Emerson Process Management    Austin, TX 78754
May 08, 2013 Combining knife-edge sensing design with aerospace quality switch technology, Fisher® L2e uses force-balanced displacer sensor to detect level of single liquid or interface of 2 liquids. Fully electric level control loop, consisting of L2e level controller used in conjunction with Fisher easy-Drive™ electric actuator powered D3 or D4 control valve, helps to eliminate emissions. In addition, zero and span adjustments enable tuning for variety of level loop applications.

Gizmo Engineering    Rochester, NY 14613
May 02, 2013 Built to survive wet, corrosive, aggressive environments, TANK ALARM comes with 10 ft long piggyback cord and mounts directly on tank with 2 in. NPT thread. Liquid level is maintained automatically between high and low float switch, which cycles pump on and off. If level gets too high, third float switch triggers high-visibility flashing beacon light and audio buzzer. Adjustment of working depths for high/low level control points is done instantly and without any tools using thumbscrews.

Endress + Hauser Inc.    Greenwood, IN 46143
Dec 04, 2012 Liquiphant FailSafe FTL8x series offers 2 relay outputs, 4–20 mA output that connects to failsafe switching unit with 2-channel output, safety contacts, and safety locking function. Built-in diagnostics monitor tuning fork-type sensor for damage, corrosion, material buildup, and mechanical blocking, and switches support min and max level detection in liquids from -76 to +536°F, at pressures up to 1,450 psi, viscosity up to 10,000 mPa-s, and densities from 0.4–2.0 g/cm³.

Greyline Instruments, Inc.    Massena, NY 13662
Nov 13, 2012 Equipped with non-contact ultrasonic sensor, PSL 5.0 is suitable for sewage lift stations, wet wells, and storage tanks. Users can also connect loop-powered pressure sensor for redundant sensing in applications with foam or grease. Controller will continuously recalibrate pressure sensor and automatically switch back and forth from ultrasonic to pressure sensor as required. In addition to isolated 4-20 mA output, PSL 5.0 provides 6 programmable control relays and automatic pump run time logging.

Bindicator    Spartanburg, SC 29306
May 15, 2012 Providing electronic vibratory level control, LP1000/LP2000 Pulse Point Tuning Fork is effective in lightweight powders and granular solids. Measuring device features vibration-resistant surface mount components and universal power supply that includes 24 Vdc. With FM and ATEX agency approvals, unit is dust ignition proof and explosionproof.

Kadant Johnson, Inc.    Three Rivers, MI 49093
Jan 06, 2012 Designed to retrofit major float-operated pump brands, Float-Free Level Control Assembly features drop-in, bolt-on mounting flange to facilitate upgrade. Unit incorporates 2-probe level control and NEMA classified control assembly. External to tank, motive pressure 3-way valve enables visual check of operation. Assembly has no moving parts in contact with condensate, and no springs, linkage, or floats that are prone to wear and failure.

Motor Protection Electronics, Inc.    Apopka, FL 32703
Sep 06, 2011 Powered by 24 Vdc, LPC420 senses liquid level and provides 4-20mA analog output for use by pump controller or PLC in liquid level control applications. All setup is done using 4 DIP switches on unit, and sensitivity is set for type of liquid being detected. Analog output delay setting controls how fast analog output transitions from one level output value to another. Supplied in aluminum enclosure, DIN rail mountable unit has no openings through which debris can enter.

Control Works, Inc.    Milford, OH 45150
Mar 08, 2011 Housed in stainless steel NEMA 4X enclosure, Model 331LC offers one solution for 208, 240, or 480 V 3-phase pumps with overload protection up to 32 A each. Panel includes CW6CDC 4-20 mA controller, solid state alternator relay, run lights, and elapsed time meters as well as lag delay circuitry, seal leak lights, HAND/OFF/AUTO selector switches, and alarm horn. High level flashing red alarm beacon includes dry contact for telemetry connection.

Carlo Gavazzi, Inc.    Buffalo Grove, IL 60089
Jan 21, 2011 CLD/P Series offers various functions as well as tank-well option, which lets one device control levels in above ground tank and underground well to prevent either running dry. Master-slave option allows up to 7 controllers to be directly connected to each other, and all functions and adjustments are made via rotary switches and potentiometers on face of individual units. Single-point controller includes time delay function, allowing tank filling/emptying with single level point.

Motor Protection Electronics, Inc.    Apopka, FL 32703
Jan 05, 2011 Evaluated and tested to UL913, Version 7 standard, Intrinsically Safe Duplex Controller comes standard with Modbus RS232 serial port and optional Ethernet port for Modbus TCP/IP communication. Unit interfaces with Conductance Level Probes as well as floats for input level measurement. Available in panel mount, DIN-rail mount, and surface mount options, controller includes Push-to-Test feature, which energizes inputs and outputs in sequential fashion.

