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MLS-3, MLS-3Ex Level Switches Description: The MLS-3 and MLS-3Ex are electrically the same. The Ex version comes with an explosion-proof housing with terminal block. The MLS-3 switch is a hermetically sealed BI-Stable latching reed switch with SPDT Form C contacts. The switch is actuated by the float and latches, thus maintaining the contact after the float continues to rise or fall with level. The MLS-3 is best suited for low power alarm signals. MLS-5Ex and 10Ex Series Level Switches NOTE: These switches require power. Description: The MLS-5Ex and MLS-10Ex-R switches come in explosion-proof housing (same as MLS-3Ex) with terminals and hermetically sealed relays rated for 5 and 10 Amp, 2 Form C, DPDT contacts. The relay is actuated by the float and latches, thus maintaining the contact after the float continues to rise or fall with the level. These are best suited for alarm signals or pumps. PS-2 / PS-2H Level Switches Description: The PS-2 is a pneumatic switch designed to control air and natural gas from 15 to 100 psi. The PS-2 is rotary cam activated and incorporates a non-bleed switch. When the float passes, the cam rotates and latches the switch in the open position. This will allow unobstructed airflow. When the float moves back in the opposite direction the switch unlatches and blocks the airflow. The nobleed design of the PS-2 makes it ideal for controlling applications requiring natural gas. The PS-2 can also be used to control pneumatic alarms, pumps and valves. |
