Precision Digital White Papers


Fundamentals of 4-20 mA Current Loops

Back to basics {part 1}: The fundamentals of 4-20 mA current loops

The 4-20 mA current loop is the prevailing process control signal in the industry.

Fundamentals of Loop Powered Devices

Back to basics {part 2}: The fundamentals of loop-powered devices

Learn about the definining characteristics, advantages, and limitations.

Loop vs Line Power

Back to basics {part 3}: Loop vs line power

Understand the key differences between the 2 wire, 3 wire, and 4 wire connections.

Latest White Papers

Why use a loop powered meter?

Why use a loop powered meter?

A simple solution without adding excessive instrumentation or installation costs.

Why a 0 mA Signal is Not Practical

Why a 0 mA signal is not practical

Learn why a 0 mA signal is not usually a practical option.

Loop powered meters with advanced display and control capabilities

Loop-powered indicators with advanced display and control features

Radically improving and expanding the functionality expected from loop powered meters.

Go Wireless - The Easiest Way To Get a Process Signal From Point A to Point B

Go Wireless - The Easiest Way To Get a Process Signal From Point A to Point B

Learn how to easily make your existing system into a wireless solution.

Wireless installation best practices

Four tips for wireless installations

Best practices for planning a successful wireless installation.

Fundamentos de los lazos de corriente de 4-20 mA

De Regreso a lo Básico: Los Fudamentos de los Lazos de Corriente de 4-20 mA

El lazo de corriente de 4-20 mA es la señal de control de procesos predominante en la industria.

Level measurement technologies

Level measurement technologies in the process control industry

A quick overview of level measurement technologies.

Operator climbing stairs on the side of storage tank

Best planning practices for level solutions

Improve the safety, efficiency, and operator confidence in any level application.

Operator in industrial plant

Five considerations for selecting a remote level display

Create a safe, effective, and efficient level measurement system.

Operator Looking at Meters in a Panel

When is a 4-20 mA output needed on my digital panel meter?

Understand the reasons to include a 4-20 mA output before buying.

Digital spiral

Introduction to Modbus Serial Communication

Learn ways to use Modbus and the terms associated with it.

Operator in the field

Unlock the potential of your Modbus® transmitters

Learn the advantages of a Modbus process measurement system.

ISA Alarm Sequencing

ISA alarm sequencing in a nutshell

Learn the basics of the ISA 18.1 standard.

Error message

Ground loops & non-isolated commons

Best practices that can eliminate these two signal connection issues.

Signal noise

Reducing signal noise in practice

Learn what signal noise is, what causes it, and how to prevent it.

Hazardous area

Everything you need to know about hazardous area classifications

Learn the basics of hazardous area classifications.

Open channel flow

How to measure flow rate with level sensors

Level sensors are capable of measuring more than just level.

PD6000 for pump control and level monitoring

Level Monitoring & Pump Control with the ProVu PD6000

Two important tasks done using just one device.

More White Papers

ProVu Series safety interlock feature

A common application for Precision Digital's ProVu series is for monitoring & alarming. In these applications, the meter is not used as a primary controller, but a safety device. As such... Read More

Boosting efficiency in a natural gas flow application

The end user is a natural gas transportation and storage service provider in the USA with a natural gas storage well flow application. The customer's primary concern when considering a system upgrade was to track flow rate and display the rate locally... Read More

Be ready for the summer sun with sunlight readable displays

With the summer months ahead, many are looking forward to bright and sunny days. However, to those who work with process instrumentation outdoors, the sun may seem a never-ending source of frustration...  Read More