Emerson Process Management    Pleasanton, CA 94566
Dec 07, 2010 Intended for SIL 2 safety instrumented systems, Rosemount® 2130 does not require on-site calibration and has built-in fault monitoring/self diagnostics for detecting extreme corrosion of forks and any other internal or external damage to fork sensor. Rosemount 2130 operates in -94 to +500°F temperatures and is available with 316L stainless steel as standard, ECTFE/PFA copolymer coated 316L stainless steel, or corrosion resistant alloy C wet side as well as choice of electronic output types.

BlueLevel Technologies, Inc.    Rock Falls, IL 61071
Nov 24, 2010 Able to detect materials with densities as low as 3.12 lb/ft³, Model VHS is intended for bins with changing materials and where recalibration is to be eliminated. Rod probe design works with process temperatures up to 230°F, and optional design works with process material temperatures up to 320°F. Equipped with universal AC/DC power supply, fail-safe relay output, and ruggedized enclosure, sensor uses piezoelectric technology to create harmonic vibration in absence of material.

Emerson Process Management    Pleasanton, CA 94566
Oct 19, 2010 In addition to displacement sensor technology for measuring liquid level or level of interface between 2 liquids, FIELDVUE(TM) DLC3020f uses digital FOUNDATION fieldbus communication protocol to deliver diagnostics and alerts that help optimize performance. Digital communication also lets users configure, calibrate, and test DLC3020f using AMS Suite software or 475 Field Communicator. Model DLC3020f stores up to 30 logs and can directly replace pneumatic, analog, or HART® transmitters/controllers.

Greyline Instruments, Inc.    Massena, NY 13662
Sep 17, 2010 Intended for use in treatment plant headworks, DLT 2.0 can measure differential level at barscreen as well as open channel flow through flume. It works with 2 non-contacting ultrasonic sensors: one installed upstream from barscreen, and another installed downstream for differential level control. It is also possible to install second sensor in flume to also measure flow. Along with backlit LCD, features include relays for barscreen rake and level control as well as three 4-20 mA outputs.

BinMaster    Lincoln, NE 68507
Jul 07, 2010 Available in 2 models including SHT-120 with standard insertion length of 7.37 in. and SHT-140 with threaded pipe extension that can be customized in lengths from 14 in. to 13 ft, BinMaster SHT vibrating rods have reinforced membrane and piezo system that tolerates process temperatures up to 482°F. Constructed with SS rod probe to prevent bridging and build-up of material on sensor, they are suited for powdered or granular solids with material density of 1¼ pcf to maximum granular size of 1½ in.

Masoneilan Division, Dresser Flow Solutions    Avon, MA 02322
Jan 28, 2010 Integrating level transmitter, controller, and switch functions in single device, 12400 Series provides process control for refining, petrochemical, and energy industries. Unit includes smart filtering, HART® communication protocol compatibility, optional 4-20 mA analog output, and ability to record and store recent data continuously in non-volatile memory. Controller meets SIL2 compliance and is certified in full hazardous areas, including ATEX, IECEx, FM, and FMc/CSA.

McDonnell & Miller    Chicago, IL 60618 5523
Dec 11, 2009 Featuring 1 hp pump relay and adjustable burner and pump settings, Series 1575 is used as low water cut-off, feed water control, and alarm for boilers, vessels, and tanks. Internal LEDs indicate water position and condition, while external LEDs indicate control activity. Probe operation diagnostics include monitors for sensitivity, sequence, and wetted probe. Equipped with 60-sec burner-off time delays, controller is suited for commercial steam and hot water boilers.

Zebra Skimmers Corp    Solon, OH 44139
Mar 09, 2009 Featuring heavy duty, mechanical components, Sump Level Regulator (SLR) activates user's water supply or fluid pump to maintain correct fluid operating level in each machine tool sump or central tank. It has only two moving parts, and offers simple, two-step installation. When coupled with Fill-Station(TM), unit creates automated fluid on demand system.

Greyline Instruments, Inc.    Massena, NY 13662
Feb 06, 2009 Designed for sewage lift stations, wet wells, and storage tanks, PSL Pump Station Level Controller features isolated 4-20 mA output and 6 programmable control relays for pump control, pump alternation, and level alarms. Automatic pump run time logging and reporting system helps operators to plan pump maintenance. Each PSL includes PSL Remote for Windows(TM) Operators software, which can prepare and save calibrations in advance and download to PSL through password-protected RS232 interface.

Omega Engineering, Inc.    Stamford, CT 06907
May 02, 2008 Model LVCN700 Series of non-contact controllers provide fail-safe intelligence with diagnostic feedback for troubleshooting. Pushbutton target calibration features 3-relay outputs that can be configured on single set-point alarm and 3 in. beam diameter for restricted space applications. Protected by PC/ABS NEMA 4X rated enclosure, units are designed for range of corrosive, waste, and slurry-type media, and waste sump applications.