IOptron AccuAligning User manual

iOptron Corporation, 6E Gill Street, Woburn, MA 01801

www.iOptron.com

AccuAligningTM Polar Scope for

SmartEQTM Portable German Equatorial

GOTO Mount

Installation and User Manual

Product #3130

iOptron’s AccuAligningTM polar scope #3130 is an accessory for SmartEQ portable German

equatorial mount. It provides a fast and accurate polar axis alignment with Quick Polar Alignment

procedure.

Included in Package:

1X Polar scope #3130

1X Polar scope set screw

1X Polar scope illumination LED

2X M3 screw and nut

Figure 1. Parts list

Installation:

Install polar scope

1. Unscrew polar scope cover from the mount;

2. Insert included M4 set screw into the treaded hole on the polar scope housing, as show in

Figure 2. Use a hex key wrench to turn the screw few turns. Make sure the tip of the screw

does not penetrate into the hole, which will block the polar scope insertion.

Figure 2. Insert M4 set screw

eyepiece

Polar Scope

LED

3. Insert polar scope all the way into the scope housing, as shown in Figure 3. The polar scope

will be tight fitted into the scope house. Secure the scope by lightly tightening the set screw.

DO NOT over tighten the locking screw. It may damage the polar scope body and lens.

Figure 3. Install polar scope

Install polar scope illumination LED

1. If there is a bar in the middle of the polar alignment opening as shown in the Figure 4, the

SmartEQ mount already has an illumination LED as part of the main control board. If you can’t

see through the polar alignment opening, it is blocked by the DEC axle. Please turn the mount

on and use the UP or DOWN arrow key on the hand controller to rotate the DEC axle until you

can see through the opening.

Figure 4. SmartEQTM with integrated polar scope illumination LED

Please go to the Operation part for polar alignment.

2. If there is no illumination LED installed, please follow the procedures bellow to install it.

Release four (4) screws from the SmartEQ face plate, as shown in Figure 5.

Figure 5. Remove face plate screws

Figure 6. Disconnect cables

3. Carefully pull the face plate open. Disconnect the RA and DEC motor drive cables first. Then

disconnect two battery holders from the main board.

4. Remove the main control board from the face plate. Align the illumination LED to the top edge

of the board, make sure plus (+) and minus (-) electrodes of the LED are aligned to the + and –

signs on the board, as shown in Figure 7.

Figure 7. Align LED to the main board

Motor cables

Battery cables

5. Secure the LED onto the control board using supplied screw and nut sets.

Figure 8. Secure the LED using screws and nuts

6. If you have an AC/DC power supply, you may connect the power supply and Go2Nova 8408

hand controller to the control board. Turn the power switch on and use hand controller Set

Polar Light command under Set Up Controller menu to adjust the LED brightness. Otherwise,

you may test it after install the face plate back to mount.

Figure 9. Adjust the LED brightness by a hand controller

7. Secure the board onto the face plate. Reconnect the battery plugs and R.A. and DEC motor

controller cables. Place the face plate back to the mount and screw it onto the mount.

Quick Polar Alignment:

1. Insert 8 AA batteries into the battery packs or connect the mount with an AC/DC power adapter.

Plug the Go2Nova hand controller into the mount HBX port. Turn the power switch on.

2. Make sure that the DEC axle is not blocking the polar scope view by turn the DEC axle using

UP or DOWN button. Press the Number key to change the speed.

3. Use hand controller Set Polar Light command under Set Up Controller menu to adjust the

LED brightness to a comfort level.

4. Adjust polar scope eyepiece shown in Figure 1 to bring the Polar Scope Dial in focus.

As indicated in Figure 10, the Polar Scope Dial has been divided into 12 hours along the

angular direction with half-hour tics. There are 2 groups, 6 concentric circles marked from 36’ to

44’ and 60’ to 70’, respectively. The 36’ to 44’ concentric circles are used for polar alignment in

northern hemisphere using Polaris. While the 60’ to 70’ circles are used for polar alignment in

southern hemisphere using Sigma Octantis.

Figure 10. Polar Scope Dial

Figure 11. Zero position mark

5. Release R.A. Clutch Screw. Press the LFTT or RIGHT button on the hand controller to rotate

the polar scope to align the 12 o’clock position of the dial on the top, as shown in Figure 10. (Or

align to the zero position mark on the R.A. unit as shown in Figure 11). You may press number

9 button to change the rotation speed to MAX.

