EHC CONTROL KNOB LOCKS
The EHC Knob Locks are positive friction locking devices for holding precise or critical control settings under conditions of shock and vibration.
Useful where there is danger of accidental jarring or manual contact. Special splash-proof versions feature molded rubber inserts which prevent water leakage down into the control and also serve as dust seals.
Benefits• Positive friction locking system
• Resists shock, vibration, or accidental movement
• Tested under salt spray, humidity, and temperature conditions
• Occupies minimum panel space
• Used with standard off-the-shelf control knobs
• 700,.900 and1.250 diameter knobs
• No special mounting hardware or tools required
• Special water and dust-tight models available
• Made of highest quality materials
• Available in three sizes in either mirror or matte finish
SpecificationsPart No: MS91528 Type: Finish: Diam A: Diam B: Thread: .700 Diam.Knob Standard Mirror 1" .721 3/8-32
KL701 Standard Mirror 1” .721 3/8-32
KL701G 1CC2B Standard Matte 1” .721 3/8-32
KL702 Standard Mirror 1” .721 1/4-32
KL702G 1CC2G Standard Matte 1” .721 1/4-32
KL703 Splash Proof Mirror 1” .721 3/8-32
KL703G 1DD2B Splash Proof Matte 1” .721 3/8-32
.900 Diam.Knob Type: Finish: Diam A: Diam B: Thread: KL901 Standard Mirror 1-5/16” .928 3/8-32
KL901G 2CC2B Standard Matte 1-5/16” .928 3/8-32
KL902 Splash Proof Mirror 1-5/16” .928 3/8-32
KL902G 2DD2B Splash Proof Matte 1-5/16” .928 3/8-32
1.250 Diam.Knob Type: Finish: Diam A: Diam B: Thread: KL1251 Standard Mirror 1-5/8” 1.269 3/8-32
KL1251G 3CC2B Standard Matte 1-5/8” 1.269 3/8-32
KL1252 Splash Proof Mirror 1-5/8” 1.269 3/8-32
KL1252G 3DD2B Splash Proof Matte 1-5/8” 1.269 3/8-32
*The above MS91528 designations are for reference only. Series of knobs used in conjunction with knob lock are MS91528, EH71 and Contemporary.
An eighth turn of the fluted skirt locks the control knob by forcing a rubber bushing against its lower surface. A critical control setting is not affected. An eighth turn to the left frees the knob to rotate freely. Used primarily with potentiometers and similar variable controls, knob locks mount directly to threaded control bushings replacing the nuts and lock washers usually supplied.