Quote:
Originally Posted by Paramount
Hi Steve
I used to use a Premier controller but had continual problems with it cutting out whenever there was a slight variation in voltage and I also found it over complicated and the menu system a nightmare to use, since changing to the digifire 7 I have not had any problems at all, I use it with an AWR 240v AC to 12v DC transformer and it works fine.
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Hi Gordon,
I also have a Kendrick Digifire 7 fitted to my 18" Obsession. I am sure it is an excellent controller when fed through through a mains supply transformer. Using battery power it certainly has low voltage issues. The low voltage warning light comes on every time the servocat drives are engaged with a fast goto slew and when battery power has dropped a bit, using the servocat drives causes it to cut out completely.
For this very reason Peter Read at SDM Telescopes switched from the Kendrick Digifire systems (7 and 10) to the Thousand Oaks system. The big advantage of the Thousand Oaks controller is that you can disable the low voltage warning light and cutout. The dew heater straps work perfectly when fed a voltage slightly less than 11.8V, which is where the Digifire cutout engages.
I am about to purchase a Thousand Oaks controller to avoid the low voltage issues of the Digifire 7.
Cheers,
John B