Power Control - Celestron 94036 Manual De Instrucciones

DEW HEATER CONTROL
The Smart DewHeater and Power Controller 4x provides automatic
"smart" control for up to four dew heater rings or dew heater bands/
strips.
If you are using the controller with a Celestron Dew Heater Ring,
connect the ring's power input jack to one of the controller's dew
heater output ports using the extension cable that comes with the ring.
Next, plug the included thermistor cable into the ring's thermistor jack
and the corresponding thermistor port on the controller. (Figure 3)
The thermistor indicates the Schmidt corrector lens' temperature. The
controller uses this data along with information from the controller's
integrated environment sensor (i.e., ambient temperature and humidity)
to provide just the right amount of power to the ring to prevent dew. If you
are using battery power, this system greatly increases battery life under
most conditions. Once you connect the ring to one of the controller's
dew heater ports, it will begin to heat up (unless the port has been
manually disabled, which will be discussed later in this manual).
Fig 3
Connect a Celestron Dew Heater Ring to the controller using the extension cable that comes
with the ring and the thermistor cable that comes with the controller.
You will need an additional thermistor cable if you wish to use automatic
smart control for more than one Celestron Dew Heater Ring. The
thermistor cable is a standard 2.5mm audio cable, which you can find
at most electronics retailers. Be sure to get one that is long enough to
accommodate your setup.
The controller's environmental sensor resides in the "bridge" on the
controller's enclosure (Figure 2). This location protects the sensor from
any heat radiating from the enclosure while still providing good airflow.
An integrated environmental sensor gives you a simpler, cleaner setup
without dangling external sensors to get in your way.
Occasionally, you should recalibrate the environmental sensor.
Recalibrating heats the sensor so that any accumulated moisture
evaporates, ensuring the most accurate temperature and humidity data
and the most efficient power use. We recommend recalibrating before
initial use and after long periods of storage in humid conditions. The
process is easy; we'll explain it later in this manual.
NOTE: If you do not wish to use automatic smart control, you can
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manually set the power for each of the dew heater ports from 0% (off)
to 100% (full power). We'll discuss this option in more detail later in
the manual.
If you are using a non-Celestron heating band or strip, it will need an
RCA-type plug to connect to the controller's heater output ports. You
have two options for controlling third party bands/strips:
1. You can purchase the optional Thermistor for Celestron Smart
DewHeater Controllers to provide automatic smart power control.
Connect the heating band to the telescope and connect its plug
to one of the dew heater ports. Then, place the tip of the probe
thermistor under the heating band so it is secure (you may want to
use tape). Connect the thermistor's plug to the corresponding jack
on the controller (Figure 4). The probe thermistor is not as accurate
as the Celestron Dew Heater Ring's built-in thermistor, which
contacts the corrector lens directly. Still, it allows for automatic
smart control of heating bands/strips.
Extension cable
Thermistor cable
Fig 4
If you are using a heating band or strip from another manufacturer, you will need the optional
Celestron Thermistor for Smart DewHeater Controllers.
2. As mentioned above, you can manually set the power output for
each dew heater port from 0% to 100%.
Each of the dew heater ports can deliver a maximum of 84W power
(7A max current), which should be more than enough for most dew
heaters. If a connected dew heater draws more than 84W, the port will
automatically shut off to protect the circuitry. After reducing the load, you
can re-enable the port, a process that we'll discuss later in this manual.

POWER CONTROL

The Smart DewHeater and Power Controller 4x can provide 12V DC
power to up to four external devices. This will allow you to power
your mount, camera, focus motor, and other 12V DC accessories with
only one power source, which greatly simplifies the required cable
connections.
To power a 12V DC device, simply connect the device's power input
to one of the controller's 12V DC power output ports. The ports
require a 12V DC 5.5mm/2.1mm tip positive barrel connector. Power
will flow through the port as soon as you connect the device; there is
no need to turn the port on (unless you disabled the port previously,
which we'll discuss later).
The power port can deliver a maximum of 84W power (7A max
current). If a connected device draws more than 84W, the port will
automatically shut off to protect the circuitry. After reducing the load,
you can re-enable the port, a process that we'll discuss later.
Celestron Thermistor