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LEVEL MEASUREMENT TECHNOLOGIES How To Q1 2016 Your Top 10 LEVEL Customers of 2015 MEASUREMENT Will Not be Your TECHNOLOGIES In The Process Top 10 of 2016 Control Industry þ What You Should Do How to Two Birds with MEASURE One Stone FLOW RATE Level Indication with Level & Pump Control Sensors NEWPREDIG.COM Redesigned. Responsive. Resourceful. www.predig.com Not a subscriber? Subscribe to ON DISPLAY subscribe.predig.com Table of Contents The Eclectic Engineer: How to Measure Flow Rate with Level Sensors 5 Two Birds with One Stone: Reader’s Level Indication and Pump Control with Brief The PROVU® Series 6 Your Top 10 Customers of 2015 Will Our first issue of 2016 is entirely dedicated to level measurement. Learn about various Not be Your Top 10 of 2016. What You topics on the subject including how to measure Should Do About It. flow rate using level sensors, level indication 9 and pump control using one device, and an introduction to level measurement technologies to guide you in selecting level instrumentation. Make sure to visit our brand new website. The completely redesigned site, now mobile friendly, offers great new features including easy product configurator, lead times checker, and more. Visit www.predig.com. We'd like to hear from you, our readers! Level Measurement Technologies Tell us how we are doing or recommend topics In The Process Control Industry for future articles. Send your feedback to 10 [email protected]. - Precision Digital contact us U.S. & Canada Tech Support 1-800-343-1001 [email protected] International Sales 1-508-655-7300 [email protected] Corporate Office 233 South St • Hopkinton, MA 01748 USA 2 Redesigned. Responsive. Resourceful. PREDIG.COM Watch Videos Check Lead Times Chat Check Stock Industry Resources Mobile Friendly Start browsing now at PREDIG.COM 3 STOP SQUINTING The Trident X2 Makes Your Critical Processes Visible Trident X2 (Upgrade) Old Meter (Replace) Why the Trident X2 Works! Twice Bright 30 Feet 1/8 DIN the Display Sunlight Visibility Fits in Same Height of the Readable Cutout as Competition LEDs Old Meter Upgrade to Trident X2 Now at www.predig.com/trident TRIDENT 4 The Eclectic Engineer How to MEASURE FLOW RATE with Level Sensors Level sensors are capable of measuring more than just level. Flow rate measurement in an open channel, such as a stream, irrigation canal, or unpressurized sewerage pipe, can be accomplished using hydraulic structures known as weirs and flumes. These measure flow rate using the same technologies often applied to tank level measurement, such as bubblers, radar, and ultrasonic level transmitters. Both weirs and flumes function by constricting the flow of the channel and measuring how the fluid level is affected. Their physical characteristics, and therefore their effect on fluid flow, are known variables, so equipment that measures level upstream from the structure can use a series of mathematical equations to determine the flow rate. Weirs function very similarly to dams in that they span the length of the Weir channel and constrict flow. There are Flume many styles of weirs, each meant for a different application, but they all allow fluid to escape through an opening and continue downstream. Fluid level is measured upstream from the weir. Flumes, on the other hand, typically consist of three sections: a constricting end, a throat, and an expanding end. The flume is partially submerged in the channel. The throat constricts the flow and the fluid level is measured at the constricting end. 5 ® Two Birds with One Stone PROVU Level Features Level Indication and ® Pump Control with the PROVU Series by Simon Paonessa Level measurement and pump alternation control for up to eight pumps, control go hand-in-hand, whether it is advanced 32-point linearization for oddly making sure that your tanks stay full or shaped tanks, and automatic round that they don’t overflow. Traditionally, horizontal tank volume calculation. however, these two processes required As a level indicator, the PD6000 separate devices, a pump controller and PD6001 offer easy-to-read, dual- PD6001 and a level indicator. Precision Digital’s line displays with optional SunBright Feet & Inches RO U® P V Series combines both level LEDs which can be read in direct LED Display indication and pump control into one sunlight. The secondary display can device. Not only that, they also offer be used to show level measurement advanced multi-pump alternation control units, volume, or percent full. They functionality which can help maximize are available with up to four onboard For more information on the life-span of your pumps. mechanical relays and 4-20 mA analog multi-pump controllers visit: The PROVU® PD6000 is a bright, output for signal retransmission or pumpcontrol.com easy-to-read