ALLEN

MAX ALLEN

Sales Associate

(O) +1 574-999-1226

mallen@networketi.com

 If you have any questions regarding any of our products please feel free to contact me any time at +1-574-999-1226 or email me at mallen@networketi.com

NANCY WATSON NAMED ETI’S CUSTOMER OPERATIONS TEAM LEAD

(SOUTH BEND, IN) ETI is proud to announce the promotion of Nancy Watson to Customer Operations Team Lead, effective immediately.  ETI's Customer Operations Team will manage requests for quote, order entry, order status, technical questions, application questions, Data Sheet and Manual requests, assisting customers with questions regarding exporting, missing invoices and the availability of all ETI products.  Nancy will also oversee the ETI RMA department ensuring all requests are processed in a timely manor.  With the support of  ETI's large Team of experienced engineers and technical specialists, ETI's Customer Operations Team will have a complete library of ETI product data at their fingertips.

"ETI is very excited to have Nancy in charge of our Customer Operations Team," stated Patrick Bartell, ETI CSO.  "One of our key initiatives at ETI is customer service.  Being able to quickly and accurately handle incoming customer issues is key in ensuring the success of our customers.  Nancy's commitment to the customer has always been her strongest trait and we can now utilize her expertise as a mentor and leader to the entire Team."

 

"I am very happy and excited to accept my new responsibilities," stated Watson. "I am looking forward to assisting with the revamping of our Customer Operations so we can have an even better relationship with our customers."

 

 

ABOUT ETI

ETI, based out of South Bend Indiana, has been a world leader in sensors and controls for snow and ice melt systems, heat trace, and microwave waveguide dehydration for over 50 years. ETI's engineering and production teams work with their customers to design and manufacture solutions to their problems with a focus on energy efficiency and dependability. ETI was founded in 1968 and began producing the first Snow Switch® sensing and control products for commercial deicing in the industry. Having been awarded numerous patents for technologies used in snow and ice detection, condensate and humidity control, ground fault and arc detection, energy management, power distribution, and air pressurization systems, ETI has grown into a trusted name worldwide for environmental sensors and controls.
For Additional Information ETI
Contact: Jeremy Crawford
Business Development Representative

o: +1 574-999-1274

jcrawford@networketi.com

1850 N. Sheridan St.
South Bend, IN 46628

www.networketi.com

 

ETI IS HIRING

ETI IS HIRING

Positions Available

ETI is an equal opportunity employers. We offer competitive wages and great benefits.

ETI - SOUTH BEND, IN

  1. Quality Manager

For more information, or to apply for these positions, please contact ETI HR representative:

Pennie Ritter

Pennie Ritter

HR Manager

(o): +1 574-999-1204

(m): +1 317-519-5766

pritter@networketi.com

NETCOM WAVEGUIDE DEHYDRATION PRODUCT SPOTLIGHT – NETCOM ADH

NETCOM ADH

Waveguide Automatic Air Dehydrator with Ethernet Communications

The ADH NETCOM automatic waveguide dehydrator supplies low pressure dry air to keep waveguide and coaxial cable dry. Output pressure is configurable between 0.10 psig and 7.50 psig (7mbar – 517mbar) in 0.01 psig (0.67mbar) increments. Factory default pressure is 0.5 psig (34.5mbar). Operational monitoring and alarms are software based making them highly configurable in the field. Future software features can be installed while in service over the internet or local Ethernet network.

  • Network-ready
  • Standard Front Panel Display

FEATURES

  • Provides dry pressurized air to ensure signal quality of antenna waveguide and dielectric coaxial cable
  • Highly configurable to meet the needs of wide ranging applications
  • Programmable operating pressure range: 0.10 psig – 7.50 psig (7mbar – 517mbar)
  • Brushless compressor for long life
  • Future-proof software based features allow updates and upgrades while in service
  • Remote monitoring and control with web interface or SNMP
  • Configurable Master/Slave operation
  • Ethernet, RS-422/485, RS-232 and alarm relay outputs for compatibility with nearly any system
  • Front panel display allows for IP configuration and status monitoring when no network is available
  • Simple power connections between 100 and 240 VAC, inclusive, or ±20-75 VDC
  • Small, light weight chassis with multiple mounting options makes installation easy
  • Low energy use minimizes operational costs
  • Quiet operation
Jeremy Crawford

Jeremy Crawford

Business Development Representative

If you have any questions or would like additional information regarding any of our NETCOM products, please reach out to me directly at 574-999-1274 or jcrawford@networketi.com

(o): +1 574-999-1274

(m): +1 317-450-3200

jcrawford@networketi.com

1850 N Sheridan St
South Bend, IN 46628
+1 574-233-1202

ETI GIVES YOU THE CONFIDENCE TO DARE MOTHER NATURE – CHECK OUT OUR LINE OF PRODUCTS

From coast-to-coast and station-to-station, ETI’s line of products keeps the wheels of commerce rolling by holding Mother Nature’s worst at bay.

 

ETI’s Snow Switch line of Snow & Ice Melt Sensors and Controllers offer the most technically advanced thermal solutions in the industry.

Regardless of your industry, when precise heat-trace control is required, Tracon is the brand name preferred by leading systems designers and engineers around the globe.
MAX ALLEN

MAX ALLEN

Sales Associate

(O) +1 574-999-1226

mallen@networketi.com

 If you have any questions regarding any of our products please feel free to contact me any time at +1-574-999-1226 or email me at mallen@networketi.com

ETI TRACON – HEAT TRACE – HELPFUL TIPS

POWER LINE NOISE ISSUES WITH GROUND FAULT PROTECTION EQUIPMENT

Due to the high sensitivity of ground-fault-current detection circuits, it is possible that excessive line noise on the power source wiring can cause an alarm. This can occur in the form of a ground-fault alarm, a stuck-relay alarm, or a ground-fault circuit alarm.

This type of alarm can be caused by switching high-power loads, inductive loads, or any excessive arcing during operation of a contactor that is on the same circuit branch. It may also be caused by extreme levels of RFI (radio-frequency interference) in the area.

 

1.  USE A SEPARATE CIRCUIT FOR THE HEAT CONTROL

We recommend providing a separate circuit for the heat control, which is not shared with other equipment. In particular, any equipment that is electrically noisy needs to be on a different circuit branch and installed a safe distance away.

 

2.  ADJUST THE GROUND FAULT THRESHOLD

In some situations, the ground fault threshold can be increased, and this will improve the noise immunity. On the GPT 130 and GPT 230, the ground-fault alarm current threshold can be adjusted from 1 mA to 300 mA, and the default setting is 30 mA. A higher setting will be more tolerant of electrical noise on the power line.

MAX ALLEN

MAX ALLEN

Sales Associate

(O) +1 574-999-1226

mallen@networketi.com

 If you have any questions regarding any of our products please feel free to contact me any time at +1-574-999-1226 or email me at mallen@networketi.com

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