As our products are continuously improved, we reserve the right to make any change in the stated specifications and dimensions without prior notice. D271US0504 Data Sheet MJK North America, Inc. P. O. Box 1183 Deerfield, IL 60015-1183 Tel: 1 312 283 5035 1 877 MJK LINK Fax: 1 312 283 5005 [email protected]www.mjk.com 2.71 Float Switch Model 7030 Mercury Free with break resistant cable Environmentally friendly and highly durable. The 7030 Float Switch has a unique counterweight system which incorpo- rates an UL approved 250 V AC / 16 A switch. The cable is a rugged, heavy duty, oil resistant PVC cable, which is virtually unbreakable.
4
Embed
Float Switch Model 7030 / Conductivity Level Switch Model 501 · 2014-07-09 · Traditional mercury switches are replaced with up-to-date ... cable 1 rod. rod Mounting: Cable Thread
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
As our products are continuously improved, we reserve the rightto make any change in the stated specifications and dimensions without prior notice.
D271US0504
Data Sheet
MJK North America, Inc.P. O. Box 1183Deerfield, IL 60015-1183Tel: 1 312 283 5035
Float Switch Model 7030Mercury Free with break resistant cable
Environmentally friendly and highly durable.
The 7030 Float Switch has a uniquecounterweight system which incorpo-rates an UL approved 250 V AC / 16 Aswitch. The cable is a rugged, heavyduty, oil resistant PVC cable, which isvirtually unbreakable.
The exceptional reliability of the 7030 LevelSwitch makes it very suitable in many highlyautomated systems to provide additionalprotection against control system failures,preventing pumps from dry running etc.
Traditional mercury switches are replacedwith up-to-date environmently friendlymaterials in the 7030 Float Switch.
Features • Environmental friendly - no mercury!• The float housing is made from
polypropylene for durability.• Very reliable electromechanical contact
system - guaranteed up to 20 millionoperations.
• The changeover switch can handle loadsup to 16 A AC so a motor starter can beconnected directly.
• Delivered with 39 ft of rugged, oilresistant cable.
A hermetically sealed microswitch isactivated by a moving counterweight whenthe float changes its position in the fluid.The changeover hysteresis can be adjustedby means of a counterweight placed on thecable.
The counterweight also ensures that the7030 float switch is always correctlypositioned and makes the bend of thecable less sharp.
Price competitive and reliable system for control of levels.
General • For mounting a special bracket isavailable, which can be mounted directlyon the wall or in combination with MJKmodular fittings.
The level switch sends an alternatingvoltage to the electrodes. When the liquidconnects the electrodes, the currentrunning between these is amplified and theoutput relay is activated. Two electrodescan be connected to the unit for thedetection of one level, or three electrodes
Operation
Data Sheet Conductivity Level Switch model 501
MJK North America, Inc.P. O. Box 1183Deerfield, IL 60015-1183Tel: 1 312 283 5035
The Conductivity Level Switch type 501 is asimple and price competitive system for thecontrol of levels.The system includes a transmitter andvarious level electrodes.
can be connected for the detection of twolevels; one for start and one for stop. Incases where the liquid is in a conductivetank or where e.g. a metal pipe is inconstant contact with the liquid, it is onlynecessary to use one respectively twoelectrodes.
Conductivity Level Switch type 501Order no: 209820 202830
Mounting: DIN rail
Power 115 V AC ±10%, 12 V DCsupply: consumption approx. 4VA