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

Yes, you will need to open the cover and locate the wires going to the sensor.  Remove the wire nuts from the white and black wires.  By shorting these wires together you will simulate the sensors call for heat and turn on the controller.

Are there any voltage measurements that will help determine if the unit is working properly?


Aside from checking the input voltage from the circuit breaker you can also check the voltage between the red and black sensor wires.  The controller should supply 16VDC to the sensor over these wires.

What voltage measurement will tell if the sensor is detecting snow?


Measuring the voltage between the black and white wires of the sensor will tell you if the sensor is detecting snow and calling for heat.  When the sensor is above 38F or dry the voltage will be 16VDC.  When the sensor is below 38F and wet the voltage will be 0 VDC.  The sensor must be both wet and cold to call for heat.

Why won’t the sensor turn on the system when it is snowing outside?


There can be several reasons for this.  First start by checking the sensor supply voltage between the red and black wires. It should be close to 16 VDC.  If there is no voltage then ensure that there is power to the controller.  If you have power to the controller but no voltage to the sensor then the controller is bad and will need to be replaced. 


If you have already simulated a sensors call for heat and the controller is not suspect then examine the wiring to the sensor, damaged wires can cause loss of signal from the sensor or power to the sensor.


Lastly the snow sensors must see both a temperature below 38F and moisture on the moisture grid.  High wind conditions can keep snow from accumulating on the moisture grid so consider how the weather is affecting the snow sensor.  High accumulations can bury the sensor and allow the moisture sensors to melt a cave in the snow, which will not allow snow to touch the grid.  This igloo effect will render the sensor inoperative. This effect can be reduced by the use of a moisture cup on GIT sensors and by placing CIT and LCD sensors at a slight angle to allow gravity to help remove excess snow.

How can I test the snow sensor?


The sensors require a temperature below 38F and moisture on the moisture grid.  The GIT-3A has a protruding tube that contains the temperature sensor and the moisture grid is on the opposite end.

A moist rag or paper towel and a freeze spray or ice can be used to test the sensor.

Is there a way to make the system come on with temperature only?


The system is designed to turn on and off, as the weather requires heat to deal with snow or icing conditions.  Although a thermostatic dry contact switch can be used to override the system on for temperature alone, it is not recommended since it will reduce the efficiency of the system.  Running the heaters on cold days that do not have snowfall will not hurt anything but your budget.

Can I use the control to power heat cables directly?


Yes as long as the total load does not exceed the maximum current rating of the internal relay contacts, which is 26 amps resistive.

Do I need to supply the controller with a ground fault breaker?


Yes, using a ground fault breaker is required to provide protection for the heater tapes used with this product.  Failure to do so will put the installation at risk for fire if the heaters short.  You will want to use the GFEP breaker that has the higher ~30mA trip standard required for equipment protection.


Can I use this system to control external contactors to work with larger loads?

Yes, this system is intended to be used in either switching or pilot duty mode so you can use it to directly control the heaters or indirectly control them through an external contactor.

Can I use a GIT-1 sensor to replace the sensor on my GIT-3A controller?


In a word no!  The GIT-1 is meant for use with the newer APS-C series controllers, EUR-5A controller and the upcoming PRO series controllers.  The GIT-3A sensor is unique to the GIT-3A.



Can I extend the wires and how far away can I locate the sensors?

Yes! The sensor wires can be extended up to 500 feet with #18 awg wire and 2000 feet with #12 awg wire.


ADH NETCOM Software, version 2.19

Changes in this update:

This update is to reduce the odor that occurs during regeneration on new units.

While the issue(s) fixed in this version will not affect all installations, it is recommended that all units in the field with earlier software versions be updated.

This update includes all previous updates.

After installing this update the main page should read:

Main Firmware: ADH 3.19

Comm Firmware: ADH 2.19

Files included:




