i-2164 Bol 2K SD * * By a dehy wh > ee Se Oa FUR ee SR me eon OR RE we .aS ixe 4x The ABW1 Series of Potentiometers have for many years. been. tne. Industry standard for professional and industrial applications. The design ensures a very high degree of linearity, and concentricity t between the wiper and the element. The Electrical specification Effective Rotation 265 + 5 Resistance Range 12 to 50KQ linear 202 to 10KQ2 log Resistance Tolerance Standard: + 10% Special: + 5%, +2%, + 1% (Values >472) Laws Linear, Non-linear Non-linear functions are achieved by former profiling or by using up to three linear sections of varying resistance gradients. Special non-inductive types available. Linearity Standard: Independent 2% Special: 1% Voltage Rating 300V d.c. Resolution Can be determined from Resolution v Resistance graph. If degree of resolution is a particular requirement customer should state this in specificatian. Mechanical specification Mechanical Rotation 285 + 5 Operating Torque 0,7 3,6 Nem. Mounting Details Standard Bush: Bush 9,5mm diameter, 32 TP! Whitworth form 10mm long, or metric M10 x 0,75/10mm long. Annular ring designed to fit over the bush can be supplied to provide a locating key position 9,5mm left of centre (terminals down, viewed from spindle end) or a locating key to DIN requirements. Pane! and spindle sealing available to R.C.L.224. Printed Circuit: The flat edge and stand offs of the moulded body are designed to facilitate such mounting. Power Rating at 40C Ambient Temperature Linear: 1 Watt Non-linear: | Dependent on exponent of the law. E.N.R. Not greater than 1002. Voltage Proof 1 kV r.m.s. Insulation Resistance Not less than 1000MQ at 500V d.c. Terminal Resistance Not greater than 0.01% of nominal resistance or 0.20 whichever is the greater. End Stop Torque 113 Nem minimum Spindles Diameter: 6,3mm or 6mm Standard lengths: 12,7mm, 15,9mm, 19mm, 25,4mm Round with screwdriver slot. Other lengths and end configuration to customers requirements. With a locating key ring the mounting face is brought forward by 0,81mm. Terminals Standard: Solder lug or printed circuit (silver plated) Special: Gold washed or gold plated terminals can be provided.esolution and Temperature DERATING CURVE oefficient v Resistance (Typical) cr I 7 OF SE Ee lg 100 | - | pod - To 81% 2 | | L | Hl : & ! : i ' i W 3 sot , 1 ! Il 5 i oS! ( >. 3 * | | XN g a 1 | | { | l | | L | | "o305 1 5 10 50 100 500 1K 5K 10K 50K 0 10 620C:tst(<i so. 66070 go 6900100110 120~S*130 Resistance (ohms) Ambient Temperature (C) Type ABW1 Solder lug terminals and standard locating key. 17,45 A , 23 Dia Annular 4 roove ~ <4 p2,46 | re" - / | 0,81 = / / -B f by ! 4 ___+4 = T | 5 ++ Mounting face 0,64 7 ~ 0,81 3,18 wide x > 0,35 thick terminals |__ Mounting face without Ne go * rfocating key ring Printed circuit terminals and DIN locating. Mounting face + 0,79 0,35 thick terminals AE ; ~1,78 dia holes Mounting face without locating key ring 10 a panel piercing details Type ABW1 Pp Printed circuit terminals, preset, no bush. 23,0 dia - Screwdriver slot 12 wide x 1,2 deep shown in mid rotation position | 6,32/6,31 dia 12.04 7 | las ous a | r- | Las Lee 3 Holes 1,78 dia be 17,45 > pe 4 = | =, } Panel Prercing DetailsThe proven ABW2 Series of Potentiometers are of rugged construction and suitable for use in professional and industrial electronic equipment. The method of manufacture ensures good element linearity and the ability to achieve close resistance tolerance. The range contains a very wide variety of features, the more commonly specified are detailed in table 1. Electrical specification Effective Rotation 270 + 5 without switch 240 + 5 with switch Resistance Range 12 50k2 Resistance Tolerance Standard + 10% Special: + 5%, + 2%, + 1% (Values >472) Laws