Features
■ Compact, requires only 22.7 mm
diameter panel space
■ No backlash
■ For use with precision potentiometers or
other rotating devices up to 15 turns
■ Designed for use with plastic shafts
H-506 Turns-Counting Dial
Mechanical and Physical Characteristics
Number of Turns ..................................................................................................................................................................................0 to 15
Dial Divisions .................................................................................................................................................................................50 per turn
Readability - Over 10 Turns.....................................................................................................................................................2 parts in 1000
Torque With Brake Engaged ...........................................................................................................................5.0 N-cm (7.0 oz-in.) minimum
Markings .............................................................................................................................................................White on black background
Locking Brake............................................................................................................................................................................................Yes
Weight...................................................................................................................................................................................7 grams (2.5 oz.)
Set Screws ..............................................................................................................................ISO M3x 0.35, 2 screws included, 120º apart
Set Screw Tightening Torque ...................................................................................................................16.94 N-cm (1.5 lbs.-in.) minimum
Hex Key Size .........................................................................................................................................................Single slotted screwdriver
Shaft and Bushing Requirements
Shaft Diameter Requirements ........................................................................................................................................Refer to chart below
Shaft Extension Beyond Panel.......................................................................................................................17.5 mm (0.6890 in.) minimum
22.5 mm (0.8858 in.) maximum
Bushing Extension Beyond Panel ....................................................................................................................10 mm (0.3937 in.) maximum
H-506 MOUNTING INSTRUCTIONS
1. Drill 2.0 mm (.0787 in.) diameter anti-rotation pin hole on
MOUNTING WASHER AND NUT
POTENTIOMETER
MOUNTING HOLE
vertic centerline, 9.5mm (.375 in.) below center of
potentiometer mounting hole.
2. Mount potentiometer in panel with nut and lockwasher
supplied with the potentiometer.
SUPPLIED WITH POTENTIOMETER
POTENTIOMETER
10.3
(.405)
TYP.
9.5
2 SET SCREWS
(.370)
3. Turn potentiometer shaft counterclockwise to obtain
minimum resistance or voltage ratio. This is not necessarily
identical with mechanical stop.
4. Loosen set screws in knob of dial. Set dial to “0.0” reading.
5. While holding outer ring of dial, position unit lightly against
panel. Tighten knob set screws to potentiometer shaft.
2.0
(.078)
Dimensional Drawings
14.8
(.582)
0
MM
(IN.)
DIMENSIONS:
9.5
(.374)
5 0
1.5
2.0
(.059)
17.0
MAX.
(.669)
(.078)
22.7
(.893)
25.0
(.984)
How to Order
Part Number
Accepts Shaft
Finish
Diameter
6.35 mm (.250)
6 mm (.236)
H-506-1/4
H-506-6M
Satin Chrome
Satin Chrome
REV. 04/03
Specifications are subject to change without notice.
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