MODEL 2640 SERIES
7/8” Diameter
Analog
Turns Counting Dial
MODEL
2646
2647
2641
Counting Capacity, Maximum Turns
For Shaft Diameter
For Bushing Diameter
Depth: Maximum, From Face of Panel
Shaft Extension:
Maximum, From Face of Panel
Minimum, From Face of Panel
Bushing Extension:
Maximum, From Face of Panel
Locking Mechanism
Weight, Nominal
Number of Set Screws
Numeral Height
Knob Material
Dial Finish
Housing Finish
Operating Temperature Range
20
15
1/4”
1/8”
3/8”
1/4”
0.900”
0.82”
0.781”
0.672”
0.628”
0.469”
0.300”
0.270”
Positive Action with Detent
Positive Action
0.60 oz.
1
2
1
0.050”
Black Plastic
White Numerals on Black Matte
Satin Chrome
–55°C to +71°C
2646S
2647S
Counting Capacity, Maximum Turns
For Shaft Diameter
For Bushing Diameter
Depth: Maximum, From Face of Panel
Shaft Extension:
Maximum, From Face of Panel
Minimum, From Face of Panel
Bushing Extension:
Maximum, From Face of Panel
Locking Mechanism
Weight, Nominal
Number of Set Screws
Numeral Height
Knob Material
Dial Finish
Housing Finish
Operating Temperature Range
15
1/4”
3/8”
0.94”
0.781”
0.578”
0.300”
Positive Action
0.60 oz.
1
0.050”
Black Plastic
White Numerals on Black Matte
Satin Chrome
–55°C to +71°C
2
3-10
Model 2640 Series
OUTLINE DIMENSIONS (Inch/mm)
Nominal
Panel Hole Dimensions
Model
2601
2606,2607,
2606S&2607S
Dim.A Dim.B
.281
7.14
.406
10.3
.281
7.14
.375
9.53
Mounting Surface
.90±.02
22.9±0.5
40
2646
2647
Adaptor
Plate
(if needed)
.496±.010
Dia.
12.6±0.25
.58
Max.
14.7
0
0
.138
3.51
60°±5°
20
1
A Dia.
40
60
5 0
30
Mounting Surface
B
+.0005
-.0000
Dia.
+0.127
9.525
-0.000
.375
.078
Dia .
1.98
40
.53±.02
13.46±0.51
Dia.
.875±.016
22.22±0.406
Locating*
Plate
*Model 2641 supplied with locating washer
instead of locating plate.
INCH
mm
Specifications subject to change without notice.
60
5 0
3-11
Model 2640 Series
80
70
.94
Max.
23.88
.82
Max.
20.8
on 2601
2641
2646S
2647S
50
9° Min.
3
0
0
90
60
Max. Brake
Lever Travel
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