Linear, Non-linear Non-linear functions are achieved by former profiling or by using up to three linear sections of varying resistance gradients Linearity Standard: Independent 2% Special: 1% Voltage Rating 300V a.c./d.c. maximum Resolution Can be determined from Resolution v Resistance graph if degree of resolution is a particular requirement customer should state this in specification Mechanical specification Mechanical Rotation 300 + 5 Operating Torque Standard: 0,7 - 3,6 Ncm Mounting Details Standard Bush Bush 9,5mm diameter, 32 TPI Whitworth form (BS 84) medium fit, 6.3mm or 9,5mm long Standard locatine key left of centre (terminals down viewed from spindle end) fits into 3,2mm hole on 13,5mm radius Each control is supplied with a fixing nut and internal toothed lockwasher Metric Bush: M1@ x 0,75mm dia 8mm long. Panel and spindle sealing available to R C.L 224. Split bush and jam nut construction can be supplied to provide spindle locking facilities. (Imperial standard only) Power Rating at 40C Ambient Temperature Linear 2 Watts Non-linear: Dependent on exponent of the law E.N.R. Not greater than 1000 Voltage Proof 1 kV ac minmum Insulation Resistance >1000MQ at 500V dc. Terminal Resistance Not greater than 0 01% of nominal resistance or 0.20 whichever is the greater Hop On Resistance Not greater than 3% of total nominal resistance. Taps Single tap available at 50% effective rotation. Mains Switch Each control is fitted with a double pole, single throw mains switch or a single pole changeover switch, operating in 30 rotation of the control spindle. In the standard construction, the switch is OFF tn the fully anti-clockwise position of the spindle but other switch/positional arrangements can be provided The switch ts rated at 2 Amps/ 250V a.c with a surge rating of 64 Amp. Clearance and creepage distances conform to BS.415 Approvals to SEMKO, DEMKO, NEMKO, CSA End Stop Torque 113 Nem Spindles Diameter. 6,3mm Standard lengths: 12,7mm, 15,9mm, 19mm, 25,4mm Round with screwdriver slot. Other lengths and end configuration to customers requirements. Insulated spindles Controls can be supplied with operating ends of high grade insulating material Diameters suitable for continental mounting standards can be supplied. Terminals Standard Solder lug Special Gold washed centre terminalesolution and Temperature Coefficient v Resistance Value (Typical) 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0 1,1 1,2 030,5 1 5 10 50 100 500 1K 5K 10K 50K 100K Resistance (ohms) 100 No. of turns Resolution = ERATING CURVE 100 5 & B Q 50 oO = o a 0 10 =. 20 30 40 50 60 70 80 90 100 110 120 130 Ambient Temperature (C) able 1 Type Description ABW2 Basic Single Potentiometer. Solder terminals. AR-ABW2 Single Potentiometer with Mains Switch. Solder terminals. F-ABW2 Single Potentiometer with Forward Facing PC Mounting. ABW2-B Single Potentiometer with Dual Wiper, for use as Audio Fader. ABW2-V Single Potentiometer with spindle insulated for use up to 10kV. 2-ABW2 Double ganged Potentiometer. C2-ABW2 Dual Potentiometer independently operable through concentric spindles. AR-2-ABW2 Double ganged Potentiometer with Mains Switch. AR-C2-ABW2 Dual Potentiometer independently operable through concentric spindles with Mains Switch.Type ABW2 Single Potentiometer Ae 15.5 B Cc ( 610) | _ _ 5 On, Sie B on 7 K & owe eo - Sar o el x t wo g - - D Tyo 3S = f Di S 28 < orm E Ld eT Mtg Face 1,6 (062) Min Loc Key Type AR-ABW2 Single Potentiometer with Mains Switch 27,0 A ad (1 063) 5,0 LL 16,9 B Cc ( 197) | ( 665} | ac |_ | - 5 Glo & - F Tor | = a 1} & SoS 9 a aa o > 3 . c a Mtg Face 1,6 ( 062) Min 2 Loc Key <x y ~ ms Type F-ABW2 Single Potentiometer with Forward Facing PC terminals. i AL 4 ow ~~ 7m NO oa ~! r t. tL gt i ; a! ey Mtg_face Ls 6 ( 062) Min, ~ go | 308 Loc Key , Ay oe at _3 Holes 1,9 ( 075) ale 159 alo "= [ 625) = se Panel piercing details A $ 28,5 15,5 B Cc { 610) ~ c Ss 2 80 Sle f= 3 ola wis a ola ~ > ee OL 8 @ : ol ' x a g ~ ~ TA l -j S a " D c = 2 mls < O|N ~ Mtq F Wipers Positioned at 50% tg Face 1,6 ( 062) Min of Mechanical Rotation Loc KeyDual Ganged Potentiometer Type 2-ABW2 i + ns - 06 13.5 {1,2 min = S e | & eft S - s 3 3,1 oo | a | ! i = @ oo : la ToL z yo HA B! . 