H-46 Turns-Counting Dial

Mechanical and Physical Characteristics

Number of Turns ..................................................................................................................................................................................0 to 20

Dial Divisions ...............................................................................................................................................................................100 per turn

Readability – Over 10 Turns .........................................................................................................................................Within 1/100 of a turn

Torque With Brake Engaged...................................................................................................................21.18 N-cm (30.0 oz.-in.) maximum

Markings ..........................................................................................................................................................Black on chrome background

Locking Brake............................................................................................................................................................................................Yes

Weight.................................................................................................................................................................................73 grams (2.5 oz.)

Set Screw ..............................................................................................................................................................UNC N4-44, one included

Set Screw Tightening Torque ...................................................................................................................16.94 N-cm (1.5 lbs.-in.) minimum

Hex Key Size ................................................................................................................................................................................0.05 in. hex

Shaft and Bushing Requirements

Shaft Diameter Requirements ........................................................................................................................................Refer to chart below

Shaft Extension Beyond Panel .........................................................................................................................17.5 mm (0.689 in.) minimum

23.5 mm (0.925 in.) maximum

Bushing Extension Beyond Panel .....................................................................................................................4.5 mm (0.177 in.) maximum

24.0

(.944)

12.50

(.492)

14.30

(.562)

46.0

(1.811)

10.31

(.405)

14.30

(.562)

3.17

(.124)

PANEL LAYOUT

DIA.

DIA.

Part

Accepts Shaft

Number

Diameter

Finish

H-46-6A

6.35 mm (.250)

Satin Chrome

H-46-6M

6 mm (.236)

Satin Chrome

How to Order

Dimensional Drawing

H-46 MOUNTING INSTRUCTIONS

Using the existing Antirotation Lug

1. Drill 3.2 mm (0.125) diameter antirotation pin hole on vertical

centerline 14.3 mm (0.562) below center of potentiometer

mounting hole.

2. Mount potentiometer shaft counterclockwise to obtain minimum

resistance or voltage ratio. This is not necessarily identical with the

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.

Using the Antirotation Device

1. Remove antirotation lug from dial by using pliers.

2. Mount potentiometer in panel with antirotation device nut

(supplied with dial) and lockwasher (supplied with potentiometer).

3. Turn potentiometer shaft counterclockwise to obtain minimum

resistance or voltage ratio. This is not necessarily identical with

the 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.

Features

■

Large package size

■

For use with precision potentiometers up

to 20 turns

■

Excellent readability

■

Precision feel - no backlash

■

Cast housing

Applications

■

Power supplies

■

Sensors

■

Medical

■

Automation

■

Test equipment

MM

DIMENSIONS:

(IN.)

REV. 04/03

Specifications are subject to change without notice.