Celestron 94050 Руководство по настройке

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Celestron 94050 Руководство по настройке

DEW HEATER RING

SETUP GUIDE

Models # 94050, 94051, 94052, 94053, 94054, 94055

ENGLISH

The Celestron Dew Heater Ring provides the best dew prevention

solution for your Celestron Schmidt-Cassegrain (SCT), EdgeHD,

or RASA telescope. It integrates directly into the optical tube

assembly, and "lives" with the telescope so you'll never forget it

or need to uninstall and reinstall it. Additionally, since the heating

element is in direct contact with the Schmidt corrector lens, it

provides more efﬁ cient power usage than heating strips that wrap

around the exterior of the telescope tube. For best power efﬁ ciency

during use, there is also an integrated thermistor in the ring.

When used with one of the optional Celestron Smart DewHeater

Controllers, the thermistor provides data to the controllers to

apply just the right amount of power to keep the corrector free

from dew all night while minimizing power usage.

Please read through this entire manual before attempting to install

or use the dew heater rings.

DEW HEATER RING COMPATIBILITY

Celestron

Description

Part#

94055

Dew Heater Ring, 5"

94050

Dew Heater Ring, 6"

94051

Dew Heater Ring, 8"

94052

Dew Heater Ring, 9.25"

94053

Dew Heater Ring, 11"

94054

Dew Heater Ring, 14""

For 8", 11", and 14", if you are unsure when your Schmidt-

Cassegrain telescope was produced, refer to the FAQ on the

Dew Heater Ring product webpages at celestron.com.

Compatibility

All 5" Schmidt-Cassegrain

All 6" Schmidt-Cassegrain

8" Schmidt-Cassegrain produced

after 2006, all 8" EdgeHD, all

RASA 8

All 9.25" Schmidt-Cassegrain, all

9.25" EdgeHD

11" Schmidt-Cassegrain produced

after 2006, all 11" EdgeHD, all

RASA 11

14" Schmidt-Cassegrain produced

after 2006, all 14" EdgeHD, all

RASA 36cm

PARTS LIST

Fig 1

Dew heater ring

Paper installation shield

INSTALLATION

WARNING: The dew heater ring comes in direct contact with the telescope's Schmidt corrector lens and

provides mechanical support for this optical element. When installing the dew heater ring, it

will be important not to change the position or orientation of the Schmidt corrector, or optical

performance may be affected. There are 4x set screws that support the edge of the corrector.

Do not attempt to make adjustments to these screws or optical performance may be affected.

Additionally, be very careful not to damage the Schmidt corrector itself when installing the dew

heater ring; make sure you are in a well-lit room and are focused on the task at hand before

you attempt to install the ring.

1. Orient your optical tube assembly (OTA) vertically, so that the front

of the telescope is pointing straight upward. We recommend using

your telescope mount to achieve this orientation. This may require

shortening the tripod legs for a workable height (for German EQ

mounts, see Figure 2) or removing the entire mount and OTA from

the tripod (for fork-mounted telescopes, see Figure 3). It is very

important that the OTA is pointing vertically during installation. This

will help ensure the optics do not shift or move during installation.

Fig 2

Cable management clip

Extension cable for power jack (only needed

for use with optional dew heater controllers)

Fig 3

ENGLISH |