293
Application Measurement
11.11 Application Measurement
Recording instrumentation signals (4-20 mA)
This section introduces a method for recording current output (4-20 mA) from instrumentation
devices.
Average values for each minute can also be recorded using numerical calculations.
• Applicable modules: U8550, U8551, U8552, U8553, LR8530, LR8531, LR8532, LR8533
• You will need: An input cable and a 250
Ω
shunt resistor
Instructions
1
Connect the input cable and the 250
Ω
shunt resistor to the channel being measured.
Connect the shunt resistor between the positive and negative input terminals.
See “Connecting voltage cables and thermocouples” in the Quick Start Manual.
2
Connect the input cable to the instrumentation device’s current output (4-20 mA) terminal.
3
On the
[Unit]
screen, set the data refresh interval to
[Auto]
.
>
>
4
4
4
4
4
Configure the settings as follows:
Recording interval
5 s
Recording time
Specified time, 1 hour (0 Days 01:00;00)
11
Knowledge and Information
Содержание LR8450
Страница 68: ...64 Observing Waveforms Alarm...
Страница 72: ...68 Observing Waveforms 3 Numerical calculation Numerical calculation results...
Страница 131: ...128 Acquiring Data with a Computer PC...
Страница 175: ...172 Controlling the System...
Страница 233: ...230 Controlling the Instrument with Communication Commands...
Страница 271: ...268 Plug in Module Specifications...