MODEL 2640 SERIES 7/8” Diameter Analog Turns Counting Dial MODEL 2646 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 2647 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 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 3-10 2641 2647S 15 1/4” 3/8” 0.94” 0.781” 0.578” 0.300” Positive Action 0.60 oz. 1 2 0.050” Black Plastic White Numerals on Black Matte Satin Chrome –55°C to +71°C Model 2640 Series OUTLINE DIMENSIONS (Inch/mm) Nominal Panel Hole Dimensions 2646 2647 Mounting Surface Dim.A Dim.B 2601 .281 7.14 .281 7.14 2606,2607, 2606S&2607S .406 10.3 .375 9.53 .90±.02 22.9±0.5 40 Model 5 0 .496±.010 Dia. 12.6±0.25 .138 3.51 .58 Max. 14.7 60 Adaptor Plate (if needed) 00 A Dia. 30 60°±5° 20 Max. Brake Lever Travel 50 60 70 40 80 .53±.02 13.46±0.51 Dia. .875±.016 22.22±0.406 60 5 0 .375 .078 Dia. 1.98 9° Min. 90 +.0005 -.0000 Di a. +0.127 9.525 -0.000 2641 2646S 2647S 0 B .94 Max. 23.88 .82 Max. 20.8 on 2601 0 40 1 Mounting Surface Locating* Plate *Model 2641 supplied with locating washer instead of locating plate. INCH mm Specifications subject to change without notice. 3-11 Model 2640 Series 3