Powering The Controller - Celestron 94035 Manual De Instrucciones

Fig 7
The enclosure's bridge was designed to facilitate cable management.
bridge to keep them captive and organized (Figure 7). Simply insert
the cable end underneath the bridge and pull it through until there is
enough slack to connect the cable's plug to the corresponding port
on the controller.

4. Powering the Controller

You will need a suitable 12V DC power supply for the Smart
DewHeater Controller 2x. The appropriate 12V DC power supply will
depend on the equipment you have plugged into the controller. The
maximum power the controller can handle is 120W (10A max current
@ 12V DC), but many use cases require less power. When choosing
a power supply, it is crucial to determine the approximate amount of
power needed for your setup and how much battery capacity you'll
need for your observing session.
Helpful formulas:
- Voltage (in Volts) x Current (in Amps) = Power (in Watts)
- Current (in Amps) x Time (in hours) = Battery current capacity (in
Amp-hours) required
- Power (in Watts) x Time (in hours) = Battery power capacity (in
Watt-hours) required
The maximum input voltage for the power input jack is 13.8V DC.
Make sure your power supply's output voltage does not exceed this.
If over 13.8V DC is supplied, all output ports will automatically shut
off to protect the circuitry, and the "Over Voltage" status LED on the
enclosure's bridge will blink.
You will need to choose from the following powering options:
- For portable setups, you'll need a 12V DC battery. Both the
Celestron PowerTank Lithium Pro and Celestron PowerTank 17AH
will work. Use the included power cable and connect the cigarette-
lighter plug to the battery and the threaded barrel connector to the
controller (Figure 8).
NOTE: If you are using two dew heaters in heavy dew conditions
and also powering a 12V DC device, the controller may be operating
near its 120W power (10A current) limit. In this case, the PowerTank
Lithium Pro and PowerTank 17Ah may not have enough capacity to
run your setup all night. You'll need a larger capacity battery.
4 | ENGLISH
PowerTank Lithium Pro
Threaded Barrel Connector
Power Cable
Fig 8
You can use the included power cable to connect a battery to the controller. Use the
threaded barrel connector for the most secure connection.
Threaded barrel connector
Fig 9
If you need 5A (60W) of power or less for your setup, and you have access to an AC power
outlet, you can use the Celestron AC Adapter-5A to power the controller. Use the threaded
barrel connector for the most secure connection.
- If you can connect to an AC power outlet, you can use an AC-to-
12V DC adapter. If your setup requires 60W power or less (5A
current or less), you can use Celestron's AC Adapter-5A. For the
most secure connection, connect the adapter's output cable to the
controller's power input jack, thread the connector on the end of
the cable to the exterior of the jack, and then plug the adapter into
an AC power outlet (Figure 9).
WARNING: THE MAXIMUM POWER THE INPUT JACK CAN
ACCEPT IS 120W (10A MAX CURRENT @ 12V). If you connect
a power source capable of delivering more than 120W to the power
input jack, you could damage the controller's power cable and the
controller itself. If you require more than 120W, we recommend
purchasing the Celestron Smart DewHeater and Power Controller
4x, which can handle up to 240W (20A max current).
NOTE: If operating near 10A max current, there will be a voltage
drop of approximately 1V from the power source to the controller
due to the power cable. In this case, we recommend using a power
source that supplies slightly more than 12V (but less than 13.8V).
Refer to Appendix A for example power supply setups for reference.
Once you have chosen your power supply, you will need to set the
maximum current draw for your power supply using the Celestron hand
control or CPWI (discussed later in this manual). Then, if the controller
AC Adapter-5A