2 eS 9,5 or 6,4 29.8 Type AR-2-ABW2 bua Ganged Potentiometer with Mains Switch ; 48,0 A sot 30,8 1,2 5 85 - g +} -=1,2 min g Lc ; ry 3 + _ | : 34 ot | LT Lh 2 3 a a 3 28,5 26 on i__f + L a dia dia (0 an To tH {y- s = of s . | . 19,5 \ < H |p 2 2 9,5 or 6,4 soe 202 29 8 ~~ nr xo Type C2-ABW22 buat concentric Potentiometer : . Cc S 3 , a _> | 3 || 0 | z ot oO 28,5 5 P ) : ( = P <= 29.8 Type AR-C2-ABW22 buat concentric Potentiometer with Mains Switch 48,0 At . 30,6 _ 4 13,5. s I2 min 6,7 dia Eya 3 My a q f 3.1 47 dia |; i > | [ a | | 2 SS 1 : se Dia Dia tty] . 2 28,5 26 +} va y- SS fT 2 | 19,5 < pe IN Sy SS , 29,8 39ST BO <ey to Details: A. Shaft length to specification, B. Bush thread length Imperial 9,5 or 6,35mm, Metric 8mm, C. Flat length to specification, D. Angle DO naan nnaiian Af flat ath ehaftin filly ante atanbunoe naciian whar wowed fram knah end F Flat thickness to specification af Flat ta enan Cant anThe proven ABW3 Series of 3 Watt wirewound Potentiometers has a high reputation for reliability and long life. The high degree of concentricity between wiper and element and the consistency of winding confers a linearity better than 2%. The range includes a variety of T and L attenuators. Electrical specification Effective Rotation . 280 + 5 without switch, 250 + 5 with switch. Resistance Range Standard: 12 to 50KQ Special: Over 50KQ to 100K2 Resistance Tolerance Standard: + 10% Special + 5%, + 2%, + 1% (Values >47Q) Laws Linear, Non-linear Non-linear functions are achieved by former profiling or by using up to three linear sections of varying resistance gradients. Linearity ' Standard: Independent 2% Special: 1% Voltage Rating 300V a.c/dc maximum Resolution Can be determined from Resolution v Resistance graph. If degree of resolution is a particular requirement customer should state this in specification. Power Rating at 40C Ambient Temperature Linear: 3 Watts Non-linear: Dependent on exponent of the law. Mechanical specification Mechanical Rotation 300 + 5 Operating Torque Standard: 0,7 - 3,6 Ncm Mounting Details Standard Bush. Bush 9,5mm diameter, 32 TPI Whitworth form (BS 84) medium fit, 6.8mm or 9,5mm long. Flat metal locating key available at 12,7mm radius. Each control is supplied with a fixing nut and internal toothed lockwasher Panel and spindle sealing available to R C.L.224 Split bush and jam nut construction can be supplied to provide spindle locking facilities. (Imperial standard only) E.N.R. Not greater than 1002. Voltage Proof 1 kV a.c. minimum Insulation Resistance >1000M2 at 500V de. Terminal Resistance Not greater than 0 01% of nominal resistance or 0.22 whichever is the greater Hop On Resistance Not greater than 3% of total nominal resistance Mains Switch Double pole, single throw mains switch or single pole changeover switch, operating in 30 rotation of the control spindle. In the standard construction, the switch 1s OFF in the fully anti-clockwise position of the spindje but other switch positional arrangements can be provided. The switch is rated at 2 Amps/250V a.c. with a surge rating of 64 Amps. Clearance and creepage distances conform to BS 415. Approvals to SEMKO, DEMKO, NEMKO, CSA End Stop Torque 113 Nem Spindles Diameter 6,3mm Standard lengths: 12,7mm, 15,9mm, 19mm, 25,4mm Round with screwdriver slot Other lengths and end configuration to customers requirements Insulated