digital panel meter that output of some other variable. An accepts either a current (0-20mA, 4-20 available external expansion module mA) or voltage (±10 V, 0-5 V, 1-5 V) brings the total available relays to eight. analog input from any analog output As a pump controller, the PD6000 level transmitter. The PD6001 provides and PD6001 can use the available eight convenient level readings in a format relays to alternate the usage of up to operators are used to seeing, feet and eight pumps at programmed high or low inches. Both models feature multi-pump 6 ® PROVU Level Features Multi-Pump Control 32-Point Linearization Round Horizontal Tanks Control and alternate Linearizes the level of Automatically calculates up to 8 pumps oddly shaped tanks volume mA % Dual-Scale Feet & Inches Display Display level in two Convenient level display scales in feet and inches set points. When the level reaches the the next set point will activate a second first set point, the controller will activate pump. This will continue until all pumps the first pump. When the level then associated with the pump controller reaches the associated reset point, the have been activated. Additional relays active pump will be on the controllers can deactivated. The be used to activate next time this set [The] ProVu® Series external alarms or PD6000 point is reached, combines both level other systems if, Level Indicator and the controller will indication and pump control for example, the Pump Controller activate a different into one device... they also level measurement pump in the group. reaches an offer advanced multi-pump This spreads the emergency condition. alternation control... amount of system The advanced wear evenly among pump control and by Simon Paonessa - Technical Writer the pumps, rather than constantly level indication features of the PROVU® Precision Digital Corporation utilizing a main pump and leaving the PD6000 and PD6001 make combining backup pump to remain unutilized and level indication and pump control a deteriorated over time, potentially failing breeze. They help not only by providing when it is needed most. easily readable level indication and If a pump does not function convenient pump control, but also by properly or the rate of change is more extending the life of your pumps by way than a single pump can keep up with, of spreading out system wear. 7 3 IN LEVEL 46 FT READINGS IN 9 IN 6 FEET & IN 3 IN INCHES 45 FT 9 IN Many tanks are manually gauged in feet and inches and that is often the way operators are used to seeing the data. Unfortunately, many digital meters can only display in decimal format. Precision Digital’s new Feet & Inches meters solve that dilemma by providing the tank level in the way that operators are used to dealing with it: in Feet and Inches! Benefits Clear level readings in feet, inches, FT & IN and 8th or 16th of an inch Intuitive level indication with tank height bargraph Work with any 4-20 mA or Modbus multivariable transmitters Program without removing cover with SafeTouch® buttons Explosion-proof. Complete product approved Benefits and features vary by model and/or options available. See Feet & Inches Displays www.predig.com/feetandinches 8 Letter from Sales by Chuck Arcovitch US Distribution Sales Manager Precision Digital Corporation Your Top 10 Customers of 2015 Will Not be Your Top 10 of 2016 þ What You Should Do About It A Message for Precision and high tech companies, but for your You need to be able to answer these business as well. What it means for your questions, and you must be motivated to Digital Distributors business may not all be clear, but one change those numbers. thing that is for certain is that you cannot Your business is changing, and you count on your top 10 customers of 2015 The only way to change with the need to make sure you are promoting being the top ten customers of 2016, and changing world of 2016 and beyond is the products, services, and selling you cannot count on the same selling to change your approach. It’s no longer techniques that will keep you growing methods and sales calls resulting in the good enough to sell the same products in 2016. same business. to the same people. Precision Digital can help you. We can provide you with the At the time I am writing this, the price As the U.S. Distribution Sales tools, the messaging, and the products of a barrel of WTI oil is $38.50. A year Manager, I try to help our distributors you need in order to grow your sales in a ago, the price was $56.50; and even figure out what to do about this. How do changing market by helping you promote higher before that. While not everyone you, as a distributor, plan for change? new products for your existing customers’ may be touched by this kind of change, applications.
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