SMX2200 Alarm "Batt Temp Sensor"

[Anonymous user]

Smart-UPS SMX2200HV with XLBP SMX120BP ext batt pack, both new at the start of the year. We intermittently get an alarm "Batt Temp Sensor", and then Status - Battery Temp has the field empty ie "--°C". Alarm clears by itself after some hours, and the actual Batt Temp is displayed again. The UPS is in 22°C air conditioning. Sometimes it happens near daily, beeping away; other times there is a fortnight or more between occurences.

I did a Forum etc search. Internal battery is definitely connected eg unplug external batt, and the displayed runtime halves.

Im concerned habituation to this alarm will delay response to another alarm.     ~Thanks, Chris

[BillP]

It is probably a faulty sensor, in my smt unit it is just a cheap thermistor in the battery bay, it may have been hit replacing batteries. I doubt you will get a genuine part but I expect it will be a 10 or 50ohm sensor and not that difficult to splice in unless you get a matching plug.

[Anonymous user]

Yes, you're in order saying its the battery sensor.

Still check the sensor its possible the sensor is blinded by dust. Just do a physical check on the sensor and confirm what the actual fault is.

[Anonymous user · Accepted solution]

Thanks, will check. Bit of a mission, I havent had the batts out of the main unit before, plus the thing is buried.  Cheers