6. Make sure that the time and site information of the hand controller is correct. Press the MENU

button, then select “Align” and “Pole Star Position”to display the current Polaris position. For

example, on May 30, 2010, 20:00:00 in Boston, United States (Lat N42º30’32” and Long

W71º08’50”, 300 min behind UT, DST set to Y), the Polaris Position is 1hr 26.8m and r = 41.5m,

as shown in Figure 12 (a).

7. Adjust the mount in altitude (latitude) and azimuth (heading) direction to place Polaris in the

same position on the Polar Scope Dial as indicated on the HC LCD. In this case, the Polaris will

be located at a radius of 41.5’ and an angle of 1 hour 26.8 minute, as shown in Figure 12 (b).

(a) (b)

Figure 12. Place the Polaris at the position as shown on hand controller

You need to loose Azimuth Lock a little and use Azimuth Adjustment Knobs to adjust the mount

in azimuth (heading) direction (Figure 13). Unlock Latitude Clutch, and turn Latitude Adjustment

Screw or push the mount down to adjust the altitude (latitude), as shown in Figure 14. Secure

all the locks after the polar alignment is done.

Now the mount is polar aligned.

Figure 13. Azimuth adjustment

Figure 14. Latitude Adjustment

Adjust Polar Scope Focuser

If the polar scope does not focus on the distant object, take the polar scope out of the mount

housing. Point the polar scope to a far distant object. Adjust the Objective Lens by turning the tube

to get a clear image. Tune the lock ring to secure it.

Replace the Polar Scope back to the mount and tighten it. DO NOT over tighten the locking

screw. Adjust the Eyepiece to get a clear picture of the reticle.

Polar Scope Alignment:

If you are suspecting that the polar scope may be misaligned to the mount R.A. axis, you may

check it by putting a star in the center of the polar scope reticle cross hairs and rotating mount’s

R.A. axis. If the star stays in the center of cross hairs, the polar scope is aligned to the mount’s R.A.

axis.

In the event the polar scope optical axis needs to be adjusted, you can do this procedure at night

while pointing at Polaris. However, it is probably easier to do it during the daytime using a distant

point, such as a flag pole or top of a building a couple of hundreds away, as your target. Please

remove the telescope, the counterweights and counterweight shaft from the mount. Aim the mount

to the object. Use the Latitude Adjustment Screw and Azimuth Adjustment Knob to center the

object.

Latitude

Adj. Screw

Azi. adj. knob (X2)

Azimuth lock

Latitude

clutch

Latitude dial

Eyepiece

Reticle Adj.

Screws

Locking Ring

Objective Lens

1. Release RA Clutch Screws. Rotate the

mount along the RA axis to the

balance position, dovetail saddle on

the right side. Lock the RA clutch

screws.

2. Loose latitude Locking Screws and

Azimuth Locking Screws a little.

Centering the object one the cross

hairs by adjust Latitude Adjust. screw

and Azi. Adjust. Knob.

3. Release the RA clutch again. Rotate

the mount 180º to bring the dovetail to

the left side. Retighten the RA clutch

screw. Bring the object half the

distance to the center by adjusting the

reticle adjustment set screws using a

hex key. Keep in mind that the image

in the finder is inverted.

Loose one screw first. Then tighten the other screw(s). DO NOT over tighten the

setting screws to force the reticle to move. You may break the GLASS reticle or

PLASTIC holder.

Only loose/tighten one screw at a time and a few turns each time to avoid the reticle totally

lost its position. It may take a few minutes to familiarize yourself with the screws that move

the polar scope in the appropriate direction.

4. Release the RA clutch and rotate the mount 180º to bring the dovetail back to the right side.

If you are lucky enough, the object will stay in center of the polar scope. Otherwise, repeat

Steps 2 and 3 to further move the object to the center.

5. After few times, the object will stay in center when the mount is flipped from right to left.

Rotate

Center the object

Bring the object

half the distance

to the center

Rotate

Center the object

Bring the object

half the distance

to the center

Rev. May 31 2014, V1.1

iOptron reserves the rights to revise this instruction without notice. Actual color/contents/design may differ from those described in

this instruction.

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