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Top Mounted Level Switches with Porcelain Displacers
Models 613/713 DESCRIPTION
The Model 613 single stage control and the Model 713 two stage, (Dual Actuator), control are top mounted level switches of the adjustable differential type and utilize porcelain as standard displacer material. These controls have solid displacers which are unaffected by pressure, leakage, and collapsing. With a simple field adjustment the displacer can be positioned to any desired elevation below the mounting connection to open and/or close an electric or pneumatic switch. The distance between the on/off or open/close is adjustable from the minimum to the maximum length of the cable, which is 10 feet standard.
FEATURES
• Low cost porcelain displacer material prevents adherence of oils and other contaminants common to applied processes • Simple adjustment of displacers for various switching differentials • Cone top displacers shed debris floating in liquid (such as sewage) • Controls may be supplied with cables up to 60 feet for 600 series and 40 feet for 700 series. • UL & CSA approved
• Model 613 or 713 may be used for pressures up to 1500 PSIG with standard construction and for specific gravities as low as 0.50, for the 613, and 0.60 for the 713.
APPLICATIONS • High Temperature Water or Oils • Petro-Chemical Processes • Pump Control (Adjustable differentials) • Alarm Annunciation
SPECIFICATIONS I
Minimum Switching Differentials vs. Specific Gravity for the 613, 2-½” Displacer Specific Gravity Differential Inches Differential mm.
1.7
1.72 44
1.2 1.6
1.81 46
1.1 1.5
1.91 48
1.0 1.4
2.02 51
.95 1.3
2.15 55
.90 1.2
2.30 58
.85
Minimum Switching Differentials vs. Specific Gravity for the 713, 2-½” Displacer Specific Gravity Differential Inches Differential mm.