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H-516 Datasheet(PDF) 1 Page - Bourns Electronic Solutions

Part No. H-516
Description  Turns-Counting Dial
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Maker  BOURNS [Bourns Electronic Solutions]
Homepage  http://www.bourns.com
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Features
Compact, requires only 22.8 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
RoHS compliant*
H-516 Turns-Counting Dial
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
REV. 11/12
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 (0.25 oz.)
Screws ............................................................................................................................ Slotted 4-40UN, 2 screws included, 120 º apart
Screw Tightening Torque...................................................................................................................... 16.94 N-cm (1.5 lbs.-in.) minimum
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
How To Order
Accepts Shaft
Part Number
Diameter
Finish
H-516-3A
3.17 mm (.125)
Satin Chrome
H-516-6A
6.35 mm (.250)
Satin Chrome
H-516-6M
6 mm (.236)
Satin Chrome
H-516 MOUNTING INSTRUCTIONS
1.
Drill 2.0 mm (.0787 in.) diameter anti-rotation pin hole on vertical
centerline, 9.5 mm (.375 in.) below center of potentiometer
mounting hole.
2.
Mount potentiometer in panel with nut and lockwasher supplied
with the potentiometer.
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.
Dimensional Drawings
POTENTIOMETER
MOUNTING WASHER AND NUT
SUPPLIED WITH POTENTIOMETER
9.5
(.374)
2 SET SCREWS
10.3
(.406)
2.0
(.079)
POTENTIOMETER
MOUNTING HOLE
TYP.
24.8
(.976)
1.4
(.055)
9.5
(.374)
14.8
(.583)
1.1
(.043)
0
10
22.8
(.898)
17.0
(.669)
MAX.
TOLERANCES: EXCEPT WHERE NOTED
.51
.13
DECIMALS: .XX
±
(.020)
.XXX
±
(.005)
FRACTIONS:
±1/64
MM
DIMENSIONS:
(IN.)
Asia-Pacific:
Tel: +886-2 2562-4117
Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555
Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500
Fax: +1-951 781-5700
www.bourns.com




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