Installation Instructions

  1. Download and save it to your local drive, thumb drive, or similar media. For the purposes of these instruction we will assume that you chose to save the file in your “My Documents” folder.
  2. Uncompress the contents of the zip file.
  3. Open the windows command window by clicking on start, run and type “cmd” then click OK. This will open a black screen window with dos command lines. You will also see a line like “C:Documents and Settings(User)>” where (User) is the name of the directory the “My Documents” folder is in. A flashing cursor will be next to the >
  4. Using the windows command line:
    • Change directories to the location you uncompressed the files to in step 2. You can do this by typing “CD my documents” and pressing return. The “CD” is the dos command for change directory to the directory you list. “CD” should take you all the way back to the root directory (C:). Typing “CD..” will take you back one directory (C:Documents and Settings). If you make a typing mistake and there is no directory if you hit the return then it will return the line unchanged.
    • Type “cscript ncfirm.vbs” and press return. This will start loading files to the NETCOM. The is the default IP address of the NETCOM, which you can change later, if you wish to suit your network. If you have already changed the IP address then use that address instead of the default.
    • Wait for the command to complete. (This will take some time so be patient. Once the lights begin flashing on the dehydrator it is alright to exit the windows command line if you wish but the installation has another step so you may want to wait.)
  5. You will be prompted to wait for the front panel lights to stop flashing while the unit reboots. Wait for the lights to stop flashing before continuing.
  6. Using the windows command line:
    • Type “cscript ncpages.vbs and press return. This will again start loading files to the NETCOM.
    • Wait for the command to complete.
  7. Open a web browser and go to http://[your_ip_address or your_network_name]/. You should see the new user interface.


Mason's banner

MONDAY, JUNE 5, 2023 (WESTFIELD, IN) The ETI Network of Companies (ETI, ETI Fab, and ETI Controls) is proud to announce the hiring of Mason Tran for the Marketing Associate position and the continuation of top talent that broadens our global ability to expand support and develop our products. Mason has proven his leadership and marketing experience through ETI’s marketing internship program and looks forward to continuing to drive ETI’s marketing efforts within a full-time position.

“Having the opportunity to work alongside Mason the past year made it evident that The ETI Network of Companies and all its partners would greatly benefit from his abilities.” stated Ben Crawford, CEO.  “He brings a dynamic look into the marketing of our products and a unique knowledge of product positioning. “

Mason received a B.S. in Business High Distinction with a Major in Marketing from IUPUI Indianapolis. With a multilingual background, Mason has achieved his professionalism and experience through working as a Teaching Assistant at IUPUI as well as creating his own content for social media platforms.

“In this company, success isn’t measured by the products we sell, but by the relationships we build. Our customers aren’t transactions, they’re partners in our journey. When they succeed, we succeed. Our shared story is our greatest success. And I am genuinely thrilled to be a part of this shared success, helping to shape the journeys of our customers, learning from them, and growing alongside them every step of the way.” Mason stated.

ETI Network of Companies Private Label Capabilities – Have a product idea in mind? We can build it for you!


For over 55 years, The ETI Network of Companies has been the premiere choice for OEMs seeking fully customizable private label solutions from a partner that has served customers reaching over 100 different countries.  Our products branch out in various sectors of the electronics, metals, and plastics industries. Backed by our track record of proven products, design engineering, enhanced product testing and our insular manufacturing and assembly concept, we provide cost effective, highly innovative, and highly dependable products you can rely on.  We can help from the beginning of product development and take your product all the way to UL & CE product registrations.  Let our team move with speed and eliminate timely delays in the development and manufacturing processes. Have a product in mind? We can build it for you!


Our global markets include Telecommunications, Satellite, Snow & Ice Management, Heat Tracing, and General OEM customized built controllers and sensors. Deemed “Essential Business” by the U.S Federal Government during the 2019 COVID-19 crisis, our products are relied upon and trusted in mission critical systems.  To further support our insular initiative our Network manufactures internally printed circuit boards, enclosures, mill/lathe machining, welding (Robotic, Tig, Mig), fabricating, stamping and complete assembly down to the finest details. Find out today why OEMs, Government & Military agencies around the world rely on and trust The ETI Network.

Did You Know?



Did you Know?  ETI Network has added two distinct manufacturing capabilities.


ETI manufactures and assembles much more than electronic equipment! ETI Fab can fulfill your machining, fabricating, and welding needs. In 2019, Fab was founded in Westfield, IN to take on the constant demands of machining and fabricating. This has allowed the Network to become more insular and better control product quality and delivery. Our diverse employee base has many years of experience in disciplines from metal fabrication to CNC machining with various materials, including ferrous, non-ferrous, aluminum, bronze, copper, and plastics. Check out the ETI Fab website for more information! Link:


Also established in 2019, the ETI Controls located in South Bend, IN, can design and build your printed circuit board needs.  With our new Surface Mount Technology fully automated line equipped with Automated Optical Inspection has the capacity and resources to completely build and assemble your electronic requirements. The Network has expanded into private label of custom controllers and sensors. This has expanded core capabilities and private label initiatives tremendously and allows to better control our supply chain.


