GRAPHTEC midi LOGGER GL220 - Connecting the Signal Input Cables; Terminal Configuration and Signal Types

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CHAPTER 2 Checks and Preparation
2.5 Connecting the Signal Input Cables
This section describes how to connect the signal input cables.
Terminal Configuration and Signal Types
+.........................................High-voltage terminal (terminal for high-voltage input signals)
–..........................................Low-voltage terminal (terminal for low-voltage input signals)
Item Description
Input configuration Isolated input, scanning
Analog voltage 20, 50, 100, 200, 500 mV/F.S.; 1, 2, 5, 10, 20, 50 V/F.S.; 1-5V
Thermocouples K, J, E, T, R, S, B, N, W (WRe 5-26)
A/D resolution 16-bit (Effective resolution: About 1/40,000 of the +/- range)
Filter Off, 2, 5, 10, 20, 40
Filter operation is on a moving average basis.
The average value of the set sampling count is used.
If the sample interval exceeds 5 seconds, the average value of data ob-
tained in a sub-sample (5 seconds) is used.
Terminal configuration
DC voltage
Compensation wire is
used if it is required.
DC current
Shunt resister
Ex: The current is converted to the voltage in
the shunt register.
For 4 to 20mA current input, installing 250
ohms (0.1%) resister for converting 1 to 5V.
* 250 ohms shunt register is the option B551.
Voltage input
Resistance temperature detector
not available
Thermocouple input
Current input