Author Topic: position of battery temperature sensor (MNBTS)  (Read 536 times)

BAndrews

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position of battery temperature sensor (MNBTS)
« on: June 07, 2016, 01:51:02 PM »
Hi All,

I have a MNBTS that came with a system and I'm trying to determine the best way to mount it.  Currently, the system has four Rolls 6 volt batteries wired for 24 volts.  The batteries are currently sitting in the open with about a half-inch air gap between the batteries.  Where is the best place to stick on this sensor?

Note:  Batteries will be placed in externally vented cabinet after shakedown.  Thanks!




4 Star Solar power center w/4KW Magnum inverter, (2) Midnite Solar Classic 150,  3.5 KW PV [(eight) Solarworld 265W, (4) Solarword 345W],  S550 (24 volt) Rolls Surrette battery bank.

Vic

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Re: position of battery temperature sensor (MNBTS)
« Reply #1 on: June 07, 2016, 02:03:06 PM »
Hi BAndrews,  Welcome to the Forum,

Place the BTS/RTSes all on the same battery (if you have ones for inverters,  or other charge sources),  about half-way down the side.

Ideally,  would suggest that you place the sensor/s under a piece of Styrofoam sheet,  that has an area for the BTS "hogged out".  You can just tape this styro to the battery if the battery surface is clean.   This foam helps remove the influence of environmental temperature on the sensor/s.

Do you have a copy of the Surrette Battery Manual  (?)  EDIT:   ...  here is the Link if needed:
http://rollsbattery.com/uploads/pdfs/documents/user_manuals/Rolls_Battery_Manual.pdf

In that Manual,  there is a recommendation for Commissioning a new battery bank,   good idea to follow it.

Assume that your batteries are probably L-16 Flooded batteries.  If they are Flooded,  be certain to have one,  or better yet,  several good Hydrometers to accurately measure the SGs of each cell.<

Have Fun,  Vic
« Last Edit: June 07, 2016, 06:12:34 PM by Vic »
Off Grid - Two systems -- 4 SW+ 5548s, Surrette 4KS25 1280 AH X2@48V, 11.1 KW STC PV, 3X MidNite Classic 150 w/ WBjrs, Beta KID on S-530s, MX-60s, MN Bkrs/Boxes.  Thanks MN for Great Products/Service/Support!

CDN-VT

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Re: position of battery temperature sensor (MNBTS)
« Reply #2 on: June 08, 2016, 12:56:07 AM »
Like above post , All good info

VT
Canadian Solar 350W 37.6 VOC  30.6 VMP 8.22 ISC 7.87 IMP ,-15 c +30c max  4 strings in 2 in Series for 24v Classic 150 -1020 Ah  Freezers & fridges ~~~ Second Array same panels of 3sx3 parallel for 24 V Classic 150 -440 Ah Outback Barns & out blds.
48Vdc almost done,11Strings up of 3s11P same panels

BAndrews

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Re: position of battery temperature sensor (MNBTS)
« Reply #3 on: June 08, 2016, 11:25:44 AM »
Hi BAndrews,  Welcome to the Forum,

Place the BTS/RTSes all on the same battery (if you have ones for inverters,  or other charge sources),  about half-way down the side.

Ideally,  would suggest that you place the sensor/s under a piece of Styrofoam sheet,  that has an area for the BTS "hogged out".  You can just tape this styro to the battery if the battery surface is clean.   This foam helps remove the influence of environmental temperature on the sensor/s.

Do you have a copy of the Surrette Battery Manual  (?)  EDIT:   ...  here is the Link if needed:
http://rollsbattery.com/uploads/pdfs/documents/user_manuals/Rolls_Battery_Manual.pdf

In that Manual,  there is a recommendation for Commissioning a new battery bank,   good idea to follow it.

Assume that your batteries are probably L-16 Flooded batteries.  If they are Flooded,  be certain to have one,  or better yet,  several good Hydrometers to accurately measure the SGs of each cell.<

Have Fun,  Vic


Excellent info.  Thanks Vic!

I'm almost into the home stretch.....   :-)


4 Star Solar power center w/4KW Magnum inverter, (2) Midnite Solar Classic 150,  3.5 KW PV [(eight) Solarworld 265W, (4) Solarword 345W],  S550 (24 volt) Rolls Surrette battery bank.