spindles Controls can be supplied with operating ends of high grade insulating material. Terminals Standard: Solder lug Special. Gold washed centre terminalResolution and Temperature Coefficient v Resistance Value (Typical) 0 0,1 an 0,2 3 0,3 S| 5 0,4 $05 0,6 "97 c & 0,8 = o 09 wn 1,0 1,1 1,2 0.30,5 1 5 10 50 100 500 1K 5K 10K 50K 100K Resistance (ohms) JERATING CURVE 100 & s g a QO 50 3 Oo a 0 10 20 30 40 50 60 70 80 90 100 110 120 130 Ambient Temperature (C) able 1 Type Description ABW3 Basic Single Potentiometer. Solder terminals. AR-ABW3 Single Potentiometer with Mains Switch. 2-ABW3 Double Ganged Potentiometer. AR-2-ABW3 Double Ganged Potentiometer with Mains Switch. C2-ABW3 Dual Potentiometer independently operable through concentric spindles. AR-C2-ABW3 Dual Potentiometer independently operable through concentric spindles with Mains Switch. C1L-ABW3 Double Ganged Potentiometer connected as constant Impedance L Pad Attenuator. C1T-ABW3 Triple Ganged Potentiometer connected as constant Impedance T Pad Attenuator.Type ABWS3 single Potentiometer ' Oimensions in milimetres 198980184 | oi 95 dia x 32 TPI Whit form ' 63 dia I Type AR-ABW3 Single Potentiometer with Mains Switch 35,7 195 950764 6 1,6] B max _* t [ | | 95 dia x 32 TPI , Whit form | 6.3 dia Ly ~ | S Ir 1 26 dia = I{{ J. S | , Se L 31 | a A L Type 2-ABWS3 ual Ganged Potentiometer | Dimensions in millimetres 3,2 41,3 - [A 95 pS a F | bg 127 w-- 429 dia yo Alternative key position : ! Alternative key position ar | 429 dia _+ Alternative key ~ ! positionType C2- ABW3. Dual Concentric Potentiometer (Panel unit operated by outer spindle, rear unit operated by inner spindle) rn eres 3,2 4 A i I C 2.4 [es x 32 TP1 Whit form | | 6,7 dia 9,5 or 6,4 nO BO a, 9,5 Alternative key args + position Type C1 L- -ABW3 Dual Ganges Potentiometer connected as Constant Impedance a Pad nant C5 ha ten ate wee os 10 s 0 8 10 -15 50 as 0 38 25 70 1% 10 5 0 w 0 0 7 5 HO ww WO % Rotation Curves are approximate R 2g e o Cc Constant Impedance Constant impedance to the source ts substantially maintained throughout the entire rotation of the L pad control. The control may, of course, be wired to present a constant impedance to either source or load, but not both. ATTENUATION Db IMPEOANCE DEVIATION % EET Fe Type Bm Be caadlcarete insane ~ IMPEDANCE DEVIATION % ATTENUATIONDd 10 sm 7 8 OH 4 HM OM OO % Rotation Curves are approximale R R cic Source Rear Centre Panei Load Constant impedance Both input and output impedances of Series CIT-ABW 3 T-pads are substantially constant throughout the entire range passe neste ate ta in nanometre ak we 41,3 Mounting face 9,5 or 6.4 6,3 dia Multiple Speaker Controls Several loudspeakers operated from a single source may be individually controlled by using several L pads without affecting the source load Terminal Connections For constant impedance to the source, Series CIL-ABW 3 L pads should be connected as indicated on wiring detail. sMotegn te yo Re rae o ee wae ah ~ - 58 face) 9 5 or 6.4 Centre Terminal Connections CIT-ABW 3 T-pads are connected as shown In wiring detail. Terminal Designation Letters R, L and C refer to right, left and centre terminals respectively, as iNustrated 30 20,6R Alternative key position Terminal Designation Letters R, L and C refer to the right, left and centre terminals respectively, as ilustrated. Power Rating 15 x 32 TP1 form The maximum safe d.c_ power rating is 2.5 watts, though in audio applications these controls have been successfully used up to 10 watts. ee ee wee wm we ~ eC1 T-ABW3 Triple Ganged | Potentiometer connected as Constant Impedance T Pad 20,6R 95 Alternative key positior Power rating The maximum safe dc. power rating is 2.5 watts, though in audio applications these controls have been successfully used up to 10 watts