6742-30 HERGA, 6742-30 Datasheet
6742-30
Specifications of 6742-30
Related parts for 6742-30
6742-30 Summary of contents
Page 1
... Pressure & Vacuum Switches ...
Page 2
... Our distributor network covering the worlds major markets enables technical help and assistance to be just a phone call away. Herga’s approval to ISO 9002 ensures that we are fully in control of our quality. However, this is just the starting point for an aspiring World Class company. ...
Page 3
... Printed circuit board mounted, pressure/vacuum switches. UL versions available. Range from (0.015 Bar - 1.0 Bar Pressure) (-0.015 Bar - 0.670 Bar Vacuum). 6741 and 6742 Medium Pressure Switches Constructed in Nylon 12 material (pressure range 0.1 Bar to 8.2 Bar). Single or double pole in 8 adjustable switch ranges. UL versions available. ...
Page 4
... A Herga individually packed in plain carton B Herga vacuum form tray (for quantities 10+) 1999 FOR FURTHER INFORMATION TEL: +44 (0)1284 701422 FAX: +44 (0)1284 753112 As a consequence of our policy of continual improvement, we reserve the right to change without notice any detail in this publication. Please see our Conditions of Sale. ...
Page 5
... Herga do not accept liability for any pressure operated device used outside the pressure range specified by the company. Note: differentials are approximate = Suitable with modifications ...
Page 6
... FOR FURTHER INFORMATION TEL: +44 (0)1284 701422 FAX: +44 (0)1284 753112 As a consequence of our policy of continual improvement, we reserve the right to change without notice any detail in this publication. Please see our Conditions of Sale. Gold contacts available Other pressures available PSI Multiple cap and spout options available 6773 ...
Page 7
... Vacuum and Pressure Switch Range A miniature, compact low pressure switch designed for direct fitting by solder pins to printed circuit boards. Both vacuum and pressure ports are provided making the unit ideal for differential switching. Typical applications are indicators, emergency cut-out and alarms, filter and low pressure/vacuum monitoring ...
Page 8
... Spring 0.1A Weight 1 Model 10A 1 21A 6742-20 Ind. (Pf 0.75 Motor) 6742-30 0.05 N/A 6742-40 ----- ----- 6742-50 6742-60 6742-70 6742-80 6742-90 Special options are available for quantity orders Diaphragms in silicon rubber, nitrile, EPDM Switches with wide or close differentials Springs in stainless steel ...
Page 9
... Medium Pressure Switches Suitability for use with different operating media Pressure Medium 6742/20/30/40 Chemical Compatibility Acetone Ammonia (Liquid) Amyl Alcohol to 20˚C Automotive Brake Fluid Beer Benzyl Alcohol Butane Carbon Dioxide - Dry Citric Acid Copper Sulphate (Sol.) Compressed Air ...
Page 10
... Note: Dry Switching If switching low power circuits, low current (4 to 100 milliamperes) and low voltage (below 30V), consult herga for special switches Herga do not accept liability for any pressure operated device used outside the pressure range specified by the company. 1999 FOR FURTHER INFORMATION TEL: +44 (0)1284 701422 FAX: +44 (0)1284 753112 As a consequence of our policy of continual improvement, we reserve the right to change without notice any detail in this publication ...
Page 11
... Low Pressure Switches Suitability for use with different operating media Pressure Medium Chemical Compatibility Acetone Ammonia (Liquid) Amyl Alcohol to 20˚C Automotive Brake Fluid Beer Benzyl Alcohol Butane Carbon Dioxide - Dry Citric Acid Copper Sulphate (Sol.) Compressed Air Cutting Oil ...
Page 12
... Operation A Normally Open - Pressure B Normally Closed - Vacuum 3. Bleed Adjuster Options A Bleed A side only, Vacuum N/O to N/C, Pressure N/C to N/O B Bleed B side only, Vacuum N/O to N/C, Pressure N/C to N/O C Bleed both sides Vacuum / Pressure D No bleed variant either side Vacuum / Pressure 4. Bleed Setting ...
Page 13
... This means that it can operate at a high cycle rate with low pressure, vacuum or pressure differential. This design feature can be used when measuring pressure pulses such as on component counting applications and used with herga Safe Edges ...
Page 14
... Note: Dry Switching If switching low power circuits, low current (4 to 100 milliamperes) and low voltage (below 30V), consult herga for special switches Herga do not accept liability for any vacuum operated device used outside the pressure range specified by the company. 1999 FOR FURTHER INFORMATION TEL: +44 (0)1284 701422 FAX: +44 (0)1284 753112 As a consequence of our policy of continual improvement, we reserve the right to change without notice any detail in this publication ...
Page 15
Vacuum Switches Suitability for use with different operating media Vacuum Medium Diaphragms Chemical Compatibility Acetone Ammonia (Liquid) Amyl Alcohol to 20˚C Automotive Brake Fluid Beer Benzyl Alcohol Butane Carbon Dioxide - Dry Citric Acid Copper Sulphate ...
Page 16
... Pressure Conversion Table 2 P.S.I in/H 0 in/Hg mm/H 0 mm/Hg kg/ 1.0 27.71 2.036 703.1 51.75 .0703 1.1 30.45 2.240 773.4 56.89 .0773 1.2 33.22 2.443 843.7 62.06 .0844 1.3 35.98 2.647 914.0 67.23 .0914 1.4 38.75 2.850 984.3 72.40 .0984 1.5 41.52 3.054 1055 77 ...
Page 17
Certification Markings Country Agency Australia SAA Austria OVE Belgium CEBEC Canada CSA Denmark DEMKO Europe MANY Finland FEI France UTE Germany VDE India ISI Ireland IIRS Italy IMQ 1999 FOR FURTHER INFORMATION TEL: +44 (0)1284 701422 FAX: +44 (0)1284 753112 ...
Page 18
... Note: Herga can offer many other variants of electrical housings in size and colour up to IP67. We also manufacture world-wide (plug in) switch housings with or without cordsets in conjunction with our airswitching systems. Please contact us with your specific requirements . ...
Page 19
... REQUIREMENTS: __________________ PRESSURE. __________________ VACUUM. _________________ DIFFERENTIAL PRESSURE. IF PRESSURE OR VACUUM MEASURED GAUGE (AS IN CATALOGUE) OR ABSOLUTE? ___________________________________________ ________________ INCHES WG _________________ PSI GAUGE HERGA TO SET WE WILL SET MAX PRESSURE/VACUUM UNIT WILL BE SUBJECTED TO ___________________________ SETTING PREFERENCE ±__________________ MAX DIFFERENTIAL (DIFF. BETWEEN RISE & FALL) ________________________________ MIN DIFFERENTIAL _______________________ ...
Page 20
...