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
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
H-516 MOUNTING INSTRUCTIONS
1. Drill 2.0 mm (.0787 in.) diameter anti-rotation pin hole on vertical
MOUNTING WASHER AND NUT
POTENTIOMETER
MOUNTING HOLE
SUPPLIED WITH POTENTIOMETER
POTENTIOMETER
centerline, 9.5 mm (.375 in.) below center of potentiometer
mounting hole.
10.3
(.406)
TYP.
9.5
(.374)
2. Mount potentiometer in panel with nut and lockwasher supplied
with the potentiometer.
2 SET SCREWS
3. Turn potentiometer shaft counterclockwise to obtain minimum
resistance or voltage ratio. This is not necessarily identical with
mechanical stop.
2.0
(.079)
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
14.8
(.583)
0
TOLERANCES: EXCEPT WHERE NOTED
.51
(.020)
.13
(.005)
DECIMALS: .XX
.XXX
9.5
(.374)
FRACTIONS: 1/64
MM
DIMENSIONS:
(IN.)
5 0
1.1
1.4
(.043)
(.055)
22.8
(.898)
17.0
(.669)
MAX.
Asia-Pacific:
24.8
(.976)
Tel: +886-2 2562-4117
Fax: +886-2 2562-4116
How To Order
Europe:
Tel: +41-41 768 5555
Fax: +41-41 768 5510
Accepts Shaft
Diameter
3.17 mm (.125)
6.35 mm (.250)
6 mm (.236)
Part Number
H-516-3A
H-516-6A
H-516-6M
Finish
The Americas:
Satin Chrome
Satin Chrome
Satin Chrome
Tel: +1-951 781-5500
Fax: +1-951 781-5700
www.bourns.com
REV. 11/12
*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.
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