Have a question? Just ask your favorite ETI Network salesperson for more information!

Robotic Multi-Station Weld Cell Acquisition Announcement

In an effort of improving safety, accuracy and repeatability, The ETI Network of Companies is proud to announce the latest acquisition of an OTC Daihen Robotic Multi-Station Weld Cell. With “Speed is Our Weapon”, the new Cell diversifies the types of steel, stainless steel and aluminum used at the ETI FAB facility located in Westfield, IN. Along with the new cell, Camtek Optisolutions software was chosen to accurately and efficiently produce tooling and fixtures to support the Robotic Weld Cell.  This allows the team to create and design prototype and production fixtures in-house.


OTC Daihen, Inc. has a long history and is well-known for precision, quality, and minimal weld splatter. “Automation and the concept of the Smart Factory is a goal that we strive towards building every day at The ETI Network of Companies. First and foremost, the new weld cell enhances safety while significantly increasing part production. Further, we strive for continuous improvement in product quality, reliability and reducing variation in our processes.  Our goal is to be responsive to customers everchanging needs.” – Ben Crawford, President and CEO of ETI.

ETI & ETI FAB Are Hiring!


Positions Available

ETI & ETI FAB are equal opportunity employers. We offer competitive wages and great benefits.


  1. Firmware Engineer

For more information, or to apply for these positions, please contact ETI & ETI Fab HR representatives, here:



  1. General Laborer Position for 2nd Shift; Monday – Friday 3PM-11:30pm   

For more information, or to apply for these positions, please contact ETI & ETI Fab HR representatives, here:


What type of wire do I need to extend my lead length? Sensor vs. Thermistor

When installing ETI sensors and thermistors, you may find that you need to extend the leads greater than what’s already provided from the factory. Because the Snow Switch sensors operate at a higher voltage and use higher current than the thermistors, the recommended wire gauge differs between the two. To avoid confusion, we’ve created this writeup to explain our recommendations for extending the leads on ETI’s Snow Switch sensors and thermistors. For Snow Switch sensors, ETI recommends #18 AWG wire for up to 500 ft and #12 AWG wire for anything greater than 500 ft. On several product datasheets, #12 AWG wire is limited to 2000 ft because the average sensor runs 24 volts at 250 mA of current to limit voltage drop and low current issues.


Regarding the temperature sensors (thermistors), the requirement differs because the thermistor runs at 5 volts and approximately 2 mA of current, which is a negligible line loss. The main difference resides in the line resistance. ETI controllers use a 100k ohm thermistor with a negative temperature coefficient, so when the temperature decreases, the resistance increases. Since the thermistors are used for snow melt and freeze protection, the range of resistance used is 2.7Meg ohms (-40F °) to 75.2k ohms (+90F °). This means a single digit degree change will be marked by a resistance change of between 800k ohm per degree on the cold end to 2k ohms per degree on the hot end.


Since #22 AWG wire (which is what is specified on the thermistor) has a resistance value of 16.5 ohms per 1000 ft, it can be observed that the wire gauge will not make a considerable difference in the measurement of temperature. This means it is acceptable to use a #22 AWG wire to extend the cable.


#18AWG wire is 6.51 ohms per 1000 feet of wire and #12 AWG is 1.62 ohms per 1000 feet. It is worth mentioning because the #22 AWG may be the most cost-effective solution compared to the #18 or #12 AWG wire.


With all of that said, if the wire meets the work requirements for insulation and protection of the wire and meets ETI’s wire recommendations, it is acceptable to use #22 AWG or larger to extend the wires for the thermistor, and #18 AWG wire for up to 500 ft and #12 AWG wire for anything greater than 500 ft for ETI’s Snow Switch sensor cables





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.




Sales Associate

(O) +1 574-999-1226

 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



Establish communications with the dehydrator through the Ethernet interface (default IP address from the factory is 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.


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?



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 , +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.




Sales Associate

(O) +1 574-999-1226

 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




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.


Temperature Controller – GPT-130













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.





Sales Associate

(O) +1 574-999-1226

 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



Position Available

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


  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


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



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

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


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


Positions Available

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


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