ACR Electronics SmartReader Plus Uživatelský manuál stáhnout pdf (Strana 46)

SmartReader Data Loggers

you have assembled (see the Applications section).

2. Determine what sensors, transducers, or transmitters you need to do the job (if not

already present). Compatible transducers for monitoring temperature, humidity,

pressure, speed, and many more variables are available through a wide variety of

vendors (see Selecting Transducers and Transmitters).

3. Modify the channels, externally (using resistors), if required, for maximum resolution (see

Customizing Input Ranges).

4. Write a Custom Equation to convert the internal A/D converter readings from the

transducer or circuit you want to monitor into the proper engineering units required (for

example, a 4-20mA signal representing 0 to 10,000 l/min). For help in writing these

equations refer to the TrendReader guide.

Figure 7-2: Using Transducers with a Power Supply

5. Decide how you are going to power your transducers (if required). You can either use a

standard power supply, creating a circuit like that shown in Figure 7-2 or use batteries,

producing your own self-contained logging assembly (Figure 7-3). For this application

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 102 103

Žádné komentáře

ACR Electronics SmartReader Plus Uživatelský manuál Strana 46