What is the operating temperature allowed for Dahua PTZ's in cold weather?

[Michael James]

So this huge storm hit last night. -4 degrees and with wind chill -25.

I have 2 cameras. Loryta SD49225XA-HNR and SD49425XB-HNR. The 4 meg one started to make a whining noise and would not rotate. I decided to unplug them all.
Kind of sounded like the motor was trying to turn the camera but couldn't.

I am powering both with a POE injector:
AmazonSmile: PoE Injector Adapter, PoE+ Injector 30W 10/100/1000Mbps IEEE 802.3af/at Compliant, Up to 100 Meters (325 Feet) : Electronics

Not sure if these units have a built in heater and/or if you need additional power to run a built in heater if they have one?

 

[looney2ns]

Most likely it is froze up from blowing snow/freezing rain getting wedged in the moving portion of the cam.
Give it a day or two, they will probably be back in operation.
My three PTZ's went through the same scenario last night, and are fine this afternoon.

 

[Michael James]

Im in Louisville. Should I plug them in and see what happens or just wait a couple days? 6 degree low Saturday, 9 degree Sunday, 19 degrees Monday. Not sure with wind chill. Still getting 20 mph winds. I dont want to burn up the motor

 

[looney2ns]

Im in Louisville. Should I plug them in and see what happens or just wait a couple days? 6 degree low Saturday, 9 degree Sunday, 19 degrees Monday. Not sure with wind chill. Still getting 20 mph winds. I dont want to burn up the motor

Did they get any sun today?
If not, I'd probably leave them unplugged until they get a good dose of sun for a few hours.
My plan for weather like we had last night, I stop any automatic PtZ movements, and just leave the cam pointed in one direction during the storm. If you are getting like freezing rain, I park/point the cam away from the prevailing mess and leave it there until the mess stops.

 

[JDreaming]

Yeah, do what looney2ns suggest just stop the auto ptz tour movements of the camera. But you can still view the camera like a non ptz
camera pointing at 1 location. Don't think SD49225XA-HNR got built in heater as this function usually only available on high end cameras.

 

[Michael James]

Will leaving a camera plugged in cause damage? Or do these cameras have an auto turn off that stops the attempt to use the motor so it doesnt burn up?
I dont have touring turning on. Its the motion tracking which is trying to move the camera.

 

[guykuo]

My concern would be all the camera motions that they do upon powerup. If they are already on, leave them alone and use like fixed camera as looney2ns says.
If they are not currently powered up, I would wait until temperatures rise enough for any ice on them to melt.

I have used PTZ motion (manually, not autotrack) during several sequential subfreezing days. Mine did fine and had not been frozen in place. It probably was a bit of risk for the drive belt.

 

[looney2ns]

Will leaving a camera plugged in cause damage? Or do these cameras have an auto turn off that stops the attempt to use the motor so it doesnt burn up?
I dont have touring turning on. Its the motion tracking which is trying to move the camera.

No
Read my post above again.

 

[DsineR]

Check a couple Dahua PTZ specs SD49425XB-HNR and SD4A425DB-HNY , both have the same Environment rating:

Environment
Operating Temperature	-40°C to +70°C (-40°F to +158°F)
Operating Humidity	≤95%
Protection	IP66; TVS 6000V lightning proof; Surge protection

 

[Michael James]

Everything came back ok with a little sun. thx all