Application Notes

How Temperature Transmitters Optimize Solar Panel Performance – 8400835

Monitoring Weather Conditions Helps Optimize Performance of Utility-Scale Solar Panel Arrays Swinerton Renewable Energy has selected weather stations from Columbia Weather Systems to provide meteorological data to their proprietary SCADA (Supervisory Control and Data Acquisition) system at solar project sites. The construction company offers turn-key solar power solutions for utility-scale and distributed generation projects. Joe…

How to Create a 4-20mA Output Proportional to Flow Rate – 8400304

Problem: A flow sensor has a non-linear reversed output. Solution: Create a 4-20mA output proportional to flow rate using the following Acromag transmitter and software products: Model: 811T-0500 DC to DC Isolated Transmitter Model: 800C-SIP Software Interface Package Optional: PS5R-D24 Power Supply The 811T offers a 25 break-point table for sensor linearization. Input percentage is…

How to Monitor RTDs for Temperature Differential – 8401008

Defining the Need: Monitor three RTD’s on a stack and transmit two differential 4-20mA signals representing -7 to 18°F. Each RTD transmitter is calibrated -20 to 120°F. Solution: Model 892M-0500 math module (qty. 3) Model 800C-SIP software interface pkg. (qty. 1) Model PS5R-VD24 power supply (qty. 1)   Download PDF for complete application note.

How to Calculate a V-notch Weir Discharge Rate Q (GPH) – 8401009

Defining the Need: Calculate the discharge rate Q (g.p.h.) output of a V-notch weir. Provide a 4-20mA output for flowrate and frequency output for totalization and alarm output for high-level alarm. Solution: Model 892M-0500 DC output math module Model 895M-0800 freq. output math module Model 800C-SIP software interface package Optional: Model PS5R-VD24 power supply  …

How to Use a Toroidal AC Current Sensor – 8401044

Using Acromag’s Toroidal AC Current Sensor Model 5020-350 Transmitters with DC current input can be used in conjunction with an external toroidal AC current sensor in order to precondition an AC current input signal. This sensor is a highly accurate toroidal instrument transformer; which converts an AC current signal to a safe, low-level, DC milliampere…

How to use Thermocouple Transmitters to Monitor Temperatures in Paint Systems – 8400818

This document illustrates using Acromag’s TT330 Series to monitor high temperatures in an automotive paint curing oven and transmit to the existing PLC 4-20mA input card/software setup. Defining the Problem The area around an auto manufacturer’s paint curing ovens is at elevated temperatures affecting the performance of locally installed instrumentation. Placing signal conditioners rated for…

How to Reduce PLC Costs with Signal Conditioners – 8400893

Defining the Problem: A small scale bottling operation will be controlled by PLCs. Multiple sensors, including; conveyor speed (frequency), bearings temperature (RTD), liquid level (4–20mA) and tank pressure (4–20mA), will connect to the PLCs. The Solution: Procuring one type of PLC input card, instead of multiple cards for many different signals, is an affordable solution….