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Electric golf carts Harley Davidson, Melex, Pargo, Taylor-Dunn and other Misc. Carts. |
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Thread Tools | Display Modes |
05-10-2016, 08:19 AM | #11 |
Gone Wild
Join Date: Jun 2014
Location: Sunset Bay, TN
Posts: 2,390
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Re: Does a display for Series Motor Temp exist?
What are you willing to spend?
http://www.mcmaster.com/#standard-te...tools/=12cl9r6 Start with the RTD and then pick your display... |
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05-10-2016, 08:28 AM | #12 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Does a display for Series Motor Temp exist?
A good option may be a digital thermometer based on the DS18B20 1-wire interface thermometer sensor.
The actual Maxim chip sensor is in the probe and it just sends the data to the display. While the range is not as great as a Type-K thermocouple, it is very accurate and inexpensive. Here are a couple of examples:
I could not find any of the versions with the 3 meter sensor probes in Fahrenheit scale at Amazon, but they are readily available from Ebay (China) if You want to wait. You can also extend the 3 wires on the probe to reach your dash as needed. |
05-10-2016, 09:18 AM | #13 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,418
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Re: Does a display for Series Motor Temp exist?
The first one looks good, range is high enough and the price is right.
I'm going to try this. How would you suggest attaching the probe? I ordered 3 of the small digital LED type meters with probe to play with. I will post results |
05-10-2016, 10:27 AM | #14 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Does a display for Series Motor Temp exist?
The 30" high temp zip ties cost more than the meter
I would probably use some flue tape as I have left over at home: A duct clamp may work as well: |
05-10-2016, 10:55 AM | #15 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,418
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Re: Does a display for Series Motor Temp exist?
I have aluminum duct tape.
You are not a fan of drilling and inserting the sensor into the case? I see this as the most positive contact. Probably not something everybody would be comfortable with but ? |
05-10-2016, 10:55 AM | #16 |
Getting Wild
Join Date: May 2014
Posts: 84
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Unless it's meant for a pressurized tank, that water temperature probe probably won't go over 212F.
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05-10-2016, 10:56 AM | #17 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,418
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Re: Does a display for Series Motor Temp exist?
Some advertise 275º
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05-10-2016, 11:31 AM | #18 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Does a display for Series Motor Temp exist?
Here is the datasheet for the chip inside the probe, these little devices have been around for a long time:
https://datasheets.maximintegrated.c...ds/DS18B20.pdfI would definitely not feel comfortable drilling holes in the motor, I am afraid I would either screw something up with the drill bit or leave metal shavings behind... Scottyb, since You are good with visualizing and fabricating mounting brackets, how about some small bracket that would use an existing screw already in the Motor case or even the differential mounting bolt? |
05-10-2016, 11:42 AM | #19 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Does a display for Series Motor Temp exist?
Quote:
My setup works okay for my purposes, so I'm not looking very hard, but if I could find an inexpensive thermometer that accepted a Type-K input, I might go with one of these: http://www.mcmaster.com/#3648k24/=12cnldz and bolt it to the case with one of the pole shoe bolts. Then just extend the 3' leads on it to where the display was mounted. ------------- It really doesn't matter too much what type sensor is used (thermocouple, RTD or the chip type) just as long as you can get good thermal contact with the motor case and the display will read high enough. |
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05-10-2016, 11:55 AM | #20 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Does a display for Series Motor Temp exist?
Quote:
2. Mount the sensor in a ring terminal using thermally conductive epoxy. Just have to find a solder type (non-insulated) ring terminal for wires roughly the same diameter as the sensor diameter. |
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